/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:42:26,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:42:26,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:42:26,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:42:26,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:42:26,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:42:26,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:42:26,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:42:26,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:42:26,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:42:26,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:42:26,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:42:26,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:42:26,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:42:26,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:42:26,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:42:26,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:42:26,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:42:26,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:42:26,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:42:26,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:42:26,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:42:26,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:42:26,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:42:26,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:42:26,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:42:26,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:42:26,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:42:26,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:42:26,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:42:26,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:42:26,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:42:26,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:42:26,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:42:26,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:42:26,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:42:26,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:42:26,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:42:26,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:42:26,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:42:26,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:42:26,963 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 [2020-10-28 16:42:27,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:42:27,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:42:27,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:42:27,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:42:27,019 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:42:27,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:42:27,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:42:27,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:42:27,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:42:27,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:42:27,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:42:27,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:42:27,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:42:27,027 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:42:27,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:42:27,027 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:42:27,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:42:27,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:42:27,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:42:27,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:42:27,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:42:27,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:42:27,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:42:27,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:42:27,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:42:27,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:42:27,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:42:27,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:42:27,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:42:27,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:42:27,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:42:27,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:42:27,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:42:27,423 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:42:27,424 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:42:27,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-28 16:42:27,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df1b2e0f6/e1890d12713141fa851ac5c472ddef3c/FLAG9cac61848 [2020-10-28 16:42:28,204 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:42:28,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-28 16:42:28,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df1b2e0f6/e1890d12713141fa851ac5c472ddef3c/FLAG9cac61848 [2020-10-28 16:42:28,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df1b2e0f6/e1890d12713141fa851ac5c472ddef3c [2020-10-28 16:42:28,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:42:28,538 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:42:28,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:42:28,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:42:28,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:42:28,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:42:28" (1/1) ... [2020-10-28 16:42:28,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a525dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:28, skipping insertion in model container [2020-10-28 16:42:28,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:42:28" (1/1) ... [2020-10-28 16:42:28,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:42:28,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:42:29,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:42:29,100 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:42:29,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:42:29,344 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:42:29,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29 WrapperNode [2020-10-28 16:42:29,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:42:29,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:42:29,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:42:29,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:42:29,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29" (1/1) ... [2020-10-28 16:42:29,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29" (1/1) ... [2020-10-28 16:42:29,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29" (1/1) ... [2020-10-28 16:42:29,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29" (1/1) ... [2020-10-28 16:42:29,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29" (1/1) ... [2020-10-28 16:42:29,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29" (1/1) ... [2020-10-28 16:42:29,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29" (1/1) ... [2020-10-28 16:42:29,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:42:29,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:42:29,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:42:29,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:42:29,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:42:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:42:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:42:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:42:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:42:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:42:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:42:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:42:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:42:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:42:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:42:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:42:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-28 16:42:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-28 16:42:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:42:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:42:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:42:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:42:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:42:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:42:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-28 16:42:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-28 16:42:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-28 16:42:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:42:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:42:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:42:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:42:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:42:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:42:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-28 16:42:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-28 16:42:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:42:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:42:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:42:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:42:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:42:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:42:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:42:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:42:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:42:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:42:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:42:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:42:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:42:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:42:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:42:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:42:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:42:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:42:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:42:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:42:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:42:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:42:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:42:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:42:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:42:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-28 16:42:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:42:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:42:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:42:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:42:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:42:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:42:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-28 16:42:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-28 16:42:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:42:29,621 