/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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:01:56,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:01:56,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:01:56,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 22:01:56,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:01:56,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:01:56,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:01:56,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:01:56,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:01:56,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:01:56,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:01:56,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:01:56,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:01:56,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:01:56,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:01:56,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:01:56,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:01:56,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:01:56,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:01:56,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:01:56,184 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 22:01:56,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:01:56,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:01:56,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:01:56,199 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:01:56,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:01:56,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:01:56,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:01:56,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:01:56,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:01:56,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:01:56,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:01:56,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:01:56,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:01:56,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:01:56,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:01:56,202 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:01:56,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:01:56,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:01:56,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:01:56,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:01:56,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:01:56,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:01:56,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:01:56,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:01:56,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:01:56,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:01:56,636 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:01:56,637 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:01:56,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2021-02-23 22:01:56,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/138ad77b7/8e969ed3cf06425292b7157f1f1a76da/FLAG8ad948ae8 [2021-02-23 22:01:57,455 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:01:57,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2021-02-23 22:01:57,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/138ad77b7/8e969ed3cf06425292b7157f1f1a76da/FLAG8ad948ae8 [2021-02-23 22:01:57,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/138ad77b7/8e969ed3cf06425292b7157f1f1a76da [2021-02-23 22:01:57,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:01:57,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:01:57,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:01:57,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:01:57,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:01:57,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:01:57" (1/1) ... [2021-02-23 22:01:57,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b376848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:57, skipping insertion in model container [2021-02-23 22:01:57,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:01:57" (1/1) ... [2021-02-23 22:01:57,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:01:57,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:01:58,206 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_product56.cil.c[18951,18964] [2021-02-23 22:01:58,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:01:58,223 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:01:58,343 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_product56.cil.c[18951,18964] [2021-02-23 22:01:58,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:01:58,411 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:01:58,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58 WrapperNode [2021-02-23 22:01:58,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:01:58,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:01:58,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:01:58,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:01:58,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58" (1/1) ... [2021-02-23 22:01:58,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58" (1/1) ... [2021-02-23 22:01:58,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58" (1/1) ... [2021-02-23 22:01:58,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58" (1/1) ... [2021-02-23 22:01:58,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58" (1/1) ... [2021-02-23 22:01:58,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58" (1/1) ... [2021-02-23 22:01:58,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58" (1/1) ... [2021-02-23 22:01:58,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:01:58,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:01:58,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:01:58,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:01:58,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58" (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 22:01:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:01:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:01:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 22:01:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:01:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 22:01:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 22:01:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 22:01:58,808 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 22:01:58,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:01:58,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 22:01:58,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 22:01:58,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 22:01:58,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 22:01:58,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 22:01:58,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 22:01:58,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 22:01:58,811 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 22:01:58,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 22:01:58,813 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 22:01:58,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:01:58,816 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 22:01:58,816 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 22:01:58,816 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 22:01:58,816 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 22:01:58,817 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 22:01:58,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 22:01:58,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 22:01:58,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 22:01:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 22:01:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 22:01:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 22:01:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-23 22:01:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 22:01:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 22:01:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 22:01:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 22:01:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 22:01:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 22:01:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 22:01:58,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 22:01:58,820 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 22:01:58,820 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 22:01:58,820 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 22:01:58,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 22:01:58,820 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:01:58,820 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:01:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:01:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:01:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 22:01:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 22:01:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 22:01:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 22:01:58,821 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 22:01:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 22:01:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 22:01:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 22:01:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 22:01:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 22:01:58,822 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 22:01:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 22:01:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 22:01:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 22:01:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:01:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 22:01:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 22:01:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 22:01:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 22:01:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 22:01:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:01:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 22:01:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 22:01:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:01:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 22:01:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 22:01:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:01:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 22:01:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 22:01:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 22:01:58,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 22:01:58,828 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 22:01:58,828 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 22:01:58,828 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 22:01:58,829 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 22:01:58,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:01:58,829 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 22:01:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 22:01:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 22:01:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 22:01:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 22:01:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 22:01:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 22:01:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 22:01:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 22:01:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 22:01:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 22:01:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 22:01:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 22:01:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-23 22:01:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 22:01:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:01:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:01:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:02:00,233 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:02:00,233 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 22:02:00,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:02:00 BoogieIcfgContainer [2021-02-23 22:02:00,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:02:00,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:02:00,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:02:00,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:02:00,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:01:57" (1/3) ... [2021-02-23 22:02:00,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4432a5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:02:00, skipping insertion in model container [2021-02-23 22:02:00,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:01:58" (2/3) ... [2021-02-23 22:02:00,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4432a5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:02:00, skipping insertion in model container [2021-02-23 22:02:00,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:02:00" (3/3) ... [2021-02-23 22:02:00,245 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2021-02-23 22:02:00,252 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:02:00,258 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:02:00,276 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:02:00,302 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:02:00,303 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:02:00,303 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:02:00,303 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:02:00,303 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:02:00,303 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:02:00,303 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:02:00,303 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:02:00,328 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2021-02-23 22:02:00,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 22:02:00,351 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:00,352 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 22:02:00,352 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:00,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:00,359 INFO L82 PathProgramCache]: Analyzing trace with hash 991173375, now seen corresponding path program 1 times [2021-02-23 22:02:00,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:00,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525942602] [2021-02-23 22:02:00,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:00,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:00,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:00,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:00,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:01,205 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:02:01,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:02:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:01,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:01,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:01,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:02:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:01,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:01,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:01,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:02:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:01,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:01,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:01,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:02:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:01,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:01,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:01,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:02:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:01,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:01,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:01,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 22:02:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:01,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:01,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:01,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 22:02:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:01,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:01,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:01,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 22:02:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:01,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:01,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:01,481 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 22:02:01,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525942602] [2021-02-23 22:02:01,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:02:01,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 22:02:01,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714480972] [2021-02-23 22:02:01,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 22:02:01,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:02:01,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 22:02:01,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:02:01,507 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 3 states. [2021-02-23 22:02:03,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:02:03,602 INFO L93 Difference]: Finished difference Result 582 states and 692 transitions. [2021-02-23 22:02:03,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 22:02:03,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 22:02:03,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:02:03,621 INFO L225 Difference]: With dead ends: 582 [2021-02-23 22:02:03,622 INFO L226 Difference]: Without dead ends: 353 [2021-02-23 22:02:03,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:02:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-02-23 22:02:03,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 307. [2021-02-23 22:02:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2021-02-23 22:02:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 337 transitions. [2021-02-23 22:02:03,838 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 337 transitions. Word has length 158 [2021-02-23 22:02:03,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:02:03,841 INFO L480 AbstractCegarLoop]: Abstraction has 307 states and 337 transitions. [2021-02-23 22:02:03,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 22:02:03,842 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 337 transitions. [2021-02-23 22:02:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 22:02:03,875 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:03,876 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 22:02:03,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:02:03,876 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:03,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:03,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1451108837, now seen corresponding path program 1 times [2021-02-23 22:02:03,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:03,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126159681] [2021-02-23 22:02:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:04,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:04,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,417 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:02:04,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:02:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:04,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:02:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:04,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:02:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:04,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:02:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:04,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:02:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:04,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 22:02:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:04,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 22:02:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:04,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 22:02:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:04,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:04,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:04,535 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 22:02:04,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126159681] [2021-02-23 22:02:04,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:02:04,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:02:04,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133300922] [2021-02-23 22:02:04,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:02:04,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:02:04,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:02:04,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:02:04,539 INFO L87 Difference]: Start difference. First operand 307 states and 337 transitions. Second operand 4 states. [2021-02-23 22:02:05,295 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:02:06,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:02:06,790 INFO L93 Difference]: Finished difference Result 488 states and 554 transitions. [2021-02-23 22:02:06,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 22:02:06,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 22:02:06,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:02:06,797 INFO L225 Difference]: With dead ends: 488 [2021-02-23 22:02:06,798 INFO L226 Difference]: Without dead ends: 336 [2021-02-23 22:02:06,800 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 22:02:06,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-02-23 22:02:06,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 297. [2021-02-23 22:02:06,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2021-02-23 22:02:06,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 324 transitions. [2021-02-23 22:02:06,924 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 324 transitions. Word has length 159 [2021-02-23 22:02:06,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:02:06,924 INFO L480 AbstractCegarLoop]: Abstraction has 297 states and 324 transitions. [2021-02-23 22:02:06,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:02:06,925 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 324 transitions. [2021-02-23 22:02:06,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 22:02:06,927 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:06,927 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] [2021-02-23 22:02:06,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:02:06,928 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:06,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:06,928 INFO L82 PathProgramCache]: Analyzing trace with hash -89040518, now seen corresponding path program 1 times [2021-02-23 22:02:06,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:06,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920943736] [2021-02-23 22:02:06,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:07,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:07,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:02:07,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,438 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:02:07,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:02:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:02:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:02:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:02:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:02:07,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:02:07,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:02:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 22:02:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:07,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 22:02:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 22:02:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 22:02:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:07,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:07,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:07,622 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 22:02:07,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920943736] [2021-02-23 22:02:07,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:02:07,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 22:02:07,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446040715] [2021-02-23 22:02:07,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 22:02:07,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:02:07,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 22:02:07,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 22:02:07,626 INFO L87 Difference]: Start difference. First operand 297 states and 324 transitions. Second operand 10 states. [2021-02-23 22:02:08,310 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:02:08,763 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:02:09,139 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 22:02:09,499 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:09,865 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:02:10,219 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:11,286 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:02:14,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:02:14,758 INFO L93 Difference]: Finished difference Result 831 states and 970 transitions. [2021-02-23 22:02:14,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 22:02:14,759 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 22:02:14,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:02:14,766 INFO L225 Difference]: With dead ends: 831 [2021-02-23 22:02:14,766 INFO L226 Difference]: Without dead ends: 649 [2021-02-23 22:02:14,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 22:02:14,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2021-02-23 22:02:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 550. [2021-02-23 22:02:15,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2021-02-23 22:02:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 619 transitions. [2021-02-23 22:02:15,039 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 619 transitions. Word has length 172 [2021-02-23 22:02:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:02:15,041 INFO L480 AbstractCegarLoop]: Abstraction has 550 states and 619 transitions. [2021-02-23 22:02:15,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 22:02:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 619 transitions. [2021-02-23 22:02:15,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 22:02:15,049 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:15,049 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 22:02:15,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 22:02:15,050 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:15,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:15,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1638600071, now seen corresponding path program 1 times [2021-02-23 22:02:15,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:15,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647713174] [2021-02-23 22:02:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:15,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:15,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:15,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:15,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:15,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:15,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:15,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,582 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:02:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:02:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:02:15,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:02:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:02:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:02:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:02:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 22:02:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 22:02:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 22:02:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:15,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:02:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 22:02:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:02:15,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:02:15,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:02:15,774 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 22:02:15,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647713174] [2021-02-23 22:02:15,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:02:15,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 22:02:15,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777614074] [2021-02-23 22:02:15,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:02:15,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:02:15,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:02:15,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:02:15,777 INFO L87 Difference]: Start difference. First operand 550 states and 619 transitions. Second operand 9 states. [2021-02-23 22:02:16,420 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:02:18,865 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:19,302 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:02:19,834 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:20,251 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:02:20,616 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:02:20,990 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:21,384 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:02:22,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:02:22,919 INFO L93 Difference]: Finished difference Result 1510 states and 1822 transitions. [2021-02-23 22:02:22,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 22:02:22,920 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 22:02:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:02:22,929 INFO L225 Difference]: With dead ends: 1510 [2021-02-23 22:02:22,930 INFO L226 Difference]: Without dead ends: 1075 [2021-02-23 22:02:22,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 22:02:22,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2021-02-23 22:02:23,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 968. [2021-02-23 22:02:23,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2021-02-23 22:02:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1116 transitions. [2021-02-23 22:02:23,342 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1116 transitions. Word has length 177 [2021-02-23 22:02:23,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:02:23,343 INFO L480 AbstractCegarLoop]: Abstraction has 968 states and 1116 transitions. [2021-02-23 22:02:23,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:02:23,343 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1116 transitions. [2021-02-23 22:02:23,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 22:02:23,349 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:02:23,349 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 22:02:23,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 22:02:23,350 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:02:23,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:02:23,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1651444693, now seen corresponding path program 1 times [2021-02-23 22:02:23,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:02:23,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618242421] [2021-02-23 22:02:23,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:02:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:02:23,439 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:02:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:02:23,516 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:02:23,746 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:02:23,746 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:02:23,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 22:02:24,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:02:24 BoogieIcfgContainer [2021-02-23 22:02:24,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:02:24,013 INFO L168 Benchmark]: Toolchain (without parser) took 26231.66 ms. Allocated memory was 165.7 MB in the beginning and 620.8 MB in the end (delta: 455.1 MB). Free memory was 140.4 MB in the beginning and 522.7 MB in the end (delta: -382.3 MB). Peak memory consumption was 376.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:02:24,014 INFO L168 Benchmark]: CDTParser took 1.19 ms. Allocated memory is still 165.7 MB. Free memory is still 138.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:02:24,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.50 ms. Allocated memory is still 165.7 MB. Free memory was 139.3 MB in the beginning and 117.0 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:02:24,015 INFO L168 Benchmark]: Boogie Preprocessor took 200.72 ms. Allocated memory is still 165.7 MB. Free memory was 117.0 MB in the beginning and 146.7 MB in the end (delta: -29.7 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:02:24,016 INFO L168 Benchmark]: RCFGBuilder took 1618.24 ms. Allocated memory was 165.7 MB in the beginning and 227.5 MB in the end (delta: 61.9 MB). Free memory was 146.7 MB in the beginning and 149.2 MB in the end (delta: -2.4 MB). Peak memory consumption was 61.5 MB. Max. memory is 8.0 GB. [2021-02-23 22:02:24,017 INFO L168 Benchmark]: TraceAbstraction took 23774.03 ms. Allocated memory was 227.5 MB in the beginning and 620.8 MB in the end (delta: 393.2 MB). Free memory was 148.6 MB in the beginning and 522.7 MB in the end (delta: -374.0 MB). Peak memory consumption was 321.2 MB. Max. memory is 8.0 GB. [2021-02-23 22:02:24,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19 ms. Allocated memory is still 165.7 MB. Free memory is still 138.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 620.50 ms. Allocated memory is still 165.7 MB. Free memory was 139.3 MB in the beginning and 117.0 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 200.72 ms. Allocated memory is still 165.7 MB. Free memory was 117.0 MB in the beginning and 146.7 MB in the end (delta: -29.7 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1618.24 ms. Allocated memory was 165.7 MB in the beginning and 227.5 MB in the end (delta: 61.9 MB). Free memory was 146.7 MB in the beginning and 149.2 MB in the end (delta: -2.4 MB). Peak memory consumption was 61.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23774.03 ms. Allocated memory was 227.5 MB in the beginning and 620.8 MB in the end (delta: 393.2 MB). Free memory was 148.6 MB in the beginning and 522.7 MB in the end (delta: -374.0 MB). Peak memory consumption was 321.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1015]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={182:166}, methaneLevelCritical=148, pumpRunning=136, systemActive=135, waterLevel=141] [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=136, systemActive=135, waterLevel=141] [L589] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=136, systemActive=135, waterLevel=1] [L590] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=136, systemActive=135, waterLevel=1] [L696] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=135, waterLevel=1] [L697] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=148, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] 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] [L124] 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] [L128] 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] [L129] 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] [L130] 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] [L538] 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] [L541] 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] [L542] 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] [L130] 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] [L130] 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] [L132] 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] [L134] 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] [L135] 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] [L114] 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] [L943] 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] [L944] 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] [L945] 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] [L946] 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] [L947] 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] [L950] 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] [L952] 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] [L954] 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] [L960] 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] [L962] 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] [L964] 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] [L607] 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] [L608] 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] [L964] 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] [L970] 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] [L972] 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] [L980] 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] [L982] 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] [L988] 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] [L990] 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] [L992] 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] [L922] 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] [L929] 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] [L992] 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] [L999] 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] [L703] 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] [L710] 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] [L718] 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] [L552] 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] [L553] 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] [L554] 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] [L558] 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] [L628] 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] [L631] 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] [L632] 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] [L558] 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] [L558] 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] [L560] 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] [L564] 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] [L660] 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] [L663] 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] [L664] 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] [L564] 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] [L564] 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] [L566] 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] [L568] 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] [L836] 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] [L839] 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] [L840] 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] [L568] 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] [L568] 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] [L570] 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] [L574] 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] [L1015] 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 44 procedures, 674 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 18.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1183 SDtfs, 1909 SDslu, 1541 SDs, 0 SdLazy, 3798 SolverSat, 676 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=968occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 291 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 848 NumberOfCodeBlocks, 848 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 662 ConstructedInterpolants, 0 QuantifiedInterpolants, 273767 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...