/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 12:58:11,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 12:58:11,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 12:58:11,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 12:58:11,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 12:58:11,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 12:58:11,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 12:58:11,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 12:58:11,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 12:58:11,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 12:58:11,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 12:58:11,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 12:58:11,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 12:58:11,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 12:58:11,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 12:58:11,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 12:58:11,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 12:58:11,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 12:58:11,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 12:58:11,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 12:58:11,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 12:58:11,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 12:58:11,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 12:58:11,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 12:58:11,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 12:58:11,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 12:58:11,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 12:58:11,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 12:58:11,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 12:58:11,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 12:58:11,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 12:58:11,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 12:58:11,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 12:58:11,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 12:58:11,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 12:58:11,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 12:58:11,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 12:58:11,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 12:58:11,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 12:58:11,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 12:58:11,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 12:58:11,823 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 12:58:11,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 12:58:11,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 12:58:11,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 12:58:11,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 12:58:11,879 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 12:58:11,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 12:58:11,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 12:58:11,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 12:58:11,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 12:58:11,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 12:58:11,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 12:58:11,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 12:58:11,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 12:58:11,882 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 12:58:11,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 12:58:11,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 12:58:11,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 12:58:11,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 12:58:11,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 12:58:11,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 12:58:11,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 12:58:11,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 12:58:11,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 12:58:11,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 12:58:11,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 12:58:11,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 12:58:11,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 12:58:11,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 12:58:11,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 12:58:12,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 12:58:12,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 12:58:12,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 12:58:12,313 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 12:58:12,315 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 12:58:12,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2021-02-23 12:58:12,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc736572c/5d934d596c4643b2ab975dc74690b314/FLAG76884d7de [2021-02-23 12:58:13,227 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 12:58:13,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2021-02-23 12:58:13,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc736572c/5d934d596c4643b2ab975dc74690b314/FLAG76884d7de [2021-02-23 12:58:13,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc736572c/5d934d596c4643b2ab975dc74690b314 [2021-02-23 12:58:13,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 12:58:13,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 12:58:13,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 12:58:13,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 12:58:13,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 12:58:13,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:58:13" (1/1) ... [2021-02-23 12:58:13,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5a8ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13, skipping insertion in model container [2021-02-23 12:58:13,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:58:13" (1/1) ... [2021-02-23 12:58:13,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 12:58:13,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 12:58:13,815 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_product52.cil.c[16932,16945] [2021-02-23 12:58:13,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:58:13,838 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 12:58:13,911 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_product52.cil.c[16932,16945] [2021-02-23 12:58:13,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:58:13,979 INFO L208 MainTranslator]: Completed translation [2021-02-23 12:58:13,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13 WrapperNode [2021-02-23 12:58:13,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 12:58:13,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 12:58:13,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 12:58:13,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 12:58:13,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13" (1/1) ... [2021-02-23 12:58:13,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13" (1/1) ... [2021-02-23 12:58:14,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13" (1/1) ... [2021-02-23 12:58:14,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13" (1/1) ... [2021-02-23 12:58:14,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13" (1/1) ... [2021-02-23 12:58:14,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13" (1/1) ... [2021-02-23 12:58:14,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13" (1/1) ... [2021-02-23 12:58:14,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 12:58:14,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 12:58:14,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 12:58:14,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 12:58:14,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13" (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 12:58:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 12:58:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 12:58:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 12:58:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 12:58:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:58:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 12:58:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 12:58:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 12:58:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 12:58:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 12:58:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 12:58:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 12:58:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 12:58:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 12:58:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 12:58:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 12:58:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 12:58:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 12:58:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 12:58:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 12:58:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 12:58:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 12:58:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 12:58:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 12:58:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 12:58:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 12:58:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 12:58:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 12:58:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 12:58:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 12:58:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 12:58:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 12:58:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 12:58:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 12:58:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 12:58:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 12:58:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 12:58:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 12:58:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 12:58:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 12:58:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 12:58:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 12:58:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 12:58:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 12:58:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 12:58:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 12:58:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 12:58:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 12:58:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 12:58:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 12:58:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 12:58:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 12:58:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 12:58:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:58:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 12:58:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 12:58:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 12:58:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 12:58:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 12:58:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 12:58:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 12:58:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 12:58:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 12:58:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 12:58:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 12:58:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 12:58:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 12:58:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 12:58:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 12:58:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 12:58:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 12:58:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 12:58:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 12:58:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 12:58:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 12:58:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 12:58:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 12:58:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 12:58:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 12:58:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 12:58:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 12:58:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 12:58:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 12:58:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 12:58:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 12:58:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 12:58:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 12:58:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 12:58:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 12:58:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 12:58:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 12:58:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 12:58:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 12:58:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 12:58:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 12:58:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 12:58:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 12:58:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 12:58:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 12:58:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 12:58:15,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 12:58:15,384 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 12:58:15,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:58:15 BoogieIcfgContainer [2021-02-23 12:58:15,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 12:58:15,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 12:58:15,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 12:58:15,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 12:58:15,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 12:58:13" (1/3) ... [2021-02-23 12:58:15,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c625afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:58:15, skipping insertion in model container [2021-02-23 12:58:15,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:58:13" (2/3) ... [2021-02-23 12:58:15,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c625afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:58:15, skipping insertion in model container [2021-02-23 12:58:15,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:58:15" (3/3) ... [2021-02-23 12:58:15,396 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2021-02-23 12:58:15,403 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 12:58:15,409 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 12:58:15,428 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 12:58:15,455 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 12:58:15,456 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 12:58:15,456 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 12:58:15,456 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 12:58:15,456 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 12:58:15,456 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 12:58:15,456 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 12:58:15,456 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 12:58:15,483 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2021-02-23 12:58:15,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 12:58:15,498 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:15,499 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] [2021-02-23 12:58:15,500 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:15,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:15,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1106516232, now seen corresponding path program 1 times [2021-02-23 12:58:15,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:15,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141313532] [2021-02-23 12:58:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:16,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,346 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:58:16,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:58:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:16,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:58:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:16,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:58:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:16,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:58:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:16,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:58:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:16,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-23 12:58:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:16,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:58:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:16,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:58:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:16,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:16,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:16,443 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 12:58:16,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141313532] [2021-02-23 12:58:16,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:58:16,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 12:58:16,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156653768] [2021-02-23 12:58:16,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 12:58:16,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:58:16,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 12:58:16,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:58:16,471 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 3 states. [2021-02-23 12:58:17,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:58:17,768 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2021-02-23 12:58:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 12:58:17,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-23 12:58:17,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:58:17,785 INFO L225 Difference]: With dead ends: 332 [2021-02-23 12:58:17,786 INFO L226 Difference]: Without dead ends: 179 [2021-02-23 12:58:17,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:58:17,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-02-23 12:58:17,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 144. [2021-02-23 12:58:17,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-02-23 12:58:17,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2021-02-23 12:58:17,896 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 52 [2021-02-23 12:58:17,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:58:17,896 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2021-02-23 12:58:17,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 12:58:17,896 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2021-02-23 12:58:17,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 12:58:17,900 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:17,900 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] [2021-02-23 12:58:17,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 12:58:17,901 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:17,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:17,902 INFO L82 PathProgramCache]: Analyzing trace with hash -333087500, now seen corresponding path program 1 times [2021-02-23 12:58:17,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:17,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153804540] [2021-02-23 12:58:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:18,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:18,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,370 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:58:18,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:58:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:18,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:58:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:18,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:58:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:18,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:58:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:18,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:58:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:18,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:58:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:18,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-23 12:58:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:18,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 12:58:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:18,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:18,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:18,442 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 12:58:18,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153804540] [2021-02-23 12:58:18,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:58:18,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 12:58:18,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95996504] [2021-02-23 12:58:18,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 12:58:18,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:58:18,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 12:58:18,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 12:58:18,446 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand 4 states. [2021-02-23 12:58:19,004 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:58:20,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:58:20,037 INFO L93 Difference]: Finished difference Result 255 states and 310 transitions. [2021-02-23 12:58:20,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 12:58:20,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 12:58:20,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:58:20,040 INFO L225 Difference]: With dead ends: 255 [2021-02-23 12:58:20,040 INFO L226 Difference]: Without dead ends: 163 [2021-02-23 12:58:20,042 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 12:58:20,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-02-23 12:58:20,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 135. [2021-02-23 12:58:20,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2021-02-23 12:58:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 157 transitions. [2021-02-23 12:58:20,098 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 157 transitions. Word has length 53 [2021-02-23 12:58:20,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:58:20,099 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 157 transitions. [2021-02-23 12:58:20,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 12:58:20,099 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 157 transitions. [2021-02-23 12:58:20,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-23 12:58:20,101 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:20,101 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] [2021-02-23 12:58:20,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 12:58:20,102 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:20,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:20,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1778333764, now seen corresponding path program 1 times [2021-02-23 12:58:20,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:20,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720275661] [2021-02-23 12:58:20,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:20,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:20,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:20,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:20,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:20,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:58:20,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:58:20,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:58:20,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:20,519 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:58:20,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:58:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:20,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:58:20,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:58:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:20,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:20,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:58:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:20,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:20,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:58:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:20,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:20,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:58:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:20,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:20,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:58:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:20,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:20,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:58:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:20,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:20,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-23 12:58:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:20,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:20,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:20,609 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 12:58:20,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720275661] [2021-02-23 12:58:20,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:58:20,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:58:20,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598214658] [2021-02-23 12:58:20,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:58:20,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:58:20,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:58:20,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:58:20,612 INFO L87 Difference]: Start difference. First operand 135 states and 157 transitions. Second operand 8 states. [2021-02-23 12:58:21,097 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:58:21,567 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:21,941 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:22,292 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:23,265 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:58:25,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:58:25,648 INFO L93 Difference]: Finished difference Result 466 states and 575 transitions. [2021-02-23 12:58:25,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 12:58:25,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2021-02-23 12:58:25,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:58:25,655 INFO L225 Difference]: With dead ends: 466 [2021-02-23 12:58:25,655 INFO L226 Difference]: Without dead ends: 355 [2021-02-23 12:58:25,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-23 12:58:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-02-23 12:58:25,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 290. [2021-02-23 12:58:25,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-02-23 12:58:25,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 349 transitions. [2021-02-23 12:58:25,758 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 349 transitions. Word has length 58 [2021-02-23 12:58:25,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:58:25,758 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 349 transitions. [2021-02-23 12:58:25,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:58:25,759 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 349 transitions. [2021-02-23 12:58:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-23 12:58:25,761 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:25,762 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] [2021-02-23 12:58:25,762 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 12:58:25,762 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:25,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:25,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1268293551, now seen corresponding path program 1 times [2021-02-23 12:58:25,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:25,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67826119] [2021-02-23 12:58:25,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:25,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:25,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:25,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:25,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:25,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:25,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:25,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:25,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:25,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:25,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:25,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:25,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:25,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:25,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:25,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:25,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:26,249 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:58:26,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:58:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:26,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:26,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:58:26,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:58:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:26,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:26,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:26,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:58:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:26,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:26,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:26,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:58:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:26,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:26,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:26,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:58:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:26,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:26,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:26,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:58:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:26,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:26,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:26,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-23 12:58:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:26,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:26,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:26,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-23 12:58:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:26,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:26,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:58:26,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 12:58:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:58:26,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:58:26,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:58:26,339 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 12:58:26,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67826119] [2021-02-23 12:58:26,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:58:26,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:58:26,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035957118] [2021-02-23 12:58:26,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:58:26,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:58:26,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:58:26,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:58:26,341 INFO L87 Difference]: Start difference. First operand 290 states and 349 transitions. Second operand 8 states. [2021-02-23 12:58:26,836 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:58:28,533 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:29,058 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:29,521 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:58:29,940 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:58:31,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:58:31,008 INFO L93 Difference]: Finished difference Result 893 states and 1167 transitions. [2021-02-23 12:58:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 12:58:31,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-23 12:58:31,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:58:31,017 INFO L225 Difference]: With dead ends: 893 [2021-02-23 12:58:31,017 INFO L226 Difference]: Without dead ends: 627 [2021-02-23 12:58:31,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-23 12:58:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-02-23 12:58:31,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 557. [2021-02-23 12:58:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2021-02-23 12:58:31,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 683 transitions. [2021-02-23 12:58:31,203 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 683 transitions. Word has length 63 [2021-02-23 12:58:31,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:58:31,204 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 683 transitions. [2021-02-23 12:58:31,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:58:31,204 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 683 transitions. [2021-02-23 12:58:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-23 12:58:31,208 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:58:31,208 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] [2021-02-23 12:58:31,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 12:58:31,208 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:58:31,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:58:31,209 INFO L82 PathProgramCache]: Analyzing trace with hash 893055895, now seen corresponding path program 1 times [2021-02-23 12:58:31,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:58:31,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198320298] [2021-02-23 12:58:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:58:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:58:31,293 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:58:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:58:31,365 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:58:31,466 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 12:58:31,466 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 12:58:31,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 12:58:31,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 12:58:31 BoogieIcfgContainer [2021-02-23 12:58:31,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 12:58:31,649 INFO L168 Benchmark]: Toolchain (without parser) took 18185.72 ms. Allocated memory was 153.1 MB in the beginning and 393.2 MB in the end (delta: 240.1 MB). Free memory was 126.5 MB in the beginning and 339.3 MB in the end (delta: -212.8 MB). Peak memory consumption was 237.0 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:31,649 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 153.1 MB. Free memory is still 134.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 12:58:31,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.66 ms. Allocated memory is still 153.1 MB. Free memory was 125.3 MB in the beginning and 130.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:31,651 INFO L168 Benchmark]: Boogie Preprocessor took 112.07 ms. Allocated memory is still 153.1 MB. Free memory was 130.8 MB in the beginning and 127.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:31,651 INFO L168 Benchmark]: RCFGBuilder took 1289.89 ms. Allocated memory is still 153.1 MB. Free memory was 126.6 MB in the beginning and 78.1 MB in the end (delta: 48.5 MB). Peak memory consumption was 51.1 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:31,652 INFO L168 Benchmark]: TraceAbstraction took 16257.96 ms. Allocated memory was 153.1 MB in the beginning and 393.2 MB in the end (delta: 240.1 MB). Free memory was 77.6 MB in the beginning and 339.3 MB in the end (delta: -261.7 MB). Peak memory consumption was 187.1 MB. Max. memory is 8.0 GB. [2021-02-23 12:58:31,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 153.1 MB. Free memory is still 134.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 503.66 ms. Allocated memory is still 153.1 MB. Free memory was 125.3 MB in the beginning and 130.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 112.07 ms. Allocated memory is still 153.1 MB. Free memory was 130.8 MB in the beginning and 127.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1289.89 ms. Allocated memory is still 153.1 MB. Free memory was 126.6 MB in the beginning and 78.1 MB in the end (delta: 48.5 MB). Peak memory consumption was 51.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16257.96 ms. Allocated memory was 153.1 MB in the beginning and 393.2 MB in the end (delta: 240.1 MB). Free memory was 77.6 MB in the beginning and 339.3 MB in the end (delta: -261.7 MB). Peak memory consumption was 187.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 855]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L358] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L561] int pumpRunning = 0; [L562] int systemActive = 1; [L898] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=169, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] 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] [L976] 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] [L977] 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] [L978] 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] [L889] int retValue_acc ; [L892] retValue_acc = 1 [L893] 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] [L978] 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] [L978] tmp = valid_product() [L980] 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] [L982] 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] [L983] 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] [L965] 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] [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] 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] [L792] 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] [L794] 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] [L800] tmp = __VERIFIER_nondet_int() [L802] 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] [L804] 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] [L104] COND TRUE waterLevel < 2 [L105] 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] [L804] 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] [L810] tmp___0 = __VERIFIER_nondet_int() [L812] 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] [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L828] tmp___1 = __VERIFIER_nondet_int() [L830] 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] [L832] 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] [L761] 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] [L768] 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] [L832] 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] [L839] 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] [L568] 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] [L575] 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] [L583] 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] [L47] int tmp ; [L48] int tmp___0 ; [L49] 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] [L53] 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] [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] 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] [L53] 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] [L53] tmp = isMethaneLevelCritical() [L55] 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] [L59] 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] [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] 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] [L59] 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] [L59] tmp___0 = getWaterLevel() [L61] 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] [L63] 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] [L675] int retValue_acc ; [L678] retValue_acc = pumpRunning [L679] 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] [L63] 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] [L63] tmp___1 = isPumpRunning() [L65] 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] [L69] 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] [L855] 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 43 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 546 SDtfs, 876 SDslu, 384 SDs, 0 SdLazy, 2095 SolverSat, 519 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=557occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 198 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 66054 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...