./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product21.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_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/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 40c2ba74d1f3e4aa3f4881cec0cfe2f78c41d8ce .................................................................................................................................................................................................................................................................................................................................................................................. 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 19:43:14,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:43:14,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:43:14,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:43:14,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:43:14,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:43:14,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:43:14,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:43:14,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:43:14,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:43:14,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:43:14,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:43:14,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:43:14,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:43:14,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:43:14,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:43:14,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:43:14,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:43:14,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:43:14,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:43:14,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:43:14,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:43:14,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:43:14,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:43:14,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:43:14,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:43:14,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:43:14,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:43:14,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:43:14,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:43:14,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:43:14,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:43:14,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:43:14,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:43:14,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:43:14,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:43:14,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:43:14,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:43:14,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:43:14,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:43:14,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:43:14,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:43:14,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:43:14,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:43:14,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:43:14,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:43:14,880 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:43:14,880 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:43:14,880 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:43:14,881 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:43:14,881 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:43:14,881 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:43:14,882 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:43:14,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:43:14,883 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:43:14,883 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:43:14,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:43:14,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:43:14,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:43:14,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:43:14,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:43:14,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:43:14,884 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:43:14,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:43:14,885 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:43:14,885 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:43:14,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:43:14,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:43:14,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:43:14,886 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:43:14,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:43:14,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:43:14,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:43:14,888 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:43:14,890 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:43:14,891 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_0298a1e2-186c-4793-8e8b-00d8115bf98b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c2ba74d1f3e4aa3f4881cec0cfe2f78c41d8ce [2020-11-29 19:43:15,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:43:15,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:43:15,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:43:15,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:43:15,227 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:43:15,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c [2020-11-29 19:43:15,322 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/data/9c83e88c7/74c3b7fe5dc242c4b23b35a7d292b27b/FLAG3e632511e [2020-11-29 19:43:16,023 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:43:16,027 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c [2020-11-29 19:43:16,045 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/data/9c83e88c7/74c3b7fe5dc242c4b23b35a7d292b27b/FLAG3e632511e [2020-11-29 19:43:16,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/data/9c83e88c7/74c3b7fe5dc242c4b23b35a7d292b27b [2020-11-29 19:43:16,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:43:16,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:43:16,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:43:16,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:43:16,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:43:16,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f26496d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16, skipping insertion in model container [2020-11-29 19:43:16,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:43:16,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:43:16,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:43:16,745 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:43:16,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:43:16,870 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:43:16,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16 WrapperNode [2020-11-29 19:43:16,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:43:16,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:43:16,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:43:16,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:43:16,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:43:16,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:43:16,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:43:16,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:43:16,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... [2020-11-29 19:43:16,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:43:16,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:43:16,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:43:16,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:43:17,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/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 19:43:17,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:43:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:43:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:43:17,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:43:18,093 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:43:18,094 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-11-29 19:43:18,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:43:18 BoogieIcfgContainer [2020-11-29 19:43:18,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:43:18,097 