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:42:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:42:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:42:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:42:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:42:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:42:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-28 16:42:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-28 16:42:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-28 16:42:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-28 16:42:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:42:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:42:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:42:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:42:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:42:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:42:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:42:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:42:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:42:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:42:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:42:31,128 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:42:31,128 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:42:31,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:42:31 BoogieIcfgContainer [2020-10-28 16:42:31,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:42:31,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:42:31,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:42:31,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:42:31,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:42:28" (1/3) ... [2020-10-28 16:42:31,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e40284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:42:31, skipping insertion in model container [2020-10-28 16:42:31,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:42:29" (2/3) ... [2020-10-28 16:42:31,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e40284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:42:31, skipping insertion in model container [2020-10-28 16:42:31,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:42:31" (3/3) ... [2020-10-28 16:42:31,139 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-10-28 16:42:31,151 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:42:31,156 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:42:31,169 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:42:31,196 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:42:31,196 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:42:31,196 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:42:31,197 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:42:31,197 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:42:31,197 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:42:31,197 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:42:31,197 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:42:31,219 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2020-10-28 16:42:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-28 16:42:31,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:31,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:42:31,231 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:42:31,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:31,237 INFO L82 PathProgramCache]: Analyzing trace with hash -774975722, now seen corresponding path program 1 times [2020-10-28 16:42:31,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:31,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849336798] [2020-10-28 16:42:31,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:31,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:31,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:32,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:33,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:34,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:36,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:36,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 16:42:36,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:42:36,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 16:42:36,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:36,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:36,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:36,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:42:36,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:36,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 16:42:37,216 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:37,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:37,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 16:42:37,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:37,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:37,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:37,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:37,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:37,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:37,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:37,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:37,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:37,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:37,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:37,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:37,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:37,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:37,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:37,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:37,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:42:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:37,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:37,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:37,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:37,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:42:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:37,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:37,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:37,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:37,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:37,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:37,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:37,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:37,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:37,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:37,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:37,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:37,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849336798] [2020-10-28 16:42:37,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:37,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:42:37,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72730582] [2020-10-28 16:42:37,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:42:37,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:37,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:42:37,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:42:37,359 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 3 states. [2020-10-28 16:42:39,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:39,898 INFO L93 Difference]: Finished difference Result 348 states and 456 transitions. [2020-10-28 16:42:39,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:42:39,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-28 16:42:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:39,915 INFO L225 Difference]: With dead ends: 348 [2020-10-28 16:42:39,915 INFO L226 Difference]: Without dead ends: 186 [2020-10-28 16:42:39,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:42:39,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-28 16:42:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 150. [2020-10-28 16:42:40,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-28 16:42:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 179 transitions. [2020-10-28 16:42:40,035 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 179 transitions. Word has length 47 [2020-10-28 16:42:40,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:40,036 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 179 transitions. [2020-10-28 16:42:40,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:42:40,036 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 179 transitions. [2020-10-28 16:42:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 16:42:40,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:40,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:42:40,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:42:40,041 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:42:40,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:40,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1961125580, now seen corresponding path program 1 times [2020-10-28 16:42:40,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:40,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422747949] [2020-10-28 16:42:40,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:40,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:40,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:40,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:42,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:45,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:45,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 16:42:45,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:42:45,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-28 16:42:45,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:45,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:42:45,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:42:45,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:45,876 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:45,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:45,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:45,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:45,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:45,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:45,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 