./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product22.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_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/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 062932e2a77eaa56a60a5c6bf9705187ac9d312a .............................................................................................................................................................................................................................................................................................................................................................................. 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 18:52:10,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:52:10,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:52:10,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:52:10,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:52:10,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:52:10,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:52:10,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:52:10,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:52:10,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:52:10,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:52:10,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:52:10,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:52:10,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:52:10,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:52:10,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:52:10,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:52:10,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:52:10,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:52:10,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:52:10,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:52:10,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:52:10,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:52:10,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:52:10,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:52:10,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:52:10,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:52:10,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:52:10,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:52:10,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:52:10,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:52:10,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:52:10,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:52:10,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:52:10,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:52:10,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:52:10,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:52:10,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:52:10,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:52:10,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:52:10,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:52:10,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:52:10,842 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:52:10,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:52:10,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:52:10,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:52:10,845 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:52:10,846 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:52:10,846 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:52:10,846 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:52:10,852 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:52:10,852 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:52:10,853 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:52:10,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:52:10,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:52:10,854 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:52:10,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:52:10,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:52:10,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:52:10,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:52:10,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:52:10,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:52:10,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:52:10,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:52:10,857 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:52:10,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:52:10,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:52:10,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:52:10,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:52:10,859 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:52:10,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:52:10,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:52:10,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:52:10,861 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:52:10,863 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:52:10,863 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_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 062932e2a77eaa56a60a5c6bf9705187ac9d312a [2020-11-29 18:52:11,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:52:11,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:52:11,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:52:11,228 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:52:11,229 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:52:11,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c [2020-11-29 18:52:11,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/data/f820249f4/2bdc75b1d7134b6aa65177807eba368a/FLAG406825838 [2020-11-29 18:52:11,973 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:52:11,985 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/sv-benchmarks/c/product-lines/minepump_spec2_product22.cil.c [2020-11-29 18:52:12,007 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/data/f820249f4/2bdc75b1d7134b6aa65177807eba368a/FLAG406825838 [2020-11-29 18:52:12,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/data/f820249f4/2bdc75b1d7134b6aa65177807eba368a [2020-11-29 18:52:12,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:52:12,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:52:12,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:52:12,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:52:12,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:52:12,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:12,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea8885d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12, skipping insertion in model container [2020-11-29 18:52:12,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:12,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:52:12,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:52:12,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:52:12,786 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:52:12,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:52:12,976 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:52:12,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12 WrapperNode [2020-11-29 18:52:12,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:52:12,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:52:12,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:52:12,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:52:12,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:13,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:13,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:52:13,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:52:13,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:52:13,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:52:13,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:13,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:13,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:13,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:13,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:13,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:13,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... [2020-11-29 18:52:13,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:52:13,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:52:13,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:52:13,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:52:13,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/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 18:52:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:52:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:52:13,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:52:13,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:52:14,308 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:52:14,309 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-11-29 