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:43:18,097 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:43:18,100 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:43:18,101 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:43:18,101 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:43:16" (1/3) ... [2020-11-29 19:43:18,103 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5556aebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:43:18, skipping insertion in model container [2020-11-29 19:43:18,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:43:18,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:43:16" (2/3) ... [2020-11-29 19:43:18,104 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5556aebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:43:18, skipping insertion in model container [2020-11-29 19:43:18,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:43:18,104 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:43:18" (3/3) ... [2020-11-29 19:43:18,106 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product21.cil.c [2020-11-29 19:43:18,151 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:43:18,151 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:43:18,151 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:43:18,151 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:43:18,151 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:43:18,152 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:43:18,152 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:43:18,152 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:43:18,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states. [2020-11-29 19:43:18,194 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 19:43:18,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:43:18,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:43:18,224 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:43:18,225 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:18,225 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:43:18,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states. [2020-11-29 19:43:18,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2020-11-29 19:43:18,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:43:18,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:43:18,233 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:43:18,233 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:18,239 INFO L794 eck$LassoCheckResult]: Stem: 91#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~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #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(10, #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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 10#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 42#L656true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 47#L664true main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 35#L527true assume 0 != main_~tmp~4; 102#L500true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 50#L419-1true [2020-11-29 19:43:18,240 INFO L796 eck$LassoCheckResult]: Loop: 50#L419-1true assume !false; 71#L680true assume test_~splverifierCounter~0 < 4; 33#L681true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 41#L689true assume !(0 != test_~tmp~5); 43#L689-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 94#L699true assume !(0 != test_~tmp___0~1); 96#L699-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 20#L709true assume 0 != test_~tmp___2~0; 98#L715-2true assume !(0 != ~pumpRunning~0); 92#L743true assume !(0 != ~systemActive~0); 25#L750true havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 8#L588-1true __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 46#L419true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 50#L419-1true [2020-11-29 19:43:18,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:18,246 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:43:18,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:18,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257348171] [2020-11-29 19:43:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:18,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:18,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:18,707 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:18,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1680298492, now seen corresponding path program 1 times [2020-11-29 19:43:18,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:18,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726912367] [2020-11-29 19:43:18,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:18,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:18,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:18,759 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:18,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:18,764 INFO L82 PathProgramCache]: Analyzing trace with hash 33980446, now seen corresponding path program 1 times [2020-11-29 19:43:18,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:18,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116292844] [2020-11-29 19:43:18,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:43:18,932 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 19:43:18,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116292844] [2020-11-29 19:43:18,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:43:18,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:43:18,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023115337] [2020-11-29 19:43:19,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:43:19,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:43:19,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:43:19,054 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 6 states. [2020-11-29 19:43:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:43:19,360 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2020-11-29 19:43:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:43:19,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 142 transitions. [2020-11-29 19:43:19,372 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-11-29 19:43:19,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2020-11-29 19:43:19,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2020-11-29 19:43:19,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2020-11-29 19:43:19,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2020-11-29 19:43:19,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:43:19,389 INFO L691 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-11-29 19:43:19,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2020-11-29 19:43:19,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-11-29 19:43:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-29 19:43:19,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2020-11-29 19:43:19,447 INFO L714 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-11-29 19:43:19,448 INFO L594 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2020-11-29 19:43:19,448 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:43:19,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2020-11-29 19:43:19,453 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2020-11-29 19:43:19,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:43:19,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:43:19,458 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:43:19,458 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:43:19,458 INFO L794 eck$LassoCheckResult]: Stem: 291#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~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #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(10, #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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 251#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 252#L656 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 307#L664 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 299#L527 assume 0 != main_~tmp~4; 300#L500 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 309#L419-1 [2020-11-29 19:43:19,459 INFO L796 eck$LassoCheckResult]: Loop: 309#L419-1 assume !false; 257#L680 assume test_~splverifierCounter~0 < 4; 258#L681 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 290#L689 assume !(0 != test_~tmp~5); 255#L689-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 296#L699 assume !(0 != test_~tmp___0~1); 297#L699-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 272#L709 assume 0 != test_~tmp___2~0; 273#L715-2 assume !(0 != ~pumpRunning~0); 292#L743 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 284#L801 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret60, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 269#L775-1 assume !(0 != ~pumpRunning~0); 264#L750 havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 243#L588-1 __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 244#L419 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 309#L419-1 [2020-11-29 19:43:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:19,461 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:43:19,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:19,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624370536] [2020-11-29 19:43:19,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:19,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:19,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:19,584 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:19,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:19,585 INFO L82 PathProgramCache]: Analyzing trace with hash -2008522602, now seen corresponding path program 1 times [2020-11-29 19:43:19,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:19,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62693367] [2020-11-29 19:43:19,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:19,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:19,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:19,598 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:43:19,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:43:19,598 INFO L82 PathProgramCache]: Analyzing trace with hash 441062448, now seen corresponding path program 1 times [2020-11-29 19:43:19,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:43:19,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103700592] [2020-11-29 19:43:19,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:43:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:19,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:43:19,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:43:19,735 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:44:39,808 WARN L193 SmtUtils]: Spent 1.33 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:45:32,532 WARN L193 SmtUtils]: Spent 52.71 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:45:32,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:45:32 BoogieIcfgContainer [2020-11-29 19:45:32,874 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:45:32,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:45:32,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:45:32,874 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:45:32,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:43:18" (3/4) ... [2020-11-29 19:45:32,878 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:45:32,952 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0298a1e2-186c-4793-8e8b-00d8115bf98b/bin/uautomizer/witness.graphml [2020-11-29 19:45:32,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:45:32,954 INFO L168 Benchmark]: Toolchain (without parser) took 136661.82 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 83.0 MB in the beginning and 107.5 MB in the end (delta: -24.5 MB). Peak memory consumption was 75.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:32,954 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 36.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:45:32,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.29 ms. Allocated memory is still 115.3 MB. Free memory was 82.8 MB in the beginning and 81.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:32,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.65 ms. Allocated memory is still 115.3 MB. Free memory was 81.3 MB in the beginning and 77.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:32,956 INFO L168 Benchmark]: Boogie Preprocessor took 48.64 ms. Allocated memory is still 115.3 MB. Free memory was 77.9 MB in the beginning and 75.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:32,957 INFO L168 Benchmark]: RCFGBuilder took 1101.13 ms. Allocated memory is still 115.3 MB. Free memory was 75.8 MB in the beginning and 54.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:32,958 INFO L168 Benchmark]: BuchiAutomizer took 134776.99 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 54.3 MB in the beginning and 32.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:32,958 INFO L168 Benchmark]: Witness Printer took 78.13 ms. Allocated memory is still 138.4 MB. Free memory was 32.4 MB in the beginning and 107.5 MB in the end (delta: -75.2 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:45:32,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 36.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 578.29 ms. Allocated memory is still 115.3 MB. Free memory was 82.8 MB in the beginning and 81.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.65 ms. Allocated memory is still 115.3 MB. Free memory was 81.3 MB in the beginning and 77.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.64 ms. Allocated memory is still 115.3 MB. Free memory was 77.9 MB in the beginning and 75.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1101.13 ms. Allocated memory is still 115.3 MB. Free memory was 75.8 MB in the beginning and 54.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 134776.99 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 54.3 MB in the beginning and 32.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. * Witness Printer took 78.13 ms. Allocated memory is still 138.4 MB. Free memory was 32.4 MB in the beginning and 107.5 MB in the end (delta: -75.2 MB). Peak memory consumption was 2.6 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 6 locations. The remainder module has 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 134.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 134.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 137 SDtfs, 418 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 679]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31092} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f7ebb1a=0, NULL=0, NULL=0, NULL=0, NULL=31092, NULL=31114, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44f7cbe6=0, NULL=31111, NULL=31105, NULL=31113, methaneLevelCritical=0, NULL=31108, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@593db986=0, NULL=31107, tmp=0, NULL=0, NULL=0, NULL=31118, tmp=0, tmp___1=0, NULL=31103, NULL=0, NULL=0, tmp___0=0, NULL=31097, NULL=31099, NULL=31109, cleanupTimeShifts=4, NULL=31100, NULL=31096, NULL=31110, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=31119, \result=1, head=0, pumpRunning=0, \result=0, NULL=31112, NULL=31121, tmp=1, NULL=0, NULL=31116, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c8acb49=0, tmp=0, NULL=0, NULL=31095, NULL=31098, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=31102, NULL=0, tmp___2=65, NULL=31106, tmp___0=0, NULL=31094, splverifierCounter=0, NULL=0, \result=0, NULL=31101, NULL=31120, NULL=31093, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15d305fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78ee7114=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e86a9d3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e27be8=0, head=0, NULL=0, NULL=0, NULL=31104, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a1f7a56=0, NULL=31115, NULL=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; [L437] int cleanupTimeShifts = 4; [L545] int waterLevel = 1; [L546] int methaneLevelCritical = 0; [L736] int pumpRunning = 0; [L737] int systemActive = 1; [L518] int retValue_acc ; [L519] int tmp ; [L660] int retValue_acc ; [L663] retValue_acc = 1 [L664] return (retValue_acc); [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L670] int splverifierCounter ; [L671] int tmp ; [L672] int tmp___0 ; [L673] int tmp___1 ; [L674] int tmp___2 ; [L677] splverifierCounter = 0 Loop: [L679] COND TRUE 1 [L681] COND TRUE splverifierCounter < 4 [L687] tmp = __VERIFIER_nondet_int() [L689] COND FALSE !(\read(tmp)) [L697] tmp___0 = __VERIFIER_nondet_int() [L699] COND FALSE !(\read(tmp___0)) [L707] tmp___2 = __VERIFIER_nondet_int() [L709] COND TRUE \read(tmp___2) [L743] COND FALSE !(\read(pumpRunning)) [L750] COND TRUE \read(systemActive) [L798] int tmp ; [L801] COND FALSE !(\read(pumpRunning)) [L772] int tmp ; [L775] COND FALSE !(\read(pumpRunning)) [L412] int tmp ; [L413] int tmp___0 ; [L584] int retValue_acc ; [L587] retValue_acc = methaneLevelCritical [L588] return (retValue_acc); [L417] tmp = isMethaneLevelCritical() [L419] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...