./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-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(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df939eacd07971dbe984826c04d07f64706b0716dba249ed14f3095e44967ff6 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:59:46,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:59:46,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:59:46,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:59:46,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:59:46,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:59:46,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:59:46,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:59:46,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:59:46,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:59:46,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:59:46,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:59:46,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:59:46,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:59:46,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:59:46,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:59:46,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:59:46,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:59:46,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:59:46,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:59:46,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:59:46,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:59:46,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:59:46,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:59:46,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:59:46,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:59:46,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:59:46,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:59:46,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:59:46,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:59:46,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:59:46,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:59:46,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:59:46,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:59:46,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:59:46,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:59:46,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:59:46,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:59:46,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:59:46,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:59:46,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:59:46,637 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-16 09:59:46,675 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:59:46,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:59:46,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:59:46,675 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:59:46,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:59:46,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:59:46,677 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:59:46,677 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:59:46,677 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:59:46,677 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:59:46,678 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:59:46,678 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:59:46,678 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:59:46,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:59:46,678 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:59:46,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:59:46,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:59:46,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:59:46,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:59:46,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:59:46,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:59:46,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:59:46,680 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:59:46,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:59:46,680 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:59:46,680 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:59:46,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:59:46,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:59:46,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:59:46,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:59:46,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:59:46,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:59:46,682 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:59:46,682 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df939eacd07971dbe984826c04d07f64706b0716dba249ed14f3095e44967ff6 [2021-12-16 09:59:46,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:59:46,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:59:46,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:59:46,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:59:46,922 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:59:46,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2021-12-16 09:59:46,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b33865c/7f3c7f204f4448238fe2d0c2e7cac9dc/FLAG51463e6f7 [2021-12-16 09:59:47,385 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:59:47,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2021-12-16 09:59:47,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b33865c/7f3c7f204f4448238fe2d0c2e7cac9dc/FLAG51463e6f7 [2021-12-16 09:59:47,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b33865c/7f3c7f204f4448238fe2d0c2e7cac9dc [2021-12-16 09:59:47,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:59:47,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:59:47,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:59:47,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:59:47,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:59:47,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8897ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47, skipping insertion in model container [2021-12-16 09:59:47,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:59:47,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:59:47,698 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_spec2_product23.cil.c[13383,13396] [2021-12-16 09:59:47,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:59:47,724 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:59:47,788 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_spec2_product23.cil.c[13383,13396] [2021-12-16 09:59:47,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:59:47,821 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:59:47,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47 WrapperNode [2021-12-16 09:59:47,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:59:47,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:59:47,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:59:47,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:59:47,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,878 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 80, statements flattened = 580 [2021-12-16 09:59:47,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:59:47,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:59:47,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:59:47,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:59:47,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:59:47,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:59:47,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:59:47,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:59:47,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (1/1) ... [2021-12-16 09:59:47,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:59:47,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:59:47,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-16 09:59:47,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-16 09:59:47,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:59:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:59:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:59:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:59:48,007 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:59:48,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:59:48,257 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:59:48,262 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:59:48,275 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 09:59:48,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:59:48 BoogieIcfgContainer [2021-12-16 09:59:48,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:59:48,278 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:59:48,278 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:59:48,281 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:59:48,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:59:48,281 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:59:47" (1/3) ... [2021-12-16 09:59:48,282 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32d0fd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:59:48, skipping insertion in model container [2021-12-16 09:59:48,282 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:59:48,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:59:47" (2/3) ... [2021-12-16 09:59:48,296 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32d0fd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:59:48, skipping insertion in model container [2021-12-16 09:59:48,296 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:59:48,296 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:59:48" (3/3) ... [2021-12-16 09:59:48,297 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product23.cil.c [2021-12-16 09:59:48,337 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:59:48,337 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:59:48,337 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:59:48,338 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:59:48,338 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:59:48,338 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:59:48,338 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:59:48,338 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:59:48,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 158 states, 157 states have (on average 1.356687898089172) internal successors, (213), 157 states have internal predecessors, (213), 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) [2021-12-16 09:59:48,387 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-12-16 09:59:48,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:59:48,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:59:48,395 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:48,395 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:48,395 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:59:48,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 158 states, 157 states have (on average 1.356687898089172) internal successors, (213), 157 states have internal predecessors, (213), 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) [2021-12-16 09:59:48,411 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-12-16 09:59:48,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:59:48,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:59:48,414 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:48,415 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:48,422 INFO L791 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 42#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 45#L853true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 17#L846true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 32#L861true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 44#L949true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 97#L925true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 113#L154true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 13#L575-2true [2021-12-16 09:59:48,423 INFO L793 eck$LassoCheckResult]: Loop: 13#L575-2true assume !false; 108#L576true assume test_~splverifierCounter~0#1 < 4; 74#L577true test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 90#L585true assume !(0 != test_~tmp~4#1); 46#L585-2true test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 158#L595true assume !(0 != test_~tmp___0~1#1); 63#L595-2true test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 68#L605true assume 0 != test_~tmp___2~0#1; 116#L611-2true assume { :begin_inline_timeShift } true; 48#L642true assume !(0 != ~pumpRunning~0); 36#L642-2true assume !(0 != ~systemActive~0); 78#L649-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret9#1, __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 87#L100-1true __utac_acc__Specification2_spec__2_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret9#1;havoc __utac_acc__Specification2_spec__2_#t~ret9#1; 11#L165true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 15#L165-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 29#L659true assume { :end_inline_timeShift } true; 13#L575-2true [2021-12-16 09:59:48,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:48,433 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-16 09:59:48,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:48,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535091886] [2021-12-16 09:59:48,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:48,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:48,558 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:48,598 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:48,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:48,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1753789110, now seen corresponding path program 1 times [2021-12-16 09:59:48,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:48,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995568439] [2021-12-16 09:59:48,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:48,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:48,624 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:48,633 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:48,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1916076493, now seen corresponding path program 1 times [2021-12-16 09:59:48,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:48,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400481631] [2021-12-16 09:59:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:48,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:59:48,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:59:48,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:59:48,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400481631] [2021-12-16 09:59:48,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400481631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:59:48,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:59:48,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 09:59:48,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495339772] [2021-12-16 09:59:48,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:59:48,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:59:48,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 09:59:48,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-16 09:59:48,929 INFO L87 Difference]: Start difference. First operand has 158 states, 157 states have (on average 1.356687898089172) internal successors, (213), 157 states have internal predecessors, (213), 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) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-12-16 09:59:49,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:59:49,034 INFO L93 Difference]: Finished difference Result 369 states and 480 transitions. [2021-12-16 09:59:49,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:59:49,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 369 states and 480 transitions. [2021-12-16 09:59:49,048 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 237 [2021-12-16 09:59:49,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 369 states to 339 states and 450 transitions. [2021-12-16 09:59:49,053 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 339 [2021-12-16 09:59:49,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 339 [2021-12-16 09:59:49,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 339 states and 450 transitions. [2021-12-16 09:59:49,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:59:49,056 INFO L681 BuchiCegarLoop]: Abstraction has 339 states and 450 transitions. [2021-12-16 09:59:49,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states and 450 transitions. [2021-12-16 09:59:49,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 200. [2021-12-16 09:59:49,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 200 states have (on average 1.33) internal successors, (266), 199 states have internal predecessors, (266), 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) [2021-12-16 09:59:49,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 266 transitions. [2021-12-16 09:59:49,081 INFO L704 BuchiCegarLoop]: Abstraction has 200 states and 266 transitions. [2021-12-16 09:59:49,081 INFO L587 BuchiCegarLoop]: Abstraction has 200 states and 266 transitions. [2021-12-16 09:59:49,081 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:59:49,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 200 states and 266 transitions. [2021-12-16 09:59:49,083 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2021-12-16 09:59:49,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:59:49,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:59:49,083 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:49,083 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:59:49,084 INFO L791 eck$LassoCheckResult]: Stem: 690#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 612#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 613#L853 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 575#L846 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 576#L861 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 599#L949 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 614#L925 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 665#L154 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 565#L575-2 [2021-12-16 09:59:49,084 INFO L793 eck$LassoCheckResult]: Loop: 565#L575-2 assume !false; 566#L576 assume test_~splverifierCounter~0#1 < 4; 650#L577 test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 651#L585 assume !(0 != test_~tmp~4#1); 615#L585-2 test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 616#L595 assume !