18:52:14,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:52:14 BoogieIcfgContainer [2020-11-29 18:52:14,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:52:14,314 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:52:14,314 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:52:14,319 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:52:14,320 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:52:14,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:52:12" (1/3) ... [2020-11-29 18:52:14,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39a23be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:52:14, skipping insertion in model container [2020-11-29 18:52:14,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:52:14,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:52:12" (2/3) ... [2020-11-29 18:52:14,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39a23be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:52:14, skipping insertion in model container [2020-11-29 18:52:14,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:52:14,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:52:14" (3/3) ... [2020-11-29 18:52:14,326 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product22.cil.c [2020-11-29 18:52:14,393 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:52:14,393 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:52:14,393 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:52:14,394 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:52:14,394 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:52:14,394 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:52:14,394 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:52:14,394 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:52:14,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2020-11-29 18:52:14,456 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 18:52:14,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:52:14,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:52:14,469 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:52:14,470 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:52:14,470 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:52:14,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2020-11-29 18:52:14,478 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 18:52:14,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:52:14,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:52:14,480 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:52:14,480 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:52:14,487 INFO L794 eck$LassoCheckResult]: Stem: 74#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 61#L936true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 79#L944true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 103#L500true assume 0 != main_~tmp~3; 58#L471true ~methAndRunningLastTime~0 := 0; 28#L791true havoc test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 30#L802-1true [2020-11-29 18:52:14,487 INFO L796 eck$LassoCheckResult]: Loop: 30#L802-1true assume !false; 17#L720true assume test_~splverifierCounter~0 < 4; 78#L721true test_~tmp~7 := test_#t~nondet63;havoc test_#t~nondet63; 83#L729true assume !(0 != test_~tmp~7); 85#L729-1true test_~tmp___0~1 := test_#t~nondet64;havoc test_#t~nondet64; 20#L739true assume !(0 != test_~tmp___0~1); 21#L739-1true test_~tmp___2~0 := test_#t~nondet65;havoc test_#t~nondet65; 57#L749true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 60#L757-2true assume !(0 != ~pumpRunning~0); 15#L530true assume !(0 != ~systemActive~0); 54#L537true havoc __utac_acc__Specification2_spec__2_#t~ret67, __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 25#L868-1true __utac_acc__Specification2_spec__2_#t~ret67 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret67;havoc __utac_acc__Specification2_spec__2_#t~ret67; 27#L802true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 30#L802-1true [2020-11-29 18:52:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:52:14,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 18:52:14,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:52:14,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894541714] [2020-11-29 18:52:14,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:52:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:52:14,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:52:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:52:15,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:52:15,103 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:52:15,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:52:15,108 INFO L82 PathProgramCache]: Analyzing trace with hash 4938829, now seen corresponding path program 1 times [2020-11-29 18:52:15,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:52:15,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487509315] [2020-11-29 18:52:15,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:52:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:52:15,173 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 18:52:15,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487509315] [2020-11-29 18:52:15,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:52:15,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:52:15,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585353103] [2020-11-29 18:52:15,181 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:52:15,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:52:15,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:52:15,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:52:15,205 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2020-11-29 18:52:15,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:52:15,277 INFO L93 Difference]: Finished difference Result 106 states and 150 transitions. [2020-11-29 18:52:15,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:52:15,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 150 transitions. [2020-11-29 18:52:15,285 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-11-29 18:52:15,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 99 states and 142 transitions. [2020-11-29 18:52:15,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2020-11-29 18:52:15,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2020-11-29 18:52:15,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 142 transitions. [2020-11-29 18:52:15,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:52:15,297 INFO L691 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2020-11-29 18:52:15,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 142 transitions. [2020-11-29 18:52:15,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-11-29 18:52:15,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-29 18:52:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2020-11-29 18:52:15,339 INFO L714 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2020-11-29 18:52:15,340 INFO L594 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2020-11-29 18:52:15,340 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:52:15,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 142 transitions. [2020-11-29 18:52:15,343 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2020-11-29 18:52:15,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:52:15,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:52:15,345 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:52:15,345 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:52:15,345 INFO L794 eck$LassoCheckResult]: Stem: 303#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 248#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 249#L936 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 297#L944 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 307#L500 assume 0 != main_~tmp~3; 295#L471 ~methAndRunningLastTime~0 := 0; 265#L791 havoc test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 264#L802-1 [2020-11-29 18:52:15,346 INFO L796 eck$LassoCheckResult]: Loop: 264#L802-1 assume !false; 253#L720 assume test_~splverifierCounter~0 < 4; 254#L721 test_~tmp~7 := test_#t~nondet63;havoc test_#t~nondet63; 306#L729 assume !(0 != test_~tmp~7); 283#L729-1 test_~tmp___0~1 := test_#t~nondet64;havoc test_#t~nondet64; 256#L739 assume !(0 != test_~tmp___0~1); 229#L739-1 test_~tmp___2~0 := test_#t~nondet65;havoc test_#t~nondet65; 257#L749 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 294#L757-2 assume !(0 != ~pumpRunning~0); 250#L530 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 232#L588 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret43, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 233#L562-1 assume !(0 != ~pumpRunning~0); 238#L537 havoc __utac_acc__Specification2_spec__2_#t~ret67, __utac_acc__Specification2_spec__2_#t~ret68, __utac_acc__Specification2_spec__2_~tmp~8, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~8;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 261#L868-1 __utac_acc__Specification2_spec__2_#t~ret67 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~8 := __utac_acc__Specification2_spec__2_#t~ret67;havoc __utac_acc__Specification2_spec__2_#t~ret67; 262#L802 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~8);~methAndRunningLastTime~0 := 0; 264#L802-1 [2020-11-29 18:52:15,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:52:15,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 18:52:15,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:52:15,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652819428] [2020-11-29 18:52:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:52:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:52:15,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:52:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:52:15,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:52:15,629 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:52:15,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:52:15,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1698133377, now seen corresponding path program 1 times [2020-11-29 18:52:15,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:52:15,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618550244] [2020-11-29 18:52:15,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:52:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:52:15,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:52:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:52:15,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:52:15,661 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:52:15,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:52:15,662 INFO L82 PathProgramCache]: Analyzing trace with hash 235891833, now seen corresponding path program 1 times [2020-11-29 18:52:15,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:52:15,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206775814] [2020-11-29 18:52:15,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:52:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:52:15,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:52:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:52:15,855 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:52:15,876 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:52:15,987 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-29 18:53:44,115 WARN L193 SmtUtils]: Spent 1.47 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 18:54:41,682 WARN L193 SmtUtils]: Spent 57.53 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 18:54:41,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:54:41 BoogieIcfgContainer [2020-11-29 18:54:41,897 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:54:41,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:54:41,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:54:41,898 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:54:41,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:52:14" (3/4) ... [2020-11-29 18:54:41,902 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:54:41,977 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b3dbdf60-f9dd-46ad-8214-b1f3d4ba3e46/bin/uautomizer/witness.graphml [2020-11-29 18:54:41,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:54:41,980 INFO L168 Benchmark]: Toolchain (without parser) took 149690.89 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 78.9 MB in the beginning and 73.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:41,981 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 77.6 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 33.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:54:41,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.51 ms. Allocated memory is still 111.1 MB. Free memory was 78.7 MB in the beginning and 76.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:41,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.36 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 73.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:41,984 INFO L168 Benchmark]: Boogie Preprocessor took 75.62 ms. Allocated memory is still 111.1 MB. Free memory was 73.0 MB in the beginning and 70.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:41,985 INFO L168 Benchmark]: RCFGBuilder took 1154.69 ms. Allocated memory is still 111.1 MB. Free memory was 70.9 MB in the beginning and 64.8 MB in the end (delta: 6.1 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:41,986 INFO L168 Benchmark]: BuchiAutomizer took 147583.34 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 64.8 MB in the beginning and 75.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 63.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:41,987 INFO L168 Benchmark]: Witness Printer took 79.75 ms. Allocated memory is still 134.2 MB. Free memory was 75.9 MB in the beginning and 73.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:54:41,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 77.6 MB. Free memory was 35.9 MB in the beginning and 35.9 MB in the end (delta: 33.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.51 ms. Allocated memory is still 111.1 MB. Free memory was 78.7 MB in the beginning and 76.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.36 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 73.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.62 ms. Allocated memory is still 111.1 MB. Free memory was 73.0 MB in the beginning and 70.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1154.69 ms. Allocated memory is still 111.1 MB. Free memory was 70.9 MB in the beginning and 64.8 MB in the end (delta: 6.1 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 147583.34 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 64.8 MB in the beginning and 75.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 63.7 MB. Max. memory is 16.1 GB. * Witness Printer took 79.75 ms. Allocated memory is still 134.2 MB. Free memory was 75.9 MB in the beginning and 73.8 MB in the end (delta: 2.1 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 99 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 147.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 147.2s. 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 99 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 147 SDtfs, 147 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: 719]: 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 {NULL=0, NULL=0, NULL=32222, NULL=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47ad73db=0, NULL=0, NULL=32242, NULL=32244, methaneLevelCritical=0, NULL=32234, retValue_acc=1, NULL=32232, tmp=0, tmp=0, tmp___1=0, NULL=32230, NULL=0, NULL=0, NULL=32238, NULL=32241, NULL=32245, cleanupTimeShifts=4, NULL=32237, NULL=32240, NULL=32224, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9e5fe0=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62e51386=0, NULL=0, NULL=32235, NULL=0, NULL=0, NULL=0, NULL=32218, \result=1, head=0, pumpRunning=0, NULL=32243, NULL=32229, \result=0, tmp=1, NULL=32236, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=32239, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a1b7e8e=0, NULL=0, NULL=32231, NULL=0, NULL=0, NULL=32227, NULL=0, tmp___2=62, NULL=32228, tmp___0=0, NULL=32225, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=32226, NULL=32220, NULL=32233, NULL=32223, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eb03a2f=62, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@467553b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3390de64=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f1d693c=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73cf98c6=0, NULL=32219, NULL=0, NULL=0, NULL=32221, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L522] int pumpRunning = 0; [L523] int systemActive = 1; [L785] int methAndRunningLastTime ; [L825] int waterLevel = 1; [L826] int methaneLevelCritical = 0; [L491] int retValue_acc ; [L492] int tmp ; [L940] int retValue_acc ; [L943] retValue_acc = 1 [L944] return (retValue_acc); [L498] tmp = valid_product() [L500] COND TRUE \read(tmp) [L790] methAndRunningLastTime = 0 [L710] int splverifierCounter ; [L711] int tmp ; [L712] int tmp___0 ; [L713] int tmp___1 ; [L714] int tmp___2 ; [L717] splverifierCounter = 0 Loop: [L719] COND TRUE 1 [L721] COND TRUE splverifierCounter < 4 [L727] tmp = __VERIFIER_nondet_int() [L729] COND FALSE !(\read(tmp)) [L737] tmp___0 = __VERIFIER_nondet_int() [L739] COND FALSE !(\read(tmp___0)) [L747] tmp___2 = __VERIFIER_nondet_int() [L749] COND TRUE \read(tmp___2) [L704] systemActive = 1 [L530] COND FALSE !(\read(pumpRunning)) [L537] COND TRUE \read(systemActive) [L585] int tmp ; [L588] COND FALSE !(\read(pumpRunning)) [L559] int tmp ; [L562] COND FALSE !(\read(pumpRunning)) [L795] int tmp ; [L796] int tmp___0 ; [L864] int retValue_acc ; [L867] retValue_acc = methaneLevelCritical [L868] return (retValue_acc); [L800] tmp = isMethaneLevelCritical() [L802] COND FALSE !(\read(tmp)) [L818] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...