/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_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 21:59:17,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 21:59:17,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 21:59:17,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 21:59:17,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 21:59:17,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 21:59:17,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 21:59:17,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 21:59:17,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 21:59:17,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 21:59:17,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 21:59:17,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 21:59:17,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 21:59:17,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 21:59:17,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 21:59:17,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 21:59:17,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 21:59:17,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 21:59:17,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 21:59:17,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 21:59:17,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 21:59:17,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 21:59:17,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 21:59:17,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 21:59:17,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 21:59:17,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 21:59:17,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 21:59:17,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 21:59:17,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 21:59:17,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 21:59:17,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 21:59:17,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 21:59:17,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 21:59:17,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 21:59:17,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 21:59:17,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 21:59:17,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 21:59:17,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 21:59:17,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 21:59:17,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 21:59:17,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 21:59:17,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 21:59:17,115 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 21:59:17,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 21:59:17,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 21:59:17,117 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 21:59:17,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 21:59:17,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 21:59:17,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 21:59:17,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 21:59:17,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 21:59:17,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 21:59:17,119 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 21:59:17,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 21:59:17,120 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 21:59:17,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 21:59:17,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 21:59:17,121 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 21:59:17,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 21:59:17,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 21:59:17,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 21:59:17,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 21:59:17,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 21:59:17,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 21:59:17,123 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 21:59:17,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 21:59:17,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 21:59:17,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 21:59:17,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 21:59:17,577 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 21:59:17,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2021-02-23 21:59:17,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d70dc698/ccbd880bdd0147fbb1dc5e00c07b7e4c/FLAG738858203 [2021-02-23 21:59:18,447 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 21:59:18,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2021-02-23 21:59:18,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d70dc698/ccbd880bdd0147fbb1dc5e00c07b7e4c/FLAG738858203 [2021-02-23 21:59:18,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d70dc698/ccbd880bdd0147fbb1dc5e00c07b7e4c [2021-02-23 21:59:18,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 21:59:18,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 21:59:18,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 21:59:18,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 21:59:18,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 21:59:18,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:59:18" (1/1) ... [2021-02-23 21:59:18,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29eeb978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:18, skipping insertion in model container [2021-02-23 21:59:18,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:59:18" (1/1) ... [2021-02-23 21:59:18,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 21:59:18,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 21:59:19,099 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_product08.cil.c[12695,12708] [2021-02-23 21:59:19,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:59:19,193 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 21:59:19,254 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_product08.cil.c[12695,12708] [2021-02-23 21:59:19,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:59:19,313 INFO L208 MainTranslator]: Completed translation [2021-02-23 21:59:19,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19 WrapperNode [2021-02-23 21:59:19,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 21:59:19,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 21:59:19,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 21:59:19,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 21:59:19,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19" (1/1) ... [2021-02-23 21:59:19,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19" (1/1) ... [2021-02-23 21:59:19,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19" (1/1) ... [2021-02-23 21:59:19,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19" (1/1) ... [2021-02-23 21:59:19,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19" (1/1) ... [2021-02-23 21:59:19,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19" (1/1) ... [2021-02-23 21:59:19,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19" (1/1) ... [2021-02-23 21:59:19,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 21:59:19,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 21:59:19,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 21:59:19,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 21:59:19,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 21:59:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 21:59:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 21:59:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 21:59:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 21:59:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:59:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 21:59:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 21:59:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 21:59:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 21:59:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 21:59:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 21:59:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 21:59:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 21:59:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 21:59:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 21:59:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 21:59:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 21:59:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 21:59:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 21:59:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 21:59:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 21:59:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 21:59:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 21:59:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 21:59:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 21:59:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 21:59:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 21:59:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 21:59:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 21:59:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 21:59:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 21:59:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 21:59:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 21:59:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 21:59:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 21:59:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 21:59:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 21:59:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 21:59:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 21:59:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 21:59:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 21:59:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 21:59:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 21:59:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 21:59:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 21:59:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 21:59:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 21:59:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 21:59:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:59:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 21:59:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 21:59:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 21:59:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 21:59:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 21:59:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 21:59:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 21:59:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 21:59:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 21:59:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 21:59:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 21:59:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 21:59:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 21:59:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 21:59:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 21:59:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 21:59:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 21:59:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 21:59:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 21:59:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 21:59:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 21:59:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 21:59:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 21:59:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 21:59:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 21:59:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 21:59:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 21:59:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 21:59:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 21:59:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 21:59:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 21:59:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 21:59:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 21:59:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 21:59:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 21:59:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 21:59:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 21:59:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 21:59:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 21:59:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 21:59:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 21:59:21,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 21:59:21,343 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 21:59:21,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:59:21 BoogieIcfgContainer [2021-02-23 21:59:21,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 21:59:21,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 21:59:21,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 21:59:21,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 21:59:21,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 09:59:18" (1/3) ... [2021-02-23 21:59:21,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d6e965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:59:21, skipping insertion in model container [2021-02-23 21:59:21,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:19" (2/3) ... [2021-02-23 21:59:21,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d6e965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:59:21, skipping insertion in model container [2021-02-23 21:59:21,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:59:21" (3/3) ... [2021-02-23 21:59:21,356 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2021-02-23 21:59:21,364 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 21:59:21,370 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 21:59:21,390 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 21:59:21,414 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 21:59:21,414 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 21:59:21,414 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 21:59:21,415 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 21:59:21,415 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 21:59:21,415 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 21:59:21,415 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 21:59:21,415 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 21:59:21,438 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2021-02-23 21:59:21,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 21:59:21,459 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:21,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:59:21,461 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:21,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:21,467 INFO L82 PathProgramCache]: Analyzing trace with hash -845316587, now seen corresponding path program 1 times [2021-02-23 21:59:21,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:21,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750646956] [2021-02-23 21:59:21,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:21,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:21,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:21,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:21,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:22,601 WARN L202 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:22,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:22,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:22,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:22,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:22,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:22,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:22,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:22,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:22,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:22,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:22,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:22,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:22,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:22,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:22,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:22,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 21:59:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:22,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:22,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:22,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:59:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:22,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:22,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:22,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 21:59:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:22,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:22,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:59:22,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750646956] [2021-02-23 21:59:22,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:22,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 21:59:22,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683142925] [2021-02-23 21:59:22,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 21:59:22,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:22,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 21:59:22,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:59:22,802 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 3 states. [2021-02-23 21:59:25,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:25,421 INFO L93 Difference]: Finished difference Result 442 states and 530 transitions. [2021-02-23 21:59:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 21:59:25,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 21:59:25,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:25,439 INFO L225 Difference]: With dead ends: 442 [2021-02-23 21:59:25,439 INFO L226 Difference]: Without dead ends: 281 [2021-02-23 21:59:25,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:59:25,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-02-23 21:59:25,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 239. [2021-02-23 21:59:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2021-02-23 21:59:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 259 transitions. [2021-02-23 21:59:25,594 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 259 transitions. Word has length 158 [2021-02-23 21:59:25,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:25,596 INFO L480 AbstractCegarLoop]: Abstraction has 239 states and 259 transitions. [2021-02-23 21:59:25,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 21:59:25,596 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 259 transitions. [2021-02-23 21:59:25,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 21:59:25,602 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:25,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 21:59:25,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 21:59:25,603 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:25,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:25,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1852035926, now seen corresponding path program 1 times [2021-02-23 21:59:25,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:25,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338303098] [2021-02-23 21:59:25,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:25,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:25,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:25,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:25,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:25,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:25,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:26,643 WARN L202 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:26,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:26,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:26,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:26,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:26,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:26,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:26,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:26,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:26,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:26,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:26,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:26,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:26,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:26,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:26,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:26,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 21:59:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:26,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:26,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:26,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 21:59:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:26,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:26,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:26,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 21:59:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:26,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:26,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:59:26,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338303098] [2021-02-23 21:59:26,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:26,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 21:59:26,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238442900] [2021-02-23 21:59:26,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 21:59:26,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:26,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 21:59:26,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 21:59:26,767 INFO L87 Difference]: Start difference. First operand 239 states and 259 transitions. Second operand 4 states. [2021-02-23 21:59:28,206 WARN L202 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:59:29,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:29,878 INFO L93 Difference]: Finished difference Result 348 states and 392 transitions. [2021-02-23 21:59:29,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 21:59:29,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 21:59:29,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:29,888 INFO L225 Difference]: With dead ends: 348 [2021-02-23 21:59:29,888 INFO L226 Difference]: Without dead ends: 264 [2021-02-23 21:59:29,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 21:59:29,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-02-23 21:59:29,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 229. [2021-02-23 21:59:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2021-02-23 21:59:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 246 transitions. [2021-02-23 21:59:29,985 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 246 transitions. Word has length 159 [2021-02-23 21:59:29,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:29,986 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 246 transitions. [2021-02-23 21:59:29,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 21:59:29,986 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 246 transitions. [2021-02-23 21:59:29,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 21:59:29,989 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:29,990 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 21:59:29,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 21:59:29,990 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:29,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:29,991 INFO L82 PathProgramCache]: Analyzing trace with hash 345072707, now seen corresponding path program 1 times [2021-02-23 21:59:29,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:29,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897182287] [2021-02-23 21:59:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:30,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:30,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:30,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:30,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:30,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:30,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:30,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:30,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:30,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:30,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:59:30,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:30,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:30,969 WARN L202 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:30,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:31,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:31,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:31,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:31,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:31,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:31,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:31,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:31,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:59:31,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:59:31,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:31,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:31,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 21:59:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:31,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:31,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 21:59:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:31,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:31,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 21:59:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:31,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:31,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 21:59:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:31,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:31,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:59:31,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897182287] [2021-02-23 21:59:31,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:31,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 21:59:31,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838919674] [2021-02-23 21:59:31,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 21:59:31,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:31,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 21:59:31,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 21:59:31,192 INFO L87 Difference]: Start difference. First operand 229 states and 246 transitions. Second operand 10 states. [2021-02-23 21:59:32,528 WARN L202 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:33,487 WARN L202 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:59:34,383 WARN L202 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:59:35,269 WARN L202 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:36,165 WARN L202 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:37,048 WARN L202 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:39,104 WARN L202 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:59:43,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:43,623 INFO L93 Difference]: Finished difference Result 619 states and 724 transitions. [2021-02-23 21:59:43,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 21:59:43,624 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 21:59:43,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:43,630 INFO L225 Difference]: With dead ends: 619 [2021-02-23 21:59:43,630 INFO L226 Difference]: Without dead ends: 505 [2021-02-23 21:59:43,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 21:59:43,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-02-23 21:59:43,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 414. [2021-02-23 21:59:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2021-02-23 21:59:43,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 463 transitions. [2021-02-23 21:59:43,841 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 463 transitions. Word has length 172 [2021-02-23 21:59:43,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:43,842 INFO L480 AbstractCegarLoop]: Abstraction has 414 states and 463 transitions. [2021-02-23 21:59:43,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 21:59:43,843 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 463 transitions. [2021-02-23 21:59:43,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 21:59:43,846 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:43,846 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 21:59:43,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 21:59:43,847 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:43,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:43,847 INFO L82 PathProgramCache]: Analyzing trace with hash -2043508278, now seen corresponding path program 1 times [2021-02-23 21:59:43,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:43,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276664096] [2021-02-23 21:59:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:43,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:43,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:43,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:43,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:43,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:43,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:43,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:43,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:43,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:43,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:43,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:43,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:43,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:43,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:43,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:43,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,775 WARN L202 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:44,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:44,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:59:44,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:44,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:44,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:44,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:44,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 21:59:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:44,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 21:59:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:44,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 21:59:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:44,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:44,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:44,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 21:59:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:44,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:44,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:44,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:59:44,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276664096] [2021-02-23 21:59:44,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:44,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 21:59:45,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901124872] [2021-02-23 21:59:45,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 21:59:45,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:45,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 21:59:45,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 21:59:45,002 INFO L87 Difference]: Start difference. First operand 414 states and 463 transitions. Second operand 9 states. [2021-02-23 21:59:46,318 WARN L202 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:49,922 WARN L202 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:50,907 WARN L202 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:51,866 WARN L202 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:52,833 WARN L202 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:53,690 WARN L202 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:54,553 WARN L202 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:55,407 WARN L202 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:57,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:57,128 INFO L93 Difference]: Finished difference Result 1090 states and 1320 transitions. [2021-02-23 21:59:57,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 21:59:57,130 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 21:59:57,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:57,138 INFO L225 Difference]: With dead ends: 1090 [2021-02-23 21:59:57,138 INFO L226 Difference]: Without dead ends: 791 [2021-02-23 21:59:57,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 21:59:57,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-02-23 21:59:57,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 692. [2021-02-23 21:59:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2021-02-23 21:59:57,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 798 transitions. [2021-02-23 21:59:57,490 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 798 transitions. Word has length 177 [2021-02-23 21:59:57,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:57,491 INFO L480 AbstractCegarLoop]: Abstraction has 692 states and 798 transitions. [2021-02-23 21:59:57,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 21:59:57,491 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 798 transitions. [2021-02-23 21:59:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 21:59:57,496 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:57,496 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 21:59:57,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 21:59:57,497 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:57,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:57,498 INFO L82 PathProgramCache]: Analyzing trace with hash 714541325, now seen corresponding path program 1 times [2021-02-23 21:59:57,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:57,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551197929] [2021-02-23 21:59:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:57,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:57,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:57,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:57,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:57,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:57,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:57,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:57,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:57,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:57,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:57,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:57,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:57,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:57,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,352 WARN L202 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:58,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:58,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 21:59:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:58,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 21:59:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 21:59:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 21:59:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-23 21:59:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:58,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:58,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:58,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 21:59:58,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551197929] [2021-02-23 21:59:58,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:58,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 21:59:58,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604076869] [2021-02-23 21:59:58,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 21:59:58,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:58,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 21:59:58,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 21:59:58,509 INFO L87 Difference]: Start difference. First operand 692 states and 798 transitions. Second operand 6 states. [2021-02-23 21:59:59,727 WARN L202 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:00:02,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:02,064 INFO L93 Difference]: Finished difference Result 1209 states and 1450 transitions. [2021-02-23 22:00:02,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 22:00:02,070 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2021-02-23 22:00:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:02,074 INFO L225 Difference]: With dead ends: 1209 [2021-02-23 22:00:02,074 INFO L226 Difference]: Without dead ends: 632 [2021-02-23 22:00:02,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:00:02,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2021-02-23 22:00:02,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 555. [2021-02-23 22:00:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2021-02-23 22:00:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 606 transitions. [2021-02-23 22:00:02,354 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 606 transitions. Word has length 182 [2021-02-23 22:00:02,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:02,354 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 606 transitions. [2021-02-23 22:00:02,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 22:00:02,354 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 606 transitions. [2021-02-23 22:00:02,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 22:00:02,359 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:02,359 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 22:00:02,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 22:00:02,359 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:02,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:02,360 INFO L82 PathProgramCache]: Analyzing trace with hash -92564613, now seen corresponding path program 1 times [2021-02-23 22:00:02,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:02,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298483434] [2021-02-23 22:00:02,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:00:02,436 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:00:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:00:02,506 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:00:02,701 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:00:02,701 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:00:02,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 22:00:02,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:00:02 BoogieIcfgContainer [2021-02-23 22:00:02,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:00:02,913 INFO L168 Benchmark]: Toolchain (without parser) took 44206.72 ms. Allocated memory was 170.9 MB in the beginning and 458.2 MB in the end (delta: 287.3 MB). Free memory was 146.3 MB in the beginning and 300.1 MB in the end (delta: -153.7 MB). Peak memory consumption was 134.3 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:02,913 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 170.9 MB. Free memory is still 142.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:00:02,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.90 ms. Allocated memory is still 170.9 MB. Free memory was 145.1 MB in the beginning and 125.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:02,914 INFO L168 Benchmark]: Boogie Preprocessor took 95.46 ms. Allocated memory is still 170.9 MB. Free memory was 125.4 MB in the beginning and 121.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:02,915 INFO L168 Benchmark]: RCFGBuilder took 1934.60 ms. Allocated memory was 170.9 MB in the beginning and 219.2 MB in the end (delta: 48.2 MB). Free memory was 121.4 MB in the beginning and 152.4 MB in the end (delta: -31.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:02,915 INFO L168 Benchmark]: TraceAbstraction took 41563.21 ms. Allocated memory was 219.2 MB in the beginning and 458.2 MB in the end (delta: 239.1 MB). Free memory was 151.9 MB in the beginning and 300.1 MB in the end (delta: -148.2 MB). Peak memory consumption was 91.4 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:02,917 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 170.9 MB. Free memory is still 142.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 589.90 ms. Allocated memory is still 170.9 MB. Free memory was 145.1 MB in the beginning and 125.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 95.46 ms. Allocated memory is still 170.9 MB. Free memory was 125.4 MB in the beginning and 121.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1934.60 ms. Allocated memory was 170.9 MB in the beginning and 219.2 MB in the end (delta: 48.2 MB). Free memory was 121.4 MB in the beginning and 152.4 MB in the end (delta: -31.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 41563.21 ms. Allocated memory was 219.2 MB in the beginning and 458.2 MB in the end (delta: 239.1 MB). Free memory was 151.9 MB in the beginning and 300.1 MB in the end (delta: -148.2 MB). Peak memory consumption was 91.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 534]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=180, head={0:0}, methaneLevelCritical=146, pumpRunning=136, systemActive=135, waterLevel=141] [L450] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=180, head={0:0}, methaneLevelCritical=146, pumpRunning=136, systemActive=135, waterLevel=1] [L451] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=180, head={0:0}, methaneLevelCritical=0, pumpRunning=136, systemActive=135, waterLevel=1] [L615] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=180, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=135, waterLevel=1] [L616] int systemActive = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=180, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L809] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] 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] [L883] 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] [L887] 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] [L888] 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] [L889] 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] [L800] 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] [L803] 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] [L804] 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] [L889] 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] [L889] 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] [L891] 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] [L893] 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] [L894] 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] [L876] 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] [L544] 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] [L545] 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] [L546] 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] [L547] 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] [L548] 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] [L551] 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] [L553] 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] [L555] 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] [L561] 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] [L563] 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] [L565] 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] [L468] 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] [L469] 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] [L565] 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] [L571] 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] [L573] 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] [L581] 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] [L583] 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] [L589] 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] [L591] 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] [L593] 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] [L751] 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] [L758] 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] [L593] 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] [L600] 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] [L622] 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] [L629] 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] [L637] 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 ; 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] [L48] 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] [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] [L489] 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] [L492] 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] [L493] 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() 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] [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] [L521] 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] [L524] 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] [L525] 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() 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] [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] [L703] 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] [L706] 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] [L707] 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() 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] [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] [L534] 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 38 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 33.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1120 SDtfs, 1683 SDslu, 1592 SDs, 0 SdLazy, 3037 SolverSat, 594 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 18.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=692occurred 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: 1.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 344 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 1030 NumberOfCodeBlocks, 1030 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 843 ConstructedInterpolants, 0 QuantifiedInterpolants, 361723 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...