(0 != test_~tmp___0~1#1); 555#L595-2 test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 637#L605 assume 0 != test_~tmp___2~0#1; 618#L611-2 assume { :begin_inline_timeShift } true; 620#L642 assume !(0 != ~pumpRunning~0); 582#L642-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 605#L700 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret38#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 628#L674-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 629#L666-3 assume { :end_inline_processEnvironment__wrappee__base } true; 598#L674-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 603#L700-1 assume { :end_inline_processEnvironment } true; 649#L649-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret9#1, __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 652#L100-1 __utac_acc__Specification2_spec__2_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret9#1;havoc __utac_acc__Specification2_spec__2_#t~ret9#1; 560#L165 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 562#L165-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 569#L659 assume { :end_inline_timeShift } true; 565#L575-2 [2021-12-16 09:59:49,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:49,085 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-16 09:59:49,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:49,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485462119] [2021-12-16 09:59:49,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:49,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:49,093 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:49,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:49,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:49,101 INFO L85 PathProgramCache]: Analyzing trace with hash -2045589679, now seen corresponding path program 1 times [2021-12-16 09:59:49,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:49,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261587862] [2021-12-16 09:59:49,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:49,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:49,105 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:49,108 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:59:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1848000520, now seen corresponding path program 1 times [2021-12-16 09:59:49,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:59:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56399033] [2021-12-16 09:59:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:59:49,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:59:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:49,117 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:59:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:59:49,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:59:51,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 09:59:51 BoogieIcfgContainer [2021-12-16 09:59:51,648 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 09:59:51,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:59:51,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:59:51,649 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:59:51,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:59:48" (3/4) ... [2021-12-16 09:59:51,651 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-16 09:59:51,687 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 09:59:51,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:59:51,688 INFO L158 Benchmark]: Toolchain (without parser) took 4276.42ms. Allocated memory was 115.3MB in the beginning and 268.4MB in the end (delta: 153.1MB). Free memory was 86.9MB in the beginning and 156.5MB in the end (delta: -69.6MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2021-12-16 09:59:51,688 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:59:51,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.04ms. Allocated memory is still 115.3MB. Free memory was 86.8MB in the beginning and 81.7MB in the end (delta: 5.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 09:59:51,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.71ms. Allocated memory is still 115.3MB. Free memory was 81.7MB in the beginning and 78.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 09:59:51,690 INFO L158 Benchmark]: Boogie Preprocessor took 24.89ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 76.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:59:51,690 INFO L158 Benchmark]: RCFGBuilder took 371.54ms. Allocated memory was 115.3MB in the beginning and 197.1MB in the end (delta: 81.8MB). Free memory was 76.1MB in the beginning and 168.6MB in the end (delta: -92.5MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2021-12-16 09:59:51,690 INFO L158 Benchmark]: BuchiAutomizer took 3370.60ms. Allocated memory was 197.1MB in the beginning and 268.4MB in the end (delta: 71.3MB). Free memory was 168.6MB in the beginning and 158.6MB in the end (delta: 10.0MB). Peak memory consumption was 116.3MB. Max. memory is 16.1GB. [2021-12-16 09:59:51,693 INFO L158 Benchmark]: Witness Printer took 38.63ms. Allocated memory is still 268.4MB. Free memory was 158.6MB in the beginning and 156.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:59:51,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.04ms. Allocated memory is still 115.3MB. Free memory was 86.8MB in the beginning and 81.7MB in the end (delta: 5.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.71ms. Allocated memory is still 115.3MB. Free memory was 81.7MB in the beginning and 78.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.89ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 76.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.54ms. Allocated memory was 115.3MB in the beginning and 197.1MB in the end (delta: 81.8MB). Free memory was 76.1MB in the beginning and 168.6MB in the end (delta: -92.5MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3370.60ms. Allocated memory was 197.1MB in the beginning and 268.4MB in the end (delta: 71.3MB). Free memory was 168.6MB in the beginning and 158.6MB in the end (delta: 10.0MB). Peak memory consumption was 116.3MB. Max. memory is 16.1GB. * Witness Printer took 38.63ms. Allocated memory is still 268.4MB. Free memory was 158.6MB in the beginning and 156.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 200 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 139 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 200 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 938 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 938 mSDsluCounter, 1025 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 817 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 208 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 575]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69306c8a=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1461c92b=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ab9a2a3=0, methaneLevelCritical=0, tmp=0, retValue_acc=1, \result=0, retValue_acc=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c384dfa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22c2222b=29, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@187d8715=0, tmp=0, tmp=1, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@709b0a4c=0, head=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2de65b94=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fb89c51=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 575]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L148] int methAndRunningLastTime ; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L635] int pumpRunning = 0; [L636] int systemActive = 1; [L866] int cleanupTimeShifts = 4; [L940] int retValue_acc ; [L941] int tmp ; [L945] FCALL select_helpers() [L946] FCALL select_features() [L947] CALL, EXPR valid_product() [L857] int retValue_acc ; [L860] retValue_acc = 1 [L861] return (retValue_acc); [L947] RET, EXPR valid_product() [L947] tmp = valid_product() [L949] COND TRUE \read(tmp) [L951] FCALL setup() [L952] CALL runTest() [L933] CALL __utac_acc__Specification2_spec__1() [L153] methAndRunningLastTime = 0 [L933] RET __utac_acc__Specification2_spec__1() [L934] CALL test() [L566] int splverifierCounter ; [L567] int tmp ; [L568] int tmp___0 ; [L569] int tmp___1 ; [L570] int tmp___2 ; [L573] splverifierCounter = 0 Loop: [L575] COND TRUE 1 [L577] COND TRUE splverifierCounter < 4 [L583] tmp = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp)) [L593] tmp___0 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___0)) [L603] tmp___2 = __VERIFIER_nondet_int() [L605] COND TRUE \read(tmp___2) [L620] CALL timeShift() [L642] COND FALSE !(\read(pumpRunning)) [L649] COND TRUE \read(systemActive) [L651] CALL processEnvironment() [L697] int tmp ; [L700] COND FALSE !(\read(pumpRunning)) [L715] CALL processEnvironment__wrappee__lowWaterSensor() [L671] int tmp ; [L674] COND FALSE !(\read(pumpRunning)) [L689] FCALL processEnvironment__wrappee__base() [L715] RET processEnvironment__wrappee__lowWaterSensor() [L651] RET processEnvironment() [L657] CALL __utac_acc__Specification2_spec__2() [L158] int tmp ; [L159] int tmp___0 ; [L163] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L163] RET, EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L181] methAndRunningLastTime = 0 [L657] RET __utac_acc__Specification2_spec__2() [L620] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-16 09:59:51,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)