/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 03:54:57,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 03:54:57,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 03:54:57,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 03:54:57,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 03:54:57,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 03:54:57,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 03:54:57,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 03:54:57,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 03:54:57,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 03:54:57,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 03:54:57,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 03:54:57,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 03:54:57,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 03:54:57,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 03:54:57,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 03:54:57,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 03:54:57,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 03:54:57,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 03:54:57,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 03:54:57,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 03:54:57,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 03:54:57,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 03:54:57,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 03:54:57,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 03:54:57,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 03:54:57,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 03:54:57,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 03:54:57,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 03:54:57,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 03:54:57,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 03:54:57,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 03:54:57,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 03:54:57,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 03:54:57,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 03:54:57,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 03:54:57,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 03:54:57,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 03:54:57,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 03:54:57,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 03:54:57,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 03:54:57,732 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 03:54:57,753 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 03:54:57,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 03:54:57,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 03:54:57,758 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 03:54:57,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 03:54:57,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 03:54:57,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 03:54:57,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 03:54:57,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 03:54:57,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 03:54:57,760 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 03:54:57,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 03:54:57,760 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 03:54:57,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 03:54:57,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 03:54:57,761 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 03:54:57,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 03:54:57,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 03:54:57,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 03:54:57,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 03:54:57,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 03:54:57,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 03:54:57,762 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 03:54:58,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 03:54:58,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 03:54:58,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 03:54:58,186 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 03:54:58,187 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 03:54:58,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-11-07 03:54:58,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3501a7acd/5c324d3a62ba4e6582104a946e05f22b/FLAG405b2cbc7 [2020-11-07 03:54:58,888 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 03:54:58,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-11-07 03:54:58,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3501a7acd/5c324d3a62ba4e6582104a946e05f22b/FLAG405b2cbc7 [2020-11-07 03:54:59,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3501a7acd/5c324d3a62ba4e6582104a946e05f22b [2020-11-07 03:54:59,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 03:54:59,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 03:54:59,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 03:54:59,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 03:54:59,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 03:54:59,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:59" (1/1) ... [2020-11-07 03:54:59,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d179fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59, skipping insertion in model container [2020-11-07 03:54:59,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:59" (1/1) ... [2020-11-07 03:54:59,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 03:54:59,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 03:54:59,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:54:59,662 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 03:54:59,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:54:59,793 INFO L208 MainTranslator]: Completed translation [2020-11-07 03:54:59,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59 WrapperNode [2020-11-07 03:54:59,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 03:54:59,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 03:54:59,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 03:54:59,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 03:54:59,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59" (1/1) ... [2020-11-07 03:54:59,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59" (1/1) ... [2020-11-07 03:54:59,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59" (1/1) ... [2020-11-07 03:54:59,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59" (1/1) ... [2020-11-07 03:54:59,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59" (1/1) ... [2020-11-07 03:54:59,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59" (1/1) ... [2020-11-07 03:54:59,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59" (1/1) ... [2020-11-07 03:54:59,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 03:54:59,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 03:54:59,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 03:54:59,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 03:54:59,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-11-07 03:55:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 03:55:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 03:55:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 03:55:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 03:55:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 03:55:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 03:55:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 03:55:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 03:55:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 03:55:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 03:55:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 03:55:00,105 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 03:55:00,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 03:55:00,106 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 03:55:00,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 03:55:00,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:55:00,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 03:55:00,106 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 03:55:00,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 03:55:00,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 03:55:00,109 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 03:55:00,109 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 03:55:00,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 03:55:00,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 03:55:00,110 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 03:55:00,110 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 03:55:00,110 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 03:55:00,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 03:55:00,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 03:55:00,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 03:55:00,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 03:55:00,112 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 03:55:00,112 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 03:55:00,115 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 03:55:00,115 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 03:55:00,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 03:55:00,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 03:55:00,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 03:55:00,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 03:55:00,116 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 03:55:00,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 03:55:00,116 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 03:55:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 03:55:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 03:55:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 03:55:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 03:55:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 03:55:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 03:55:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 03:55:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 03:55:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 03:55:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 03:55:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 03:55:00,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 03:55:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 03:55:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 03:55:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 03:55:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 03:55:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 03:55:00,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 03:55:00,123 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 03:55:00,123 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 03:55:00,126 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 03:55:00,126 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 03:55:00,126 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 03:55:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 03:55:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 03:55:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 03:55:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 03:55:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 03:55:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 03:55:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 03:55:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 03:55:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 03:55:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 03:55:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 03:55:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:55:00,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 03:55:00,129 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 03:55:00,129 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 03:55:00,129 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 03:55:00,129 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 03:55:00,129 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 03:55:00,129 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 03:55:00,130 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 03:55:00,130 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 03:55:00,130 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 03:55:00,130 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 03:55:00,130 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 03:55:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 03:55:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 03:55:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 03:55:01,631 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 03:55:01,631 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 03:55:01,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:01 BoogieIcfgContainer [2020-11-07 03:55:01,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 03:55:01,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 03:55:01,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 03:55:01,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 03:55:01,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:54:59" (1/3) ... [2020-11-07 03:55:01,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6562f4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:01, skipping insertion in model container [2020-11-07 03:55:01,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:59" (2/3) ... [2020-11-07 03:55:01,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6562f4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:01, skipping insertion in model container [2020-11-07 03:55:01,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:01" (3/3) ... [2020-11-07 03:55:01,643 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-11-07 03:55:01,658 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 03:55:01,663 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 03:55:01,675 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 03:55:01,699 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 03:55:01,699 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 03:55:01,699 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 03:55:01,699 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 03:55:01,699 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 03:55:01,700 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 03:55:01,700 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 03:55:01,700 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 03:55:01,721 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-11-07 03:55:01,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-07 03:55:01,740 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:01,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:01,742 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]=== [2020-11-07 03:55:01,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:01,749 INFO L82 PathProgramCache]: Analyzing trace with hash -66250541, now seen corresponding path program 1 times [2020-11-07 03:55:01,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:01,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423043368] [2020-11-07 03:55:01,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,447 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:02,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:55:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:02,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1423043368] [2020-11-07 03:55:02,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:02,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 03:55:02,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118905473] [2020-11-07 03:55:02,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 03:55:02,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:02,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 03:55:02,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:55:02,638 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-11-07 03:55:04,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:04,290 INFO L93 Difference]: Finished difference Result 477 states and 569 transitions. [2020-11-07 03:55:04,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 03:55:04,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-07 03:55:04,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:04,310 INFO L225 Difference]: With dead ends: 477 [2020-11-07 03:55:04,310 INFO L226 Difference]: Without dead ends: 297 [2020-11-07 03:55:04,318 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 [2020-11-07 03:55:04,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-11-07 03:55:04,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 256. [2020-11-07 03:55:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-11-07 03:55:04,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 278 transitions. [2020-11-07 03:55:04,504 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 278 transitions. Word has length 148 [2020-11-07 03:55:04,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:04,505 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 278 transitions. [2020-11-07 03:55:04,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 03:55:04,506 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 278 transitions. [2020-11-07 03:55:04,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-07 03:55:04,511 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:04,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:04,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 03:55:04,512 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]=== [2020-11-07 03:55:04,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:04,513 INFO L82 PathProgramCache]: Analyzing trace with hash -479543084, now seen corresponding path program 1 times [2020-11-07 03:55:04,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:04,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643946938] [2020-11-07 03:55:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:05,050 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:05,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:05,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:05,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:05,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:05,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 03:55:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:05,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:55:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:05,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643946938] [2020-11-07 03:55:05,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:05,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 03:55:05,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433397283] [2020-11-07 03:55:05,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 03:55:05,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:05,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 03:55:05,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 03:55:05,145 INFO L87 Difference]: Start difference. First operand 256 states and 278 transitions. Second operand 4 states. [2020-11-07 03:55:05,999 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:07,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:07,171 INFO L93 Difference]: Finished difference Result 391 states and 440 transitions. [2020-11-07 03:55:07,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 03:55:07,174 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-07 03:55:07,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:07,180 INFO L225 Difference]: With dead ends: 391 [2020-11-07 03:55:07,180 INFO L226 Difference]: Without dead ends: 280 [2020-11-07 03:55:07,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 03:55:07,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-07 03:55:07,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 246. [2020-11-07 03:55:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-11-07 03:55:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 265 transitions. [2020-11-07 03:55:07,307 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 265 transitions. Word has length 149 [2020-11-07 03:55:07,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:07,310 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 265 transitions. [2020-11-07 03:55:07,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 03:55:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 265 transitions. [2020-11-07 03:55:07,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-11-07 03:55:07,314 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:07,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:07,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 03:55:07,315 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]=== [2020-11-07 03:55:07,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:07,316 INFO L82 PathProgramCache]: Analyzing trace with hash -695224173, now seen corresponding path program 1 times [2020-11-07 03:55:07,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:07,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538648575] [2020-11-07 03:55:07,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:07,983 WARN L194 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:07,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:55:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 03:55:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:08,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538648575] [2020-11-07 03:55:08,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:08,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:55:08,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070098525] [2020-11-07 03:55:08,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:55:08,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:08,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:55:08,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:55:08,287 INFO L87 Difference]: Start difference. First operand 246 states and 265 transitions. Second operand 9 states. [2020-11-07 03:55:08,951 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:09,460 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:09,841 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:10,238 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:10,598 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:10,970 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:12,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:12,786 INFO L93 Difference]: Finished difference Result 411 states and 465 transitions. [2020-11-07 03:55:12,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 03:55:12,787 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-11-07 03:55:12,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:12,791 INFO L225 Difference]: With dead ends: 411 [2020-11-07 03:55:12,791 INFO L226 Difference]: Without dead ends: 280 [2020-11-07 03:55:12,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-07 03:55:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-07 03:55:12,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 246. [2020-11-07 03:55:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-11-07 03:55:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 264 transitions. [2020-11-07 03:55:12,924 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 264 transitions. Word has length 158 [2020-11-07 03:55:12,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:12,934 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 264 transitions. [2020-11-07 03:55:12,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:55:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 264 transitions. [2020-11-07 03:55:12,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-07 03:55:12,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:12,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:12,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 03:55:12,937 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]=== [2020-11-07 03:55:12,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:12,938 INFO L82 PathProgramCache]: Analyzing trace with hash -604121053, now seen corresponding path program 1 times [2020-11-07 03:55:12,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:12,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211904978] [2020-11-07 03:55:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,367 WARN L194 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:13,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:55:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-11-07 03:55:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-11-07 03:55:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:13,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211904978] [2020-11-07 03:55:13,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:13,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 03:55:13,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894706537] [2020-11-07 03:55:13,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 03:55:13,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:13,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 03:55:13,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-07 03:55:13,565 INFO L87 Difference]: Start difference. First operand 246 states and 264 transitions. Second operand 6 states. [2020-11-07 03:55:14,203 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:15,995 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:16,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:16,940 INFO L93 Difference]: Finished difference Result 544 states and 622 transitions. [2020-11-07 03:55:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 03:55:16,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-11-07 03:55:16,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:16,944 INFO L225 Difference]: With dead ends: 544 [2020-11-07 03:55:16,945 INFO L226 Difference]: Without dead ends: 413 [2020-11-07 03:55:16,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-07 03:55:16,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-07 03:55:17,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 352. [2020-11-07 03:55:17,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-11-07 03:55:17,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 379 transitions. [2020-11-07 03:55:17,105 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 379 transitions. Word has length 171 [2020-11-07 03:55:17,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:17,106 INFO L481 AbstractCegarLoop]: Abstraction has 352 states and 379 transitions. [2020-11-07 03:55:17,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 03:55:17,106 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 379 transitions. [2020-11-07 03:55:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-11-07 03:55:17,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:17,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:17,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 03:55:17,109 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]=== [2020-11-07 03:55:17,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:17,110 INFO L82 PathProgramCache]: Analyzing trace with hash -708516420, now seen corresponding path program 1 times [2020-11-07 03:55:17,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:17,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407532916] [2020-11-07 03:55:17,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,489 WARN L194 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:17,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:55:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 03:55:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-11-07 03:55:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:17,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407532916] [2020-11-07 03:55:17,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:17,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:55:17,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514766694] [2020-11-07 03:55:17,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:55:17,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:17,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:55:17,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:55:17,730 INFO L87 Difference]: Start difference. First operand 352 states and 379 transitions. Second operand 9 states. [2020-11-07 03:55:18,343 WARN L194 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:19,583 WARN L194 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:19,991 WARN L194 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:20,410 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:20,775 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:21,202 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:21,581 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:23,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:23,537 INFO L93 Difference]: Finished difference Result 843 states and 985 transitions. [2020-11-07 03:55:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 03:55:23,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2020-11-07 03:55:23,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:23,544 INFO L225 Difference]: With dead ends: 843 [2020-11-07 03:55:23,545 INFO L226 Difference]: Without dead ends: 606 [2020-11-07 03:55:23,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-11-07 03:55:23,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-11-07 03:55:23,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 528. [2020-11-07 03:55:23,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-07 03:55:23,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 582 transitions. [2020-11-07 03:55:23,805 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 582 transitions. Word has length 195 [2020-11-07 03:55:23,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:23,805 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 582 transitions. [2020-11-07 03:55:23,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:55:23,806 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 582 transitions. [2020-11-07 03:55:23,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-11-07 03:55:23,809 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:23,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:23,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 03:55:23,810 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]=== [2020-11-07 03:55:23,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:23,810 INFO L82 PathProgramCache]: Analyzing trace with hash 931777561, now seen corresponding path program 1 times [2020-11-07 03:55:23,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:23,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57849649] [2020-11-07 03:55:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,201 WARN L194 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:24,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:55:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 03:55:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-11-07 03:55:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:24,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57849649] [2020-11-07 03:55:24,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:24,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:55:24,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642074255] [2020-11-07 03:55:24,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:55:24,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:24,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:55:24,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:55:24,380 INFO L87 Difference]: Start difference. First operand 528 states and 582 transitions. Second operand 9 states. [2020-11-07 03:55:25,046 WARN L194 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:26,852 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:27,230 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:27,630 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:28,012 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:28,386 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:28,760 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:29,129 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:29,632 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:31,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:31,157 INFO L93 Difference]: Finished difference Result 1407 states and 1648 transitions. [2020-11-07 03:55:31,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 03:55:31,158 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2020-11-07 03:55:31,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:31,165 INFO L225 Difference]: With dead ends: 1407 [2020-11-07 03:55:31,165 INFO L226 Difference]: Without dead ends: 994 [2020-11-07 03:55:31,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-07 03:55:31,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2020-11-07 03:55:31,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 879. [2020-11-07 03:55:31,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-11-07 03:55:31,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 978 transitions. [2020-11-07 03:55:31,606 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 978 transitions. Word has length 195 [2020-11-07 03:55:31,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:31,607 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 978 transitions. [2020-11-07 03:55:31,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:55:31,607 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 978 transitions. [2020-11-07 03:55:31,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-11-07 03:55:31,611 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:31,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:31,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 03:55:31,612 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]=== [2020-11-07 03:55:31,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:31,613 INFO L82 PathProgramCache]: Analyzing trace with hash -616231985, now seen corresponding path program 1 times [2020-11-07 03:55:31,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:31,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138309434] [2020-11-07 03:55:31,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,025 WARN L194 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:32,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:55:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 03:55:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-11-07 03:55:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:32,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:32,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138309434] [2020-11-07 03:55:32,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:32,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:55:32,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861182943] [2020-11-07 03:55:32,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:55:32,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:32,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:55:32,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:32,241 INFO L87 Difference]: Start difference. First operand 879 states and 978 transitions. Second operand 10 states. [2020-11-07 03:55:32,877 WARN L194 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:34,745 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:35,139 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:35,546 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:35,941 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:36,346 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:36,765 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:37,133 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:37,524 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:38,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:38,977 INFO L93 Difference]: Finished difference Result 1103 states and 1295 transitions. [2020-11-07 03:55:38,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 03:55:38,978 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-11-07 03:55:38,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:38,987 INFO L225 Difference]: With dead ends: 1103 [2020-11-07 03:55:38,987 INFO L226 Difference]: Without dead ends: 1099 [2020-11-07 03:55:38,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-07 03:55:38,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2020-11-07 03:55:39,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 879. [2020-11-07 03:55:39,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-11-07 03:55:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 976 transitions. [2020-11-07 03:55:39,368 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 976 transitions. Word has length 200 [2020-11-07 03:55:39,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:39,368 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 976 transitions. [2020-11-07 03:55:39,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:55:39,369 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 976 transitions. [2020-11-07 03:55:39,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-11-07 03:55:39,373 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:39,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:39,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 03:55:39,373 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]=== [2020-11-07 03:55:39,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:39,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1691615419, now seen corresponding path program 1 times [2020-11-07 03:55:39,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:39,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096065244] [2020-11-07 03:55:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,747 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:39,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:55:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-11-07 03:55:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-11-07 03:55:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:39,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:39,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096065244] [2020-11-07 03:55:39,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:39,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:55:39,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891257008] [2020-11-07 03:55:39,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:55:39,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:39,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:55:39,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:39,964 INFO L87 Difference]: Start difference. First operand 879 states and 976 transitions. Second operand 10 states. [2020-11-07 03:55:41,400 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:41,778 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:42,185 WARN L194 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 03:55:42,570 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:42,957 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:43,315 WARN L194 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:44,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:44,919 INFO L93 Difference]: Finished difference Result 1885 states and 2201 transitions. [2020-11-07 03:55:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 03:55:44,919 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2020-11-07 03:55:44,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:44,927 INFO L225 Difference]: With dead ends: 1885 [2020-11-07 03:55:44,927 INFO L226 Difference]: Without dead ends: 1121 [2020-11-07 03:55:44,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-11-07 03:55:44,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2020-11-07 03:55:45,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 911. [2020-11-07 03:55:45,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-11-07 03:55:45,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1008 transitions. [2020-11-07 03:55:45,290 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1008 transitions. Word has length 201 [2020-11-07 03:55:45,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:45,291 INFO L481 AbstractCegarLoop]: Abstraction has 911 states and 1008 transitions. [2020-11-07 03:55:45,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:55:45,291 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1008 transitions. [2020-11-07 03:55:45,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-11-07 03:55:45,295 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:45,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:45,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 03:55:45,295 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]=== [2020-11-07 03:55:45,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:45,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1566411035, now seen corresponding path program 1 times [2020-11-07 03:55:45,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:45,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328072744] [2020-11-07 03:55:45,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,666 WARN L194 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:45,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:55:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-11-07 03:55:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-11-07 03:55:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:45,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328072744] [2020-11-07 03:55:45,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:45,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 03:55:45,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128203498] [2020-11-07 03:55:45,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 03:55:45,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:45,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 03:55:45,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-11-07 03:55:45,954 INFO L87 Difference]: Start difference. First operand 911 states and 1008 transitions. Second operand 13 states. [2020-11-07 03:55:46,699 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:47,079 WARN L194 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:47,449 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:47,842 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:48,204 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:49,163 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:49,525 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:49,913 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:50,309 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:50,667 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:52,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:52,382 INFO L93 Difference]: Finished difference Result 1697 states and 1963 transitions. [2020-11-07 03:55:52,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 03:55:52,383 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 201 [2020-11-07 03:55:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:52,389 INFO L225 Difference]: With dead ends: 1697 [2020-11-07 03:55:52,389 INFO L226 Difference]: Without dead ends: 901 [2020-11-07 03:55:52,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-11-07 03:55:52,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-11-07 03:55:52,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 757. [2020-11-07 03:55:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 757 states. [2020-11-07 03:55:52,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 816 transitions. [2020-11-07 03:55:52,729 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 816 transitions. Word has length 201 [2020-11-07 03:55:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:52,729 INFO L481 AbstractCegarLoop]: Abstraction has 757 states and 816 transitions. [2020-11-07 03:55:52,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 03:55:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 816 transitions. [2020-11-07 03:55:52,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-11-07 03:55:52,733 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:52,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:52,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 03:55:52,734 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]=== [2020-11-07 03:55:52,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:52,734 INFO L82 PathProgramCache]: Analyzing trace with hash -980658218, now seen corresponding path program 1 times [2020-11-07 03:55:52,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:52,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106630705] [2020-11-07 03:55:52,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:55:52,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:55:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:55:52,875 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:55:53,097 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 03:55:53,097 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 03:55:53,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 03:55:53,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:55:53 BoogieIcfgContainer [2020-11-07 03:55:53,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 03:55:53,414 INFO L168 Benchmark]: Toolchain (without parser) took 54200.99 ms. Allocated memory was 125.8 MB in the beginning and 653.3 MB in the end (delta: 527.4 MB). Free memory was 101.7 MB in the beginning and 427.4 MB in the end (delta: -325.7 MB). Peak memory consumption was 202.4 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:53,415 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 03:55:53,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.21 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 80.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:53,416 INFO L168 Benchmark]: Boogie Preprocessor took 160.79 ms. Allocated memory is still 125.8 MB. Free memory was 79.9 MB in the beginning and 76.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:53,416 INFO L168 Benchmark]: RCFGBuilder took 1677.51 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 76.1 MB in the beginning and 115.2 MB in the end (delta: -39.0 MB). Peak memory consumption was 56.4 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:53,417 INFO L168 Benchmark]: TraceAbstraction took 51765.94 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 114.6 MB in the beginning and 427.4 MB in the end (delta: -312.7 MB). Peak memory consumption was 189.0 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:53,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 125.8 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 580.21 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 80.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 160.79 ms. Allocated memory is still 125.8 MB. Free memory was 79.9 MB in the beginning and 76.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1677.51 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 76.1 MB in the beginning and 115.2 MB in the end (delta: -39.0 MB). Peak memory consumption was 56.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 51765.94 ms. Allocated memory was 151.0 MB in the beginning and 653.3 MB in the end (delta: 502.3 MB). Free memory was 114.6 MB in the beginning and 427.4 MB in the end (delta: -312.7 MB). Peak memory consumption was 189.0 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=151, pumpRunning=141, systemActive=140, waterLevel=144] [L408] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=141, systemActive=140, waterLevel=144] [L590] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=140, waterLevel=144] [L591] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=144] [L834] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L490] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L495] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L496] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L576] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L579] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L580] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L496] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L496] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L498] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L500] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L501] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L769] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L770] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L771] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L772] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L776] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L778] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L780] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L786] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L788] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L790] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L790] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L796] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L798] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L800] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L864] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L800] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L806] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L808] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L821] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L604] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L606] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L652] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L655] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L626] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L631] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L749] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L750] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L751] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L755] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L914] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L917] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L921] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L922] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L755] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L755] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L757] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L760] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L762] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L763] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L631] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L631] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L633] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L635] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L680] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L635] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L670] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L606] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L612] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L516] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L517] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L521] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L873] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L876] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L877] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L521] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L521] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L523] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L525] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L704] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L707] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L708] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L525] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L525] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L527] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L529] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L545] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product37.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 631 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 51.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 42.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2122 SDtfs, 3315 SDslu, 4325 SDs, 0 SdLazy, 8053 SolverSat, 964 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 21.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=911occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 937 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 1824 NumberOfCodeBlocks, 1824 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1609 ConstructedInterpolants, 0 QuantifiedInterpolants, 742194 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...