./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer --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 9399fd1973c407bf1d8cb1f825eaeba76c4c394b ......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:53:50,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:53:50,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:53:50,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:53:50,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:53:50,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:53:50,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:53:50,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:53:50,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:53:50,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:53:50,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:53:50,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:53:50,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:53:50,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:53:50,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:53:50,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:53:50,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:53:50,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:53:51,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:53:51,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:53:51,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:53:51,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:53:51,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:53:51,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:53:51,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:53:51,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:53:51,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:53:51,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:53:51,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:53:51,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:53:51,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:53:51,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:53:51,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:53:51,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:53:51,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:53:51,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:53:51,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:53:51,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:53:51,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:53:51,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:53:51,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:53:51,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:53:51,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:53:51,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:53:51,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:53:51,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:53:51,113 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:53:51,114 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:53:51,114 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:53:51,114 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:53:51,115 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:53:51,115 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:53:51,116 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:53:51,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:53:51,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:53:51,117 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:53:51,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:53:51,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:53:51,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:53:51,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:53:51,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:53:51,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:53:51,120 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:53:51,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:53:51,121 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:53:51,121 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:53:51,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:53:51,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:53:51,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:53:51,122 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:53:51,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:53:51,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:53:51,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:53:51,125 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:53:51,132 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:53:51,132 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:/tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9399fd1973c407bf1d8cb1f825eaeba76c4c394b [2020-11-29 19:53:51,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:53:51,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:53:51,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:53:51,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:53:51,569 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:53:51,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2020-11-29 19:53:51,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/data/2c1d23e04/028edc0e82f94238addb825349986cb0/FLAG0ddbbde63 [2020-11-29 19:53:52,389 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:53:52,390 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2020-11-29 19:53:52,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/data/2c1d23e04/028edc0e82f94238addb825349986cb0/FLAG0ddbbde63 [2020-11-29 19:53:52,670 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/data/2c1d23e04/028edc0e82f94238addb825349986cb0 [2020-11-29 19:53:52,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:53:52,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:53:52,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:53:52,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:53:52,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:53:52,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:53:52" (1/1) ... [2020-11-29 19:53:52,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2735a353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:52, skipping insertion in model container [2020-11-29 19:53:52,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:53:52" (1/1) ... [2020-11-29 19:53:52,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:53:52,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:53:53,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:53:53,215 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:53:53,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:53:53,424 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:53:53,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53 WrapperNode [2020-11-29 19:53:53,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:53:53,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:53:53,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:53:53,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:53:53,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... [2020-11-29 19:53:53,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... [2020-11-29 19:53:53,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:53:53,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:53:53,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:53:53,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:53:53,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... [2020-11-29 19:53:53,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... [2020-11-29 19:53:53,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... [2020-11-29 19:53:53,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... [2020-11-29 19:53:53,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... [2020-11-29 19:53:53,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... [2020-11-29 19:53:53,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... [2020-11-29 