/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 --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:02:43,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:02:43,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:02:43,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:02:43,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:02:43,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:02:43,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:02:43,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:02:43,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:02:43,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:02:43,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:02:43,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:02:43,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:02:43,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:02:43,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:02:43,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:02:43,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:02:43,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:02:43,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:02:43,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:02:43,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:02:43,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:02:43,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:02:43,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:02:43,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 21:02:43,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 21:02:43,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 21:02:43,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 21:02:43,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 21:02:43,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 21:02:43,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 21:02:43,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 21:02:43,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 21:02:43,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 21:02:43,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 21:02:43,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 21:02:43,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 21:02:43,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 21:02:43,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:02:43,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:02:43,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:02:43,941 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 [2020-07-19 21:02:43,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:02:43,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:02:43,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:02:43,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:02:43,956 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:02:43,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:02:43,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:02:43,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:02:43,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:02:43,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:02:43,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:02:43,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:02:43,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:02:43,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:02:43,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:02:43,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:02:43,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:02:43,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:02:43,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:02:43,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:02:43,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:02:43,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:02:43,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:02:43,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:02:43,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:02:43,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:02:43,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:02:43,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:02:43,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:02:43,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:02:44,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:02:44,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:02:44,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:02:44,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:02:44,255 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:02:44,256 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-07-19 21:02:44,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47392befb/b3fbfd39e39c4d93a5d8551418f351ff/FLAGe66e3cbc4 [2020-07-19 21:02:44,852 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:02:44,853 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-07-19 21:02:44,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47392befb/b3fbfd39e39c4d93a5d8551418f351ff/FLAGe66e3cbc4 [2020-07-19 21:02:45,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47392befb/b3fbfd39e39c4d93a5d8551418f351ff [2020-07-19 21:02:45,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:02:45,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:02:45,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:02:45,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:02:45,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:02:45,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:02:45" (1/1) ... [2020-07-19 21:02:45,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad45810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45, skipping insertion in model container [2020-07-19 21:02:45,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:02:45" (1/1) ... [2020-07-19 21:02:45,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:02:45,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:02:45,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:02:45,714 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:02:45,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:02:45,850 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:02:45,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45 WrapperNode [2020-07-19 21:02:45,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:02:45,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:02:45,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:02:45,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:02:45,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45" (1/1) ... [2020-07-19 21:02:45,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45" (1/1) ... [2020-07-19 21:02:45,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45" (1/1) ... [2020-07-19 21:02:45,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45" (1/1) ... [2020-07-19 21:02:45,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45" (1/1) ... [2020-07-19 21:02:45,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45" (1/1) ... [2020-07-19 21:02:45,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45" (1/1) ... [2020-07-19 21:02:45,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:02:45,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:02:45,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:02:45,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:02:45,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45" (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 [2020-07-19 21:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 21:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 21:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 21:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 21:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 21:02:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 21:02:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 21:02:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 21:02:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 21:02:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 21:02:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 21:02:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 21:02:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 21:02:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 21:02:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 21:02:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 21:02:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 21:02:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:02:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 21:02:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 21:02:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 21:02:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 21:02:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 21:02:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 21:02:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 21:02:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 21:02:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 21:02:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 21:02:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 21:02:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 21:02:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 21:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 21:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 21:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 21:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 21:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 21:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-19 21:02:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:02:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:02:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 21:02:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 21:02:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 21:02:46,020 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 21:02:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 21:02:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 21:02:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 21:02:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 21:02:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 21:02:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 21:02:46,021 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 21:02:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 21:02:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 21:02:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 21:02:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 21:02:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 21:02:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-19 21:02:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 21:02:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 21:02:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 21:02:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 21:02:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 21:02:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 21:02:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 21:02:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 21:02:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 21:02:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 21:02:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 21:02:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:02:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 21:02:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 21:02:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 21:02:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 21:02:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 21:02:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 21:02:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 21:02:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 21:02:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 21:02:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 21:02:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 21:02:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 21:02:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 21:02:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 21:02:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 21:02:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 21:02:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 21:02:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 21:02:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 21:02:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:02:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 21:02:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:02:47,046 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:02:47,047 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 21:02:47,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:02:47 BoogieIcfgContainer [2020-07-19 21:02:47,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:02:47,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:02:47,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:02:47,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:02:47,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:02:45" (1/3) ... [2020-07-19 21:02:47,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7825bc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:02:47, skipping insertion in model container [2020-07-19 21:02:47,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:02:45" (2/3) ... [2020-07-19 21:02:47,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7825bc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:02:47, skipping insertion in model container [2020-07-19 21:02:47,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:02:47" (3/3) ... [2020-07-19 21:02:47,063 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-07-19 21:02:47,073 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:02:47,083 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:02:47,096 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:02:47,129 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:02:47,129 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:02:47,129 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:02:47,129 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:02:47,129 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:02:47,130 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:02:47,130 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:02:47,130 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:02:47,150 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2020-07-19 21:02:47,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 21:02:47,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:02:47,159 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] [2020-07-19 21:02:47,159 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:02:47,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:02:47,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1806854140, now seen corresponding path program 1 times [2020-07-19 21:02:47,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:02:47,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278549099] [2020-07-19 21:02:47,175 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:02:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:47,830 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:02:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:02:47,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278549099] [2020-07-19 21:02:47,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:02:47,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 21:02:47,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951508541] [2020-07-19 21:02:47,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:02:47,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:02:47,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:02:47,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:02:47,983 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 3 states. [2020-07-19 21:02:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:02:49,043 INFO L93 Difference]: Finished difference Result 278 states and 364 transitions. [2020-07-19 21:02:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:02:49,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-19 21:02:49,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:02:49,072 INFO L225 Difference]: With dead ends: 278 [2020-07-19 21:02:49,072 INFO L226 Difference]: Without dead ends: 151 [2020-07-19 21:02:49,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 21:02:49,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-07-19 21:02:49,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 118. [2020-07-19 21:02:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-07-19 21:02:49,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2020-07-19 21:02:49,158 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 46 [2020-07-19 21:02:49,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:02:49,158 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2020-07-19 21:02:49,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:02:49,159 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2020-07-19 21:02:49,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-19 21:02:49,162 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:02:49,162 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] [2020-07-19 21:02:49,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:02:49,163 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:02:49,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:02:49,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1793827304, now seen corresponding path program 1 times [2020-07-19 21:02:49,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:02:49,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955953220] [2020-07-19 21:02:49,164 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:02:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:49,480 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:02:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:02:49,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955953220] [2020-07-19 21:02:49,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:02:49,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 21:02:49,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924128280] [2020-07-19 21:02:49,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 21:02:49,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:02:49,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 21:02:49,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 21:02:49,524 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand 4 states. [2020-07-19 21:02:49,968 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:02:50,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:02:50,560 INFO L93 Difference]: Finished difference Result 198 states and 241 transitions. [2020-07-19 21:02:50,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:02:50,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-19 21:02:50,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:02:50,565 INFO L225 Difference]: With dead ends: 198 [2020-07-19 21:02:50,566 INFO L226 Difference]: Without dead ends: 135 [2020-07-19 21:02:50,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:02:50,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-07-19 21:02:50,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 109. [2020-07-19 21:02:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-19 21:02:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2020-07-19 21:02:50,628 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 47 [2020-07-19 21:02:50,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:02:50,629 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2020-07-19 21:02:50,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 21:02:50,630 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2020-07-19 21:02:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 21:02:50,636 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:02:50,636 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] [2020-07-19 21:02:50,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:02:50,636 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:02:50,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:02:50,637 INFO L82 PathProgramCache]: Analyzing trace with hash 25908157, now seen corresponding path program 1 times [2020-07-19 21:02:50,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:02:50,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15924060] [2020-07-19 21:02:50,641 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:02:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:50,986 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:02:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:02:51,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15924060] [2020-07-19 21:02:51,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:02:51,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 21:02:51,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999181942] [2020-07-19 21:02:51,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:02:51,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:02:51,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:02:51,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:02:51,096 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand 8 states. [2020-07-19 21:02:51,470 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:02:51,769 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:02:52,022 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:02:52,238 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:02:52,999 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:02:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:02:54,335 INFO L93 Difference]: Finished difference Result 378 states and 466 transitions. [2020-07-19 21:02:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 21:02:54,336 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-07-19 21:02:54,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:02:54,343 INFO L225 Difference]: With dead ends: 378 [2020-07-19 21:02:54,343 INFO L226 Difference]: Without dead ends: 293 [2020-07-19 21:02:54,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 21:02:54,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-07-19 21:02:54,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 220. [2020-07-19 21:02:54,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-07-19 21:02:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 262 transitions. [2020-07-19 21:02:54,456 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 262 transitions. Word has length 52 [2020-07-19 21:02:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:02:54,456 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 262 transitions. [2020-07-19 21:02:54,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:02:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 262 transitions. [2020-07-19 21:02:54,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 21:02:54,458 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:02:54,459 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] [2020-07-19 21:02:54,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 21:02:54,463 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:02:54,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:02:54,467 INFO L82 PathProgramCache]: Analyzing trace with hash -388118307, now seen corresponding path program 1 times [2020-07-19 21:02:54,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:02:54,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182444708] [2020-07-19 21:02:54,468 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:02:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:54,772 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:02:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:02:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:02:54,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182444708] [2020-07-19 21:02:54,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:02:54,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 21:02:54,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809458052] [2020-07-19 21:02:54,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 21:02:54,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:02:54,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 21:02:54,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:02:54,919 INFO L87 Difference]: Start difference. First operand 220 states and 262 transitions. Second operand 12 states. [2020-07-19 21:02:55,341 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:02:55,656 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:02:55,931 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:02:56,157 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:02:56,692 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 21:02:57,418 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:02:57,751 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:02:58,003 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:02:58,301 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:02:58,559 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 21:02:58,963 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:02:59,219 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 21:02:59,443 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:03:00,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:03:00,866 INFO L93 Difference]: Finished difference Result 881 states and 1222 transitions. [2020-07-19 21:03:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 21:03:00,866 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-07-19 21:03:00,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:03:00,880 INFO L225 Difference]: With dead ends: 881 [2020-07-19 21:03:00,880 INFO L226 Difference]: Without dead ends: 685 [2020-07-19 21:03:00,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-19 21:03:00,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2020-07-19 21:03:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 592. [2020-07-19 21:03:01,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-07-19 21:03:01,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 744 transitions. [2020-07-19 21:03:01,012 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 744 transitions. Word has length 57 [2020-07-19 21:03:01,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:03:01,013 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 744 transitions. [2020-07-19 21:03:01,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 21:03:01,013 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 744 transitions. [2020-07-19 21:03:01,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-19 21:03:01,015 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:01,016 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] [2020-07-19 21:03:01,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:03:01,016 