/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 12:57:10,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 12:57:10,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 12:57:10,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 12:57:10,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 12:57:10,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 12:57:10,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 12:57:10,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 12:57:10,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 12:57:10,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 12:57:10,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 12:57:10,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 12:57:10,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 12:57:10,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 12:57:10,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 12:57:10,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 12:57:10,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 12:57:10,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 12:57:10,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 12:57:10,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 12:57:10,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 12:57:10,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 12:57:10,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 12:57:10,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 12:57:10,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 12:57:10,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 12:57:10,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 12:57:10,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 12:57:10,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 12:57:10,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 12:57:10,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 12:57:10,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 12:57:10,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 12:57:10,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 12:57:10,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 12:57:10,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 12:57:10,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 12:57:10,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 12:57:10,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 12:57:10,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 12:57:10,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 12:57:10,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-23 12:57:11,019 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 12:57:11,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 12:57:11,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 12:57:11,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 12:57:11,025 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 12:57:11,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 12:57:11,025 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 12:57:11,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 12:57:11,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 12:57:11,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 12:57:11,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 12:57:11,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 12:57:11,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 12:57:11,028 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 12:57:11,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 12:57:11,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 12:57:11,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 12:57:11,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 12:57:11,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 12:57:11,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 12:57:11,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 12:57:11,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 12:57:11,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 12:57:11,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 12:57:11,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 12:57:11,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 12:57:11,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 12:57:11,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 12:57:11,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 12:57:11,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 12:57:11,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 12:57:11,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 12:57:11,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 12:57:11,456 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 12:57:11,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2021-02-23 12:57:11,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56186a11c/e47fbedaa2bc46cd89476a1004e45fa2/FLAG0779e2744 [2021-02-23 12:57:12,329 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 12:57:12,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2021-02-23 12:57:12,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56186a11c/e47fbedaa2bc46cd89476a1004e45fa2/FLAG0779e2744 [2021-02-23 12:57:12,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56186a11c/e47fbedaa2bc46cd89476a1004e45fa2 [2021-02-23 12:57:12,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 12:57:12,386 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 12:57:12,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 12:57:12,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 12:57:12,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 12:57:12,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:57:12" (1/1) ... [2021-02-23 12:57:12,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4704a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12, skipping insertion in model container [2021-02-23 12:57:12,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 12:57:12" (1/1) ... [2021-02-23 12:57:12,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 12:57:12,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 12:57:12,596 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_product16.cil.c[1281,1294] [2021-02-23 12:57:12,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:57:12,769 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 12:57:12,785 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_product16.cil.c[1281,1294] [2021-02-23 12:57:12,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 12:57:12,920 INFO L208 MainTranslator]: Completed translation [2021-02-23 12:57:12,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12 WrapperNode [2021-02-23 12:57:12,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 12:57:12,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 12:57:12,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 12:57:12,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 12:57:12,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12" (1/1) ... [2021-02-23 12:57:12,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12" (1/1) ... [2021-02-23 12:57:12,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12" (1/1) ... [2021-02-23 12:57:12,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12" (1/1) ... [2021-02-23 12:57:12,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12" (1/1) ... [2021-02-23 12:57:13,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12" (1/1) ... [2021-02-23 12:57:13,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12" (1/1) ... [2021-02-23 12:57:13,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 12:57:13,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 12:57:13,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 12:57:13,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 12:57:13,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 12:57:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 12:57:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 12:57:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 12:57:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 12:57:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 12:57:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 12:57:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 12:57:13,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 12:57:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 12:57:13,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 12:57:13,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 12:57:13,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 12:57:13,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 12:57:13,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 12:57:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 12:57:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 12:57:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 12:57:13,189 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 12:57:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 12:57:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 12:57:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2021-02-23 12:57:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 12:57:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 12:57:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 12:57:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 12:57:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 12:57:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 12:57:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 12:57:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 12:57:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 12:57:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 12:57:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 12:57:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 12:57:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 12:57:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 12:57:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 12:57:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 12:57:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 12:57:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:57:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 12:57:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 12:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 12:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 12:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 12:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 12:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 12:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 12:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 12:57:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 12:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 12:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 12:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 12:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 12:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 12:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 12:57:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 12:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 12:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 12:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 12:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 12:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 12:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 12:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 12:57:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 12:57:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 12:57:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 12:57:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 12:57:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 12:57:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 12:57:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 12:57:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 12:57:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 12:57:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 12:57:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 12:57:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 12:57:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 12:57:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 12:57:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 12:57:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 12:57:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 12:57:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 12:57:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 12:57:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 12:57:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 12:57:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-23 12:57:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 12:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2021-02-23 12:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 12:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 12:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 12:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 12:57:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 12:57:14,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 12:57:14,476 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 12:57:14,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:57:14 BoogieIcfgContainer [2021-02-23 12:57:14,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 12:57:14,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 12:57:14,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 12:57:14,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 12:57:14,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 12:57:12" (1/3) ... [2021-02-23 12:57:14,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186be393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:57:14, skipping insertion in model container [2021-02-23 12:57:14,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 12:57:12" (2/3) ... [2021-02-23 12:57:14,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186be393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 12:57:14, skipping insertion in model container [2021-02-23 12:57:14,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 12:57:14" (3/3) ... [2021-02-23 12:57:14,487 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2021-02-23 12:57:14,493 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 12:57:14,498 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 12:57:14,521 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 12:57:14,560 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 12:57:14,561 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 12:57:14,562 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 12:57:14,562 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 12:57:14,562 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 12:57:14,562 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 12:57:14,563 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 12:57:14,563 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 12:57:14,591 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2021-02-23 12:57:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-23 12:57:14,605 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:14,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 12:57:14,607 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:14,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:14,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1385035205, now seen corresponding path program 1 times [2021-02-23 12:57:14,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:14,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775745401] [2021-02-23 12:57:14,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:15,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,334 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:15,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:15,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:15,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:15,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:15,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:15,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-23 12:57:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:15,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:57:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:15,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:57:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:15,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:15,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:57:15,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775745401] [2021-02-23 12:57:15,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:15,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 12:57:15,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585565724] [2021-02-23 12:57:15,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 12:57:15,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:15,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 12:57:15,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:57:15,467 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2021-02-23 12:57:16,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:16,604 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2021-02-23 12:57:16,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 12:57:16,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-23 12:57:16,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:16,620 INFO L225 Difference]: With dead ends: 272 [2021-02-23 12:57:16,620 INFO L226 Difference]: Without dead ends: 148 [2021-02-23 12:57:16,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 12:57:16,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-02-23 12:57:16,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2021-02-23 12:57:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2021-02-23 12:57:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2021-02-23 12:57:16,720 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2021-02-23 12:57:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:16,720 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2021-02-23 12:57:16,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 12:57:16,721 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2021-02-23 12:57:16,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 12:57:16,724 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:16,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 12:57:16,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 12:57:16,725 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:16,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:16,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1944561897, now seen corresponding path program 1 times [2021-02-23 12:57:16,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:16,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687360198] [2021-02-23 12:57:16,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:16,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:16,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:16,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:16,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:16,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:16,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:17,069 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:17,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:17,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:17,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:17,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:17,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:17,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:17,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:17,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:17,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:17,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:17,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:17,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:17,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:17,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:17,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:17,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:57:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:17,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:17,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:17,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-23 12:57:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:17,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:17,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:17,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-23 12:57:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:17,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:17,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:17,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:57:17,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687360198] [2021-02-23 12:57:17,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:17,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 12:57:17,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690207429] [2021-02-23 12:57:17,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 12:57:17,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:17,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 12:57:17,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 12:57:17,166 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2021-02-23 12:57:17,765 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:57:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:18,525 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2021-02-23 12:57:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 12:57:18,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-23 12:57:18,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:18,529 INFO L225 Difference]: With dead ends: 195 [2021-02-23 12:57:18,529 INFO L226 Difference]: Without dead ends: 132 [2021-02-23 12:57:18,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 12:57:18,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-02-23 12:57:18,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2021-02-23 12:57:18,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-02-23 12:57:18,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2021-02-23 12:57:18,584 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2021-02-23 12:57:18,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:18,584 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2021-02-23 12:57:18,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 12:57:18,585 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2021-02-23 12:57:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-23 12:57:18,587 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:18,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 12:57:18,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 12:57:18,587 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:18,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:18,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1872416791, now seen corresponding path program 1 times [2021-02-23 12:57:18,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:18,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390029582] [2021-02-23 12:57:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:18,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:18,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:18,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:18,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:18,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:18,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:18,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:18,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:18,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:18,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:57:18,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:18,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:57:18,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:18,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 12:57:18,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:18,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:19,007 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:19,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:19,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:19,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:57:19,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:19,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:19,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:19,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:19,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:19,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:19,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:19,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:19,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:19,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:19,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:19,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:19,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 12:57:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:19,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:19,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:19,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-23 12:57:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:19,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:19,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:19,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-23 12:57:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:19,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:19,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:19,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:57:19,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390029582] [2021-02-23 12:57:19,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:19,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:57:19,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776596241] [2021-02-23 12:57:19,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:57:19,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:19,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:57:19,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:57:19,127 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2021-02-23 12:57:19,554 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:19,903 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:20,207 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:20,556 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:21,324 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 12:57:22,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:22,918 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2021-02-23 12:57:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 12:57:22,919 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2021-02-23 12:57:22,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:22,935 INFO L225 Difference]: With dead ends: 375 [2021-02-23 12:57:22,935 INFO L226 Difference]: Without dead ends: 293 [2021-02-23 12:57:22,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-23 12:57:22,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-02-23 12:57:23,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2021-02-23 12:57:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2021-02-23 12:57:23,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2021-02-23 12:57:23,077 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2021-02-23 12:57:23,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:23,078 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2021-02-23 12:57:23,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:57:23,078 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2021-02-23 12:57:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-23 12:57:23,085 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:23,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 12:57:23,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 12:57:23,086 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:23,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:23,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1720359680, now seen corresponding path program 1 times [2021-02-23 12:57:23,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:23,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615692368] [2021-02-23 12:57:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:23,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:23,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:23,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:23,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:23,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:23,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:23,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:23,545 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 12:57:23,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 12:57:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 12:57:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 12:57:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:23,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-23 12:57:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:23,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 12:57:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:23,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 12:57:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:23,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-23 12:57:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:23,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-23 12:57:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:23,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-23 12:57:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 12:57:23,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 12:57:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 12:57:23,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 12:57:23,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 12:57:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 12:57:23,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615692368] [2021-02-23 12:57:23,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 12:57:23,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 12:57:23,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776106542] [2021-02-23 12:57:23,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 12:57:23,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 12:57:23,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 12:57:23,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 12:57:23,656 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand 8 states. [2021-02-23 12:57:24,130 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:25,534 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:25,914 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:26,217 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 12:57:26,541 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 12:57:27,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 12:57:27,174 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2021-02-23 12:57:27,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 12:57:27,175 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-23 12:57:27,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 12:57:27,181 INFO L225 Difference]: With dead ends: 711 [2021-02-23 12:57:27,181 INFO L226 Difference]: Without dead ends: 503 [2021-02-23 12:57:27,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-23 12:57:27,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-02-23 12:57:27,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2021-02-23 12:57:27,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2021-02-23 12:57:27,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2021-02-23 12:57:27,340 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2021-02-23 12:57:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 12:57:27,341 INFO L480 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2021-02-23 12:57:27,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 12:57:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2021-02-23 12:57:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-23 12:57:27,344 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 12:57:27,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 12:57:27,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 12:57:27,345 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 12:57:27,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 12:57:27,345 INFO L82 PathProgramCache]: Analyzing trace with hash -560252890, now seen corresponding path program 1 times [2021-02-23 12:57:27,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 12:57:27,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075653754] [2021-02-23 12:57:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 12:57:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:57:27,430 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:57:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 12:57:27,532 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 12:57:27,612 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 12:57:27,612 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 12:57:27,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 12:57:27,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 12:57:27 BoogieIcfgContainer [2021-02-23 12:57:27,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 12:57:27,770 INFO L168 Benchmark]: Toolchain (without parser) took 15393.19 ms. Allocated memory was 151.0 MB in the beginning and 390.1 MB in the end (delta: 239.1 MB). Free memory was 126.1 MB in the beginning and 250.5 MB in the end (delta: -124.4 MB). Peak memory consumption was 116.1 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:27,771 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 218.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 12:57:27,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.78 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 103.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:27,772 INFO L168 Benchmark]: Boogie Preprocessor took 144.72 ms. Allocated memory is still 151.0 MB. Free memory was 103.8 MB in the beginning and 133.6 MB in the end (delta: -29.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:27,773 INFO L168 Benchmark]: RCFGBuilder took 1410.41 ms. Allocated memory is still 151.0 MB. Free memory was 133.1 MB in the beginning and 128.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 87.5 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:27,776 INFO L168 Benchmark]: TraceAbstraction took 13288.76 ms. Allocated memory was 151.0 MB in the beginning and 390.1 MB in the end (delta: 239.1 MB). Free memory was 127.9 MB in the beginning and 250.5 MB in the end (delta: -122.6 MB). Peak memory consumption was 117.0 MB. Max. memory is 8.0 GB. [2021-02-23 12:57:27,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 218.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 533.78 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 103.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 144.72 ms. Allocated memory is still 151.0 MB. Free memory was 103.8 MB in the beginning and 133.6 MB in the end (delta: -29.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1410.41 ms. Allocated memory is still 151.0 MB. Free memory was 133.1 MB in the beginning and 128.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 87.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13288.76 ms. Allocated memory was 151.0 MB in the beginning and 390.1 MB in the end (delta: 239.1 MB). Free memory was 127.9 MB in the beginning and 250.5 MB in the end (delta: -122.6 MB). Peak memory consumption was 117.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L51] int cleanupTimeShifts = 4; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=164, \old(methaneLevelCritical)=144, \old(pumpRunning)=133, \old(systemActive)=132, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] int retValue_acc ; [L133] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L137] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L139] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L139] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L143] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L144] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] 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] [L533] 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] [L535] 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] [L541] tmp = __VERIFIER_nondet_int() [L543] 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] [L545] 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] [L826] COND TRUE waterLevel < 2 [L827] 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] [L545] 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] [L551] tmp___0 = __VERIFIER_nondet_int() [L553] 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] [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___2)) [L569] tmp___1 = __VERIFIER_nondet_int() [L571] 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] [L573] 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] [L752] 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] [L759] 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] [L573] 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] [L580] 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] [L606] 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] [L613] 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] [L621] 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] [L889] int tmp ; [L890] int tmp___0 ; [L891] 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] [L895] 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] [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] 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] [L895] 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] [L895] tmp = isMethaneLevelCritical() [L897] 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] [L901] 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] [L879] int retValue_acc ; [L882] retValue_acc = waterLevel [L883] 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] [L901] 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] [L901] tmp___0 = getWaterLevel() [L903] 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] [L905] 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] [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] 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] [L905] 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] [L905] tmp___1 = isPumpRunning() [L907] 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] [L911] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L46] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 443 SDtfs, 645 SDslu, 347 SDs, 0 SdLazy, 1678 SolverSat, 433 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 66054 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...