19:53:53,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:53:53,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:53:53,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:53:53,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:53:53,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:53:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:53:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:53:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:53:53,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:53:54,734 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:53:54,736 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-11-29 19:53:54,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:53:54 BoogieIcfgContainer [2020-11-29 19:53:54,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:53:54,741 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:53:54,741 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:53:54,745 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:53:54,746 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:53:54,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:53:52" (1/3) ... [2020-11-29 19:53:54,748 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@493842cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:53:54, skipping insertion in model container [2020-11-29 19:53:54,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:53:54,749 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:53" (2/3) ... [2020-11-29 19:53:54,750 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@493842cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:53:54, skipping insertion in model container [2020-11-29 19:53:54,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:53:54,750 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:53:54" (3/3) ... [2020-11-29 19:53:54,756 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2020-11-29 19:53:54,824 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:53:54,824 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:53:54,824 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:53:54,825 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:53:54,825 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:53:54,825 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:53:54,825 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:53:54,825 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:53:54,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-29 19:53:54,879 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-29 19:53:54,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:54,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:54,890 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:54,891 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:54,891 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:53:54,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-29 19:53:54,911 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-29 19:53:54,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:54,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:54,913 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:54,913 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:54,919 INFO L794 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 56#L96true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 49#L104true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 77#L196true assume 0 != main_~tmp~1; 38#L172true havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 55#L53-1true [2020-11-29 19:53:54,920 INFO L796 eck$LassoCheckResult]: Loop: 55#L53-1true assume !false; 4#L387true assume test_~splverifierCounter~0 < 4; 27#L388true test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 46#L396true assume !(0 != test_~tmp~4); 50#L396-1true test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 29#L406true assume !(0 != test_~tmp___0~2); 31#L406-1true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 8#L416true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 20#L424-2true assume !(0 != ~pumpRunning~0); 32#L223true assume !(0 != ~systemActive~0); 5#L230true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 67#L862true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 68#L53true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 55#L53-1true [2020-11-29 19:53:54,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:54,928 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:53:54,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:54,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557260569] [2020-11-29 19:53:54,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:55,276 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:55,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:55,577 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:55,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:55,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1680729467, now seen corresponding path program 1 times [2020-11-29 19:53:55,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:55,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045071631] [2020-11-29 19:53:55,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:53:55,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:53:55,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045071631] [2020-11-29 19:53:55,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:53:55,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:53:55,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544470406] [2020-11-29 19:53:55,681 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:53:55,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:53:55,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:53:55,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:53:55,701 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 3 states. [2020-11-29 19:53:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:53:55,773 INFO L93 Difference]: Finished difference Result 72 states and 98 transitions. [2020-11-29 19:53:55,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:53:55,777 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 98 transitions. [2020-11-29 19:53:55,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-29 19:53:55,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2020-11-29 19:53:55,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2020-11-29 19:53:55,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2020-11-29 19:53:55,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2020-11-29 19:53:55,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:53:55,800 INFO L691 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-29 19:53:55,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2020-11-29 19:53:55,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-29 19:53:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-29 19:53:55,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2020-11-29 19:53:55,854 INFO L714 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-29 19:53:55,854 INFO L594 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-29 19:53:55,854 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:53:55,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2020-11-29 19:53:55,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-29 19:53:55,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:55,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:55,863 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:55,864 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:55,864 INFO L794 eck$LassoCheckResult]: Stem: 200#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 172#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 173#L96 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 213#L104 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 214#L196 assume 0 != main_~tmp~1; 205#L172 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 206#L53-1 [2020-11-29 19:53:55,865 INFO L796 eck$LassoCheckResult]: Loop: 206#L53-1 assume !false; 158#L387 assume test_~splverifierCounter~0 < 4; 159#L388 test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 190#L396 assume !(0 != test_~tmp~4); 188#L396-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 194#L406 assume !(0 != test_~tmp___0~2); 195#L406-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 167#L416 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 168#L424-2 assume !(0 != ~pumpRunning~0); 182#L223 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 174#L255 assume !(0 != ~pumpRunning~0); 161#L230 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 162#L862 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 220#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 206#L53-1 [2020-11-29 19:53:55,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:55,872 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:53:55,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:55,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118253309] [2020-11-29 19:53:55,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:56,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:56,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:56,168 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:56,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:56,170 INFO L82 PathProgramCache]: Analyzing trace with hash -589998915, now seen corresponding path program 1 times [2020-11-29 19:53:56,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:56,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530136730] [2020-11-29 19:53:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:56,177 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:56,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:56,186 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:56,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:56,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1013040611, now seen corresponding path program 1 times [2020-11-29 19:53:56,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:56,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087040964] [2020-11-29 19:53:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:56,274 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:56,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:56,383 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:56,491 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-11-29 19:55:24,934 WARN L193 SmtUtils]: Spent 1.47 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:56:15,037 WARN L193 SmtUtils]: Spent 50.09 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:56:15,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:56:15 BoogieIcfgContainer [2020-11-29 19:56:15,201 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:56:15,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:56:15,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:56:15,202 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:56:15,203 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:53:54" (3/4) ... [2020-11-29 19:56:15,220 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:56:15,330 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ffcaef5d-d5f2-42ca-a627-b990c0fcc6b0/bin/uautomizer/witness.graphml [2020-11-29 19:56:15,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:56:15,332 INFO L168 Benchmark]: Toolchain (without parser) took 142649.84 ms. Allocated memory was 79.7 MB in the beginning and 121.6 MB in the end (delta: 41.9 MB). Free memory was 45.0 MB in the beginning and 53.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:15,333 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 79.7 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:56:15,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.39 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 44.8 MB in the beginning and 65.3 MB in the end (delta: -20.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:15,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.02 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 62.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:15,335 INFO L168 Benchmark]: Boogie Preprocessor took 61.69 ms. Allocated memory is still 100.7 MB. Free memory was 62.3 MB in the beginning and 60.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:15,336 INFO L168 Benchmark]: RCFGBuilder took 1166.84 ms. Allocated memory is still 100.7 MB. Free memory was 60.2 MB in the beginning and 48.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:15,337 INFO L168 Benchmark]: BuchiAutomizer took 140460.57 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 48.2 MB in the beginning and 56.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:15,338 INFO L168 Benchmark]: Witness Printer took 128.61 ms. Allocated memory is still 121.6 MB. Free memory was 56.1 MB in the beginning and 53.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:15,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 79.7 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 742.39 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 44.8 MB in the beginning and 65.3 MB in the end (delta: -20.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.02 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 62.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.69 ms. Allocated memory is still 100.7 MB. Free memory was 62.3 MB in the beginning and 60.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1166.84 ms. Allocated memory is still 100.7 MB. Free memory was 60.2 MB in the beginning and 48.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 140460.57 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 48.2 MB in the beginning and 56.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. * Witness Printer took 128.61 ms. Allocated memory is still 121.6 MB. Free memory was 56.1 MB in the beginning and 53.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 3 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 140.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 140.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 95 SDtfs, 95 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 386]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28854} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=28867, NULL=0, retValue_acc=0, NULL=28854, NULL=0, NULL=28869, NULL=28874, NULL=28870, NULL=28868, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bd8673a=0, NULL=0, tmp=0, NULL=28871, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e5bda80=0, tmp___1=0, NULL=0, NULL=0, NULL=28857, tmp___0=0, NULL=28864, cleanupTimeShifts=4, NULL=28856, NULL=28865, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a51881b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15b39a50=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cbffc80=0, systemActive=1, waterLevel=1, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=28861, \result=1, NULL=28882, head=0, pumpRunning=0, NULL=28879, \result=0, NULL=28863, NULL=28873, NULL=28875, tmp=1, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44f321b2=83, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b0192e7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27bc3bf6=0, NULL=0, NULL=28878, NULL=28881, NULL=0, NULL=0, NULL=28860, NULL=0, retValue_acc=1, tmp___2=83, tmp___0=0, NULL=28862, splverifierCounter=0, NULL=0, \result=0, NULL=28855, NULL=28872, NULL=28880, tmp=0, head=0, NULL=0, NULL=0, NULL=28859, NULL=0, NULL=0, NULL=28858, NULL=0, NULL=28877, NULL=28866, NULL=28876} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L109] int cleanupTimeShifts = 4; [L216] int pumpRunning = 0; [L217] int systemActive = 1; [L612] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L819] int waterLevel = 1; [L820] int methaneLevelCritical = 0; [L187] int retValue_acc ; [L188] int tmp ; [L100] int retValue_acc ; [L103] retValue_acc = 1 [L104] return (retValue_acc); [L194] tmp = valid_product() [L196] COND TRUE \read(tmp) [L377] int splverifierCounter ; [L378] int tmp ; [L379] int tmp___0 ; [L380] int tmp___1 ; [L381] int tmp___2 ; [L384] splverifierCounter = 0 Loop: [L386] COND TRUE 1 [L388] COND TRUE splverifierCounter < 4 [L394] tmp = __VERIFIER_nondet_int() [L396] COND FALSE !(\read(tmp)) [L404] tmp___0 = __VERIFIER_nondet_int() [L406] COND FALSE !(\read(tmp___0)) [L414] tmp___2 = __VERIFIER_nondet_int() [L416] COND TRUE \read(tmp___2) [L371] systemActive = 1 [L223] COND FALSE !(\read(pumpRunning)) [L230] COND TRUE \read(systemActive) [L252] int tmp ; [L255] COND FALSE !(\read(pumpRunning)) [L46] int tmp ; [L47] int tmp___0 ; [L858] int retValue_acc ; [L861] retValue_acc = methaneLevelCritical [L862] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...