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:01,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:01,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1713773635, now seen corresponding path program 1 times [2020-07-19 21:03:01,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:01,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891948776] [2020-07-19 21:03:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:03:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,243 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:03:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:01,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:03:01,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891948776] [2020-07-19 21:03:01,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:03:01,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 21:03:01,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006567996] [2020-07-19 21:03:01,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:03:01,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:03:01,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:03:01,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:03:01,320 INFO L87 Difference]: Start difference. First operand 592 states and 744 transitions. Second operand 6 states. [2020-07-19 21:03:01,644 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:03,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:03:03,201 INFO L93 Difference]: Finished difference Result 1481 states and 1983 transitions. [2020-07-19 21:03:03,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 21:03:03,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-19 21:03:03,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:03:03,214 INFO L225 Difference]: With dead ends: 1481 [2020-07-19 21:03:03,214 INFO L226 Difference]: Without dead ends: 913 [2020-07-19 21:03:03,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:03:03,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2020-07-19 21:03:03,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 846. [2020-07-19 21:03:03,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-07-19 21:03:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1064 transitions. [2020-07-19 21:03:03,381 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1064 transitions. Word has length 61 [2020-07-19 21:03:03,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:03:03,382 INFO L479 AbstractCegarLoop]: Abstraction has 846 states and 1064 transitions. [2020-07-19 21:03:03,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:03:03,382 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1064 transitions. [2020-07-19 21:03:03,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-19 21:03:03,414 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:03,415 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:03:03,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 21:03:03,416 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:03,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:03,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1637256011, now seen corresponding path program 1 times [2020-07-19 21:03:03,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:03,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502171579] [2020-07-19 21:03:03,418 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:03:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,687 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:03:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 21:03:03,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502171579] [2020-07-19 21:03:03,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776806851] [2020-07-19 21:03:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:03:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:04,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-19 21:03:04,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:03:04,112 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:03:04,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:03:04,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 12 [2020-07-19 21:03:04,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619428705] [2020-07-19 21:03:04,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 21:03:04,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:03:04,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 21:03:04,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:03:04,115 INFO L87 Difference]: Start difference. First operand 846 states and 1064 transitions. Second operand 12 states. [2020-07-19 21:03:04,670 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-07-19 21:03:05,239 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:06,911 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:07,189 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:09,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:03:09,610 INFO L93 Difference]: Finished difference Result 2220 states and 3014 transitions. [2020-07-19 21:03:09,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-07-19 21:03:09,611 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-07-19 21:03:09,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:03:09,626 INFO L225 Difference]: With dead ends: 2220 [2020-07-19 21:03:09,626 INFO L226 Difference]: Without dead ends: 1635 [2020-07-19 21:03:09,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=274, Invalid=986, Unknown=0, NotChecked=0, Total=1260 [2020-07-19 21:03:09,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2020-07-19 21:03:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1489. [2020-07-19 21:03:09,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1489 states. [2020-07-19 21:03:10,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1885 transitions. [2020-07-19 21:03:10,004 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1885 transitions. Word has length 89 [2020-07-19 21:03:10,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:03:10,006 INFO L479 AbstractCegarLoop]: Abstraction has 1489 states and 1885 transitions. [2020-07-19 21:03:10,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 21:03:10,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1885 transitions. [2020-07-19 21:03:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-19 21:03:10,012 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:10,014 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:03:10,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-19 21:03:10,230 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:10,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:10,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1643767233, now seen corresponding path program 1 times [2020-07-19 21:03:10,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:10,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404214695] [2020-07-19 21:03:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:03:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,554 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:03:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-19 21:03:10,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404214695] [2020-07-19 21:03:10,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569500149] [2020-07-19 21:03:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:03:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:10,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-19 21:03:10,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:03:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-19 21:03:10,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:03:10,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2020-07-19 21:03:10,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234992961] [2020-07-19 21:03:10,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 21:03:10,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:03:10,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 21:03:10,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:03:10,953 INFO L87 Difference]: Start difference. First operand 1489 states and 1885 transitions. Second operand 5 states. [2020-07-19 21:03:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:03:11,229 INFO L93 Difference]: Finished difference Result 2954 states and 3846 transitions. [2020-07-19 21:03:11,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:03:11,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-07-19 21:03:11,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:03:11,240 INFO L225 Difference]: With dead ends: 2954 [2020-07-19 21:03:11,240 INFO L226 Difference]: Without dead ends: 1489 [2020-07-19 21:03:11,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:03:11,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2020-07-19 21:03:11,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1489. [2020-07-19 21:03:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1489 states. [2020-07-19 21:03:11,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1879 transitions. [2020-07-19 21:03:11,745 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1879 transitions. Word has length 111 [2020-07-19 21:03:11,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:03:11,746 INFO L479 AbstractCegarLoop]: Abstraction has 1489 states and 1879 transitions. [2020-07-19 21:03:11,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 21:03:11,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1879 transitions. [2020-07-19 21:03:11,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-19 21:03:11,751 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:11,752 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:03:11,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:03:11,965 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:11,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1698160131, now seen corresponding path program 1 times [2020-07-19 21:03:11,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:11,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378378554] [2020-07-19 21:03:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:03:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,232 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:03:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-19 21:03:12,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378378554] [2020-07-19 21:03:12,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170127304] [2020-07-19 21:03:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:03:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:12,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 21:03:12,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:03:12,593 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-19 21:03:12,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:03:12,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-19 21:03:12,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205405608] [2020-07-19 21:03:12,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 21:03:12,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:03:12,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 21:03:12,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-19 21:03:12,595 INFO L87 Difference]: Start difference. First operand 1489 states and 1879 transitions. Second operand 6 states. [2020-07-19 21:03:12,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:03:12,816 INFO L93 Difference]: Finished difference Result 2722 states and 3485 transitions. [2020-07-19 21:03:12,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 21:03:12,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2020-07-19 21:03:12,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:03:12,824 INFO L225 Difference]: With dead ends: 2722 [2020-07-19 21:03:12,824 INFO L226 Difference]: Without dead ends: 1257 [2020-07-19 21:03:12,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:03:12,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2020-07-19 21:03:13,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2020-07-19 21:03:13,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1257 states. [2020-07-19 21:03:13,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1556 transitions. [2020-07-19 21:03:13,158 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1556 transitions. Word has length 111 [2020-07-19 21:03:13,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:03:13,158 INFO L479 AbstractCegarLoop]: Abstraction has 1257 states and 1556 transitions. [2020-07-19 21:03:13,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 21:03:13,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1556 transitions. [2020-07-19 21:03:13,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-19 21:03:13,161 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:13,161 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:03:13,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:03:13,376 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:13,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:13,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1415201690, now seen corresponding path program 1 times [2020-07-19 21:03:13,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:13,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480839942] [2020-07-19 21:03:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:03:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,661 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 21:03:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-19 21:03:13,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480839942] [2020-07-19 21:03:13,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332580290] [2020-07-19 21:03:13,811 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:03:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:03:13,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 21:03:13,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:03:14,082 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:03:14,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:03:14,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 17 [2020-07-19 21:03:14,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853450494] [2020-07-19 21:03:14,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-19 21:03:14,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:03:14,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-19 21:03:14,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-07-19 21:03:14,085 INFO L87 Difference]: Start difference. First operand 1257 states and 1556 transitions. Second operand 17 states. [2020-07-19 21:03:14,459 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:15,092 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:15,858 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-19 21:03:16,139 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:03:16,384 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:03:16,840 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-19 21:03:17,150 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 21:03:17,396 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 21:03:18,823 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 21:03:19,107 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 21:03:20,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:03:20,019 INFO L93 Difference]: Finished difference Result 2613 states and 3470 transitions. [2020-07-19 21:03:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-19 21:03:20,019 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 115 [2020-07-19 21:03:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:03:20,029 INFO L225 Difference]: With dead ends: 2613 [2020-07-19 21:03:20,029 INFO L226 Difference]: Without dead ends: 1529 [2020-07-19 21:03:20,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 152 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=381, Invalid=1101, Unknown=0, NotChecked=0, Total=1482 [2020-07-19 21:03:20,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2020-07-19 21:03:20,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1129. [2020-07-19 21:03:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2020-07-19 21:03:20,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1388 transitions. [2020-07-19 21:03:20,252 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1388 transitions. Word has length 115 [2020-07-19 21:03:20,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:03:20,252 INFO L479 AbstractCegarLoop]: Abstraction has 1129 states and 1388 transitions. [2020-07-19 21:03:20,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-19 21:03:20,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1388 transitions. [2020-07-19 21:03:20,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-19 21:03:20,256 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:03:20,257 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:03:20,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:03:20,471 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:03:20,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:03:20,472 INFO L82 PathProgramCache]: Analyzing trace with hash 59332245, now seen corresponding path program 2 times [2020-07-19 21:03:20,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:03:20,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650573474] [2020-07-19 21:03:20,473 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@494f22d2 [2020-07-19 21:03:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:03:20,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:03:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:03:20,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:03:20,837 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 21:03:20,838 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 21:03:20,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-19 21:03:21,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:03:21 BoogieIcfgContainer [2020-07-19 21:03:21,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:03:21,103 INFO L168 Benchmark]: Toolchain (without parser) took 35877.87 ms. Allocated memory was 134.7 MB in the beginning and 852.5 MB in the end (delta: 717.8 MB). Free memory was 98.6 MB in the beginning and 736.4 MB in the end (delta: -637.8 MB). Peak memory consumption was 706.5 MB. Max. memory is 7.1 GB. [2020-07-19 21:03:21,104 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 134.7 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 21:03:21,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.09 ms. Allocated memory was 134.7 MB in the beginning and 198.2 MB in the end (delta: 63.4 MB). Free memory was 98.2 MB in the beginning and 165.9 MB in the end (delta: -67.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-07-19 21:03:21,105 INFO L168 Benchmark]: Boogie Preprocessor took 84.48 ms. Allocated memory is still 198.2 MB. Free memory was 165.9 MB in the beginning and 161.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-19 21:03:21,106 INFO L168 Benchmark]: RCFGBuilder took 1118.84 ms. Allocated memory was 198.2 MB in the beginning and 224.4 MB in the end (delta: 26.2 MB). Free memory was 161.6 MB in the beginning and 193.8 MB in the end (delta: -32.2 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2020-07-19 21:03:21,107 INFO L168 Benchmark]: TraceAbstraction took 34045.37 ms. Allocated memory was 224.4 MB in the beginning and 852.5 MB in the end (delta: 628.1 MB). Free memory was 192.3 MB in the beginning and 736.4 MB in the end (delta: -544.1 MB). Peak memory consumption was 710.5 MB. Max. memory is 7.1 GB. [2020-07-19 21:03:21,110 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 134.7 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 623.09 ms. Allocated memory was 134.7 MB in the beginning and 198.2 MB in the end (delta: 63.4 MB). Free memory was 98.2 MB in the beginning and 165.9 MB in the end (delta: -67.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.48 ms. Allocated memory is still 198.2 MB. Free memory was 165.9 MB in the beginning and 161.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1118.84 ms. Allocated memory was 198.2 MB in the beginning and 224.4 MB in the end (delta: 26.2 MB). Free memory was 161.6 MB in the beginning and 193.8 MB in the end (delta: -32.2 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34045.37 ms. Allocated memory was 224.4 MB in the beginning and 852.5 MB in the end (delta: 628.1 MB). Free memory was 192.3 MB in the beginning and 736.4 MB in the end (delta: -544.1 MB). Peak memory consumption was 710.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 437]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=165, \old(methaneLevelCritical)=145, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] int retValue_acc ; [L376] 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] [L380] 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] [L381] 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] [L382] 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] [L424] int retValue_acc ; [L427] retValue_acc = 1 [L428] 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] [L382] 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] [L382] tmp = valid_product() [L384] 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] [L386] 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] [L387] 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] [L366] 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] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] 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] [L56] 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] [L58] 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] [L64] tmp = __VERIFIER_nondet_int() [L66] 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] [L68] 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] [L827] COND TRUE waterLevel < 2 [L828] 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] [L68] 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] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] 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] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\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=0, tmp___2=0, waterLevel=2] [L103] 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] [L131] 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] [L138] 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] [L140] CALL 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] [L160] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND TRUE ! 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] [L165] CALL, EXPR isHighWaterLevel() 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] [L257] int retValue_acc ; [L258] int tmp ; [L259] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] CALL, EXPR isHighWaterSensorDry() 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] [L889] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(waterLevel < 2) [L896] retValue_acc = 0 [L897] 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] [L263] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] tmp = isHighWaterSensorDry() [L265] COND FALSE !(\read(tmp)) [L268] tmp___0 = 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=1, waterLevel=2] [L270] retValue_acc = tmp___0 [L271] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L165] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] tmp = isHighWaterLevel() [L167] COND TRUE \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=1, waterLevel=2] [L169] CALL activatePump() 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] [L188] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L169] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L140] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L146] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L904] int tmp ; [L905] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L909] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] 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=1, retValue_acc=2, systemActive=1, waterLevel=2] [L909] 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=1, systemActive=1, waterLevel=2] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L146] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L103] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L56] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L58] 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=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L103] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L131] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L133] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L133] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L138] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L160] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L178] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L146] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L904] int tmp ; [L905] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L909] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L909] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L146] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L103] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L56] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L58] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L103] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L131] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L133] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L133] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L138] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L160] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L163] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L178] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L146] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L904] int tmp ; [L905] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L909] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L909] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L909] tmp = getWaterLevel() [L911] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L913] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L212] int retValue_acc ; [L215] retValue_acc = pumpRunning [L216] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L913] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L913] tmp___0 = isPumpRunning() [L915] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L917] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L437] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 25.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1127 SDtfs, 2572 SDslu, 1896 SDs, 0 SdLazy, 6130 SolverSat, 2045 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 794 GetRequests, 648 SyntacticMatches, 7 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1489occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 838 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1266 NumberOfCodeBlocks, 1266 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1102 ConstructedInterpolants, 0 QuantifiedInterpolants, 298042 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3172 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 171/198 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...