/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=NARROWEST --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_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:56:58,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:56:58,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:56:58,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:56:58,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:56:58,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:56:58,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:56:58,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:56:58,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:56:58,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:56:58,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:56:58,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:56:58,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:56:58,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:56:58,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:56:58,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:56:58,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:56:58,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:56:58,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:56:59,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:56:59,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:56:59,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:56:59,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:56:59,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:56:59,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:56:59,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:56:59,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:56:59,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:56:59,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:56:59,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:56:59,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:56:59,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:56:59,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:56:59,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:56:59,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:56:59,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:56:59,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:56:59,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:56:59,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:56:59,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:56:59,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:56:59,025 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 01:56:59,072 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:56:59,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:56:59,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:56:59,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:56:59,075 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:56:59,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:56:59,075 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:56:59,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:56:59,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:56:59,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:56:59,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:56:59,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:56:59,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:56:59,078 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:56:59,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:56:59,078 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:56:59,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:56:59,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:56:59,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:56:59,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:56:59,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:56:59,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:56:59,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:56:59,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:56:59,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:56:59,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:56:59,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:56:59,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:56:59,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:56:59,081 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:56:59,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:56:59,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:56:59,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:56:59,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:56:59,543 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:56:59,545 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-25 01:56:59,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99a4127c3/786b8b69d75b48bba3b11cd46778f3c1/FLAG40f66d269 [2020-09-25 01:57:00,301 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:57:00,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-09-25 01:57:00,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99a4127c3/786b8b69d75b48bba3b11cd46778f3c1/FLAG40f66d269 [2020-09-25 01:57:00,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99a4127c3/786b8b69d75b48bba3b11cd46778f3c1 [2020-09-25 01:57:00,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:57:00,569 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:57:00,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:57:00,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:57:00,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:57:00,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:57:00" (1/1) ... [2020-09-25 01:57:00,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:00, skipping insertion in model container [2020-09-25 01:57:00,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:57:00" (1/1) ... [2020-09-25 01:57:00,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:57:00,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:57:01,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:57:01,043 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:57:01,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:57:01,270 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:57:01,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01 WrapperNode [2020-09-25 01:57:01,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:57:01,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:57:01,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:57:01,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:57:01,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01" (1/1) ... [2020-09-25 01:57:01,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01" (1/1) ... [2020-09-25 01:57:01,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01" (1/1) ... [2020-09-25 01:57:01,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01" (1/1) ... [2020-09-25 01:57:01,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01" (1/1) ... [2020-09-25 01:57:01,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01" (1/1) ... [2020-09-25 01:57:01,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01" (1/1) ... [2020-09-25 01:57:01,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:57:01,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:57:01,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:57:01,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:57:01,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01" (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 01:57:01,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:57:01,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:57:01,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:57:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:57:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:57:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:57:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:57:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:57:01,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:57:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:57:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:57:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:57:01,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:57:01,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:57:01,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:57:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:57:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:57:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:57:01,496 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:57:01,497 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:57:01,497 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:57:01,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:57:01,498 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:57:01,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:57:01,498 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:57:01,499 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:57:01,499 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:57:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:57:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:57:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:57:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:57:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:57:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:57:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:57:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:57:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:57:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:57:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:57:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:57:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:57:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:57:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:57:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:57:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:57:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:57:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:57:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:57:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:57:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:57:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:57:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:57:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:57:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:57:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:57:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:57:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:57:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:57:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:57:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:57:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:57:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:57:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:57:01,506 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:57:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:57:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:57:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:57:01,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:57:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:57:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:57:01,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:57:01,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:57:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:57:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:57:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:57:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:57:01,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:57:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:57:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:57:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:57:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:57:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:57:01,512 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:57:01,513 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:57:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:57:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:57:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:57:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:57:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:57:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:57:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:57:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:57:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:57:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:57:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:57:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:57:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:57:02,774 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:57:02,774 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:57:02,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:57:02 BoogieIcfgContainer [2020-09-25 01:57:02,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:57:02,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:57:02,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:57:02,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:57:02,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:57:00" (1/3) ... [2020-09-25 01:57:02,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288ab1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:57:02, skipping insertion in model container [2020-09-25 01:57:02,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:01" (2/3) ... [2020-09-25 01:57:02,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288ab1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:57:02, skipping insertion in model container [2020-09-25 01:57:02,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:57:02" (3/3) ... [2020-09-25 01:57:02,793 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2020-09-25 01:57:02,806 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:57:02,818 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:57:02,843 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:57:02,880 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:57:02,880 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:57:02,880 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:57:02,880 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:57:02,880 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:57:02,880 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:57:02,881 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:57:02,881 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:57:02,912 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-25 01:57:02,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:57:02,933 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:02,935 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:02,936 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:02,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:02,972 INFO L82 PathProgramCache]: Analyzing trace with hash -548539878, now seen corresponding path program 1 times [2020-09-25 01:57:02,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:02,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235663443] [2020-09-25 01:57:02,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:03,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:03,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:05,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:05,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:08,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:08,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:08,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:57:08,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:57:08,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 01:57:08,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:08,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:08,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:57:08,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:08,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:57:08,967 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:08,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:09,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-25 01:57:09,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:09,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:09,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:09,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:09,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:09,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:09,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 01:57:09,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:09,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:09,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:57:09,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:09,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:09,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:09,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:09,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:09,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:09,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:09,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:09,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:09,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:09,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:57:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:09,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:09,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:57:09,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:09,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:09,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:09,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:09,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:09,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:57:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:09,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:09,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:09,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:57:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:09,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:09,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:09,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:09,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:09,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:09,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:09,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:09,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:09,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:09,537 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:57:09,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235663443] [2020-09-25 01:57:09,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:09,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:57:09,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29357000] [2020-09-25 01:57:09,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:57:09,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:09,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:57:09,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:57:09,570 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 4 states. [2020-09-25 01:57:11,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:11,074 INFO L93 Difference]: Finished difference Result 505 states and 591 transitions. [2020-09-25 01:57:11,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:57:11,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:57:11,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:11,097 INFO L225 Difference]: With dead ends: 505 [2020-09-25 01:57:11,097 INFO L226 Difference]: Without dead ends: 318 [2020-09-25 01:57:11,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:57:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-25 01:57:11,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 272. [2020-09-25 01:57:11,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-25 01:57:11,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 295 transitions. [2020-09-25 01:57:11,217 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 295 transitions. Word has length 160 [2020-09-25 01:57:11,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:11,218 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 295 transitions. [2020-09-25 01:57:11,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:57:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 295 transitions. [2020-09-25 01:57:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:57:11,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:11,227 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:11,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:57:11,227 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:11,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:11,228 INFO L82 PathProgramCache]: Analyzing trace with hash -2128164298, now seen corresponding path program 1 times [2020-09-25 01:57:11,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:11,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823693769] [2020-09-25 01:57:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:11,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:11,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:13,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:14,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:57:16,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:57:16,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 01:57:16,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:57:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:57:16,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,657 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:16,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:16,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 01:57:16,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:16,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:16,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:16,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:16,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:16,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:16,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:16,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:16,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:16,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:16,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:16,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:16,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:16,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:16,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:16,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:57:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:16,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:16,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:57:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:16,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:16,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:16,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:57:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:16,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:16,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:16,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:57:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:16,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:16,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:16,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:16,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:16,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:16,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:16,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:16,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:16,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:16,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:57:16,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823693769] [2020-09-25 01:57:16,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:16,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:57:16,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990804884] [2020-09-25 01:57:16,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:57:16,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:16,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:57:16,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:57:16,900 INFO L87 Difference]: Start difference. First operand 272 states and 295 transitions. Second operand 5 states. [2020-09-25 01:57:17,502 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:18,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:18,505 INFO L93 Difference]: Finished difference Result 430 states and 483 transitions. [2020-09-25 01:57:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:57:18,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:57:18,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:18,511 INFO L225 Difference]: With dead ends: 430 [2020-09-25 01:57:18,511 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 01:57:18,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:57:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 01:57:18,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 262. [2020-09-25 01:57:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 01:57:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 282 transitions. [2020-09-25 01:57:18,566 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 282 transitions. Word has length 161 [2020-09-25 01:57:18,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:18,566 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 282 transitions. [2020-09-25 01:57:18,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:57:18,566 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 282 transitions. [2020-09-25 01:57:18,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 01:57:18,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:18,570 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:18,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:57:18,570 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:18,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:18,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1816762298, now seen corresponding path program 1 times [2020-09-25 01:57:18,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:18,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324630482] [2020-09-25 01:57:18,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:18,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:18,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:19,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:20,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:23,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:23,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 01:57:23,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:57:23,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 01:57:23,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:23,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:23,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 01:57:23,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 01:57:23,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,100 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:24,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:24,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 01:57:24,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:24,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:24,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:24,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:24,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:24,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:24,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:24,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:24,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:57:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:24,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:24,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:57:24,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:57:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:24,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:57:24,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:57:24,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:24,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 01:57:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:24,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:24,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 01:57:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:24,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:24,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:24,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:24,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:24,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:24,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:57:24,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324630482] [2020-09-25 01:57:24,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:24,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:57:24,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721372832] [2020-09-25 01:57:24,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:57:24,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:24,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:57:24,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:57:24,381 INFO L87 Difference]: Start difference. First operand 262 states and 282 transitions. Second operand 6 states. [2020-09-25 01:57:24,889 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:57:26,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:26,118 INFO L93 Difference]: Finished difference Result 477 states and 548 transitions. [2020-09-25 01:57:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 01:57:26,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 01:57:26,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:26,125 INFO L225 Difference]: With dead ends: 477 [2020-09-25 01:57:26,125 INFO L226 Difference]: Without dead ends: 330 [2020-09-25 01:57:26,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:57:26,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-25 01:57:26,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 262. [2020-09-25 01:57:26,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 01:57:26,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 281 transitions. [2020-09-25 01:57:26,170 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 281 transitions. Word has length 174 [2020-09-25 01:57:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:26,171 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 281 transitions. [2020-09-25 01:57:26,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:57:26,171 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 281 transitions. [2020-09-25 01:57:26,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 01:57:26,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:26,174 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:26,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:57:26,175 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:26,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:26,175 INFO L82 PathProgramCache]: Analyzing trace with hash -113759087, now seen corresponding path program 1 times [2020-09-25 01:57:26,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:26,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253088551] [2020-09-25 01:57:26,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:26,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:26,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:26,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:27,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:28,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:30,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:30,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 01:57:31,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 01:57:31,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 01:57:31,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:57:31,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-25 01:57:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:57:31,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:31,575 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:31,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:31,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 01:57:31,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:31,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:31,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:31,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:31,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:31,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:31,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:31,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:31,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:31,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:31,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:31,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:31,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:31,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:31,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:31,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:31,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:57:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:31,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:31,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:31,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:57:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:31,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:31,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:31,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:31,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:31,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:31,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:57:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:57:31,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:57:31,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:57:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 01:57:31,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:57:31,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:31,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:57:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:57:31,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:57:31,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:57:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:57:31,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:57:31,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:31,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:57:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:31,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:31,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:31,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:31,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:57:31,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:31,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 01:57:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:31,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:31,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:31,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 01:57:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:31,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:31,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:31,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:31,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:31,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:31,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:32,001 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:57:32,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253088551] [2020-09-25 01:57:32,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:32,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:57:32,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688298046] [2020-09-25 01:57:32,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:57:32,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:32,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:57:32,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:57:32,004 INFO L87 Difference]: Start difference. First operand 262 states and 281 transitions. Second operand 8 states. [2020-09-25 01:57:32,804 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:35,034 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:35,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:35,967 INFO L93 Difference]: Finished difference Result 666 states and 793 transitions. [2020-09-25 01:57:35,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 01:57:35,968 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-09-25 01:57:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:35,975 INFO L225 Difference]: With dead ends: 666 [2020-09-25 01:57:35,975 INFO L226 Difference]: Without dead ends: 519 [2020-09-25 01:57:35,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-09-25 01:57:35,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-09-25 01:57:36,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 381. [2020-09-25 01:57:36,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-25 01:57:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 412 transitions. [2020-09-25 01:57:36,046 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 412 transitions. Word has length 187 [2020-09-25 01:57:36,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:36,047 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 412 transitions. [2020-09-25 01:57:36,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:57:36,047 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 412 transitions. [2020-09-25 01:57:36,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 01:57:36,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:36,051 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:57:36,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:57:36,052 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:36,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:36,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2080657374, now seen corresponding path program 1 times [2020-09-25 01:57:36,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:36,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1054625756] [2020-09-25 01:57:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:37,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:40,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 01:57:41,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:57:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 01:57:41,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:57:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-25 01:57:41,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 01:57:41,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,450 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:41,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:41,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 01:57:41,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:41,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:41,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:41,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:41,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:41,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:41,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:41,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:41,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:41,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:41,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:57:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:41,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:41,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:57:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:41,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:41,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:41,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:57:41,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:41,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:57:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 01:57:41,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:57:41,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 01:57:41,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:57:41,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:57:41,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:57:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:57:41,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:57:41,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 01:57:41,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:57:41,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:57:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:57:41,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 01:57:41,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 01:57:41,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:57:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:57:41,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:41,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:41,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:57:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:41,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:41,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:57:41,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 01:57:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:41,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:41,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:41,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 01:57:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:41,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:41,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:41,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:41,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:41,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:57:41,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:41,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:41,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:41,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:41,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 01:57:41,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1054625756] [2020-09-25 01:57:41,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:41,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:57:41,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527259136] [2020-09-25 01:57:41,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:57:41,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:42,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:57:42,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:57:42,000 INFO L87 Difference]: Start difference. First operand 381 states and 412 transitions. Second operand 11 states. [2020-09-25 01:57:42,599 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:57:43,611 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:43,932 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:57:44,961 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:57:45,333 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:45,714 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:46,475 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:46,798 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:57:47,128 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:48,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:48,020 INFO L93 Difference]: Finished difference Result 784 states and 920 transitions. [2020-09-25 01:57:48,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 01:57:48,022 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-09-25 01:57:48,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:48,029 INFO L225 Difference]: With dead ends: 784 [2020-09-25 01:57:48,029 INFO L226 Difference]: Without dead ends: 518 [2020-09-25 01:57:48,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-09-25 01:57:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-09-25 01:57:48,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 380. [2020-09-25 01:57:48,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-25 01:57:48,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 409 transitions. [2020-09-25 01:57:48,102 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 409 transitions. Word has length 211 [2020-09-25 01:57:48,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:48,103 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 409 transitions. [2020-09-25 01:57:48,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 01:57:48,103 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 409 transitions. [2020-09-25 01:57:48,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 01:57:48,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:48,106 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:57:48,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:57:48,107 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:48,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:48,107 INFO L82 PathProgramCache]: Analyzing trace with hash -841990399, now seen corresponding path program 1 times [2020-09-25 01:57:48,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:48,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63397454] [2020-09-25 01:57:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat