./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57b9da01117a2ba17baea08a2ca63a083a2352f35e4a8b92086e48b0ce29e696 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:16:01,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:16:01,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:16:01,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:16:01,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:16:01,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:16:01,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:16:01,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:16:01,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:16:01,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:16:01,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:16:01,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:16:01,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:16:01,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:16:01,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:16:01,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:16:01,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:16:01,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:16:01,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:16:01,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:16:01,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:16:01,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:16:01,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:16:01,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:16:01,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:16:01,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:16:01,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:16:01,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:16:01,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:16:01,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:16:01,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:16:01,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:16:01,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:16:01,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:16:01,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:16:01,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:16:01,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:16:01,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:16:01,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:16:01,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:16:01,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:16:01,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:16:01,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:16:01,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:16:01,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:16:01,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:16:01,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:16:01,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:16:01,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:16:01,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:16:01,900 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:16:01,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:16:01,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:16:01,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:16:01,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:16:01,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:16:01,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:16:01,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:16:01,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:16:01,902 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:16:01,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:16:01,902 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:16:01,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:16:01,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:16:01,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:16:01,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:16:01,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:16:01,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:16:01,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:16:01,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:16:01,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:16:01,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:16:01,904 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:16:01,904 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:16:01,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:16:01,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:16:01,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b9da01117a2ba17baea08a2ca63a083a2352f35e4a8b92086e48b0ce29e696 [2021-12-21 13:16:02,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:16:02,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:16:02,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:16:02,124 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:16:02,125 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:16:02,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2021-12-21 13:16:02,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51066e724/358850bfc8c6470599193c14eab967c2/FLAGd41e66bee [2021-12-21 13:16:02,498 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:16:02,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c [2021-12-21 13:16:02,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51066e724/358850bfc8c6470599193c14eab967c2/FLAGd41e66bee [2021-12-21 13:16:02,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51066e724/358850bfc8c6470599193c14eab967c2 [2021-12-21 13:16:02,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:16:02,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:16:02,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:16:02,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:16:02,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:16:02,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:16:02" (1/1) ... [2021-12-21 13:16:02,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f19e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:02, skipping insertion in model container [2021-12-21 13:16:02,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:16:02" (1/1) ... [2021-12-21 13:16:02,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:16:02,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:16:03,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c[18223,18236] [2021-12-21 13:16:03,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:16:03,149 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:16:03,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product30.cil.c[18223,18236] [2021-12-21 13:16:03,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:16:03,247 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:16:03,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03 WrapperNode [2021-12-21 13:16:03,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:16:03,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:16:03,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:16:03,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:16:03,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,294 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 22, calls inlined = 18, statements flattened = 246 [2021-12-21 13:16:03,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:16:03,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:16:03,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:16:03,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:16:03,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:16:03,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:16:03,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:16:03,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:16:03,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (1/1) ... [2021-12-21 13:16:03,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:16:03,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:16:03,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 13:16:03,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 13:16:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:16:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-21 13:16:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-21 13:16:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-21 13:16:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-21 13:16:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-21 13:16:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-21 13:16:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-21 13:16:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-21 13:16:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:16:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:16:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-21 13:16:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-21 13:16:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-21 13:16:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-21 13:16:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:16:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-21 13:16:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-21 13:16:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:16:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:16:03,448 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:16:03,450 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:16:03,716 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:16:03,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:16:03,722 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 13:16:03,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:16:03 BoogieIcfgContainer [2021-12-21 13:16:03,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:16:03,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:16:03,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:16:03,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:16:03,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:16:02" (1/3) ... [2021-12-21 13:16:03,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e654fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:16:03, skipping insertion in model container [2021-12-21 13:16:03,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:16:03" (2/3) ... [2021-12-21 13:16:03,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e654fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:16:03, skipping insertion in model container [2021-12-21 13:16:03,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:16:03" (3/3) ... [2021-12-21 13:16:03,730 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product30.cil.c [2021-12-21 13:16:03,733 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:16:03,733 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:16:03,764 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:16:03,769 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 13:16:03,769 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:16:03,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 64 states have (on average 1.375) internal successors, (88), 72 states have internal predecessors, (88), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-21 13:16:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-21 13:16:03,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:03,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:03,786 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:03,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:03,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1651489756, now seen corresponding path program 1 times [2021-12-21 13:16:03,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:03,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839191495] [2021-12-21 13:16:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:03,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:16:03,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:03,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839191495] [2021-12-21 13:16:03,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839191495] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:03,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:03,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 13:16:03,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889614541] [2021-12-21 13:16:03,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:03,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 13:16:03,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:04,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 13:16:04,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:16:04,010 INFO L87 Difference]: Start difference. First operand has 87 states, 64 states have (on average 1.375) internal successors, (88), 72 states have internal predecessors, (88), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:16:04,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:04,048 INFO L93 Difference]: Finished difference Result 166 states and 223 transitions. [2021-12-21 13:16:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 13:16:04,049 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-21 13:16:04,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:04,056 INFO L225 Difference]: With dead ends: 166 [2021-12-21 13:16:04,057 INFO L226 Difference]: Without dead ends: 78 [2021-12-21 13:16:04,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 13:16:04,066 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:04,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:04,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-12-21 13:16:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-12-21 13:16:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 64 states have internal predecessors, (74), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-21 13:16:04,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 99 transitions. [2021-12-21 13:16:04,113 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 99 transitions. Word has length 19 [2021-12-21 13:16:04,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:04,114 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 99 transitions. [2021-12-21 13:16:04,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:16:04,115 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2021-12-21 13:16:04,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-21 13:16:04,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:04,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:04,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 13:16:04,119 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:04,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1176523386, now seen corresponding path program 1 times [2021-12-21 13:16:04,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:04,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534067203] [2021-12-21 13:16:04,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:04,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:16:04,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:04,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534067203] [2021-12-21 13:16:04,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534067203] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:04,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:04,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 13:16:04,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424183280] [2021-12-21 13:16:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:04,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 13:16:04,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 13:16:04,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:16:04,199 INFO L87 Difference]: Start difference. First operand 78 states and 99 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:16:04,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:04,225 INFO L93 Difference]: Finished difference Result 121 states and 153 transitions. [2021-12-21 13:16:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 13:16:04,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-21 13:16:04,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:04,227 INFO L225 Difference]: With dead ends: 121 [2021-12-21 13:16:04,227 INFO L226 Difference]: Without dead ends: 69 [2021-12-21 13:16:04,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 13:16:04,228 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 13 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:04,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 155 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-21 13:16:04,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-12-21 13:16:04,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 58 states have internal predecessors, (67), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-21 13:16:04,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2021-12-21 13:16:04,235 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 20 [2021-12-21 13:16:04,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:04,237 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2021-12-21 13:16:04,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:16:04,237 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2021-12-21 13:16:04,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-21 13:16:04,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:04,239 INFO L514 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] [2021-12-21 13:16:04,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 13:16:04,239 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:04,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:04,240 INFO L85 PathProgramCache]: Analyzing trace with hash 59160395, now seen corresponding path program 1 times [2021-12-21 13:16:04,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:04,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859990185] [2021-12-21 13:16:04,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:04,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:16:04,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:04,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859990185] [2021-12-21 13:16:04,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859990185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:04,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:04,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 13:16:04,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149035192] [2021-12-21 13:16:04,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:04,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 13:16:04,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:04,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 13:16:04,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:16:04,302 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:16:04,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:04,363 INFO L93 Difference]: Finished difference Result 131 states and 168 transitions. [2021-12-21 13:16:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 13:16:04,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-21 13:16:04,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:04,365 INFO L225 Difference]: With dead ends: 131 [2021-12-21 13:16:04,366 INFO L226 Difference]: Without dead ends: 69 [2021-12-21 13:16:04,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-21 13:16:04,368 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 112 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:04,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 208 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:04,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-21 13:16:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-12-21 13:16:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 58 states have internal predecessors, (66), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-21 13:16:04,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2021-12-21 13:16:04,379 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 25 [2021-12-21 13:16:04,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:04,379 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2021-12-21 13:16:04,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:16:04,379 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2021-12-21 13:16:04,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-21 13:16:04,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:04,381 INFO L514 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] [2021-12-21 13:16:04,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 13:16:04,382 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:04,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:04,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1213028198, now seen corresponding path program 1 times [2021-12-21 13:16:04,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:04,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875965837] [2021-12-21 13:16:04,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:04,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:16:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:04,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 13:16:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:04,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:16:04,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:04,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875965837] [2021-12-21 13:16:04,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875965837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:04,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:04,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 13:16:04,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010942802] [2021-12-21 13:16:04,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:04,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 13:16:04,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:04,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 13:16:04,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-21 13:16:04,501 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:04,880 INFO L93 Difference]: Finished difference Result 281 states and 369 transitions. [2021-12-21 13:16:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-21 13:16:04,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2021-12-21 13:16:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:04,883 INFO L225 Difference]: With dead ends: 281 [2021-12-21 13:16:04,883 INFO L226 Difference]: Without dead ends: 219 [2021-12-21 13:16:04,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2021-12-21 13:16:04,885 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 257 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:04,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 463 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 13:16:04,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-12-21 13:16:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 180. [2021-12-21 13:16:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 130 states have (on average 1.2923076923076924) internal successors, (168), 148 states have internal predecessors, (168), 29 states have call successors, (29), 20 states have call predecessors, (29), 20 states have return successors, (32), 17 states have call predecessors, (32), 29 states have call successors, (32) [2021-12-21 13:16:04,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 229 transitions. [2021-12-21 13:16:04,911 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 229 transitions. Word has length 35 [2021-12-21 13:16:04,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:04,911 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 229 transitions. [2021-12-21 13:16:04,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:04,911 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 229 transitions. [2021-12-21 13:16:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-21 13:16:04,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:04,925 INFO L514 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] [2021-12-21 13:16:04,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 13:16:04,925 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:04,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:04,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1911530027, now seen corresponding path program 1 times [2021-12-21 13:16:04,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:04,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192471899] [2021-12-21 13:16:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:04,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:04,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 13:16:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:04,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 13:16:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:04,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 13:16:04,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:04,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192471899] [2021-12-21 13:16:04,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192471899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 13:16:04,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 13:16:04,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 13:16:04,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450458563] [2021-12-21 13:16:04,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 13:16:04,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 13:16:04,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:04,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 13:16:04,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 13:16:04,970 INFO L87 Difference]: Start difference. First operand 180 states and 229 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:04,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:04,999 INFO L93 Difference]: Finished difference Result 291 states and 375 transitions. [2021-12-21 13:16:04,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 13:16:05,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2021-12-21 13:16:05,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:05,001 INFO L225 Difference]: With dead ends: 291 [2021-12-21 13:16:05,001 INFO L226 Difference]: Without dead ends: 118 [2021-12-21 13:16:05,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 13:16:05,003 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 55 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:05,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 66 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 13:16:05,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-21 13:16:05,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-12-21 13:16:05,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 89 states have (on average 1.202247191011236) internal successors, (107), 95 states have internal predecessors, (107), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2021-12-21 13:16:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 136 transitions. [2021-12-21 13:16:05,011 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 136 transitions. Word has length 37 [2021-12-21 13:16:05,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:05,012 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 136 transitions. [2021-12-21 13:16:05,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 13:16:05,012 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 136 transitions. [2021-12-21 13:16:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-21 13:16:05,013 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:16:05,014 INFO L514 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:16:05,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 13:16:05,014 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:16:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:16:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash -422097733, now seen corresponding path program 1 times [2021-12-21 13:16:05,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:16:05,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121520020] [2021-12-21 13:16:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:05,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 13:16:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:05,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 13:16:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:05,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 13:16:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:05,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 13:16:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 13:16:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 13:16:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:05,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 13:16:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:05,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 13:16:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-21 13:16:05,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 13:16:05,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121520020] [2021-12-21 13:16:05,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121520020] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 13:16:05,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740720758] [2021-12-21 13:16:05,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:16:05,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 13:16:05,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:16:05,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 13:16:05,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 13:16:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 13:16:05,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-21 13:16:05,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 13:16:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 13:16:05,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 13:16:05,780 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-21 13:16:05,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740720758] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 13:16:05,781 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 13:16:05,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 16 [2021-12-21 13:16:05,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648672934] [2021-12-21 13:16:05,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 13:16:05,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-21 13:16:05,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 13:16:05,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-21 13:16:05,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-12-21 13:16:05,785 INFO L87 Difference]: Start difference. First operand 118 states and 136 transitions. Second operand has 16 states, 16 states have (on average 6.5) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (19), 9 states have call predecessors, (19), 8 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2021-12-21 13:16:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 13:16:05,952 INFO L93 Difference]: Finished difference Result 157 states and 181 transitions. [2021-12-21 13:16:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 13:16:05,953 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.5) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (19), 9 states have call predecessors, (19), 8 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 71 [2021-12-21 13:16:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 13:16:05,954 INFO L225 Difference]: With dead ends: 157 [2021-12-21 13:16:05,954 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 13:16:05,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2021-12-21 13:16:05,959 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 167 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 13:16:05,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 431 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 13:16:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 13:16:05,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 13:16:05,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 13:16:05,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 13:16:05,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-12-21 13:16:05,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 13:16:05,965 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 13:16:05,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.5) internal successors, (104), 12 states have internal predecessors, (104), 7 states have call successors, (19), 9 states have call predecessors, (19), 8 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2021-12-21 13:16:05,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 13:16:05,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 13:16:05,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 13:16:05,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 13:16:06,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-21 13:16:06,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 13:16:06,907 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 290 297) the Hoare annotation is: true [2021-12-21 13:16:06,907 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 290 297) no Hoare annotation was computed. [2021-12-21 13:16:06,907 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 290 297) no Hoare annotation was computed. [2021-12-21 13:16:06,907 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 206 212) no Hoare annotation was computed. [2021-12-21 13:16:06,907 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 206 212) the Hoare annotation is: true [2021-12-21 13:16:06,907 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2021-12-21 13:16:06,907 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2021-12-21 13:16:06,907 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2021-12-21 13:16:06,907 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 817 846) no Hoare annotation was computed. [2021-12-21 13:16:06,907 INFO L858 garLoopResultBuilder]: For program point L831(lines 831 835) no Hoare annotation was computed. [2021-12-21 13:16:06,908 INFO L861 garLoopResultBuilder]: At program point L831-1(lines 831 835) the Hoare annotation is: true [2021-12-21 13:16:06,908 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 817 846) the Hoare annotation is: true [2021-12-21 13:16:06,908 INFO L858 garLoopResultBuilder]: For program point L828(line 828) no Hoare annotation was computed. [2021-12-21 13:16:06,908 INFO L861 garLoopResultBuilder]: At program point L827-2(lines 827 841) the Hoare annotation is: true [2021-12-21 13:16:06,908 INFO L861 garLoopResultBuilder]: At program point L823(line 823) the Hoare annotation is: true [2021-12-21 13:16:06,908 INFO L858 garLoopResultBuilder]: For program point L823-1(line 823) no Hoare annotation was computed. [2021-12-21 13:16:06,908 INFO L861 garLoopResultBuilder]: At program point L842(lines 817 846) the Hoare annotation is: true [2021-12-21 13:16:06,908 INFO L858 garLoopResultBuilder]: For program point L838(line 838) no Hoare annotation was computed. [2021-12-21 13:16:06,908 INFO L854 garLoopResultBuilder]: At program point L254(line 254) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,908 INFO L854 garLoopResultBuilder]: At program point L250(line 250) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,908 INFO L854 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,908 INFO L858 garLoopResultBuilder]: For program point L246-1(line 246) no Hoare annotation was computed. [2021-12-21 13:16:06,908 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 182 205) no Hoare annotation was computed. [2021-12-21 13:16:06,908 INFO L854 garLoopResultBuilder]: At program point L259(line 259) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1)) .cse2))) [2021-12-21 13:16:06,909 INFO L854 garLoopResultBuilder]: At program point L259-1(lines 240 264) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1)) .cse2))) [2021-12-21 13:16:06,909 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 193 199) no Hoare annotation was computed. [2021-12-21 13:16:06,909 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 166) no Hoare annotation was computed. [2021-12-21 13:16:06,909 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 169) no Hoare annotation was computed. [2021-12-21 13:16:06,909 INFO L854 garLoopResultBuilder]: At program point L156-1(lines 148 172) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~0#1| 0))) (.cse3 (not (= |timeShift_getWaterLevel_#res#1| 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (and .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 1)) .cse4))) [2021-12-21 13:16:06,909 INFO L854 garLoopResultBuilder]: At program point L132(lines 127 135) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= |timeShift_getWaterLevel_#res#1| 0))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 (= ~waterLevel~0 1)) .cse3))) [2021-12-21 13:16:06,909 INFO L854 garLoopResultBuilder]: At program point L314(lines 309 317) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,909 INFO L858 garLoopResultBuilder]: For program point L954(line 954) no Hoare annotation was computed. [2021-12-21 13:16:06,909 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 185 204) no Hoare annotation was computed. [2021-12-21 13:16:06,909 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-12-21 13:16:06,909 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 261) no Hoare annotation was computed. [2021-12-21 13:16:06,909 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2021-12-21 13:16:06,909 INFO L854 garLoopResultBuilder]: At program point L63-2(lines 59 70) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,910 INFO L854 garLoopResultBuilder]: At program point L955(lines 950 957) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,910 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 182 205) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1)) .cse2))) [2021-12-21 13:16:06,910 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 182 205) no Hoare annotation was computed. [2021-12-21 13:16:06,910 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 954) no Hoare annotation was computed. [2021-12-21 13:16:06,910 INFO L854 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~9#1|) (= ~waterLevel~0 1) .cse3) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= |ULTIMATE.start_main_~tmp~9#1| 1) .cse2 .cse3))) [2021-12-21 13:16:06,910 INFO L861 garLoopResultBuilder]: At program point L444(lines 383 448) the Hoare annotation is: true [2021-12-21 13:16:06,910 INFO L854 garLoopResultBuilder]: At program point L378(lines 373 380) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~9#1|) (= ~waterLevel~0 1) .cse3) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= |ULTIMATE.start_main_~tmp~9#1| 1) .cse2 .cse3))) [2021-12-21 13:16:06,910 INFO L858 garLoopResultBuilder]: For program point L403(lines 403 409) no Hoare annotation was computed. [2021-12-21 13:16:06,910 INFO L858 garLoopResultBuilder]: For program point L403-1(lines 403 409) no Hoare annotation was computed. [2021-12-21 13:16:06,910 INFO L858 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2021-12-21 13:16:06,910 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 13:16:06,910 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 13:16:06,910 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 13:16:06,911 INFO L854 garLoopResultBuilder]: At program point L441(lines 392 442) the Hoare annotation is: false [2021-12-21 13:16:06,911 INFO L854 garLoopResultBuilder]: At program point L945(lines 940 948) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-12-21 13:16:06,911 INFO L854 garLoopResultBuilder]: At program point L875(lines 871 877) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~9#1|) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-12-21 13:16:06,911 INFO L854 garLoopResultBuilder]: At program point L937(lines 933 939) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-12-21 13:16:06,911 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 13:16:06,911 INFO L858 garLoopResultBuilder]: For program point L413(lines 413 419) no Hoare annotation was computed. [2021-12-21 13:16:06,911 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 413 419) no Hoare annotation was computed. [2021-12-21 13:16:06,911 INFO L854 garLoopResultBuilder]: At program point L438(lines 393 440) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~9#1|) (= ~waterLevel~0 1) .cse3) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= |ULTIMATE.start_main_~tmp~9#1| 1) .cse2 .cse3))) [2021-12-21 13:16:06,911 INFO L854 garLoopResultBuilder]: At program point L405(line 405) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~9#1|) (= ~waterLevel~0 1) .cse3) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= |ULTIMATE.start_main_~tmp~9#1| 1) .cse2 .cse3))) [2021-12-21 13:16:06,911 INFO L858 garLoopResultBuilder]: For program point L901(lines 901 908) no Hoare annotation was computed. [2021-12-21 13:16:06,911 INFO L858 garLoopResultBuilder]: For program point L901-2(lines 901 908) no Hoare annotation was computed. [2021-12-21 13:16:06,911 INFO L854 garLoopResultBuilder]: At program point L930(lines 926 932) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-12-21 13:16:06,911 INFO L861 garLoopResultBuilder]: At program point L885(lines 878 887) the Hoare annotation is: true [2021-12-21 13:16:06,911 INFO L858 garLoopResultBuilder]: For program point L431(lines 431 435) no Hoare annotation was computed. [2021-12-21 13:16:06,912 INFO L861 garLoopResultBuilder]: At program point L910(lines 891 913) the Hoare annotation is: true [2021-12-21 13:16:06,912 INFO L854 garLoopResultBuilder]: At program point L431-2(lines 423 436) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 |ULTIMATE.start_main_~tmp~9#1|) (= ~waterLevel~0 1) .cse3) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= |ULTIMATE.start_main_~tmp~9#1| 1) .cse2 .cse3))) [2021-12-21 13:16:06,912 INFO L858 garLoopResultBuilder]: For program point L394(lines 393 440) no Hoare annotation was computed. [2021-12-21 13:16:06,912 INFO L858 garLoopResultBuilder]: For program point L423(lines 423 436) no Hoare annotation was computed. [2021-12-21 13:16:06,912 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2021-12-21 13:16:06,912 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2021-12-21 13:16:06,912 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= ~waterLevel~0 1)))) [2021-12-21 13:16:06,912 INFO L854 garLoopResultBuilder]: At program point L141(lines 136 144) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,912 INFO L854 garLoopResultBuilder]: At program point L228(line 228) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,912 INFO L854 garLoopResultBuilder]: At program point L224(line 224) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,912 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 230) no Hoare annotation was computed. [2021-12-21 13:16:06,912 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 235) no Hoare annotation was computed. [2021-12-21 13:16:06,912 INFO L854 garLoopResultBuilder]: At program point L369(lines 354 372) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-12-21 13:16:06,912 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 214 238) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2021-12-21 13:16:06,913 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 214 238) no Hoare annotation was computed. [2021-12-21 13:16:06,913 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 367) no Hoare annotation was computed. [2021-12-21 13:16:06,913 INFO L858 garLoopResultBuilder]: For program point L363-2(lines 363 367) no Hoare annotation was computed. [2021-12-21 13:16:06,913 INFO L854 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2021-12-21 13:16:06,913 INFO L858 garLoopResultBuilder]: For program point L233-1(lines 214 238) no Hoare annotation was computed. [2021-12-21 13:16:06,913 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 298 308) the Hoare annotation is: true [2021-12-21 13:16:06,913 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 298 308) no Hoare annotation was computed. [2021-12-21 13:16:06,913 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 298 308) no Hoare annotation was computed. [2021-12-21 13:16:06,913 INFO L861 garLoopResultBuilder]: At program point L100(lines 95 103) the Hoare annotation is: true [2021-12-21 13:16:06,921 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-21 13:16:06,922 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 13:16:06,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:16:06 BoogieIcfgContainer [2021-12-21 13:16:06,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 13:16:06,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 13:16:06,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 13:16:06,937 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 13:16:06,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:16:03" (3/4) ... [2021-12-21 13:16:06,940 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 13:16:06,944 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-21 13:16:06,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-21 13:16:06,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-21 13:16:06,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-21 13:16:06,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-21 13:16:06,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-21 13:16:06,945 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-21 13:16:06,946 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-21 13:16:06,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2021-12-21 13:16:06,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-21 13:16:06,953 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-21 13:16:06,953 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 13:16:06,954 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 13:16:06,954 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:16:06,954 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 13:16:06,970 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2021-12-21 13:16:06,970 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && waterLevel == tmp) && waterLevel == 1) && !(0 == systemActive) [2021-12-21 13:16:06,970 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && waterLevel == tmp) && waterLevel == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) [2021-12-21 13:16:06,971 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || 0 == systemActive [2021-12-21 13:16:06,971 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || 0 == systemActive) [2021-12-21 13:16:06,972 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && waterLevel == tmp) && waterLevel == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) [2021-12-21 13:16:06,972 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && !(\result == 0)) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && !(\result == 0)) && waterLevel == 1)) || 0 == systemActive) [2021-12-21 13:16:06,972 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && waterLevel == 1)) || !(\old(waterLevel) == 1)) || 0 == systemActive) [2021-12-21 13:16:06,972 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive [2021-12-21 13:16:06,973 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || 0 == systemActive [2021-12-21 13:16:06,973 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive [2021-12-21 13:16:06,973 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || 0 == systemActive [2021-12-21 13:16:06,999 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 13:16:07,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 13:16:07,000 INFO L158 Benchmark]: Toolchain (without parser) took 4096.77ms. Allocated memory was 94.4MB in the beginning and 142.6MB in the end (delta: 48.2MB). Free memory was 62.0MB in the beginning and 78.3MB in the end (delta: -16.3MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2021-12-21 13:16:07,000 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 94.4MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 13:16:07,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.18ms. Allocated memory is still 94.4MB. Free memory was 61.9MB in the beginning and 61.9MB in the end (delta: -12.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 13:16:07,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.98ms. Allocated memory is still 94.4MB. Free memory was 61.9MB in the beginning and 59.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:16:07,001 INFO L158 Benchmark]: Boogie Preprocessor took 30.38ms. Allocated memory is still 94.4MB. Free memory was 59.3MB in the beginning and 57.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 13:16:07,001 INFO L158 Benchmark]: RCFGBuilder took 396.87ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 57.8MB in the beginning and 90.2MB in the end (delta: -32.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2021-12-21 13:16:07,002 INFO L158 Benchmark]: TraceAbstraction took 3211.82ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 89.7MB in the beginning and 84.6MB in the end (delta: 5.1MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2021-12-21 13:16:07,002 INFO L158 Benchmark]: Witness Printer took 62.78ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 78.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 13:16:07,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 94.4MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.18ms. Allocated memory is still 94.4MB. Free memory was 61.9MB in the beginning and 61.9MB in the end (delta: -12.8kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.98ms. Allocated memory is still 94.4MB. Free memory was 61.9MB in the beginning and 59.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.38ms. Allocated memory is still 94.4MB. Free memory was 59.3MB in the beginning and 57.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.87ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 57.8MB in the beginning and 90.2MB in the end (delta: -32.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3211.82ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 89.7MB in the beginning and 84.6MB in the end (delta: 5.1MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. * Witness Printer took 62.78ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 78.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 954]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 613 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 604 mSDsluCounter, 1431 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 967 mSDsCounter, 180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 617 IncrementalHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 180 mSolverCounterUnsat, 464 mSDtfsCounter, 617 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=4, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 39 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 349 PreInvPairs, 371 NumberOfFragments, 704 HoareAnnotationTreeSize, 349 FomulaSimplifications, 88 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 41 FomulaSimplificationsInter, 728 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 278 NumberOfCodeBlocks, 278 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 341 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 81/87 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && waterLevel == 1)) || !(\old(waterLevel) == 1)) || 0 == systemActive) - InvariantResult [Line: 950]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || 0 == systemActive - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && !(\result == 0)) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && !(\result == 0)) && waterLevel == 1)) || 0 == systemActive) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 393]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && waterLevel == tmp) && waterLevel == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || 0 == systemActive - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && waterLevel == tmp) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && waterLevel == tmp) && waterLevel == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)) - InvariantResult [Line: 383]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || 0 == systemActive - InvariantResult [Line: 940]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 933]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || 0 == systemActive) RESULT: Ultimate proved your program to be correct! [2021-12-21 13:16:07,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE