/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:05:55,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:05:55,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:05:56,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:05:56,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:05:56,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:05:56,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:05:56,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:05:56,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:05:56,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:05:56,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:05:56,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:05:56,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:05:56,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:05:56,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:05:56,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:05:56,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:05:56,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:05:56,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:05:56,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:05:56,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:05:56,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:05:56,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:05:56,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:05:56,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:05:56,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:05:56,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:05:56,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:05:56,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:05:56,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:05:56,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:05:56,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:05:56,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:05:56,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:05:56,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:05:56,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:05:56,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:05:56,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:05:56,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:05:56,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:05:56,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:05:56,063 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 [2020-08-22 16:05:56,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:05:56,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:05:56,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:05:56,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:05:56,113 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:05:56,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:05:56,114 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:05:56,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:05:56,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:05:56,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:05:56,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:05:56,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:05:56,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:05:56,115 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:05:56,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:05:56,115 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:05:56,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:05:56,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:05:56,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:05:56,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:05:56,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:05:56,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:05:56,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:05:56,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:05:56,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:05:56,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:05:56,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:05:56,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:05:56,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:05:56,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:05:56,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:05:56,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:05:56,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:05:56,451 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:05:56,451 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:05:56,452 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-08-22 16:05:56,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0126846/28e3931a7b5c47baa25f291c7a0f2523/FLAG389fc9a60 [2020-08-22 16:05:57,044 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:05:57,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-08-22 16:05:57,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0126846/28e3931a7b5c47baa25f291c7a0f2523/FLAG389fc9a60 [2020-08-22 16:05:57,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0126846/28e3931a7b5c47baa25f291c7a0f2523 [2020-08-22 16:05:57,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:05:57,355 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:05:57,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:05:57,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:05:57,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:05:57,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:05:57" (1/1) ... [2020-08-22 16:05:57,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415d1520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57, skipping insertion in model container [2020-08-22 16:05:57,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:05:57" (1/1) ... [2020-08-22 16:05:57,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:05:57,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:05:57,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:05:57,845 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:05:57,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:05:57,964 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:05:57,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57 WrapperNode [2020-08-22 16:05:57,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:05:57,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:05:57,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:05:57,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:05:57,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57" (1/1) ... [2020-08-22 16:05:57,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57" (1/1) ... [2020-08-22 16:05:57,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57" (1/1) ... [2020-08-22 16:05:58,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57" (1/1) ... [2020-08-22 16:05:58,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57" (1/1) ... [2020-08-22 16:05:58,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57" (1/1) ... [2020-08-22 16:05:58,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57" (1/1) ... [2020-08-22 16:05:58,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:05:58,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:05:58,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:05:58,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:05:58,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57" (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 [2020-08-22 16:05:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:05:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:05:58,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 16:05:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 16:05:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 16:05:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 16:05:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 16:05:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 16:05:58,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:05:58,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 16:05:58,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 16:05:58,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 16:05:58,154 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 16:05:58,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 16:05:58,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 16:05:58,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 16:05:58,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 16:05:58,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 16:05:58,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 16:05:58,156 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 16:05:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 16:05:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-08-22 16:05:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 16:05:58,157 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 16:05:58,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 16:05:58,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 16:05:58,158 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 16:05:58,159 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 16:05:58,159 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 16:05:58,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 16:05:58,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 16:05:58,159 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 16:05:58,160 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 16:05:58,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 16:05:58,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 16:05:58,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 16:05:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:05:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:05:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 16:05:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 16:05:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 16:05:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 16:05:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 16:05:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 16:05:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 16:05:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 16:05:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 16:05:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 16:05:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 16:05:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 16:05:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 16:05:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 16:05:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 16:05:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 16:05:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 16:05:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 16:05:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:05:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 16:05:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 16:05:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 16:05:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 16:05:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 16:05:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 16:05:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 16:05:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:05:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 16:05:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 16:05:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:05:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 16:05:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 16:05:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:05:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 16:05:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 16:05:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 16:05:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 16:05:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 16:05:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 16:05:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 16:05:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 16:05:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 16:05:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 16:05:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-08-22 16:05:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 16:05:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:05:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 16:05:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:05:59,329 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:05:59,329 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 16:05:59,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:05:59 BoogieIcfgContainer [2020-08-22 16:05:59,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:05:59,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:05:59,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:05:59,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:05:59,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:05:57" (1/3) ... [2020-08-22 16:05:59,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124767d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:05:59, skipping insertion in model container [2020-08-22 16:05:59,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:05:57" (2/3) ... [2020-08-22 16:05:59,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124767d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:05:59, skipping insertion in model container [2020-08-22 16:05:59,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:05:59" (3/3) ... [2020-08-22 16:05:59,343 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-08-22 16:05:59,354 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:05:59,362 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:05:59,375 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:05:59,396 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:05:59,396 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:05:59,397 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:05:59,397 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:05:59,397 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:05:59,397 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:05:59,397 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:05:59,398 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:05:59,419 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-08-22 16:05:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 16:05:59,429 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:05:59,430 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] [2020-08-22 16:05:59,430 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:05:59,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:05:59,436 INFO L82 PathProgramCache]: Analyzing trace with hash 789577792, now seen corresponding path program 1 times [2020-08-22 16:05:59,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:05:59,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909355088] [2020-08-22 16:05:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:05:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:00,144 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:06:00,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:06:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:00,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:06:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:00,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:06:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:00,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:06:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:06:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:00,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 16:06:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:00,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 16:06:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:00,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 16:06:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:00,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:06:00,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909355088] [2020-08-22 16:06:00,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:06:00,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 16:06:00,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755688004] [2020-08-22 16:06:00,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:06:00,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:06:00,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:06:00,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 16:06:00,282 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 3 states. [2020-08-22 16:06:01,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:06:01,261 INFO L93 Difference]: Finished difference Result 231 states and 307 transitions. [2020-08-22 16:06:01,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:06:01,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-22 16:06:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:06:01,277 INFO L225 Difference]: With dead ends: 231 [2020-08-22 16:06:01,278 INFO L226 Difference]: Without dead ends: 126 [2020-08-22 16:06:01,282 INFO L675 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 [2020-08-22 16:06:01,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-08-22 16:06:01,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 96. [2020-08-22 16:06:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-08-22 16:06:01,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-08-22 16:06:01,365 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 52 [2020-08-22 16:06:01,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:06:01,366 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-08-22 16:06:01,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:06:01,366 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-08-22 16:06:01,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 16:06:01,370 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:06:01,370 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] [2020-08-22 16:06:01,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:06:01,370 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:06:01,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:06:01,371 INFO L82 PathProgramCache]: Analyzing trace with hash 86425602, now seen corresponding path program 1 times [2020-08-22 16:06:01,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:06:01,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330444433] [2020-08-22 16:06:01,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:06:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:01,712 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:06:01,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:06:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:01,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:06:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:01,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:06:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:01,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:06:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:01,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:06:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:01,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 16:06:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:01,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 16:06:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:01,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 16:06:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:06:01,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330444433] [2020-08-22 16:06:01,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:06:01,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:06:01,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392875295] [2020-08-22 16:06:01,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 16:06:01,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:06:01,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 16:06:01,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 16:06:01,786 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-08-22 16:06:02,186 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 16:06:02,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:06:02,734 INFO L93 Difference]: Finished difference Result 155 states and 188 transitions. [2020-08-22 16:06:02,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:06:02,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-22 16:06:02,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:06:02,737 INFO L225 Difference]: With dead ends: 155 [2020-08-22 16:06:02,737 INFO L226 Difference]: Without dead ends: 110 [2020-08-22 16:06:02,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:06:02,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-08-22 16:06:02,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87. [2020-08-22 16:06:02,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-22 16:06:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2020-08-22 16:06:02,799 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 53 [2020-08-22 16:06:02,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:06:02,799 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2020-08-22 16:06:02,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 16:06:02,800 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2020-08-22 16:06:02,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 16:06:02,811 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:06:02,811 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] [2020-08-22 16:06:02,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:06:02,812 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:06:02,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:06:02,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1920799428, now seen corresponding path program 1 times [2020-08-22 16:06:02,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:06:02,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523731802] [2020-08-22 16:06:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:06:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:03,196 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:06:03,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:06:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:03,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:06:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:03,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:06:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:03,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:06:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:03,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:06:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:03,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 16:06:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:03,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 16:06:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 16:06:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:06:03,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523731802] [2020-08-22 16:06:03,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:06:03,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 16:06:03,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992453944] [2020-08-22 16:06:03,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:06:03,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:06:03,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:06:03,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:06:03,305 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 8 states. [2020-08-22 16:06:03,652 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 16:06:03,995 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:06:04,248 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:06:04,522 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:06:05,191 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 16:06:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:06:06,271 INFO L93 Difference]: Finished difference Result 311 states and 384 transitions. [2020-08-22 16:06:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 16:06:06,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-22 16:06:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:06:06,276 INFO L225 Difference]: With dead ends: 311 [2020-08-22 16:06:06,276 INFO L226 Difference]: Without dead ends: 248 [2020-08-22 16:06:06,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-22 16:06:06,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-08-22 16:06:06,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 186. [2020-08-22 16:06:06,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-08-22 16:06:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 221 transitions. [2020-08-22 16:06:06,344 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 221 transitions. Word has length 57 [2020-08-22 16:06:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:06:06,345 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 221 transitions. [2020-08-22 16:06:06,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:06:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 221 transitions. [2020-08-22 16:06:06,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 16:06:06,346 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:06:06,347 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] [2020-08-22 16:06:06,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 16:06:06,347 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:06:06,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:06:06,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1032165772, now seen corresponding path program 1 times [2020-08-22 16:06:06,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:06:06,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108484608] [2020-08-22 16:06:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:06:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,654 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:06:06,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:06:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:06:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:06:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:06:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:06:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-22 16:06:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 16:06:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 16:06:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-22 16:06:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:06:06,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108484608] [2020-08-22 16:06:06,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:06:06,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:06:06,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452857256] [2020-08-22 16:06:06,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 16:06:06,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:06:06,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 16:06:06,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:06:06,742 INFO L87 Difference]: Start difference. First operand 186 states and 221 transitions. Second operand 7 states. [2020-08-22 16:06:07,113 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 16:06:08,076 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:06:08,350 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:06:08,595 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 16:06:08,848 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 16:06:09,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:06:09,127 INFO L93 Difference]: Finished difference Result 524 states and 668 transitions. [2020-08-22 16:06:09,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 16:06:09,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-08-22 16:06:09,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:06:09,141 INFO L225 Difference]: With dead ends: 524 [2020-08-22 16:06:09,141 INFO L226 Difference]: Without dead ends: 362 [2020-08-22 16:06:09,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-08-22 16:06:09,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-08-22 16:06:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2020-08-22 16:06:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-08-22 16:06:09,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 417 transitions. [2020-08-22 16:06:09,230 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 417 transitions. Word has length 60 [2020-08-22 16:06:09,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:06:09,230 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 417 transitions. [2020-08-22 16:06:09,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 16:06:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 417 transitions. [2020-08-22 16:06:09,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 16:06:09,233 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:06:09,233 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] [2020-08-22 16:06:09,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:06:09,234 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:06:09,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:06:09,234 INFO L82 PathProgramCache]: Analyzing trace with hash 2086246822, now seen corresponding path program 1 times [2020-08-22 16:06:09,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:06:09,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010588431] [2020-08-22 16:06:09,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:06:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,499 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 16:06:09,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:06:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 16:06:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:06:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 16:06:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 16:06:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 16:06:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 16:06:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 16:06:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 16:06:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 16:06:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:06:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:06:09,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010588431] [2020-08-22 16:06:09,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:06:09,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 16:06:09,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819936323] [2020-08-22 16:06:09,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:06:09,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:06:09,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:06:09,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:06:09,591 INFO L87 Difference]: Start difference. First operand 341 states and 417 transitions. Second operand 5 states. [2020-08-22 16:06:09,878 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 16:06:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:06:10,416 INFO L93 Difference]: Finished difference Result 586 states and 736 transitions. [2020-08-22 16:06:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 16:06:10,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-08-22 16:06:10,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:06:10,424 INFO L225 Difference]: With dead ends: 586 [2020-08-22 16:06:10,424 INFO L226 Difference]: Without dead ends: 308 [2020-08-22 16:06:10,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:06:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-08-22 16:06:10,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 295. [2020-08-22 16:06:10,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-08-22 16:06:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 346 transitions. [2020-08-22 16:06:10,477 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 346 transitions. Word has length 64 [2020-08-22 16:06:10,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:06:10,478 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 346 transitions. [2020-08-22 16:06:10,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:06:10,478 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 346 transitions. [2020-08-22 16:06:10,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 16:06:10,480 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:06:10,480 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] [2020-08-22 16:06:10,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 16:06:10,480 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:06:10,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:06:10,481 INFO L82 PathProgramCache]: Analyzing trace with hash -68424058, now seen corresponding path program 1 times [2020-08-22 16:06:10,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:06:10,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132798476] [2020-08-22 16:06:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:06:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:06:10,531 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:06:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:06:10,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:06:10,647 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-08-22 16:06:10,647 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 16:06:10,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 16:06:10,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:06:10 BoogieIcfgContainer [2020-08-22 16:06:10,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:06:10,778 INFO L168 Benchmark]: Toolchain (without parser) took 13422.71 ms. Allocated memory was 147.8 MB in the beginning and 457.7 MB in the end (delta: 309.9 MB). Free memory was 103.2 MB in the beginning and 249.8 MB in the end (delta: -146.6 MB). Peak memory consumption was 163.3 MB. Max. memory is 7.1 GB. [2020-08-22 16:06:10,779 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 16:06:10,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.04 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 103.0 MB in the beginning and 173.4 MB in the end (delta: -70.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:06:10,782 INFO L168 Benchmark]: Boogie Preprocessor took 105.08 ms. Allocated memory is still 205.0 MB. Free memory was 173.4 MB in the beginning and 169.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-08-22 16:06:10,785 INFO L168 Benchmark]: RCFGBuilder took 1264.63 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 169.1 MB in the beginning and 196.5 MB in the end (delta: -27.4 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2020-08-22 16:06:10,786 INFO L168 Benchmark]: TraceAbstraction took 11439.26 ms. Allocated memory was 235.4 MB in the beginning and 457.7 MB in the end (delta: 222.3 MB). Free memory was 195.1 MB in the beginning and 249.8 MB in the end (delta: -54.7 MB). Peak memory consumption was 167.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:06:10,796 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 609.04 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 103.0 MB in the beginning and 173.4 MB in the end (delta: -70.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.08 ms. Allocated memory is still 205.0 MB. Free memory was 173.4 MB in the beginning and 169.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1264.63 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 169.1 MB in the beginning and 196.5 MB in the end (delta: -27.4 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11439.26 ms. Allocated memory was 235.4 MB in the beginning and 457.7 MB in the end (delta: 222.3 MB). Free memory was 195.1 MB in the beginning and 249.8 MB in the end (delta: -54.7 MB). Peak memory consumption was 167.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] int retValue_acc ; [L160] 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] [L164] 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] [L165] 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] [L166] 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] [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] 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] [L166] 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] [L166] tmp = valid_product() [L168] 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] [L170] 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] [L171] 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] [L150] 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] [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] 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] [L738] 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] [L740] 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] [L746] tmp = __VERIFIER_nondet_int() [L748] 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] [L750] 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] [L822] COND TRUE waterLevel < 2 [L823] 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] [L750] 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] [L756] tmp___0 = __VERIFIER_nondet_int() [L758] 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] [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \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=1, waterLevel=2] [L783] 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=1, waterLevel=2] [L595] 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=1, waterLevel=2] [L602] COND TRUE \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=1, waterLevel=2] [L604] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L610] 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=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] 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=1, waterLevel=2] [L51] 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=1, waterLevel=2] [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] 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=1, waterLevel=2] [L51] 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=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] 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=1, tmp=0, waterLevel=2] [L57] 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=1, waterLevel=2] [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] 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=1, waterLevel=2] [L57] 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=1, tmp=0, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L61] 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=1, waterLevel=2] [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] 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=1, waterLevel=2] [L61] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L67] 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=1, waterLevel=2] [L799] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 210 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 415 SDtfs, 629 SDslu, 307 SDs, 0 SdLazy, 1278 SolverSat, 361 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred 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: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 149 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 281 ConstructedInterpolants, 0 QuantifiedInterpolants, 78428 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...