/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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:40:41,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:40:41,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:40:41,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:40:41,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:40:41,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:40:41,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:40:41,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:40:41,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:40:41,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:40:41,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:40:41,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:40:41,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:40:41,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:40:41,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:40:41,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:40:41,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:40:41,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:40:41,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:40:41,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:40:41,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:40:41,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:40:41,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:40:41,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:40:41,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:40:41,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:40:41,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:40:41,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:40:41,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:40:41,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:40:41,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:40:41,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:40:41,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:40:41,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:40:41,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:40:41,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:40:41,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:40:41,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:40:41,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:40:41,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:40:41,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:40:41,917 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 16:40:41,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:40:41,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:40:41,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:40:41,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:40:41,946 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:40:41,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:40:41,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:40:41,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:40:41,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:40:41,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:40:41,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:40:41,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:40:41,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:40:41,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:40:41,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:40:41,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:40:41,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:40:41,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:40:41,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:40:41,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:40:41,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:40:41,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:40:41,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:40:41,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:40:41,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:40:41,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:40:41,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:40:41,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:40:41,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:40:41,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:40:42,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:40:42,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:40:42,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:40:42,358 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:40:42,358 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:40:42,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-10-28 16:40:42,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fae27750/de8ca194cef54f47b52bdd3b2b915daa/FLAG5344add2c [2020-10-28 16:40:43,295 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:40:43,296 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product38.cil.c [2020-10-28 16:40:43,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fae27750/de8ca194cef54f47b52bdd3b2b915daa/FLAG5344add2c [2020-10-28 16:40:43,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fae27750/de8ca194cef54f47b52bdd3b2b915daa [2020-10-28 16:40:43,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:40:43,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:40:43,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:40:43,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:40:43,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:40:43,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:40:43" (1/1) ... [2020-10-28 16:40:43,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3030e777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:43, skipping insertion in model container [2020-10-28 16:40:43,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:40:43" (1/1) ... [2020-10-28 16:40:43,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:40:43,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:40:43,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:40:43,994 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:40:44,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:40:44,144 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:40:44,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44 WrapperNode [2020-10-28 16:40:44,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:40:44,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:40:44,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:40:44,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:40:44,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44" (1/1) ... [2020-10-28 16:40:44,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44" (1/1) ... [2020-10-28 16:40:44,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44" (1/1) ... [2020-10-28 16:40:44,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44" (1/1) ... [2020-10-28 16:40:44,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44" (1/1) ... [2020-10-28 16:40:44,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44" (1/1) ... [2020-10-28 16:40:44,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44" (1/1) ... [2020-10-28 16:40:44,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:40:44,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:40:44,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:40:44,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:40:44,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44" (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 16:40:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:40:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:40:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:40:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:40:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:40:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:40:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:40:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:40:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:40:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:40:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:40:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:40:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:40:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:40:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:40:44,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:40:44,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:40:44,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:40:44,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:40:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:40:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:40:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:40:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-28 16:40:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:40:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:40:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:40:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:40:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:40:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:40:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-28 16:40:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-28 16:40:44,360 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:40:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:40:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:40:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:40:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:40:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:40:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:40:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:40:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-28 16:40:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:40:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:40:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:40:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:40:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:40:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:40:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:40:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:40:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:40:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:40:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:40:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:40:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:40:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:40:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:40:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:40:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:40:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:40:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:40:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:40:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:40:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:40:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:40:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-28 16:40:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:40:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:40:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:40:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:40:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:40:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:40:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:40:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:40:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:40:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:40:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:40:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:40:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:40:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:40:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:40:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:40:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:40:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-28 16:40:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:40:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:40:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-28 16:40:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:40:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:40:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-28 16:40:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-28 16:40:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:40:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:40:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:40:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:40:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:40:45,753 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:40:45,753 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:40:45,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:40:45 BoogieIcfgContainer [2020-10-28 16:40:45,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:40:45,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:40:45,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:40:45,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:40:45,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:40:43" (1/3) ... [2020-10-28 16:40:45,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4706d21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:40:45, skipping insertion in model container [2020-10-28 16:40:45,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:40:44" (2/3) ... [2020-10-28 16:40:45,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4706d21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:40:45, skipping insertion in model container [2020-10-28 16:40:45,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:40:45" (3/3) ... [2020-10-28 16:40:45,769 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2020-10-28 16:40:45,783 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:40:45,789 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:40:45,803 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:40:45,844 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:40:45,845 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:40:45,846 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:40:45,846 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:40:45,846 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:40:45,846 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:40:45,846 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:40:45,847 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:40:45,895 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-10-28 16:40:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-28 16:40:45,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:40:45,906 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 16:40:45,907 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 16:40:45,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:40:45,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1749904471, now seen corresponding path program 1 times [2020-10-28 16:40:45,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:40:45,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920428206] [2020-10-28 16:40:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:40:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:46,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:46,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:46,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:48,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:49,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:51,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:51,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 16:40:51,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:40:51,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-28 16:40:51,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:51,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:40:51,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:51,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 16:40:51,585 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:40:51,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:40:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:51,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:51,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:51,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:51,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:51,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 16:40:51,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:51,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:51,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:51,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:40:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:51,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:51,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:40:51,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:51,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:51,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:51,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:51,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:51,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:40:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:51,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:51,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:51,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:40:51,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:40:51,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:51,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:51,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:51,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:51,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:51,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:40:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:51,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:51,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:51,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:51,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:40:51,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:51,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:51,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:51,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:51,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:40:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:51,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:51,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:51,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:40:51,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:51,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:40:51,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:51,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:51,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:51,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:51,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:51,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:40:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:51,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:51,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:51,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:51,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:51,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:51,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:51,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:51,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:51,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:40:51,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:51,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 16:40:51,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:40:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:51,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:51,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:51,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:51,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:51,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:40:51,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:51,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:51,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:51,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:40:51,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:51,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:51,739 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 16:40:51,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920428206] [2020-10-28 16:40:51,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:40:51,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:40:51,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937032050] [2020-10-28 16:40:51,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:40:51,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:40:51,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:40:51,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:40:51,771 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 3 states. [2020-10-28 16:40:53,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:40:53,192 INFO L93 Difference]: Finished difference Result 301 states and 394 transitions. [2020-10-28 16:40:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:40:53,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-28 16:40:53,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:40:53,218 INFO L225 Difference]: With dead ends: 301 [2020-10-28 16:40:53,218 INFO L226 Difference]: Without dead ends: 161 [2020-10-28 16:40:53,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:40:53,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-28 16:40:53,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 128. [2020-10-28 16:40:53,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-28 16:40:53,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2020-10-28 16:40:53,326 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 47 [2020-10-28 16:40:53,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:40:53,327 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2020-10-28 16:40:53,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:40:53,327 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2020-10-28 16:40:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 16:40:53,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:40:53,331 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 16:40:53,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:40:53,331 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 16:40:53,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:40:53,332 INFO L82 PathProgramCache]: Analyzing trace with hash 693955903, now seen corresponding path program 1 times [2020-10-28 16:40:53,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:40:53,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972866263] [2020-10-28 16:40:53,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:40:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:53,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:53,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:55,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:56,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:58,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:58,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 16:40:58,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:40:58,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 16:40:58,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:58,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:58,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:40:58,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:40:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:40:58,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:40:58,884 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:40:58,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:40:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:58,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:58,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:58,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:58,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:58,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 16:40:58,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:58,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:58,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:58,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:58,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:40:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:58,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:58,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:58,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:40:58,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:58,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:58,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:58,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:58,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:58,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:58,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:58,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:40:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:58,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:58,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:58,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:40:58,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:40:58,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:58,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:58,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:58,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:40:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:58,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:58,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:58,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:58,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:58,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:58,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:58,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:58,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:58,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:40:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:58,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:58,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:58,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:40:58,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:58,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:58,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:58,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:58,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:40:58,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:58,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:58,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:40:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:58,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:58,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:58,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:58,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:58,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:40:58,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:58,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:58,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:58,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:40:58,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:58,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:58,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:40:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:40:58,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:40:58,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:40:58,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:40:58,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:40:59,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:40:59,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:40:59,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:40:59,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:40:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:40:59,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:40:59,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:40:59,014 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 16:40:59,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972866263] [2020-10-28 16:40:59,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:40:59,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:40:59,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889259629] [2020-10-28 16:40:59,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:40:59,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:40:59,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:40:59,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:40:59,025 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 4 states. [2020-10-28 16:40:59,667 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:00,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:00,788 INFO L93 Difference]: Finished difference Result 227 states and 277 transitions. [2020-10-28 16:41:00,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:41:00,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-10-28 16:41:00,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:00,792 INFO L225 Difference]: With dead ends: 227 [2020-10-28 16:41:00,794 INFO L226 Difference]: Without dead ends: 145 [2020-10-28 16:41:00,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:41:00,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-28 16:41:00,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 119. [2020-10-28 16:41:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-28 16:41:00,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2020-10-28 16:41:00,878 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 48 [2020-10-28 16:41:00,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:00,879 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2020-10-28 16:41:00,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:41:00,879 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2020-10-28 16:41:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:41:00,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:00,888 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] [2020-10-28 16:41:00,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:41:00,889 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 16:41:00,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:00,889 INFO L82 PathProgramCache]: Analyzing trace with hash 69055724, now seen corresponding path program 1 times [2020-10-28 16:41:00,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:00,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719693407] [2020-10-28 16:41:00,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:00,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:01,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:01,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:01,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:02,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:02,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 16:41:02,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 16:41:02,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2056 [2020-10-28 16:41:02,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:02,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:41:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:02,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-28 16:41:02,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,371 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:03,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:03,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-28 16:41:03,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:41:03,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:03,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:03,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:03,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:03,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:03,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:03,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:03,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:03,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 16:41:03,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:03,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:03,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:03,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:03,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:03,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:03,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:41:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:03,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:03,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:03,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:03,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:03,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:41:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:03,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:03,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:03,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:03,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:03,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:03,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:03,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:03,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:03,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:03,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:03,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:03,551 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 16:41:03,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719693407] [2020-10-28 16:41:03,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:03,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 16:41:03,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028568269] [2020-10-28 16:41:03,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 16:41:03,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:03,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 16:41:03,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:41:03,555 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 5 states. [2020-10-28 16:41:04,260 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:05,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:05,421 INFO L93 Difference]: Finished difference Result 240 states and 295 transitions. [2020-10-28 16:41:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:41:05,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-10-28 16:41:05,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:05,425 INFO L225 Difference]: With dead ends: 240 [2020-10-28 16:41:05,425 INFO L226 Difference]: Without dead ends: 145 [2020-10-28 16:41:05,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 16:41:05,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-28 16:41:05,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 119. [2020-10-28 16:41:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-28 16:41:05,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-10-28 16:41:05,505 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 53 [2020-10-28 16:41:05,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:05,506 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-10-28 16:41:05,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 16:41:05,506 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-10-28 16:41:05,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-28 16:41:05,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:05,513 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] [2020-10-28 16:41:05,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:41:05,513 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 16:41:05,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:05,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1352519060, now seen corresponding path program 1 times [2020-10-28 16:41:05,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:05,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070191851] [2020-10-28 16:41:05,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:05,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:05,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:05,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:06,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:08,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:09,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:09,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:10,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:10,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 16:41:10,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 16:41:10,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-28 16:41:10,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:10,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 16:41:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-28 16:41:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 16:41:10,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:10,945 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:10,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:10,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:10,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:10,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:10,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 16:41:11,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:11,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:11,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:11,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:11,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:11,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:11,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:11,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:11,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:11,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:11,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:11,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:11,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:11,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:11,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:11,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:11,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:41:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 16:41:11,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:41:11,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 16:41:11,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 16:41:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 16:41:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 16:41:11,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 16:41:11,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 16:41:11,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:41:11,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 16:41:11,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 16:41:11,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:11,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:41:11,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 16:41:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:11,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:11,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:11,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 16:41:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:11,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:11,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:11,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:11,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:11,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:11,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:11,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:11,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:11,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:11,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:11,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:11,225 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 16:41:11,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070191851] [2020-10-28 16:41:11,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:11,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:41:11,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109420911] [2020-10-28 16:41:11,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:41:11,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:11,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:41:11,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:41:11,228 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 7 states. [2020-10-28 16:41:11,844 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:13,423 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:41:14,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:14,340 INFO L93 Difference]: Finished difference Result 339 states and 419 transitions. [2020-10-28 16:41:14,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 16:41:14,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2020-10-28 16:41:14,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:14,345 INFO L225 Difference]: With dead ends: 339 [2020-10-28 16:41:14,345 INFO L226 Difference]: Without dead ends: 244 [2020-10-28 16:41:14,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-28 16:41:14,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-28 16:41:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 199. [2020-10-28 16:41:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-28 16:41:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 226 transitions. [2020-10-28 16:41:14,424 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 226 transitions. Word has length 66 [2020-10-28 16:41:14,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:14,426 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 226 transitions. [2020-10-28 16:41:14,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:41:14,427 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 226 transitions. [2020-10-28 16:41:14,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 16:41:14,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:14,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 16:41:14,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:41:14,430 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 16:41:14,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:14,431 INFO L82 PathProgramCache]: Analyzing trace with hash -67237709, now seen corresponding path program 1 times [2020-10-28 16:41:14,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:14,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482890587] [2020-10-28 16:41:14,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:14,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:14,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:15,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:15,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:15,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:19,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:19,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 16:41:19,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 16:41:19,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 16:41:19,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:19,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:19,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 16:41:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 16:41:19,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 16:41:19,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:19,905 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:19,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:19,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:19,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:19,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:19,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:19,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 16:41:19,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:19,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:19,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:19,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:19,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:19,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:19,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:19,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:19,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:19,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:19,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:19,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:19,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:19,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:19,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:19,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:19,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:19,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:19,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:19,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:19,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:19,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:19,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:19,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:19,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:19,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:19,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:19,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:19,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:19,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:19,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:19,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:19,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:19,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:19,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:19,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:19,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:19,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:19,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:19,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:19,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:19,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:19,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:19,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:19,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:19,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:19,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:19,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:19,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:41:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:19,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 16:41:20,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:41:20,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 16:41:20,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 16:41:20,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 16:41:20,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:41:20,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:20,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:41:20,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:20,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 16:41:20,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 16:41:20,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:20,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:20,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:20,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:20,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:20,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:20,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 16:41:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:20,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:20,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:20,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 16:41:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:20,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:20,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:20,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:20,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:20,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:20,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:20,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:20,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:20,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:20,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:20,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:20,122 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 16:41:20,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482890587] [2020-10-28 16:41:20,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:20,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:41:20,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005795923] [2020-10-28 16:41:20,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:41:20,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:20,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:41:20,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:41:20,126 INFO L87 Difference]: Start difference. First operand 199 states and 226 transitions. Second operand 8 states. [2020-10-28 16:41:21,037 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:22,519 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:22,963 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:23,392 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:23,807 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:24,251 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:25,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:25,321 INFO L93 Difference]: Finished difference Result 246 states and 297 transitions. [2020-10-28 16:41:25,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:41:25,322 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-28 16:41:25,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:25,326 INFO L225 Difference]: With dead ends: 246 [2020-10-28 16:41:25,326 INFO L226 Difference]: Without dead ends: 242 [2020-10-28 16:41:25,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:41:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-28 16:41:25,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 199. [2020-10-28 16:41:25,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-28 16:41:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 225 transitions. [2020-10-28 16:41:25,388 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 225 transitions. Word has length 80 [2020-10-28 16:41:25,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:25,388 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 225 transitions. [2020-10-28 16:41:25,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:41:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 225 transitions. [2020-10-28 16:41:25,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 16:41:25,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:25,390 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] [2020-10-28 16:41:25,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:41:25,390 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 16:41:25,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:25,391 INFO L82 PathProgramCache]: Analyzing trace with hash -694421732, now seen corresponding path program 1 times [2020-10-28 16:41:25,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:25,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480356600] [2020-10-28 16:41:25,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:25,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:25,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:27,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 16:41:27,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:41:27,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1953 [2020-10-28 16:41:27,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:27,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:41:27,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 16:41:27,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:41:27,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:27,835 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:27,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:27,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:27,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:27,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:27,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 16:41:27,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:27,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:27,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:27,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:27,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:27,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:27,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:27,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:27,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:27,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:27,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:27,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:27,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:27,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:27,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:27,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:27,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:27,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:27,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:27,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:27,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:27,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:27,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:27,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:27,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:27,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:27,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:27,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:27,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:27,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:27,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:27,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:27,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:27,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:27,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:27,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:27,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:41:27,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:41:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:27,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:27,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:27,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:41:27,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:27,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 16:41:27,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:27,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:27,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:41:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 16:41:27,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:41:27,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:28,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:41:28,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 16:41:28,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 16:41:28,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 16:41:28,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:41:28,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:28,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 16:41:28,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 16:41:28,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:28,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:28,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:28,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:28,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:28,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:28,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:28,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:28,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:28,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 16:41:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:28,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:28,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:28,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:28,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 16:41:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:28,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:28,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:28,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:28,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:28,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:28,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:28,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:28,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:28,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:28,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:28,233 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 16:41:28,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480356600] [2020-10-28 16:41:28,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:28,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:41:28,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045336492] [2020-10-28 16:41:28,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:41:28,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:28,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:41:28,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:41:28,236 INFO L87 Difference]: Start difference. First operand 199 states and 225 transitions. Second operand 8 states. [2020-10-28 16:41:29,758 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:30,201 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:41:30,622 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:31,009 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:32,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:32,158 INFO L93 Difference]: Finished difference Result 416 states and 498 transitions. [2020-10-28 16:41:32,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 16:41:32,160 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-28 16:41:32,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:32,164 INFO L225 Difference]: With dead ends: 416 [2020-10-28 16:41:32,164 INFO L226 Difference]: Without dead ends: 241 [2020-10-28 16:41:32,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-28 16:41:32,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-28 16:41:32,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 204. [2020-10-28 16:41:32,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-28 16:41:32,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 230 transitions. [2020-10-28 16:41:32,228 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 230 transitions. Word has length 81 [2020-10-28 16:41:32,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:32,230 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 230 transitions. [2020-10-28 16:41:32,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:41:32,230 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 230 transitions. [2020-10-28 16:41:32,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 16:41:32,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:32,231 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] [2020-10-28 16:41:32,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 16:41:32,231 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 16:41:32,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:32,232 INFO L82 PathProgramCache]: Analyzing trace with hash 7178142, now seen corresponding path program 1 times [2020-10-28 16:41:32,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:32,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701855051] [2020-10-28 16:41:32,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:32,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:32,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 16:41:34,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:41:34,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2131 [2020-10-28 16:41:34,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:34,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 16:41:34,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:34,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,769 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:34,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:34,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 16:41:34,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:34,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:34,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:34,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:34,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:34,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:34,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:34,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:34,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:41:34,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:34,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:34,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:34,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:34,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:34,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:34,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:41:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:41:34,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 16:41:34,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:34,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 16:41:34,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:34,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:34,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:34,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:34,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:41:34,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:34,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 16:41:34,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:34,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 16:41:34,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:34,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:35,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:35,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:35,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:35,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 16:41:35,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:35,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 16:41:35,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:35,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:35,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:35,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:35,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:35,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:35,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:41:35,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:35,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 16:41:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:35,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:35,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:35,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:35,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:35,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:35,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:35,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:35,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:35,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:35,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:35,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:35,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 16:41:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:35,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:35,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:35,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:35,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:35,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:35,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:35,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 16:41:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:35,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:35,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:35,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:35,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:35,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:35,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:35,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:35,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:35,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:35,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:35,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:41:35,179 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 16:41:35,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701855051] [2020-10-28 16:41:35,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:35,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:41:35,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312733112] [2020-10-28 16:41:35,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:41:35,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:35,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:41:35,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:41:35,182 INFO L87 Difference]: Start difference. First operand 204 states and 230 transitions. Second operand 7 states. [2020-10-28 16:41:36,867 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:37,287 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:37,680 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:38,732 INFO L93 Difference]: Finished difference Result 425 states and 514 transitions. [2020-10-28 16:41:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 16:41:38,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-10-28 16:41:38,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:38,736 INFO L225 Difference]: With dead ends: 425 [2020-10-28 16:41:38,737 INFO L226 Difference]: Without dead ends: 245 [2020-10-28 16:41:38,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-28 16:41:38,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-10-28 16:41:38,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 208. [2020-10-28 16:41:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-10-28 16:41:38,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 234 transitions. [2020-10-28 16:41:38,798 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 234 transitions. Word has length 81 [2020-10-28 16:41:38,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:38,799 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 234 transitions. [2020-10-28 16:41:38,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:41:38,799 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 234 transitions. [2020-10-28 16:41:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 16:41:38,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:38,800 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] [2020-10-28 16:41:38,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 16:41:38,801 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 16:41:38,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:38,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1732659039, now seen corresponding path program 1 times [2020-10-28 16:41:38,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:38,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844312807] [2020-10-28 16:41:38,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:38,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:39,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:40,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:40,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 16:41:40,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:41:40,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1782 [2020-10-28 16:41:40,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:40,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:40,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 16:41:40,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 16:41:40,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:40,968 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:40,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:40,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 16:41:41,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:41:41,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:41,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:41,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:41,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:41,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:41,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:41,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 16:41:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:41:41,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 16:41:41,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 16:41:41,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:41:41,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:41,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:41,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:41,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:41:41,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:41,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:41,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:41,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:41,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 16:41:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:41,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:41:41,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:41,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:41,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 16:41:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:41,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:41,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:41,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:41,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:41,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:41,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:41,192 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 16:41:41,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844312807] [2020-10-28 16:41:41,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:41,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 16:41:41,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936378791] [2020-10-28 16:41:41,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 16:41:41,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:41,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 16:41:41,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-28 16:41:41,194 INFO L87 Difference]: Start difference. First operand 208 states and 234 transitions. Second operand 8 states. [2020-10-28 16:41:41,841 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:43,528 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-28 16:41:43,987 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:44,423 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:41:44,828 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:45,318 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:41:46,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:46,802 INFO L93 Difference]: Finished difference Result 621 states and 758 transitions. [2020-10-28 16:41:46,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:41:46,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2020-10-28 16:41:46,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:46,809 INFO L225 Difference]: With dead ends: 621 [2020-10-28 16:41:46,809 INFO L226 Difference]: Without dead ends: 437 [2020-10-28 16:41:46,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:41:46,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-10-28 16:41:46,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 370. [2020-10-28 16:41:46,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-28 16:41:46,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 418 transitions. [2020-10-28 16:41:46,904 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 418 transitions. Word has length 81 [2020-10-28 16:41:46,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:46,904 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 418 transitions. [2020-10-28 16:41:46,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 16:41:46,905 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 418 transitions. [2020-10-28 16:41:46,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-28 16:41:46,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:46,906 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 16:41:46,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 16:41:46,907 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 16:41:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:46,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1961562147, now seen corresponding path program 1 times [2020-10-28 16:41:46,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:46,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643936322] [2020-10-28 16:41:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:46,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-28 16:41:47,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-28 16:41:47,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 16:41:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 16:41:47,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,689 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:41:47,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:41:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:47,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 16:41:47,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:41:47,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:41:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:47,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:47,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:47,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:41:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:47,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:47,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:41:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:47,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:47,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:47,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:41:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:41:47,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:47,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:41:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 16:41:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:47,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:47,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:47,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 16:41:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 16:41:47,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:41:47,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 16:41:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 16:41:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 16:41:47,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 16:41:47,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 16:41:47,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 16:41:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 16:41:47,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:41:47,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 16:41:47,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 16:41:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:41:47,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:47,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:41:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 16:41:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:47,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:47,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:41:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:41:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:41:47,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 16:41:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:47,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 16:41:47,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:47,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-28 16:41:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:41:47,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:41:47,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:41:47,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:41:47,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:41:47,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:41:47,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:41:47,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:41:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:41:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:41:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:41:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:41:47,962 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 16:41:47,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643936322] [2020-10-28 16:41:47,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:41:47,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 16:41:47,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720013865] [2020-10-28 16:41:47,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 16:41:47,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:41:47,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 16:41:47,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 16:41:47,964 INFO L87 Difference]: Start difference. First operand 370 states and 418 transitions. Second operand 7 states. [2020-10-28 16:41:48,503 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:49,234 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:41:52,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:41:52,205 INFO L93 Difference]: Finished difference Result 1157 states and 1487 transitions. [2020-10-28 16:41:52,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 16:41:52,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-28 16:41:52,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:41:52,213 INFO L225 Difference]: With dead ends: 1157 [2020-10-28 16:41:52,213 INFO L226 Difference]: Without dead ends: 811 [2020-10-28 16:41:52,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-28 16:41:52,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-10-28 16:41:52,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 690. [2020-10-28 16:41:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-10-28 16:41:52,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 812 transitions. [2020-10-28 16:41:52,358 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 812 transitions. Word has length 85 [2020-10-28 16:41:52,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:41:52,358 INFO L481 AbstractCegarLoop]: Abstraction has 690 states and 812 transitions. [2020-10-28 16:41:52,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 16:41:52,358 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 812 transitions. [2020-10-28 16:41:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-28 16:41:52,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:41:52,361 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 16:41:52,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 16:41:52,361 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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 16:41:52,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:41:52,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1135015689, now seen corresponding path program 1 times [2020-10-28 16:41:52,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:41:52,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287764844] [2020-10-28 16:41:52,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:41:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:41:52,400 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:41:52,400 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:41:52,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 16:41:52,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:41:52 BoogieIcfgContainer [2020-10-28 16:41:52,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:41:52,431 INFO L168 Benchmark]: Toolchain (without parser) took 68900.73 ms. Allocated memory was 161.5 MB in the beginning and 789.6 MB in the end (delta: 628.1 MB). Free memory was 135.1 MB in the beginning and 400.6 MB in the end (delta: -265.5 MB). Peak memory consumption was 363.8 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:52,432 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 161.5 MB. Free memory was 132.5 MB in the beginning and 132.4 MB in the end (delta: 95.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:41:52,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.52 ms. Allocated memory is still 161.5 MB. Free memory was 134.3 MB in the beginning and 113.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:52,433 INFO L168 Benchmark]: Boogie Preprocessor took 88.57 ms. Allocated memory is still 161.5 MB. Free memory was 113.9 MB in the beginning and 110.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:52,434 INFO L168 Benchmark]: RCFGBuilder took 1522.20 ms. Allocated memory is still 161.5 MB. Free memory was 109.7 MB in the beginning and 57.4 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.7 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:52,435 INFO L168 Benchmark]: TraceAbstraction took 66668.26 ms. Allocated memory was 161.5 MB in the beginning and 789.6 MB in the end (delta: 628.1 MB). Free memory was 56.8 MB in the beginning and 400.6 MB in the end (delta: -343.8 MB). Peak memory consumption was 285.9 MB. Max. memory is 8.0 GB. [2020-10-28 16:41:52,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 161.5 MB. Free memory was 132.5 MB in the beginning and 132.4 MB in the end (delta: 95.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 605.52 ms. Allocated memory is still 161.5 MB. Free memory was 134.3 MB in the beginning and 113.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 88.57 ms. Allocated memory is still 161.5 MB. Free memory was 113.9 MB in the beginning and 110.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1522.20 ms. Allocated memory is still 161.5 MB. Free memory was 109.7 MB in the beginning and 57.4 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 66668.26 ms. Allocated memory was 161.5 MB in the beginning and 789.6 MB in the end (delta: 628.1 MB). Free memory was 56.8 MB in the beginning and 400.6 MB in the end (delta: -343.8 MB). Peak memory consumption was 285.9 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: [L42] int cleanupTimeShifts = 4; [L379] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L769] int splverifierCounter ; [L770] int tmp ; [L771] int tmp___0 ; [L772] int tmp___1 ; [L773] int tmp___2 ; [L776] splverifierCounter = 0 [L778] COND TRUE 1 [L780] COND TRUE splverifierCounter < 4 [L786] tmp = __VERIFIER_nondet_int() [L788] COND TRUE \read(tmp) [L790] CALL waterRise() [L863] COND TRUE waterLevel < 2 [L864] waterLevel = waterLevel + 1 [L790] RET waterRise() [L796] tmp___0 = __VERIFIER_nondet_int() [L798] COND TRUE \read(tmp___0) [L800] CALL changeMethaneLevel() [L875] COND FALSE !(\read(methaneLevelCritical)) [L878] methaneLevelCritical = 1 [L800] RET changeMethaneLevel() [L806] tmp___2 = __VERIFIER_nondet_int() [L808] COND FALSE !(\read(tmp___2)) [L814] tmp___1 = __VERIFIER_nondet_int() [L816] COND FALSE !(\read(tmp___1)) [L823] CALL timeShift() [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L598] CALL processEnvironment() [L644] int tmp ; [L647] COND FALSE !(\read(pumpRunning)) [L662] CALL processEnvironment__wrappee__highWaterSensor() [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L623] CALL, EXPR isHighWaterLevel() [L741] int retValue_acc ; [L742] int tmp ; [L743] int tmp___0 ; [L747] CALL, EXPR isHighWaterSensorDry() [L925] int retValue_acc ; [L928] COND FALSE !(waterLevel < 2) [L932] retValue_acc = 0 [L933] return (retValue_acc); [L747] RET, EXPR isHighWaterSensorDry() [L747] tmp = isHighWaterSensorDry() [L749] COND FALSE !(\read(tmp)) [L752] tmp___0 = 1 [L754] retValue_acc = tmp___0 [L755] return (retValue_acc); [L623] RET, EXPR isHighWaterLevel() [L623] tmp = isHighWaterLevel() [L625] COND TRUE \read(tmp) [L627] CALL activatePump() [L672] pumpRunning = 1 [L627] RET activatePump() [L662] RET processEnvironment__wrappee__highWaterSensor() [L598] RET processEnvironment() [L604] CALL __utac_acc__Specification1_spec__1() [L185] int tmp ; [L186] int tmp___0 ; [L190] CALL, EXPR isMethaneLevelCritical() [L884] int retValue_acc ; [L887] retValue_acc = methaneLevelCritical [L888] return (retValue_acc); [L190] RET, EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND TRUE \read(tmp) [L194] CALL, EXPR isPumpRunning() [L696] int retValue_acc ; [L699] retValue_acc = pumpRunning [L700] return (retValue_acc); [L194] RET, EXPR isPumpRunning() [L194] tmp___0 = isPumpRunning() [L196] COND TRUE \read(tmp___0) [L198] CALL __automaton_fail() [L839] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product38.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 241 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 66.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 30.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1066 SDtfs, 1754 SDslu, 856 SDs, 0 SdLazy, 3750 SolverSat, 1135 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 208 SyntacticMatches, 4 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 13.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=690occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 435 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 34.0s InterpolantComputationTime, 711 NumberOfCodeBlocks, 711 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 613 ConstructedInterpolants, 0 QuantifiedInterpolants, 195972 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...