/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=LOWLEXORDER --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_spec3_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:21:48,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:21:48,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:21:48,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:21:48,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:21:48,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:21:48,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:21:48,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:21:48,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:21:48,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:21:48,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:21:48,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:21:48,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:21:48,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:21:48,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:21:48,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:21:48,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:21:48,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:21:48,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:21:48,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:21:48,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:21:48,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:21:48,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:21:48,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:21:48,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:21:48,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:21:48,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:21:48,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:21:48,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:21:48,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:21:48,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:21:48,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:21:48,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:21:48,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:21:48,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:21:48,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:21:48,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:21:48,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:21:48,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:21:48,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:21:48,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:21:48,387 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 [2020-09-24 21:21:48,444 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:21:48,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:21:48,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:21:48,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:21:48,446 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:21:48,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:21:48,446 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:21:48,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:21:48,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:21:48,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:21:48,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:21:48,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:21:48,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:21:48,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:21:48,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:21:48,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:21:48,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:21:48,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:21:48,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:21:48,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:21:48,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:21:48,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:21:48,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:21:48,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:21:48,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:21:48,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:21:48,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:21:48,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:21:48,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:21:48,454 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:21:48,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:21:48,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:21:48,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:21:48,937 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:21:48,937 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:21:48,939 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2020-09-24 21:21:49,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9938b6c6d/8ed91f04505a4fd8a7a4717ce7adf809/FLAG7f8c513ad [2020-09-24 21:21:49,664 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:21:49,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2020-09-24 21:21:49,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9938b6c6d/8ed91f04505a4fd8a7a4717ce7adf809/FLAG7f8c513ad [2020-09-24 21:21:49,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9938b6c6d/8ed91f04505a4fd8a7a4717ce7adf809 [2020-09-24 21:21:49,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:21:49,962 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:21:49,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:21:49,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:21:49,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:21:49,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:49" (1/1) ... [2020-09-24 21:21:49,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:49, skipping insertion in model container [2020-09-24 21:21:49,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:21:49" (1/1) ... [2020-09-24 21:21:49,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:21:50,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:21:50,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:21:50,462 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:21:50,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:21:50,724 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:21:50,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50 WrapperNode [2020-09-24 21:21:50,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:21:50,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:21:50,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:21:50,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:21:50,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50" (1/1) ... [2020-09-24 21:21:50,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50" (1/1) ... [2020-09-24 21:21:50,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50" (1/1) ... [2020-09-24 21:21:50,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50" (1/1) ... [2020-09-24 21:21:50,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50" (1/1) ... [2020-09-24 21:21:50,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50" (1/1) ... [2020-09-24 21:21:50,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50" (1/1) ... [2020-09-24 21:21:50,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:21:50,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:21:50,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:21:50,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:21:50,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50" (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 [2020-09-24 21:21:50,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:21:50,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:21:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:21:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:21:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:21:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:21:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:21:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:21:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:21:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:21:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:21:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:21:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:21:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:21:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:21:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:21:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:21:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:21:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:21:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:21:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:21:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:21:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:21:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:21:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:21:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:21:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:21:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:21:50,956 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:21:50,956 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:21:50,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:21:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:21:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:21:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:21:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:21:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:21:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:21:50,958 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:21:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:21:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:21:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:21:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:21:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:21:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:21:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:21:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:21:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:21:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:21:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:21:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:21:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:21:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:21:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:21:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:21:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:21:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:21:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:21:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:21:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:21:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:21:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:21:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:21:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 21:21:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:21:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:21:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:21:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:21:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:21:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:21:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:21:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:21:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:21:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:21:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:21:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:21:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:21:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:21:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:21:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:21:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:21:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:21:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:21:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:21:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:21:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:21:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:21:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:21:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:21:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:21:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:21:52,160 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:21:52,160 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:21:52,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:52 BoogieIcfgContainer [2020-09-24 21:21:52,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:21:52,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:21:52,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:21:52,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:21:52,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:21:49" (1/3) ... [2020-09-24 21:21:52,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583295e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:52, skipping insertion in model container [2020-09-24 21:21:52,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:21:50" (2/3) ... [2020-09-24 21:21:52,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583295e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:21:52, skipping insertion in model container [2020-09-24 21:21:52,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:21:52" (3/3) ... [2020-09-24 21:21:52,177 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2020-09-24 21:21:52,190 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:21:52,205 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:21:52,228 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:21:52,271 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:21:52,272 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:21:52,272 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:21:52,272 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:21:52,273 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:21:52,273 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:21:52,273 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:21:52,273 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:21:52,318 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-09-24 21:21:52,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 21:21:52,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:21:52,359 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] [2020-09-24 21:21:52,360 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:21:52,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:21:52,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1309084967, now seen corresponding path program 1 times [2020-09-24 21:21:52,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:21:52,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922464851] [2020-09-24 21:21:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:21:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:52,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:53,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:57,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:57,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 21:21:57,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:21:57,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-24 21:21:57,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:57,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:21:57,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:21:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 21:21:57,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:21:58,369 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:21:58,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:21:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:58,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:58,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:58,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:21:58,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-24 21:21:58,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:58,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:21:58,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:21:58,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:21:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:58,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:58,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:58,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:21:58,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:58,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:21:58,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:58,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:58,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:58,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:21:58,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:58,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:21:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:58,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:58,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:58,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:21:58,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:21:58,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:21:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:58,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:21:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:58,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:58,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:58,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:58,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:21:58,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:58,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:21:58,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:58,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:21:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:58,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:58,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:58,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:21:58,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:58,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:21:58,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:21:58,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:21:58,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:21:58,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:58,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 21:21:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:58,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:59,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:59,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:59,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:59,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:21:59,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:59,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:21:59,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:59,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:21:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 21:21:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:59,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:59,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:59,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:59,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:21:59,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:21:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:59,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:21:59,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 21:21:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:21:59,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:21:59,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:21:59,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:21:59,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:21:59,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:21:59,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:21:59,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:21:59,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:21:59,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:21:59,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:21:59,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:21:59,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922464851] [2020-09-24 21:21:59,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:21:59,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:21:59,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238716694] [2020-09-24 21:21:59,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:21:59,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:21:59,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:21:59,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:21:59,127 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 4 states. [2020-09-24 21:21:59,733 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:00,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:00,756 INFO L93 Difference]: Finished difference Result 450 states and 535 transitions. [2020-09-24 21:22:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:22:00,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 21:22:00,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:00,779 INFO L225 Difference]: With dead ends: 450 [2020-09-24 21:22:00,779 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 21:22:00,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:22:00,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 21:22:00,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 242. [2020-09-24 21:22:00,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-24 21:22:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 260 transitions. [2020-09-24 21:22:00,913 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 260 transitions. Word has length 153 [2020-09-24 21:22:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:00,916 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 260 transitions. [2020-09-24 21:22:00,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:22:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 260 transitions. [2020-09-24 21:22:00,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 21:22:00,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:00,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:22:00,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:22:00,928 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:00,929 INFO L82 PathProgramCache]: Analyzing trace with hash 471162040, now seen corresponding path program 1 times [2020-09-24 21:22:00,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:00,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129371917] [2020-09-24 21:22:00,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:01,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:01,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:01,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:04,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:05,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 21:22:06,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:22:06,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 21:22:06,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:22:06,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:22:06,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 21:22:06,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:22:06,369 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:06,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:06,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-24 21:22:06,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:06,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:22:06,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:06,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:06,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:06,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:06,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:06,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:06,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:06,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:06,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:06,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:06,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:06,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:06,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:06,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:06,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:22:06,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:06,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:06,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:06,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:06,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:06,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:06,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:06,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:06,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 21:22:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:22:06,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:22:06,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:22:06,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:22:06,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:22:06,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:06,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:06,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:06,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:06,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:22:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:06,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:06,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:06,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 21:22:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:06,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:06,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:06,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:06,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:06,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 21:22:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:06,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:06,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:06,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:06,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:06,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:06,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:06,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:22:06,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129371917] [2020-09-24 21:22:06,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:06,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:22:06,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630106956] [2020-09-24 21:22:06,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:22:06,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:06,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:22:06,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:22:06,823 INFO L87 Difference]: Start difference. First operand 242 states and 260 transitions. Second operand 6 states. [2020-09-24 21:22:07,360 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:08,700 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:22:09,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:09,819 INFO L93 Difference]: Finished difference Result 586 states and 691 transitions. [2020-09-24 21:22:09,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 21:22:09,820 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 21:22:09,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:09,826 INFO L225 Difference]: With dead ends: 586 [2020-09-24 21:22:09,826 INFO L226 Difference]: Without dead ends: 454 [2020-09-24 21:22:09,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:22:09,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-09-24 21:22:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 380. [2020-09-24 21:22:09,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-24 21:22:09,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 420 transitions. [2020-09-24 21:22:09,917 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 420 transitions. Word has length 162 [2020-09-24 21:22:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:09,920 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 420 transitions. [2020-09-24 21:22:09,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:22:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 420 transitions. [2020-09-24 21:22:09,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-24 21:22:09,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:09,923 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] [2020-09-24 21:22:09,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:22:09,923 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:09,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:09,924 INFO L82 PathProgramCache]: Analyzing trace with hash 158735571, now seen corresponding path program 1 times [2020-09-24 21:22:09,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:09,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002132119] [2020-09-24 21:22:09,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:10,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:10,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:10,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:14,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:14,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-24 21:22:14,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:14,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 21:22:14,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 21:22:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:22:14,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:15,274 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:15,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:15,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 21:22:15,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:15,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:15,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:15,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:15,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:15,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:15,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:15,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:15,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:15,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:15,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:15,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:15,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:15,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:15,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:15,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 21:22:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:22:15,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:22:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-24 21:22:15,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:22:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:22:15,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:22:15,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 21:22:15,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:22:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:22:15,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:22:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:22:15,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:22:15,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:22:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:15,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:15,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:22:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:15,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:15,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 21:22:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:15,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 21:22:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:15,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:15,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:15,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:15,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:15,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 21:22:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:15,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:15,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:15,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 21:22:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:15,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:15,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:15,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:15,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:15,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:15,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:15,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:22:15,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002132119] [2020-09-24 21:22:15,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:15,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:22:15,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82038311] [2020-09-24 21:22:15,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:22:15,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:15,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:22:15,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:22:15,846 INFO L87 Difference]: Start difference. First operand 380 states and 420 transitions. Second operand 9 states. [2020-09-24 21:22:16,611 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:22:17,337 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:22:17,642 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:22:17,958 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:18,303 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:22:18,622 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:19,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:19,533 INFO L93 Difference]: Finished difference Result 688 states and 793 transitions. [2020-09-24 21:22:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 21:22:19,535 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 186 [2020-09-24 21:22:19,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:19,539 INFO L225 Difference]: With dead ends: 688 [2020-09-24 21:22:19,539 INFO L226 Difference]: Without dead ends: 418 [2020-09-24 21:22:19,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2020-09-24 21:22:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-09-24 21:22:19,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 359. [2020-09-24 21:22:19,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-24 21:22:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 386 transitions. [2020-09-24 21:22:19,601 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 386 transitions. Word has length 186 [2020-09-24 21:22:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:19,602 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 386 transitions. [2020-09-24 21:22:19,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:22:19,602 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 386 transitions. [2020-09-24 21:22:19,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 21:22:19,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:19,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:22:19,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:22:19,605 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:19,606 INFO L82 PathProgramCache]: Analyzing trace with hash -135374382, now seen corresponding path program 1 times [2020-09-24 21:22:19,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:19,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841430765] [2020-09-24 21:22:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:19,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:19,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:22,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:22,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 21:22:22,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:22:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2715 [2020-09-24 21:22:22,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:22:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:22:22,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-24 21:22:22,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:22,784 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:22,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:22,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:23,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-24 21:22:23,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:22:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:23,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:23,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:23,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:23,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:23,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:23,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:23,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:23,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:22:23,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:23,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:23,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:23,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:23,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 21:22:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:22:23,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:23,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:22:23,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 21:22:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:22:23,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:22:23,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 21:22:23,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:22:23,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:22:23,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:22:23,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:22:23,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:22:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:22:23,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:22:23,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:22:23,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:22:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:23,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:23,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:22:23,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:23,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 21:22:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:23,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:23,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:22:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:23,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 21:22:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:23,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:22:23,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:23,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:23,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:23,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 21:22:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:23,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:23,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:23,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:23,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:23,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:23,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:23,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:22:23,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:22:23,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841430765] [2020-09-24 21:22:23,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:23,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:22:23,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583147971] [2020-09-24 21:22:23,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:22:23,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:23,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:22:23,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:22:23,471 INFO L87 Difference]: Start difference. First operand 359 states and 386 transitions. Second operand 11 states. [2020-09-24 21:22:23,987 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:25,830 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:26,164 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:22:26,522 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:22:26,897 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:22:27,223 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:22:27,561 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:27,880 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:22:28,341 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:22:29,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:29,723 INFO L93 Difference]: Finished difference Result 1022 states and 1257 transitions. [2020-09-24 21:22:29,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 21:22:29,724 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-24 21:22:29,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:29,730 INFO L225 Difference]: With dead ends: 1022 [2020-09-24 21:22:29,731 INFO L226 Difference]: Without dead ends: 773 [2020-09-24 21:22:29,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-24 21:22:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-09-24 21:22:29,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 563. [2020-09-24 21:22:29,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-09-24 21:22:29,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 622 transitions. [2020-09-24 21:22:29,812 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 622 transitions. Word has length 199 [2020-09-24 21:22:29,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:29,813 INFO L479 AbstractCegarLoop]: Abstraction has 563 states and 622 transitions. [2020-09-24 21:22:29,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:22:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 622 transitions. [2020-09-24 21:22:29,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 21:22:29,817 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:29,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:22:29,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:22:29,818 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:29,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:29,818 INFO L82 PathProgramCache]: Analyzing trace with hash -321962154, now seen corresponding path program 1 times [2020-09-24 21:22:29,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:29,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039764010] [2020-09-24 21:22:29,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:29,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:30,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:30,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-24 21:22:30,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:30,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 845 [2020-09-24 21:22:30,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:22:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 21:22:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:22:30,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:30,997 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:30,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:31,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 21:22:31,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:31,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:31,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:31,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:31,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:31,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:31,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:31,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:31,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:31,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:31,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:31,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:22:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:22:31,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:22:31,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:31,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:22:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:22:31,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:31,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:31,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:22:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:22:31,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 21:22:31,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:22:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:22:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:22:31,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:22:31,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:22:31,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:31,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:31,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:22:31,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:22:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:22:31,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:31,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:31,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:22:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:31,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:31,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 21:22:31,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 21:22:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:31,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:31,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 21:22:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:31,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:31,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 21:22:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:31,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:31,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:31,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:31,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:31,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:31,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:31,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:31,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:31,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:31,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:31,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:22:31,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039764010] [2020-09-24 21:22:31,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:31,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:22:31,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24531536] [2020-09-24 21:22:31,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:22:31,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:31,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:22:31,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:22:31,425 INFO L87 Difference]: Start difference. First operand 563 states and 622 transitions. Second operand 11 states. [2020-09-24 21:22:32,896 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:22:33,207 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:22:33,523 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:22:33,855 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:22:34,177 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:22:34,497 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:22:36,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:22:36,033 INFO L93 Difference]: Finished difference Result 1357 states and 1639 transitions. [2020-09-24 21:22:36,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:22:36,033 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2020-09-24 21:22:36,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:22:36,040 INFO L225 Difference]: With dead ends: 1357 [2020-09-24 21:22:36,040 INFO L226 Difference]: Without dead ends: 904 [2020-09-24 21:22:36,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-09-24 21:22:36,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-09-24 21:22:36,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 571. [2020-09-24 21:22:36,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-09-24 21:22:36,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 630 transitions. [2020-09-24 21:22:36,145 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 630 transitions. Word has length 204 [2020-09-24 21:22:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:22:36,146 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 630 transitions. [2020-09-24 21:22:36,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:22:36,146 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 630 transitions. [2020-09-24 21:22:36,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 21:22:36,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:22:36,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:22:36,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:22:36,150 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:22:36,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:22:36,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1295053750, now seen corresponding path program 1 times [2020-09-24 21:22:36,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:22:36,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633919017] [2020-09-24 21:22:36,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:22:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:36,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:36,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:36,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-24 21:22:36,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:36,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686 [2020-09-24 21:22:36,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:36,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:36,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 21:22:36,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:22:36,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,208 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:22:37,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:22:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:22:37,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 21:22:37,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:22:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:37,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:37,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:22:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:37,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:37,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:22:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:37,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:37,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:22:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:37,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:37,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:22:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:22:37,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:37,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:22:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:22:37,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:22:37,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:22:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:22:37,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 21:22:37,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:22:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:22:37,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:22:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:22:37,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 21:22:37,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:22:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:22:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:22:37,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:22:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:22:37,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:22:37,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:22:37,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:22:37,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:22:37,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:22:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:22:37,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:22:37,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 21:22:37,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 21:22:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:37,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:37,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:37,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 21:22:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:37,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:37,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 21:22:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:22:37,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:22:37,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:22:37,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:22:37,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:22:37,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:22:37,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:22:37,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:22:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:22:37,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:22:37,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:22:37,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:22:37,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633919017] [2020-09-24 21:22:37,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:22:37,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:22:37,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380955421] [2020-09-24 21:22:37,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:22:37,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:22:37,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:22:37,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:22:37,666 INFO L87 Difference]: Start difference. First operand 571 states and 630 transitions. Second operand 10 states.