/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:14:27,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:14:27,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:14:27,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:14:27,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:14:27,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:14:27,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:14:27,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:14:27,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:14:27,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:14:27,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:14:27,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:14:27,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:14:27,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:14:27,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:14:27,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:14:27,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:14:27,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:14:27,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:14:27,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:14:27,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:14:27,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:14:27,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:14:27,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:14:27,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:14:27,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:14:27,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:14:27,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:14:27,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:14:27,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:14:27,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:14:27,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:14:27,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:14:27,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:14:27,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:14:27,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:14:27,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:14:27,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:14:27,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:14:27,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:14:27,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:14:27,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:14:27,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:14:27,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:14:27,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:14:27,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:14:27,440 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:14:27,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:14:27,441 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:14:27,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:14:27,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:14:27,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:14:27,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:14:27,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:14:27,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:14:27,442 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:14:27,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:14:27,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:14:27,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:14:27,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:14:27,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:14:27,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:14:27,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:14:27,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:14:27,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:14:27,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:14:27,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:14:27,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:14:27,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:14:27,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:14:27,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:14:27,445 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:14:27,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:14:27,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:14:27,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:14:27,962 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:14:27,964 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:14:27,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-25 13:14:28,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7086f1601/b425d05c975c48008a0b7046b46dff6d/FLAGd533cae84 [2020-09-25 13:14:28,681 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:14:28,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product34.cil.c [2020-09-25 13:14:28,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7086f1601/b425d05c975c48008a0b7046b46dff6d/FLAGd533cae84 [2020-09-25 13:14:28,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7086f1601/b425d05c975c48008a0b7046b46dff6d [2020-09-25 13:14:28,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:14:28,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:14:28,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:14:28,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:14:28,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:14:28,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:14:28" (1/1) ... [2020-09-25 13:14:28,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:28, skipping insertion in model container [2020-09-25 13:14:28,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:14:28" (1/1) ... [2020-09-25 13:14:29,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:14:29,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:14:29,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:14:29,602 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:14:29,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:14:29,766 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:14:29,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29 WrapperNode [2020-09-25 13:14:29,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:14:29,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:14:29,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:14:29,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:14:29,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29" (1/1) ... [2020-09-25 13:14:29,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29" (1/1) ... [2020-09-25 13:14:29,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29" (1/1) ... [2020-09-25 13:14:29,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29" (1/1) ... [2020-09-25 13:14:29,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29" (1/1) ... [2020-09-25 13:14:29,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29" (1/1) ... [2020-09-25 13:14:29,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29" (1/1) ... [2020-09-25 13:14:29,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:14:29,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:14:29,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:14:29,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:14:29,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:14:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:14:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:14:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:14:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:14:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:14:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:14:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:14:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:14:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:14:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:14:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:14:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:14:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:14:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:14:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:14:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:14:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:14:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:14:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:14:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:14:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:14:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:14:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 13:14:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:14:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:14:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:14:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:14:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:14:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:14:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:14:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 13:14:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:14:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:14:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:14:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:14:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:14:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:14:29,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:14:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:14:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:14:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:14:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:14:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:14:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:14:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 13:14:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:14:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:14:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:14:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:14:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:14:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:14:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:14:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:14:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:14:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:14:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:14:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:14:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:14:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:14:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:14:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:14:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:14:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:14:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 13:14:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:14:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:14:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:14:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:14:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 13:14:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:14:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:14:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:14:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:14:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:14:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:14:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:14:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:14:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:14:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:14:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:14:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:14:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:14:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:14:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:14:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:14:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:14:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:14:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:14:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:14:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:14:31,326 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:14:31,327 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:14:31,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:14:31 BoogieIcfgContainer [2020-09-25 13:14:31,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:14:31,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:14:31,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:14:31,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:14:31,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:14:28" (1/3) ... [2020-09-25 13:14:31,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b19f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:14:31, skipping insertion in model container [2020-09-25 13:14:31,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:14:29" (2/3) ... [2020-09-25 13:14:31,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b19f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:14:31, skipping insertion in model container [2020-09-25 13:14:31,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:14:31" (3/3) ... [2020-09-25 13:14:31,344 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product34.cil.c [2020-09-25 13:14:31,356 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:14:31,368 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:14:31,391 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:14:31,422 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:14:31,422 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:14:31,423 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:14:31,423 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:14:31,423 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:14:31,423 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:14:31,423 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:14:31,423 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:14:31,451 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-09-25 13:14:31,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:14:31,467 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:31,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:14:31,469 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:31,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:31,476 INFO L82 PathProgramCache]: Analyzing trace with hash -769806534, now seen corresponding path program 1 times [2020-09-25 13:14:31,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:31,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363176010] [2020-09-25 13:14:31,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:32,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:32,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:33,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:34,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:36,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:36,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:14:36,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:36,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 