/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:01:30,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:01:30,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:01:30,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 22:01:30,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 22:01:30,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 22:01:30,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 22:01:30,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 22:01:30,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 22:01:30,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 22:01:30,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 22:01:30,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 22:01:30,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:01:30,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:01:30,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:01:30,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:01:30,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:01:30,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:01:30,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:01:30,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:01:30,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:01:30,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:01:30,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:01:30,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:01:30,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:01:30,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:01:30,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:01:30,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:01:30,694 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 22:01:30,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:01:30,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:01:30,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:01:30,708 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:01:30,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:01:30,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:01:30,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:01:30,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:01:30,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:01:30,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:01:30,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:01:30,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:01:30,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:01:30,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:01:30,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:01:30,711 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:01:30,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:01:30,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:01:30,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:01:30,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:01:30,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:01:30,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:01:30,713 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:01:31,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:01:31,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:01:31,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:01:31,087 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:01:31,087 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:01:31,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2021-02-23 22:01:31,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d5036b10/306e91f7e457495c893a55984bbba1a9/FLAG7503393e1 [2021-02-23 22:01:31,827 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:01:31,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2021-02-23 22:01:31,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d5036b10/306e91f7e457495c893a55984bbba1a9/FLAG7503393e1 [2021-02-23 22:01:32,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d5036b10/306e91f7e457495c893a55984bbba1a9 [2021-02-23 22:01:32,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:01:32,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:01:32,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:01:32,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:01:32,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:01:32,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:01:32" (1/1) ... [2021-02-23 22:01:32,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503737da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32, skipping insertion in model container [2021-02-23 22:01:32,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:01:32" (1/1) ... [2021-02-23 22:01:32,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:01:32,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:01:32,393 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_product47.cil.c[1281,1294] [2021-02-23 22:01:32,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:01:32,556 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:01:32,572 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_product47.cil.c[1281,1294] [2021-02-23 22:01:32,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:01:32,732 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:01:32,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32 WrapperNode [2021-02-23 22:01:32,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:01:32,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:01:32,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:01:32,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:01:32,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32" (1/1) ... [2021-02-23 22:01:32,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32" (1/1) ... [2021-02-23 22:01:32,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32" (1/1) ... [2021-02-23 22:01:32,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32" (1/1) ... [2021-02-23 22:01:32,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32" (1/1) ... [2021-02-23 22:01:32,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32" (1/1) ... [2021-02-23 22:01:32,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32" (1/1) ... [2021-02-23 22:01:32,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:01:32,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:01:32,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:01:32,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:01:32,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32" (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 22:01:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:01:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:01:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 22:01:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:01:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 22:01:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 22:01:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 22:01:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 22:01:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 22:01:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:01:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 22:01:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 22:01:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 22:01:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 22:01:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 22:01:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 22:01:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 22:01:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 22:01:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 22:01:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 22:01:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 22:01:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 22:01:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 22:01:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 22:01:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 22:01:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2021-02-23 22:01:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 22:01:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 22:01:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 22:01:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 22:01:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 22:01:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 22:01:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 22:01:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 22:01:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 22:01:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 22:01:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 22:01:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 22:01:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 22:01:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 22:01:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:01:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:01:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:01:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:01:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:01:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 22:01:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 22:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 22:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 22:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 22:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 22:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 22:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 22:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 22:01:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 22:01:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 22:01:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 22:01:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 22:01:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 22:01:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 22:01:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:01:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 22:01:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 22:01:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 22:01:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 22:01:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 22:01:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 22:01:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:01:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 22:01:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 22:01:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:01:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 22:01:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 22:01:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:01:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 22:01:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 22:01:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 22:01:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 22:01:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 22:01:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 22:01:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 22:01:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 22:01:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 22:01:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 22:01:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 22:01:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:01:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 22:01:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 22:01:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 22:01:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 22:01:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 22:01:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2021-02-23 22:01:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 22:01:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:01:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:01:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:01:34,131 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:01:34,132 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 22:01:34,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:01:34 BoogieIcfgContainer [2021-02-23 22:01:34,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:01:34,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:01:34,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:01:34,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:01:34,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:01:32" (1/3) ... [2021-02-23 22:01:34,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d96317f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:01:34, skipping insertion in model container [2021-02-23 22:01:34,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:32" (2/3) ... [2021-02-23 22:01:34,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d96317f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:01:34, skipping insertion in model container [2021-02-23 22:01:34,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:01:34" (3/3) ... [2021-02-23 22:01:34,146 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2021-02-23 22:01:34,156 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:01:34,162 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:01:34,180 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:01:34,210 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:01:34,211 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:01:34,211 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:01:34,211 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:01:34,212 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:01:34,212 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:01:34,213 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:01:34,213 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:01:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states. [2021-02-23 22:01:34,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 22:01:34,257 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:34,258 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 22:01:34,258 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:34,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:34,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1629313999, now seen corresponding path program 1 times [2021-02-23 22:01:34,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:34,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762081870] [2021-02-23 22:01:34,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:34,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:34,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:34,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:34,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:35,056 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:01:35,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:01:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:35,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:35,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:35,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:01:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:35,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:35,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:35,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:01:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:35,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:35,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:35,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:01:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:35,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:35,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:35,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:01:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:35,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:35,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:35,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 22:01:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:35,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:35,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:35,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 22:01:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:35,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:35,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:35,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 22:01:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:35,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:35,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:35,239 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 22:01:35,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762081870] [2021-02-23 22:01:35,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:01:35,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 22:01:35,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93406458] [2021-02-23 22:01:35,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 22:01:35,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:01:35,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 22:01:35,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:01:35,282 INFO L87 Difference]: Start difference. First operand 333 states. Second operand 3 states. [2021-02-23 22:01:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:01:37,070 INFO L93 Difference]: Finished difference Result 529 states and 631 transitions. [2021-02-23 22:01:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 22:01:37,073 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 22:01:37,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:01:37,089 INFO L225 Difference]: With dead ends: 529 [2021-02-23 22:01:37,090 INFO L226 Difference]: Without dead ends: 326 [2021-02-23 22:01:37,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:01:37,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-02-23 22:01:37,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 281. [2021-02-23 22:01:37,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2021-02-23 22:01:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 308 transitions. [2021-02-23 22:01:37,275 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 308 transitions. Word has length 158 [2021-02-23 22:01:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:01:37,276 INFO L480 AbstractCegarLoop]: Abstraction has 281 states and 308 transitions. [2021-02-23 22:01:37,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 22:01:37,276 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 308 transitions. [2021-02-23 22:01:37,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 22:01:37,281 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:37,282 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 22:01:37,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:01:37,282 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:37,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:37,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1816359164, now seen corresponding path program 1 times [2021-02-23 22:01:37,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:37,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054200295] [2021-02-23 22:01:37,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:37,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:37,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,761 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:01:37,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:01:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:37,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:01:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:37,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:01:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:37,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:01:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:37,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:01:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:37,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 22:01:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:37,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 22:01:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:37,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 22:01:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:37,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:37,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:37,909 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 22:01:37,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054200295] [2021-02-23 22:01:37,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:01:37,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:01:37,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999382430] [2021-02-23 22:01:37,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:01:37,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:01:37,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:01:37,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:01:37,913 INFO L87 Difference]: Start difference. First operand 281 states and 308 transitions. Second operand 4 states. [2021-02-23 22:01:38,631 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:01:39,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:01:39,860 INFO L93 Difference]: Finished difference Result 439 states and 497 transitions. [2021-02-23 22:01:39,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 22:01:39,861 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 22:01:39,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:01:39,866 INFO L225 Difference]: With dead ends: 439 [2021-02-23 22:01:39,866 INFO L226 Difference]: Without dead ends: 309 [2021-02-23 22:01:39,868 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 22:01:39,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-02-23 22:01:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 271. [2021-02-23 22:01:39,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2021-02-23 22:01:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions. [2021-02-23 22:01:39,970 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 159 [2021-02-23 22:01:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:01:39,971 INFO L480 AbstractCegarLoop]: Abstraction has 271 states and 295 transitions. [2021-02-23 22:01:39,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:01:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions. [2021-02-23 22:01:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-23 22:01:39,974 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:39,974 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 22:01:39,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:01:39,975 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:39,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:39,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1677160890, now seen corresponding path program 1 times [2021-02-23 22:01:39,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:39,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017792108] [2021-02-23 22:01:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:40,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:40,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:40,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:40,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:40,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:01:40,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:01:40,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:01:40,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:40,447 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:01:40,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:01:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:40,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:40,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:01:40,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:01:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:40,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:40,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:01:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:40,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:40,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:01:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:40,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:40,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:01:40,552 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-23 22:01:40,553 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-23 22:01:40,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:01:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:40,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:40,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 22:01:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:40,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:40,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 22:01:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:40,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:40,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-23 22:01:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:40,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:40,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:40,628 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 22:01:40,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017792108] [2021-02-23 22:01:40,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:01:40,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 22:01:40,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735368864] [2021-02-23 22:01:40,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:01:40,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:01:40,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:01:40,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:01:40,631 INFO L87 Difference]: Start difference. First operand 271 states and 295 transitions. Second operand 9 states. [2021-02-23 22:01:41,228 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:01:41,654 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:01:42,035 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-23 22:01:42,399 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:42,797 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:01:43,157 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:44,169 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:01:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:01:46,883 INFO L93 Difference]: Finished difference Result 729 states and 842 transitions. [2021-02-23 22:01:46,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 22:01:46,884 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-23 22:01:46,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:01:46,890 INFO L225 Difference]: With dead ends: 729 [2021-02-23 22:01:46,891 INFO L226 Difference]: Without dead ends: 573 [2021-02-23 22:01:46,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-23 22:01:46,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-02-23 22:01:47,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 502. [2021-02-23 22:01:47,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2021-02-23 22:01:47,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 565 transitions. [2021-02-23 22:01:47,134 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 565 transitions. Word has length 168 [2021-02-23 22:01:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:01:47,134 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 565 transitions. [2021-02-23 22:01:47,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:01:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 565 transitions. [2021-02-23 22:01:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 22:01:47,138 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:47,139 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] [2021-02-23 22:01:47,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 22:01:47,139 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:47,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:47,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1286669336, now seen corresponding path program 1 times [2021-02-23 22:01:47,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:47,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355441149] [2021-02-23 22:01:47,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:47,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:47,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:47,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:47,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:47,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:47,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:47,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,626 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:01:47,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:01:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:01:47,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:01:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:01:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:01:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:01:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 22:01:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 22:01:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 22:01:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:47,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:47,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 22:01:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:47,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:47,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:47,808 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 22:01:47,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355441149] [2021-02-23 22:01:47,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:01:47,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 22:01:47,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229195736] [2021-02-23 22:01:47,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:01:47,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:01:47,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:01:47,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:01:47,810 INFO L87 Difference]: Start difference. First operand 502 states and 565 transitions. Second operand 9 states. [2021-02-23 22:01:48,369 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:01:50,556 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:50,992 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:01:51,430 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:51,840 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:01:52,206 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:01:52,541 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:52,928 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:01:54,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:01:54,147 INFO L93 Difference]: Finished difference Result 1363 states and 1646 transitions. [2021-02-23 22:01:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 22:01:54,148 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 22:01:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:01:54,156 INFO L225 Difference]: With dead ends: 1363 [2021-02-23 22:01:54,156 INFO L226 Difference]: Without dead ends: 976 [2021-02-23 22:01:54,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 22:01:54,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2021-02-23 22:01:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 872. [2021-02-23 22:01:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 872 states. [2021-02-23 22:01:54,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1006 transitions. [2021-02-23 22:01:54,521 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1006 transitions. Word has length 177 [2021-02-23 22:01:54,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:01:54,522 INFO L480 AbstractCegarLoop]: Abstraction has 872 states and 1006 transitions. [2021-02-23 22:01:54,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:01:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1006 transitions. [2021-02-23 22:01:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 22:01:54,531 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:54,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:01:54,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 22:01:54,532 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:54,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:54,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1818383811, now seen corresponding path program 1 times [2021-02-23 22:01:54,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:54,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83552492] [2021-02-23 22:01:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:54,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:54,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:54,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:54,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:54,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:54,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:54,870 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:01:54,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:01:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:54,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:54,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:01:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:54,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:01:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:54,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:01:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:54,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:01:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:54,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 22:01:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:01:54,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 22:01:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:54,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 22:01:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:54,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 22:01:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:54,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-23 22:01:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:01:54,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:01:54,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:01:55,048 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 22:01:55,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83552492] [2021-02-23 22:01:55,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:01:55,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 22:01:55,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197136144] [2021-02-23 22:01:55,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 22:01:55,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:01:55,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 22:01:55,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 22:01:55,051 INFO L87 Difference]: Start difference. First operand 872 states and 1006 transitions. Second operand 6 states. [2021-02-23 22:01:55,638 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:01:58,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:01:58,176 INFO L93 Difference]: Finished difference Result 2011 states and 2421 transitions. [2021-02-23 22:01:58,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 22:01:58,177 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2021-02-23 22:01:58,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:01:58,185 INFO L225 Difference]: With dead ends: 2011 [2021-02-23 22:01:58,185 INFO L226 Difference]: Without dead ends: 1254 [2021-02-23 22:01:58,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:01:58,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2021-02-23 22:01:58,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1157. [2021-02-23 22:01:58,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2021-02-23 22:01:58,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1320 transitions. [2021-02-23 22:01:58,787 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1320 transitions. Word has length 182 [2021-02-23 22:01:58,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:01:58,788 INFO L480 AbstractCegarLoop]: Abstraction has 1157 states and 1320 transitions. [2021-02-23 22:01:58,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 22:01:58,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1320 transitions. [2021-02-23 22:01:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 22:01:58,793 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:01:58,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:01:58,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 22:01:58,794 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:01:58,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:01:58,795 INFO L82 PathProgramCache]: Analyzing trace with hash -320143715, now seen corresponding path program 1 times [2021-02-23 22:01:58,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:01:58,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905871998] [2021-02-23 22:01:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:01:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:01:58,881 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:01:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:01:58,987 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:01:59,212 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:01:59,212 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:01:59,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 22:01:59,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:01:59 BoogieIcfgContainer [2021-02-23 22:01:59,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:01:59,486 INFO L168 Benchmark]: Toolchain (without parser) took 27410.91 ms. Allocated memory was 155.2 MB in the beginning and 576.7 MB in the end (delta: 421.5 MB). Free memory was 131.2 MB in the beginning and 247.1 MB in the end (delta: -115.9 MB). Peak memory consumption was 306.9 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:59,486 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:01:59,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.35 ms. Allocated memory is still 155.2 MB. Free memory was 129.9 MB in the beginning and 108.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:59,488 INFO L168 Benchmark]: Boogie Preprocessor took 152.36 ms. Allocated memory is still 155.2 MB. Free memory was 108.3 MB in the beginning and 135.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:59,489 INFO L168 Benchmark]: RCFGBuilder took 1249.10 ms. Allocated memory is still 155.2 MB. Free memory was 135.9 MB in the beginning and 91.7 MB in the end (delta: 44.2 MB). Peak memory consumption was 67.3 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:59,489 INFO L168 Benchmark]: TraceAbstraction took 25342.00 ms. Allocated memory was 155.2 MB in the beginning and 576.7 MB in the end (delta: 421.5 MB). Free memory was 91.2 MB in the beginning and 247.1 MB in the end (delta: -155.9 MB). Peak memory consumption was 265.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:01:59,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 642.35 ms. Allocated memory is still 155.2 MB. Free memory was 129.9 MB in the beginning and 108.3 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 152.36 ms. Allocated memory is still 155.2 MB. Free memory was 108.3 MB in the beginning and 135.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1249.10 ms. Allocated memory is still 155.2 MB. Free memory was 135.9 MB in the beginning and 91.7 MB in the end (delta: 44.2 MB). Peak memory consumption was 67.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25342.00 ms. Allocated memory was 155.2 MB in the beginning and 576.7 MB in the end (delta: 421.5 MB). Free memory was 91.2 MB in the beginning and 247.1 MB in the end (delta: -155.9 MB). Peak memory consumption was 265.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L51] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=141, cleanupTimeShifts=4, head={182:165}, methaneLevelCritical=147, pumpRunning=138, systemActive=137, waterLevel=141] [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=138, systemActive=137, waterLevel=141] [L631] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=137, waterLevel=141] [L632] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=165, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=141] [L843] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=147, pumpRunning=0, systemActive=1, waterLevel=1] [L844] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=165, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L133] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L137] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L139] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L181] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L184] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L185] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L139] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L139] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L141] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L143] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L144] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L560] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L561] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L562] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L567] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L569] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L575] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L577] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L579] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L579] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L585] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L587] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L595] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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, tmp___2=0, waterLevel=2] [L597] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L601] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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___1=1, tmp___2=0, waterLevel=2] [L603] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L605] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L830] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L605] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L612] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L639] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L646] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L654] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L938] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L939] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L940] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L944] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L882] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L885] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L886] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L944] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L944] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L946] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L950] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L914] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L917] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L918] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L950] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L950] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L952] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L954] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L763] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L766] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L767] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L954] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L954] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L956] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L960] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L46] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 648 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 19.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1333 SDtfs, 2080 SDslu, 1510 SDs, 0 SdLazy, 3915 SolverSat, 716 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1157occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 355 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1026 NumberOfCodeBlocks, 1026 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 839 ConstructedInterpolants, 0 QuantifiedInterpolants, 371234 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...