16:42:45,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:45,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:45,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:45,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:45,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:45,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:45,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:45,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:45,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:45,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:45,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:45,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:45,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:45,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:45,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:45,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:45,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:45,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:45,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:45,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:45,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:45,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:45,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:45,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:45,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:45,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:45,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:45,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:45,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:45,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:45,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:45,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:45,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:45,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:45,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:45,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:45,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:45,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:45,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:45,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:45,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:45,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:45,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:45,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:45,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:42:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:45,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:45,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:45,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:45,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:45,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:42:45,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:45,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:45,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:45,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:45,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:42:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:46,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:46,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:46,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:46,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:46,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:46,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:46,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:46,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:46,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:46,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422747949] [2020-10-28 16:42:46,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:46,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:42:46,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027223413] [2020-10-28 16:42:46,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:42:46,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:46,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:42:46,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:42:46,026 INFO L87 Difference]: Start difference. First operand 150 states and 179 transitions. Second operand 4 states. [2020-10-28 16:42:47,040 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:42:49,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:49,054 INFO L93 Difference]: Finished difference Result 272 states and 335 transitions. [2020-10-28 16:42:49,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:42:49,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-28 16:42:49,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:49,064 INFO L225 Difference]: With dead ends: 272 [2020-10-28 16:42:49,065 INFO L226 Difference]: Without dead ends: 170 [2020-10-28 16:42:49,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:42:49,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-28 16:42:49,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 141. [2020-10-28 16:42:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-28 16:42:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 167 transitions. [2020-10-28 16:42:49,164 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 167 transitions. Word has length 48 [2020-10-28 16:42:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:49,164 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 167 transitions. [2020-10-28 16:42:49,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:42:49,164 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 167 transitions. [2020-10-28 16:42:49,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 16:42:49,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:49,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:42:49,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:42:49,176 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:42:49,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:49,177 INFO L82 PathProgramCache]: Analyzing trace with hash -214735971, now seen corresponding path program 1 times [2020-10-28 16:42:49,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:49,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1517715892] [2020-10-28 16:42:49,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:49,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:49,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:50,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:51,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:51,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:51,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 16:42:51,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 16:42:51,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2554 [2020-10-28 16:42:51,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:51,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:42:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:51,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 16:42:51,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:52,458 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:42:52,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:42:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:52,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:52,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:52,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:52,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:52,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 16:42:52,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:52,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:42:52,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:52,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:42:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:52,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:52,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:52,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:52,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:52,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:52,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:52,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:52,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:52,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:52,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:42:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:52,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:52,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:52,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:52,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:52,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:52,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:52,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:52,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:42:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:52,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:52,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:52,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:52,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:52,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:42:52,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:52,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:52,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:52,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:42:52,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:52,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:42:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:52,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:52,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:52,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:42:52,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:52,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:52,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:42:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:42:52,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:42:52,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:42:52,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 16:42:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:52,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:52,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:52,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:52,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:52,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:52,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:52,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:52,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:52,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:52,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:52,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:52,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:42:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:52,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:52,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:42:52,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:42:52,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:42:52,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:42:52,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:42:52,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:42:52,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:42:52,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:42:52,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:42:52,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:42:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:42:52,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1517715892] [2020-10-28 16:42:52,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:42:52,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:42:52,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604460164] [2020-10-28 16:42:52,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:42:52,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:42:52,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:42:52,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:42:52,613 INFO L87 Difference]: Start difference. First operand 141 states and 167 transitions. Second operand 4 states. [2020-10-28 16:42:53,385 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:42:57,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:42:57,186 INFO L93 Difference]: Finished difference Result 418 states and 521 transitions. [2020-10-28 16:42:57,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:42:57,187 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-10-28 16:42:57,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:42:57,193 INFO L225 Difference]: With dead ends: 418 [2020-10-28 16:42:57,193 INFO L226 Difference]: Without dead ends: 301 [2020-10-28 16:42:57,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:42:57,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-28 16:42:57,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 251. [2020-10-28 16:42:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-28 16:42:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 304 transitions. [2020-10-28 16:42:57,288 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 304 transitions. Word has length 52 [2020-10-28 16:42:57,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:42:57,288 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 304 transitions. [2020-10-28 16:42:57,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:42:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 304 transitions. [2020-10-28 16:42:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 16:42:57,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:42:57,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:42:57,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:42:57,291 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:42:57,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:42:57,292 INFO L82 PathProgramCache]: Analyzing trace with hash -3878121, now seen corresponding path program 1 times [2020-10-28 16:42:57,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:42:57,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563476566] [2020-10-28 16:42:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:42:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:42:57,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:57,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:57,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:42:59,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:01,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:01,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 16:43:01,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 16:43:01,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3697 [2020-10-28 16:43:01,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:01,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 16:43:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-28 16:43:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 16:43:01,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:01,880 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:43:01,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:43:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:01,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:01,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:01,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:01,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:01,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 16:43:01,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:01,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:01,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:01,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:01,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:01,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:43:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:01,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:01,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:01,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:01,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:01,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:01,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:01,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:01,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:01,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:43:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:01,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:01,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:01,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:01,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:01,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:01,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:01,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:01,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:01,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:01,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:01,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:01,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:43:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:01,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:01,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:01,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:01,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:01,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:01,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:01,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:01,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:01,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:01,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:43:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:01,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:01,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:01,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:01,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:01,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:43:01,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:01,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:01,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:01,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:01,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:01,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:43:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:01,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:01,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:01,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:43:01,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:01,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:43:01,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:01,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:01,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:01,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:01,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:43:01,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:01,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:43:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:01,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:01,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:01,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:01,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:02,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:43:02,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:02,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:02,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:02,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:02,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:43:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:02,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:02,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:02,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:02,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:02,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:43:02,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:02,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:43:02,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:02,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:02,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:43:02,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563476566] [2020-10-28 16:43:02,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:43:02,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:43:02,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248098720] [2020-10-28 16:43:02,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:43:02,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:43:02,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:43:02,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:43:02,043 INFO L87 Difference]: Start difference. First operand 251 states and 304 transitions. Second operand 8 states. [2020-10-28 16:43:03,013 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:43:04,958 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:43:05,870 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:43:06,729 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:43:08,120 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:43:09,052 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:43:11,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:43:11,264 INFO L93 Difference]: Finished difference Result 683 states and 895 transitions. [2020-10-28 16:43:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:43:11,265 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-10-28 16:43:11,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:43:11,271 INFO L225 Difference]: With dead ends: 683 [2020-10-28 16:43:11,272 INFO L226 Difference]: Without dead ends: 456 [2020-10-28 16:43:11,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:43:11,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-10-28 16:43:11,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 399. [2020-10-28 16:43:11,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-10-28 16:43:11,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 491 transitions. [2020-10-28 16:43:11,400 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 491 transitions. Word has length 58 [2020-10-28 16:43:11,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:43:11,400 INFO L481 AbstractCegarLoop]: Abstraction has 399 states and 491 transitions. [2020-10-28 16:43:11,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:43:11,401 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 491 transitions. [2020-10-28 16:43:11,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-28 16:43:11,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:43:11,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:43:11,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:43:11,403 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:43:11,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:43:11,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1004649391, now seen corresponding path program 1 times [2020-10-28 16:43:11,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:43:11,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689855379] [2020-10-28 16:43:11,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:43:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:11,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:11,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:13,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:13,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 16:43:13,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:43:13,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2390 [2020-10-28 16:43:13,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:13,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:43:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 16:43:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,531 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:43:14,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:43:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:14,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 16:43:14,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:14,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:43:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:14,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:43:14,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:43:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:14,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:43:14,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:14,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:43:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:14,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:14,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:14,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:14,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:43:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:14,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:43:14,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:14,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:14,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:14,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:43:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 16:43:14,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 16:43:14,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:43:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 16:43:14,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:14,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:43:14,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 16:43:14,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:43:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 16:43:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:14,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:43:14,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 16:43:14,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:43:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 16:43:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:43:14,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:43:14,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 16:43:14,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:43:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 16:43:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:43:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:43:14,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:43:14,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 16:43:14,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:43:14,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:43:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:14,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:14,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:14,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:14,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:14,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:43:14,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 16:43:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:14,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:14,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:14,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 16:43:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:14,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:14,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:14,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:14,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:14,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:14,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:14,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:43:14,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689855379] [2020-10-28 16:43:14,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:43:14,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:43:14,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284618742] [2020-10-28 16:43:14,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:43:14,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:43:14,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:43:14,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:43:14,801 INFO L87 Difference]: Start difference. First operand 399 states and 491 transitions. Second operand 7 states. [2020-10-28 16:43:16,669 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:43:17,490 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:43:18,315 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:43:20,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:43:20,290 INFO L93 Difference]: Finished difference Result 849 states and 1115 transitions. [2020-10-28 16:43:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 16:43:20,293 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-28 16:43:20,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:43:20,298 INFO L225 Difference]: With dead ends: 849 [2020-10-28 16:43:20,299 INFO L226 Difference]: Without dead ends: 474 [2020-10-28 16:43:20,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-28 16:43:20,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-10-28 16:43:20,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 410. [2020-10-28 16:43:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-10-28 16:43:20,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 503 transitions. [2020-10-28 16:43:20,439 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 503 transitions. Word has length 85 [2020-10-28 16:43:20,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:43:20,440 INFO L481 AbstractCegarLoop]: Abstraction has 410 states and 503 transitions. [2020-10-28 16:43:20,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:43:20,441 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 503 transitions. [2020-10-28 16:43:20,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-28 16:43:20,443 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:43:20,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:43:20,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:43:20,444 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:43:20,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:43:20,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1077035949, now seen corresponding path program 1 times [2020-10-28 16:43:20,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:43:20,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577605614] [2020-10-28 16:43:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:43:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:20,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:20,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:23,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:23,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 16:43:23,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:43:23,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2539 [2020-10-28 16:43:23,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:23,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:23,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:43:23,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-28 16:43:23,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:43:23,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:23,749 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:43:23,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:43:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:23,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:23,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:23,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:23,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 16:43:23,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:23,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:43:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:23,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:23,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:23,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:23,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:23,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:23,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:23,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:23,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:43:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:23,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:23,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:23,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:43:23,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:23,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:23,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:23,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:23,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:43:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:23,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:23,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:23,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:23,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:23,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:23,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:23,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:23,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:23,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:43:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:23,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:23,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:23,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:23,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:43:23,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:23,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:23,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:43:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:23,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:23,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:23,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 16:43:23,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:23,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 16:43:23,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:23,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:43:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 16:43:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:43:23,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:23,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:23,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:23,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:43:23,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 16:43:23,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:23,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:23,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:43:23,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 16:43:23,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:43:23,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:23,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:23,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:23,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:23,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:43:23,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 16:43:23,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:23,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:23,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:43:23,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 16:43:23,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:43:23,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:24,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:24,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:24,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:24,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:43:24,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:24,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 16:43:24,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:24,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:24,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:43:24,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:24,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 16:43:24,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:24,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:43:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:24,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:24,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:24,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:43:24,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:24,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:24,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:24,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:24,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:24,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:43:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:24,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:24,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:24,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:24,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:24,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:43:24,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:24,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:24,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:24,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:24,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:24,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 16:43:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:24,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:24,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:24,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:24,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:24,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:24,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:24,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:24,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 16:43:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:24,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:24,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:24,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:24,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:24,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:24,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:43:24,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577605614] [2020-10-28 16:43:24,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:43:24,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:43:24,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85264008] [2020-10-28 16:43:24,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:43:24,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:43:24,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:43:24,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:43:24,119 INFO L87 Difference]: Start difference. First operand 410 states and 503 transitions. Second operand 8 states. [2020-10-28 16:43:26,143 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:43:26,962 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:43:27,755 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:43:28,529 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:43:30,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:43:30,428 INFO L93 Difference]: Finished difference Result 864 states and 1106 transitions. [2020-10-28 16:43:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 16:43:30,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-10-28 16:43:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:43:30,433 INFO L225 Difference]: With dead ends: 864 [2020-10-28 16:43:30,434 INFO L226 Difference]: Without dead ends: 478 [2020-10-28 16:43:30,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-28 16:43:30,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-10-28 16:43:30,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 420. [2020-10-28 16:43:30,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2020-10-28 16:43:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 513 transitions. [2020-10-28 16:43:30,544 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 513 transitions. Word has length 85 [2020-10-28 16:43:30,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:43:30,545 INFO L481 AbstractCegarLoop]: Abstraction has 420 states and 513 transitions. [2020-10-28 16:43:30,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:43:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 513 transitions. [2020-10-28 16:43:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-28 16:43:30,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:43:30,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:43:30,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 16:43:30,547 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:43:30,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:43:30,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1334415152, now seen corresponding path program 1 times [2020-10-28 16:43:30,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:43:30,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593817217] [2020-10-28 16:43:30,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:43:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:30,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:30,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:32,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:32,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 16:43:32,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:43:32,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2163 [2020-10-28 16:43:32,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:32,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 16:43:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:32,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-28 16:43:32,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,600 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:43:33,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:43:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:33,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 16:43:33,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:43:33,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:43:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:33,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:33,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:43:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:43:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:33,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:33,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:43:33,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:43:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:33,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:43:33,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:33,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:43:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:33,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:33,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:33,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:43:33,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 16:43:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 16:43:33,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 16:43:33,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 16:43:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:43:33,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:43:33,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:43:33,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:43:33,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:43:33,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:33,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:43:33,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:43:33,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:33,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:43:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:43:33,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:33,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:33,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:43:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:33,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:43:33,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:33,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 16:43:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:33,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:43:33,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:43:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:33,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 16:43:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:33,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:33,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:33,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:33,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:33,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:33,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:33,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:33,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:33,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:33,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:33,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:43:33,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593817217] [2020-10-28 16:43:33,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:43:33,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:43:33,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386532815] [2020-10-28 16:43:33,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:43:33,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:43:33,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:43:33,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:43:33,862 INFO L87 Difference]: Start difference. First operand 420 states and 513 transitions. Second operand 8 states. [2020-10-28 16:43:34,810 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:43:36,512 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:43:37,249 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:43:37,972 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:43:38,699 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:43:39,680 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:43:43,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:43:43,576 INFO L93 Difference]: Finished difference Result 1295 states and 1680 transitions. [2020-10-28 16:43:43,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:43:43,577 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2020-10-28 16:43:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:43:43,585 INFO L225 Difference]: With dead ends: 1295 [2020-10-28 16:43:43,585 INFO L226 Difference]: Without dead ends: 899 [2020-10-28 16:43:43,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:43:43,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2020-10-28 16:43:43,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 788. [2020-10-28 16:43:43,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2020-10-28 16:43:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 969 transitions. [2020-10-28 16:43:43,778 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 969 transitions. Word has length 85 [2020-10-28 16:43:43,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:43:43,779 INFO L481 AbstractCegarLoop]: Abstraction has 788 states and 969 transitions. [2020-10-28 16:43:43,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:43:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 969 transitions. [2020-10-28 16:43:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-28 16:43:43,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:43:43,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:43:43,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 16:43:43,782 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:43:43,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:43:43,782 INFO L82 PathProgramCache]: Analyzing trace with hash 419967796, now seen corresponding path program 1 times [2020-10-28 16:43:43,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:43:43,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153498256] [2020-10-28 16:43:43,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:43:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:43,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:44,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:44,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-28 16:43:44,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:44,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-28 16:43:44,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:44,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 16:43:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 16:43:44,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:44,790 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:43:44,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:43:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:44,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:44,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:44,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:44,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:44,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 16:43:44,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:44,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:44,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:43:44,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:44,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:43:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:44,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:44,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:44,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:44,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:44,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:44,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:44,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:43:44,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:44,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:43:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:44,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:44,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:44,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:44,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:44,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:44,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:44,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:44,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:44,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:44,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:43:44,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:44,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:43:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:44,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:44,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:44,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:44,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:44,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:44,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:44,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:44,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:43:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:44,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:44,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:44,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:43:44,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:44,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:44,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:44,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:44,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:44,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:44,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:43:44,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:44,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 16:43:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:44,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:44,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:44,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:44,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:44,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:44,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:44,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:44,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:44,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:44,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:44,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:44,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:43:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:44,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:44,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:44,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 16:43:44,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:44,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:43:44,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:44,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:44,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:44,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 16:43:44,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 16:43:44,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:44,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:44,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:44,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:44,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:43:44,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:43:44,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:44,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 16:43:44,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:45,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:45,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:45,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:45,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:43:45,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:45,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:43:45,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:45,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 16:43:45,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:45,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:43:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:45,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:45,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:45,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:43:45,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:45,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:43:45,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:45,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 16:43:45,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:43:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:45,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:45,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:45,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:43:45,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:45,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:45,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:45,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:45,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:45,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:45,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:43:45,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:45,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:43:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:45,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:45,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:45,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:45,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:45,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:45,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:45,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:43:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:43:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:43:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:45,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 16:43:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:45,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:45,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:45,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:45,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:45,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:43:45,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:45,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:45,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-28 16:43:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:43:45,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:43:45,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:43:45,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:43:45,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:43:45,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:43:45,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:43:45,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:43:45,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:43:45,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:43:45,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:43:45,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:43:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:43:45,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153498256] [2020-10-28 16:43:45,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:43:45,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:43:45,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285132708] [2020-10-28 16:43:45,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:43:45,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:43:45,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:43:45,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:43:45,129 INFO L87 Difference]: Start difference. First operand 788 states and 969 transitions. Second operand 7 states. [2020-10-28 16:43:46,058 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:43:47,296 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:43:53,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:43:53,123 INFO L93 Difference]: Finished difference Result 2497 states and 3377 transitions. [2020-10-28 16:43:53,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 16:43:53,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-28 16:43:53,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:43:53,137 INFO L225 Difference]: With dead ends: 2497 [2020-10-28 16:43:53,137 INFO L226 Difference]: Without dead ends: 1733 [2020-10-28 16:43:53,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:43:53,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2020-10-28 16:43:53,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1502. [2020-10-28 16:43:53,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-10-28 16:43:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1863 transitions. [2020-10-28 16:43:53,442 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1863 transitions. Word has length 89 [2020-10-28 16:43:53,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:43:53,443 INFO L481 AbstractCegarLoop]: Abstraction has 1502 states and 1863 transitions. [2020-10-28 16:43:53,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:43:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1863 transitions. [2020-10-28 16:43:53,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-28 16:43:53,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:43:53,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:43:53,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 16:43:53,458 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 16:43:53,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:43:53,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1891374598, now seen corresponding path program 1 times [2020-10-28 16:43:53,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:43:53,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886866981] [2020-10-28 16:43:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:43:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:43:53,496 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:43:53,496 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:43:53,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 16:43:53,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:43:53 BoogieIcfgContainer [2020-10-28 16:43:53,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:43:53,546 INFO L168 Benchmark]: Toolchain (without parser) took 85014.15 ms. Allocated memory was 164.6 MB in the beginning and 511.7 MB in the end (delta: 347.1 MB). Free memory was 139.0 MB in the beginning and 229.5 MB in the end (delta: -90.5 MB). Peak memory consumption was 257.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:43:53,547 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 125.8 MB. Free memory is still 99.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:43:53,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.81 ms. Allocated memory is still 164.6 MB. Free memory was 138.4 MB in the beginning and 116.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:43:53,553 INFO L168 Benchmark]: Boogie Preprocessor took 148.93 ms. Allocated memory is still 164.6 MB. Free memory was 116.4 MB in the beginning and 112.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 16:43:53,562 INFO L168 Benchmark]: RCFGBuilder took 1635.00 ms. Allocated memory is still 164.6 MB. Free memory was 112.4 MB in the beginning and 102.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:43:53,562 INFO L168 Benchmark]: TraceAbstraction took 82412.07 ms. Allocated memory was 164.6 MB in the beginning and 511.7 MB in the end (delta: 347.1 MB). Free memory was 102.1 MB in the beginning and 229.5 MB in the end (delta: -127.4 MB). Peak memory consumption was 219.1 MB. Max. memory is 8.0 GB. [2020-10-28 16:43:53,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 125.8 MB. Free memory is still 99.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 802.81 ms. Allocated memory is still 164.6 MB. Free memory was 138.4 MB in the beginning and 116.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.93 ms. Allocated memory is still 164.6 MB. Free memory was 116.4 MB in the beginning and 112.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1635.00 ms. Allocated memory is still 164.6 MB. Free memory was 112.4 MB in the beginning and 102.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 82412.07 ms. Allocated memory was 164.6 MB in the beginning and 511.7 MB in the end (delta: 347.1 MB). Free memory was 102.1 MB in the beginning and 229.5 MB in the end (delta: -127.4 MB). Peak memory consumption was 219.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L161] int pumpRunning = 0; [L162] int systemActive = 1; [L401] int waterLevel = 1; [L402] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L804] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L586] int retValue_acc ; [L587] int tmp ; [L591] FCALL select_helpers() [L592] FCALL select_features() [L593] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L593] RET, EXPR valid_product() [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) [L597] FCALL setup() [L598] CALL runTest() [L580] CALL test() [L86] int splverifierCounter ; [L87] int tmp ; [L88] int tmp___0 ; [L89] int tmp___1 ; [L90] int tmp___2 ; [L93] splverifierCounter = 0 [L95] COND TRUE 1 [L97] COND TRUE splverifierCounter < 4 [L103] tmp = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp) [L107] CALL waterRise() [L419] COND TRUE waterLevel < 2 [L420] waterLevel = waterLevel + 1 [L107] RET waterRise() [L113] tmp___0 = __VERIFIER_nondet_int() [L115] COND TRUE \read(tmp___0) [L117] CALL changeMethaneLevel() [L431] COND FALSE !(\read(methaneLevelCritical)) [L434] methaneLevelCritical = 1 [L117] RET changeMethaneLevel() [L123] tmp___2 = __VERIFIER_nondet_int() [L125] COND TRUE \read(tmp___2) [L140] CALL timeShift() [L169] COND FALSE !(\read(pumpRunning)) [L176] COND TRUE \read(systemActive) [L178] CALL processEnvironment() [L250] int tmp ; [L253] COND FALSE !(\read(pumpRunning)) [L268] CALL processEnvironment__wrappee__lowWaterSensor() [L224] int tmp ; [L227] COND FALSE !(\read(pumpRunning)) [L242] CALL processEnvironment__wrappee__highWaterSensor() [L198] int tmp ; [L201] COND TRUE ! pumpRunning [L203] CALL, EXPR isHighWaterLevel() [L347] int retValue_acc ; [L348] int tmp ; [L349] int tmp___0 ; [L353] CALL, EXPR isHighWaterSensorDry() [L481] int retValue_acc ; [L484] COND FALSE !(waterLevel < 2) [L488] retValue_acc = 0 [L489] return (retValue_acc); [L353] RET, EXPR isHighWaterSensorDry() [L353] tmp = isHighWaterSensorDry() [L355] COND FALSE !(\read(tmp)) [L358] tmp___0 = 1 [L360] retValue_acc = tmp___0 [L361] return (retValue_acc); [L203] RET, EXPR isHighWaterLevel() [L203] tmp = isHighWaterLevel() [L205] COND TRUE \read(tmp) [L207] CALL activatePump() [L278] pumpRunning = 1 [L207] RET activatePump() [L242] RET processEnvironment__wrappee__highWaterSensor() [L268] RET processEnvironment__wrappee__lowWaterSensor() [L178] RET processEnvironment() [L184] CALL __utac_acc__Specification1_spec__1() [L610] int tmp ; [L611] int tmp___0 ; [L615] CALL, EXPR isMethaneLevelCritical() [L440] int retValue_acc ; [L443] retValue_acc = methaneLevelCritical [L444] return (retValue_acc); [L615] RET, EXPR isMethaneLevelCritical() [L615] tmp = isMethaneLevelCritical() [L617] COND TRUE \read(tmp) [L619] CALL, EXPR isPumpRunning() [L302] int retValue_acc ; [L305] retValue_acc = pumpRunning [L306] return (retValue_acc); [L619] RET, EXPR isPumpRunning() [L619] tmp___0 = isPumpRunning() [L621] COND TRUE \read(tmp___0) [L623] CALL __automaton_fail() [L508] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product55.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 263 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 82.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 48.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1107 SDtfs, 1705 SDslu, 906 SDs, 0 SdLazy, 4156 SolverSat, 1027 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 188 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 22.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1502occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 636 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 31.3s InterpolantComputationTime, 642 NumberOfCodeBlocks, 642 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 541 ConstructedInterpolants, 0 QuantifiedInterpolants, 173838 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...