13:14:36,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:36,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:14:36,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:14:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 13:14:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:14:37,596 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:37,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:37,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:37,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:37,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:37,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:37,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 13:14:37,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:37,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:37,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:37,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:37,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:14:37,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:37,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:37,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:37,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:37,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:37,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:37,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:37,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:37,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:37,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:37,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:37,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:38,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:38,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:38,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:38,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:38,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:38,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:38,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:38,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:38,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:38,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:38,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:38,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:38,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:38,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:38,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:38,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:38,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:38,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:38,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:38,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:38,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:38,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:38,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:38,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:38,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:38,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:38,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:38,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:38,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:14:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:38,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:38,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:38,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:38,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:38,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:38,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:38,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:38,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:38,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:38,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:38,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:38,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:14:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:38,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:38,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:38,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:38,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:38,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:38,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:38,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:38,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:38,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:38,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:38,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:38,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:38,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363176010] [2020-09-25 13:14:38,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:38,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 13:14:38,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698297244] [2020-09-25 13:14:38,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 13:14:38,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:38,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 13:14:38,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 13:14:38,104 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 4 states. [2020-09-25 13:14:38,729 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:39,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:39,718 INFO L93 Difference]: Finished difference Result 428 states and 511 transitions. [2020-09-25 13:14:39,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:14:39,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 13:14:39,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:39,740 INFO L225 Difference]: With dead ends: 428 [2020-09-25 13:14:39,740 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 13:14:39,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:14:39,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 13:14:39,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 231. [2020-09-25 13:14:39,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-09-25 13:14:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-09-25 13:14:39,849 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 142 [2020-09-25 13:14:39,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:39,850 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-09-25 13:14:39,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 13:14:39,850 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-09-25 13:14:39,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 13:14:39,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:39,856 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] [2020-09-25 13:14:39,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:14:39,857 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:39,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:39,857 INFO L82 PathProgramCache]: Analyzing trace with hash -217860291, now seen corresponding path program 1 times [2020-09-25 13:14:39,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:39,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987083855] [2020-09-25 13:14:39,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:39,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:40,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:40,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:43,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:44,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:44,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 13:14:44,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:14:44,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:14:44,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:44,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:14:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:14:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:14:44,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,219 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:45,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:45,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:45,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:45,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:45,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 13:14:45,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:45,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:45,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:45,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:14:45,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:45,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:45,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:45,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:45,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:45,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:45,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:45,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:45,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:45,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:45,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:45,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:45,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:45,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:45,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:45,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:45,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:45,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:45,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:45,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:45,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:45,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:14:45,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:45,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:45,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:45,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:45,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:45,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:45,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:45,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:45,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:45,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:45,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:45,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:45,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:14:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:45,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:45,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:14:45,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:14:45,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:45,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:14:45,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:14:45,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:14:45,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:45,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:45,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:45,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:45,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:45,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:45,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:14:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:45,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:45,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:45,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:45,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:45,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:45,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:45,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:45,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:14:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:45,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:45,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:45,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:45,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:45,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:45,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:45,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:45,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:45,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:45,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:45,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987083855] [2020-09-25 13:14:45,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:45,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:14:45,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499662625] [2020-09-25 13:14:45,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:14:45,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:45,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:14:45,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:14:45,727 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 7 states. [2020-09-25 13:14:46,257 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:47,776 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:48,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:14:48,786 INFO L93 Difference]: Finished difference Result 542 states and 643 transitions. [2020-09-25 13:14:48,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:14:48,787 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 151 [2020-09-25 13:14:48,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:14:48,795 INFO L225 Difference]: With dead ends: 542 [2020-09-25 13:14:48,795 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 13:14:48,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:14:48,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 13:14:48,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 347. [2020-09-25 13:14:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-09-25 13:14:48,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 384 transitions. [2020-09-25 13:14:48,869 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 384 transitions. Word has length 151 [2020-09-25 13:14:48,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:14:48,870 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 384 transitions. [2020-09-25 13:14:48,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:14:48,870 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 384 transitions. [2020-09-25 13:14:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 13:14:48,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:14:48,875 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] [2020-09-25 13:14:48,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:14:48,875 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:14:48,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:14:48,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1981324929, now seen corresponding path program 1 times [2020-09-25 13:14:48,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:14:48,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493358235] [2020-09-25 13:14:48,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:14:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:48,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:49,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:50,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:53,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:53,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 13:14:53,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:14:53,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 13:14:53,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:53,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 13:14:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:14:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-25 13:14:53,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:14:54,402 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:14:54,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:14:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:14:54,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 13:14:54,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:54,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:14:54,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:14:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:54,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:54,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:54,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:14:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:54,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:54,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:14:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:54,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:14:54,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:54,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:14:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:54,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:14:54,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:14:54,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 13:14:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:14:54,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:14:54,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:14:54,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 13:14:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:14:54,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 13:14:54,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:14:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 13:14:54,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:14:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:14:54,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:14:54,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:54,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:54,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:14:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:14:54,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:14:54,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:54,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:14:54,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:14:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:14:54,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:54,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:54,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:54,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 13:14:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:54,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:14:54,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:14:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:14:54,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:14:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:54,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 13:14:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:14:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:14:54,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:14:54,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:14:54,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:14:54,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:14:54,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:14:54,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:14:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:14:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:14:54,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:14:54,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:14:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:14:55,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493358235] [2020-09-25 13:14:55,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:14:55,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:14:55,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262957114] [2020-09-25 13:14:55,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:14:55,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:14:55,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:14:55,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:14:55,013 INFO L87 Difference]: Start difference. First operand 347 states and 384 transitions. Second operand 10 states. [2020-09-25 13:14:55,632 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:57,144 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:57,444 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:57,774 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:58,092 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:14:58,386 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:14:58,953 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:14:59,248 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:15:00,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:00,420 INFO L93 Difference]: Finished difference Result 981 states and 1242 transitions. [2020-09-25 13:15:00,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 13:15:00,423 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2020-09-25 13:15:00,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:00,431 INFO L225 Difference]: With dead ends: 981 [2020-09-25 13:15:00,431 INFO L226 Difference]: Without dead ends: 744 [2020-09-25 13:15:00,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-09-25 13:15:00,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2020-09-25 13:15:00,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 518. [2020-09-25 13:15:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-09-25 13:15:00,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 591 transitions. [2020-09-25 13:15:00,522 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 591 transitions. Word has length 188 [2020-09-25 13:15:00,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:00,523 INFO L479 AbstractCegarLoop]: Abstraction has 518 states and 591 transitions. [2020-09-25 13:15:00,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:15:00,523 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 591 transitions. [2020-09-25 13:15:00,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 13:15:00,527 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:00,527 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] [2020-09-25 13:15:00,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:15:00,527 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:00,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:00,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1781660386, now seen corresponding path program 1 times [2020-09-25 13:15:00,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:00,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955073695] [2020-09-25 13:15:00,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:00,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:00,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:01,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:02,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:05,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:05,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 13:15:05,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:15:05,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 13:15:05,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:05,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:15:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:15:05,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 13:15:05,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:05,901 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:15:05,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:15:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:05,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:15:06,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 13:15:06,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:15:06,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:15:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:06,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:06,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:06,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:15:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:06,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:06,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:06,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:15:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:06,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:15:06,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:15:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:15:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:06,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:06,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 13:15:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:15:06,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:15:06,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:15:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:15:06,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:06,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:15:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:15:06,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:15:06,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:15:06,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:15:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 13:15:06,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:15:06,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 13:15:06,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 13:15:06,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:15:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 13:15:06,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:15:06,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:15:06,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:15:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:15:06,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:15:06,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 13:15:06,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 13:15:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:15:06,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:06,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:15:06,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:15:06,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:15:06,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:15:06,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 13:15:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:06,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:15:06,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:06,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 13:15:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:06,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:06,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:15:06,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:15:06,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:15:06,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:15:06,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:15:06,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:15:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:15:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:15:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:15:06,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:15:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:15:06,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955073695] [2020-09-25 13:15:06,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:15:06,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 13:15:06,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363637121] [2020-09-25 13:15:06,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:15:06,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:15:06,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:15:06,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:15:06,420 INFO L87 Difference]: Start difference. First operand 518 states and 591 transitions. Second operand 10 states. [2020-09-25 13:15:07,052 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:07,808 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:09,233 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:15:13,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:15:13,078 INFO L93 Difference]: Finished difference Result 1505 states and 1988 transitions. [2020-09-25 13:15:13,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 13:15:13,078 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 193 [2020-09-25 13:15:13,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:15:13,093 INFO L225 Difference]: With dead ends: 1505 [2020-09-25 13:15:13,093 INFO L226 Difference]: Without dead ends: 1257 [2020-09-25 13:15:13,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=244, Invalid=946, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 13:15:13,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2020-09-25 13:15:13,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 826. [2020-09-25 13:15:13,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2020-09-25 13:15:13,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 977 transitions. [2020-09-25 13:15:13,297 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 977 transitions. Word has length 193 [2020-09-25 13:15:13,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:15:13,298 INFO L479 AbstractCegarLoop]: Abstraction has 826 states and 977 transitions. [2020-09-25 13:15:13,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:15:13,298 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 977 transitions. [2020-09-25 13:15:13,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 13:15:13,302 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:15:13,303 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] [2020-09-25 13:15:13,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:15:13,303 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:15:13,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:15:13,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1536754657, now seen corresponding path program 1 times [2020-09-25 13:15:13,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:15:13,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166264103] [2020-09-25 13:15:13,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:15:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:15:13,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:13,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:13,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:14,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:15:16,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking...