/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_spec3_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 21:58:52,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 21:58:52,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 21:58:52,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 21:58:52,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 21:58:52,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 21:58:52,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 21:58:52,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 21:58:52,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 21:58:52,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 21:58:52,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 21:58:52,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 21:58:52,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 21:58:52,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 21:58:52,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 21:58:52,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 21:58:52,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 21:58:52,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 21:58:52,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 21:58:52,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 21:58:52,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 21:58:52,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 21:58:52,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 21:58:52,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 21:58:52,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 21:58:52,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 21:58:52,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 21:58:52,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 21:58:52,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 21:58:52,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 21:58:52,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 21:58:52,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 21:58:52,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 21:58:52,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 21:58:52,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 21:58:52,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 21:58:52,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 21:58:52,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 21:58:52,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 21:58:52,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 21:58:52,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 21:58:52,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 21:58:52,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 21:58:52,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 21:58:52,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 21:58:52,703 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 21:58:52,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 21:58:52,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 21:58:52,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 21:58:52,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 21:58:52,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 21:58:52,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 21:58:52,705 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 21:58:52,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 21:58:52,706 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 21:58:52,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 21:58:52,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 21:58:52,706 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 21:58:52,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 21:58:52,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 21:58:52,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 21:58:52,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 21:58:52,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 21:58:52,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 21:58:52,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 21:58:53,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 21:58:53,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 21:58:53,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 21:58:53,179 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 21:58:53,179 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 21:58:53,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2021-02-23 21:58:53,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532ce7fa7/e49c1195d41348728be5e0ba122db008/FLAG7ac1c2e67 [2021-02-23 21:58:53,900 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 21:58:53,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2021-02-23 21:58:53,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532ce7fa7/e49c1195d41348728be5e0ba122db008/FLAG7ac1c2e67 [2021-02-23 21:58:54,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/532ce7fa7/e49c1195d41348728be5e0ba122db008 [2021-02-23 21:58:54,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 21:58:54,231 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 21:58:54,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 21:58:54,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 21:58:54,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 21:58:54,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:58:54" (1/1) ... [2021-02-23 21:58:54,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@569ee86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54, skipping insertion in model container [2021-02-23 21:58:54,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:58:54" (1/1) ... [2021-02-23 21:58:54,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 21:58:54,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 21:58:54,575 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c[1817,1830] [2021-02-23 21:58:54,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:58:54,706 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 21:58:54,724 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c[1817,1830] [2021-02-23 21:58:54,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:58:54,857 INFO L208 MainTranslator]: Completed translation [2021-02-23 21:58:54,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54 WrapperNode [2021-02-23 21:58:54,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 21:58:54,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 21:58:54,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 21:58:54,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 21:58:54,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54" (1/1) ... [2021-02-23 21:58:54,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54" (1/1) ... [2021-02-23 21:58:54,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54" (1/1) ... [2021-02-23 21:58:54,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54" (1/1) ... [2021-02-23 21:58:54,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54" (1/1) ... [2021-02-23 21:58:54,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54" (1/1) ... [2021-02-23 21:58:54,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54" (1/1) ... [2021-02-23 21:58:55,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 21:58:55,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 21:58:55,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 21:58:55,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 21:58:55,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54" (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 [2021-02-23 21:58:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 21:58:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 21:58:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 21:58:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 21:58:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 21:58:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 21:58:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 21:58:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 21:58:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 21:58:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 21:58:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 21:58:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 21:58:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 21:58:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 21:58:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 21:58:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 21:58:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 21:58:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 21:58:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 21:58:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 21:58:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 21:58:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 21:58:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 21:58:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 21:58:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 21:58:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 21:58:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 21:58:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 21:58:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 21:58:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 21:58:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 21:58:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 21:58:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 21:58:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 21:58:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 21:58:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:58:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 21:58:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 21:58:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 21:58:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 21:58:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 21:58:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 21:58:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 21:58:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 21:58:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 21:58:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 21:58:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 21:58:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 21:58:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 21:58:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 21:58:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 21:58:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 21:58:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 21:58:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 21:58:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 21:58:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:58:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 21:58:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 21:58:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 21:58:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 21:58:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 21:58:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 21:58:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 21:58:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 21:58:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 21:58:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 21:58:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 21:58:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 21:58:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 21:58:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 21:58:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 21:58:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 21:58:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 21:58:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 21:58:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 21:58:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 21:58:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 21:58:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 21:58:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 21:58:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 21:58:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 21:58:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 21:58:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 21:58:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 21:58:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 21:58:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 21:58:56,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 21:58:56,435 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 21:58:56,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:58:56 BoogieIcfgContainer [2021-02-23 21:58:56,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 21:58:56,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 21:58:56,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 21:58:56,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 21:58:56,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 09:58:54" (1/3) ... [2021-02-23 21:58:56,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a44f12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:58:56, skipping insertion in model container [2021-02-23 21:58:56,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:58:54" (2/3) ... [2021-02-23 21:58:56,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a44f12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:58:56, skipping insertion in model container [2021-02-23 21:58:56,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:58:56" (3/3) ... [2021-02-23 21:58:56,452 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2021-02-23 21:58:56,458 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 21:58:56,463 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 21:58:56,483 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 21:58:56,508 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 21:58:56,508 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 21:58:56,509 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 21:58:56,509 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 21:58:56,509 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 21:58:56,509 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 21:58:56,509 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 21:58:56,509 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 21:58:56,533 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2021-02-23 21:58:56,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 21:58:56,555 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:56,556 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] [2021-02-23 21:58:56,556 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:56,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:56,563 INFO L82 PathProgramCache]: Analyzing trace with hash 255202477, now seen corresponding path program 1 times [2021-02-23 21:58:56,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:56,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832632662] [2021-02-23 21:58:56,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:57,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,419 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:58:57,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:58:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:57,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:58:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:57,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:58:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:57,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:58:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:57,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:58:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:57,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 21:58:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:57,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:58:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:57,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 21:58:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:57,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:57,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:57,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:58:57,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832632662] [2021-02-23 21:58:57,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:58:57,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 21:58:57,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264746058] [2021-02-23 21:58:57,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 21:58:57,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:58:57,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 21:58:57,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:58:57,703 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2021-02-23 21:58:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:58:59,232 INFO L93 Difference]: Finished difference Result 419 states and 501 transitions. [2021-02-23 21:58:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 21:58:59,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 21:58:59,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:58:59,250 INFO L225 Difference]: With dead ends: 419 [2021-02-23 21:58:59,250 INFO L226 Difference]: Without dead ends: 268 [2021-02-23 21:58:59,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:58:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-02-23 21:58:59,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 229. [2021-02-23 21:58:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-02-23 21:58:59,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 247 transitions. [2021-02-23 21:58:59,402 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 247 transitions. Word has length 158 [2021-02-23 21:58:59,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:58:59,403 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 247 transitions. [2021-02-23 21:58:59,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 21:58:59,403 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 247 transitions. [2021-02-23 21:58:59,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 21:58:59,408 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:58:59,408 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] [2021-02-23 21:58:59,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 21:58:59,409 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:58:59,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:58:59,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1300908467, now seen corresponding path program 1 times [2021-02-23 21:58:59,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:58:59,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464680772] [2021-02-23 21:58:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:58:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:58:59,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,868 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:58:59,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:58:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:58:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:58:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:58:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:58:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 21:58:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 21:58:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 21:58:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:58:59,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:58:59,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:58:59,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:58:59,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464680772] [2021-02-23 21:58:59,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:58:59,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 21:58:59,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792366113] [2021-02-23 21:58:59,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 21:58:59,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:58:59,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 21:58:59,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 21:58:59,983 INFO L87 Difference]: Start difference. First operand 229 states and 247 transitions. Second operand 4 states. [2021-02-23 21:59:00,745 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:59:01,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:01,672 INFO L93 Difference]: Finished difference Result 335 states and 375 transitions. [2021-02-23 21:59:01,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 21:59:01,673 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 21:59:01,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:01,677 INFO L225 Difference]: With dead ends: 335 [2021-02-23 21:59:01,677 INFO L226 Difference]: Without dead ends: 251 [2021-02-23 21:59:01,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 21:59:01,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-23 21:59:01,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-23 21:59:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-23 21:59:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2021-02-23 21:59:01,776 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 159 [2021-02-23 21:59:01,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:01,777 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2021-02-23 21:59:01,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 21:59:01,777 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2021-02-23 21:59:01,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-23 21:59:01,780 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:01,780 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] [2021-02-23 21:59:01,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 21:59:01,781 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:01,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:01,782 INFO L82 PathProgramCache]: Analyzing trace with hash 506809905, now seen corresponding path program 1 times [2021-02-23 21:59:01,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:01,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983995717] [2021-02-23 21:59:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:01,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:01,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:01,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:01,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:01,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:01,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:01,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:01,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:59:01,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:01,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:02,245 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:02,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:02,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:02,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:59:02,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:02,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:02,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:02,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:02,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:02,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:02,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:59:02,411 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 21:59:02,412 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 21:59:02,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:02,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:02,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:59:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:02,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:02,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 21:59:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:02,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:02,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-23 21:59:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:02,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:02,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:02,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:59:02,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983995717] [2021-02-23 21:59:02,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:02,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 21:59:02,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319294537] [2021-02-23 21:59:02,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 21:59:02,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:02,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 21:59:02,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 21:59:02,516 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand 9 states. [2021-02-23 21:59:03,177 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:03,608 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:59:03,990 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 21:59:04,380 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:04,739 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:05,096 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:06,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:06,374 INFO L93 Difference]: Finished difference Result 355 states and 400 transitions. [2021-02-23 21:59:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 21:59:06,375 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-23 21:59:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:06,378 INFO L225 Difference]: With dead ends: 355 [2021-02-23 21:59:06,378 INFO L226 Difference]: Without dead ends: 251 [2021-02-23 21:59:06,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-02-23 21:59:06,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-02-23 21:59:06,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 219. [2021-02-23 21:59:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-23 21:59:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 233 transitions. [2021-02-23 21:59:06,464 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 233 transitions. Word has length 168 [2021-02-23 21:59:06,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:06,464 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 233 transitions. [2021-02-23 21:59:06,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 21:59:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 233 transitions. [2021-02-23 21:59:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-23 21:59:06,467 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:06,467 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] [2021-02-23 21:59:06,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 21:59:06,468 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:06,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:06,468 INFO L82 PathProgramCache]: Analyzing trace with hash -910061808, now seen corresponding path program 1 times [2021-02-23 21:59:06,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:06,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034502172] [2021-02-23 21:59:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:06,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:06,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:06,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:06,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:06,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:06,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:06,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,904 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:06,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:59:06,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-23 21:59:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:59:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-02-23 21:59:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-02-23 21:59:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:06,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:06,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:06,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:07,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:07,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:07,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-02-23 21:59:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:07,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:07,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:07,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:59:07,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034502172] [2021-02-23 21:59:07,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:07,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 21:59:07,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192733762] [2021-02-23 21:59:07,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 21:59:07,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:07,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 21:59:07,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 21:59:07,070 INFO L87 Difference]: Start difference. First operand 219 states and 233 transitions. Second operand 9 states. [2021-02-23 21:59:07,622 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:09,410 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:09,814 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:10,202 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:10,591 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:10,944 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:11,419 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:11,815 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:12,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:12,072 INFO L93 Difference]: Finished difference Result 494 states and 585 transitions. [2021-02-23 21:59:12,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 21:59:12,074 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2021-02-23 21:59:12,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:12,078 INFO L225 Difference]: With dead ends: 494 [2021-02-23 21:59:12,078 INFO L226 Difference]: Without dead ends: 390 [2021-02-23 21:59:12,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 21:59:12,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-02-23 21:59:12,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 315. [2021-02-23 21:59:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2021-02-23 21:59:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 346 transitions. [2021-02-23 21:59:12,218 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 346 transitions. Word has length 176 [2021-02-23 21:59:12,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:12,218 INFO L480 AbstractCegarLoop]: Abstraction has 315 states and 346 transitions. [2021-02-23 21:59:12,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 21:59:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 346 transitions. [2021-02-23 21:59:12,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-23 21:59:12,221 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:12,222 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] [2021-02-23 21:59:12,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 21:59:12,222 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:12,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:12,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1745516094, now seen corresponding path program 1 times [2021-02-23 21:59:12,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:12,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111463383] [2021-02-23 21:59:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:12,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:12,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:12,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:12,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:12,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,600 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:12,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:12,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-23 21:59:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 21:59:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 21:59:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-23 21:59:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-23 21:59:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-02-23 21:59:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:12,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:12,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:59:12,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111463383] [2021-02-23 21:59:12,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:12,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 21:59:12,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768430653] [2021-02-23 21:59:12,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 21:59:12,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:12,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 21:59:12,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 21:59:12,759 INFO L87 Difference]: Start difference. First operand 315 states and 346 transitions. Second operand 6 states. [2021-02-23 21:59:13,366 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:14,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:14,113 INFO L93 Difference]: Finished difference Result 484 states and 550 transitions. [2021-02-23 21:59:14,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 21:59:14,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2021-02-23 21:59:14,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:14,116 INFO L225 Difference]: With dead ends: 484 [2021-02-23 21:59:14,116 INFO L226 Difference]: Without dead ends: 284 [2021-02-23 21:59:14,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-23 21:59:14,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-02-23 21:59:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 263. [2021-02-23 21:59:14,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2021-02-23 21:59:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 278 transitions. [2021-02-23 21:59:14,221 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 278 transitions. Word has length 181 [2021-02-23 21:59:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:14,221 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 278 transitions. [2021-02-23 21:59:14,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 21:59:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 278 transitions. [2021-02-23 21:59:14,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-23 21:59:14,224 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:14,224 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] [2021-02-23 21:59:14,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 21:59:14,225 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:14,226 INFO L82 PathProgramCache]: Analyzing trace with hash -997262042, now seen corresponding path program 1 times [2021-02-23 21:59:14,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:14,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186412335] [2021-02-23 21:59:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:59:14,312 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:59:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:59:14,387 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:59:14,573 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 21:59:14,573 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 21:59:14,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 21:59:14,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 09:59:14 BoogieIcfgContainer [2021-02-23 21:59:14,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 21:59:14,777 INFO L168 Benchmark]: Toolchain (without parser) took 20557.34 ms. Allocated memory was 161.5 MB in the beginning and 462.4 MB in the end (delta: 300.9 MB). Free memory was 137.0 MB in the beginning and 186.3 MB in the end (delta: -49.3 MB). Peak memory consumption was 252.6 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:14,777 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 161.5 MB. Free memory was 135.1 MB in the beginning and 135.0 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 21:59:14,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.53 ms. Allocated memory is still 161.5 MB. Free memory was 136.0 MB in the beginning and 116.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:14,778 INFO L168 Benchmark]: Boogie Preprocessor took 158.55 ms. Allocated memory is still 161.5 MB. Free memory was 116.0 MB in the beginning and 142.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:14,779 INFO L168 Benchmark]: RCFGBuilder took 1424.28 ms. Allocated memory is still 161.5 MB. Free memory was 142.9 MB in the beginning and 100.9 MB in the end (delta: 42.0 MB). Peak memory consumption was 62.4 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:14,780 INFO L168 Benchmark]: TraceAbstraction took 18331.48 ms. Allocated memory was 161.5 MB in the beginning and 462.4 MB in the end (delta: 300.9 MB). Free memory was 100.4 MB in the beginning and 186.3 MB in the end (delta: -85.9 MB). Peak memory consumption was 215.0 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:14,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 161.5 MB. Free memory was 135.1 MB in the beginning and 135.0 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 623.53 ms. Allocated memory is still 161.5 MB. Free memory was 136.0 MB in the beginning and 116.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.55 ms. Allocated memory is still 161.5 MB. Free memory was 116.0 MB in the beginning and 142.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1424.28 ms. Allocated memory is still 161.5 MB. Free memory was 142.9 MB in the beginning and 100.9 MB in the end (delta: 42.0 MB). Peak memory consumption was 62.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18331.48 ms. Allocated memory was 161.5 MB in the beginning and 462.4 MB in the end (delta: 300.9 MB). Free memory was 100.4 MB in the beginning and 186.3 MB in the end (delta: -85.9 MB). Peak memory consumption was 215.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 84]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L97] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=147, cleanupTimeShifts=181, head={182:172}, methaneLevelCritical=151, pumpRunning=0, systemActive=143, waterLevel=147] [L98] int systemActive = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=151, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=147, cleanupTimeShifts=181, head={182:172}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=147] [L299] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=181, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=147, cleanupTimeShifts=4, head={182:172}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=147] [L564] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=147, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=147] [L762] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=147, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=1] [L763] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=151, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=147, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L372] 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] [L373] 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] [L377] 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] [L378] 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] [L379] 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] [L71] 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] [L74] 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] [L75] 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] [L379] 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] [L379] 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] [L381] 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] [L383] 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] [L384] 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] [L366] 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] [L235] 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] [L236] 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] [L237] 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] [L238] 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] [L239] 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] [L242] 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] [L244] 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] [L246] 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] [L252] 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] [L254] 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] [L256] 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] [L780] 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] [L781] 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] [L256] 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] [L262] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L264] COND FALSE !(\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=0, waterLevel=2] [L272] 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=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L274] COND TRUE \read(tmp___2) 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=0, tmp___2=1, waterLevel=2] [L287] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L105] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L112] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L134] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L152] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L120] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L843] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L844] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L845] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L849] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L801] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L804] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L805] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L849] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L849] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L851] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L855] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L833] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L836] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L837] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L855] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L855] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L857] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L859] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L186] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L190] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L859] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L859] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L861] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L865] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 599 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1022 SDtfs, 1463 SDslu, 1280 SDs, 0 SdLazy, 2324 SolverSat, 455 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 199 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1023 NumberOfCodeBlocks, 1023 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 837 ConstructedInterpolants, 0 QuantifiedInterpolants, 365576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...