./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product15.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_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product15.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/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 b5bcd967813a4771a3b092fbeb97197c1f3ff6f2 ................................................................................................................................................................................................................................................................................................................................................................................ 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 20:57:19,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:57:19,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:57:19,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:57:19,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:57:19,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:57:19,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:57:19,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:57:19,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:57:19,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:57:19,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:57:19,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:57:19,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:57:19,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:57:19,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:57:19,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:57:19,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:57:19,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:57:19,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:57:19,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:57:19,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:57:19,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:57:19,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:57:19,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:57:19,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:57:19,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:57:19,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:57:19,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:57:19,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:57:19,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:57:19,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:57:19,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:57:19,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:57:19,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:57:19,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:57:19,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:57:19,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:57:19,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:57:19,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:57:19,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:57:19,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:57:19,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:57:19,779 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:57:19,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:57:19,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:57:19,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:57:19,782 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:57:19,782 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:57:19,782 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:57:19,783 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:57:19,783 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:57:19,784 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:57:19,784 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:57:19,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:57:19,785 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:57:19,786 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:57:19,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:57:19,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:57:19,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:57:19,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:57:19,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:57:19,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:57:19,788 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:57:19,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:57:19,788 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:57:19,788 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:57:19,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:57:19,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:57:19,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:57:19,790 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:57:19,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:57:19,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:57:19,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:57:19,791 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:57:19,792 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:57:19,792 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_5508b2ce-5eaf-48dd-a09b-8122178176cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5bcd967813a4771a3b092fbeb97197c1f3ff6f2 [2020-11-29 20:57:20,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:57:20,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:57:20,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:57:20,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:57:20,102 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:57:20,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product15.cil.c [2020-11-29 20:57:20,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/data/d22d834ef/825aba1a2f0e4c73b6255202f0027186/FLAGe9b1888e9 [2020-11-29 20:57:20,923 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:57:20,924 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/sv-benchmarks/c/product-lines/minepump_spec1_product15.cil.c [2020-11-29 20:57:20,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/data/d22d834ef/825aba1a2f0e4c73b6255202f0027186/FLAGe9b1888e9 [2020-11-29 20:57:21,163 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/data/d22d834ef/825aba1a2f0e4c73b6255202f0027186 [2020-11-29 20:57:21,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:57:21,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:57:21,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:57:21,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:57:21,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:57:21,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c03cf3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21, skipping insertion in model container [2020-11-29 20:57:21,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:57:21,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:57:21,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:57:21,606 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:57:21,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:57:21,777 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:57:21,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21 WrapperNode [2020-11-29 20:57:21,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:57:21,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:57:21,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:57:21,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:57:21,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:57:21,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:57:21,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:57:21,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:57:21,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... [2020-11-29 20:57:21,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:57:21,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:57:21,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:57:21,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:57:21,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/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 20:57:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:57:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:57:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:57:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:57:23,058 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:57:23,058 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-29 20:57:23,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:57:23 BoogieIcfgContainer [2020-11-29 20:57:23,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:57:23,061 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:57:23,061 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:57:23,065 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:57:23,066 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:57:23,066 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:57:21" (1/3) ... [2020-11-29 20:57:23,067 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c618f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:57:23, skipping insertion in model container [2020-11-29 20:57:23,068 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:57:23,068 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:57:21" (2/3) ... [2020-11-29 20:57:23,068 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c618f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:57:23, skipping insertion in model container [2020-11-29 20:57:23,068 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:57:23,069 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:57:23" (3/3) ... [2020-11-29 20:57:23,070 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product15.cil.c [2020-11-29 20:57:23,120 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:57:23,121 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:57:23,121 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:57:23,121 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:57:23,121 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:57:23,121 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:57:23,122 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:57:23,122 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:57:23,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states. [2020-11-29 20:57:23,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 20:57:23,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:57:23,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:57:23,174 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:57:23,174 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:57:23,174 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:57:23,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states. [2020-11-29 20:57:23,189 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 20:57:23,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:57:23,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:57:23,191 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:57:23,191 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:57:23,203 INFO L794 eck$LassoCheckResult]: Stem: 38#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 5#L252true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 48#L260true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 49#L132true assume 0 != main_~tmp~0; 65#L105true havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 27#L275-1true [2020-11-29 20:57:23,203 INFO L796 eck$LassoCheckResult]: Loop: 27#L275-1true assume !false; 62#L481true assume test_~splverifierCounter~0 < 4; 4#L482true test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 32#L490true assume !(0 != test_~tmp~4); 10#L490-1true test_~tmp___0~1 := test_#t~nondet41;havoc test_#t~nondet41; 67#L500true assume !(0 != test_~tmp___0~1); 69#L500-1true test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 56#L510true assume 0 != test_~tmp___2~0; 22#L516-1true assume !(0 != ~pumpRunning~0); 50#L312true assume !(0 != ~systemActive~0); 55#L319true havoc __utac_acc__Specification1_spec__1_#t~ret19, __utac_acc__Specification1_spec__1_#t~ret20, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 11#L193-1true __utac_acc__Specification1_spec__1_#t~ret19 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret19;havoc __utac_acc__Specification1_spec__1_#t~ret19; 30#L275true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 27#L275-1true [2020-11-29 20:57:23,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:23,214 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 20:57:23,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:23,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528094390] [2020-11-29 20:57:23,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:23,478 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:23,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:23,704 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:23,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310515, now seen corresponding path program 1 times [2020-11-29 20:57:23,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:23,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331100073] [2020-11-29 20:57:23,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:23,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:23,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:23,759 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:23,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:23,772 INFO L82 PathProgramCache]: Analyzing trace with hash 40968423, now seen corresponding path program 1 times [2020-11-29 20:57:23,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:23,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028216335] [2020-11-29 20:57:23,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:23,958 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 20:57:23,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028216335] [2020-11-29 20:57:23,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:57:23,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:57:23,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032976595] [2020-11-29 20:57:24,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:24,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:57:24,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:24,102 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 6 states. [2020-11-29 20:57:24,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:24,531 INFO L93 Difference]: Finished difference Result 180 states and 246 transitions. [2020-11-29 20:57:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:57:24,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 246 transitions. [2020-11-29 20:57:24,548 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 113 [2020-11-29 20:57:24,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 159 states and 225 transitions. [2020-11-29 20:57:24,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2020-11-29 20:57:24,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2020-11-29 20:57:24,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 225 transitions. [2020-11-29 20:57:24,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:57:24,572 INFO L691 BuchiCegarLoop]: Abstraction has 159 states and 225 transitions. [2020-11-29 20:57:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 225 transitions. [2020-11-29 20:57:24,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 102. [2020-11-29 20:57:24,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-29 20:57:24,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2020-11-29 20:57:24,626 INFO L714 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-29 20:57:24,626 INFO L594 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2020-11-29 20:57:24,627 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:57:24,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2020-11-29 20:57:24,636 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2020-11-29 20:57:24,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:57:24,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:57:24,639 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:57:24,639 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:57:24,640 INFO L794 eck$LassoCheckResult]: Stem: 317#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 279#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 273#L252 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 274#L260 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 323#L132 assume 0 != main_~tmp~0; 324#L105 havoc test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 304#L275-1 [2020-11-29 20:57:24,641 INFO L796 eck$LassoCheckResult]: Loop: 304#L275-1 assume !false; 305#L481 assume test_~splverifierCounter~0 < 4; 271#L482 test_~tmp~4 := test_#t~nondet40;havoc test_#t~nondet40; 272#L490 assume !(0 != test_~tmp~4); 276#L490-1 test_~tmp___0~1 := test_#t~nondet41;havoc test_#t~nondet41; 282#L500 assume !(0 != test_~tmp___0~1); 312#L500-1 test_~tmp___2~0 := test_#t~nondet42;havoc test_#t~nondet42; 328#L510 assume 0 != test_~tmp___2~0; 293#L516-1 assume !(0 != ~pumpRunning~0); 295#L312 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret21, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 298#L344 assume !(0 != ~pumpRunning~0); 299#L319 havoc __utac_acc__Specification1_spec__1_#t~ret19, __utac_acc__Specification1_spec__1_#t~ret20, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 283#L193-1 __utac_acc__Specification1_spec__1_#t~ret19 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret19;havoc __utac_acc__Specification1_spec__1_#t~ret19; 284#L275 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 304#L275-1 [2020-11-29 20:57:24,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:24,643 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 20:57:24,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:24,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15124515] [2020-11-29 20:57:24,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:24,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:24,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:24,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:24,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:24,838 INFO L82 PathProgramCache]: Analyzing trace with hash -353546755, now seen corresponding path program 1 times [2020-11-29 20:57:24,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:24,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719187857] [2020-11-29 20:57:24,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:24,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:24,848 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:24,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:57:24,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:24,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492771, now seen corresponding path program 1 times [2020-11-29 20:57:24,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:57:24,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397085319] [2020-11-29 20:57:24,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:57:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:24,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:57:24,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:57:24,960 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:58:43,557 WARN L193 SmtUtils]: Spent 1.31 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 20:59:37,025 WARN L193 SmtUtils]: Spent 53.46 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 20:59:37,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:59:37 BoogieIcfgContainer [2020-11-29 20:59:37,332 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:59:37,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:59:37,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:59:37,333 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:59:37,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:57:23" (3/4) ... [2020-11-29 20:59:37,336 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:59:37,384 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5508b2ce-5eaf-48dd-a09b-8122178176cf/bin/uautomizer/witness.graphml [2020-11-29 20:59:37,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:59:37,393 INFO L168 Benchmark]: Toolchain (without parser) took 136224.63 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 83.2 MB in the beginning and 91.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:59:37,394 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory is still 43.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:59:37,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.83 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 74.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:59:37,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.49 ms. Allocated memory is still 107.0 MB. Free memory was 74.0 MB in the beginning and 71.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:59:37,400 INFO L168 Benchmark]: Boogie Preprocessor took 49.60 ms. Allocated memory is still 107.0 MB. Free memory was 71.0 MB in the beginning and 69.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:59:37,400 INFO L168 Benchmark]: RCFGBuilder took 1148.92 ms. Allocated memory is still 107.0 MB. Free memory was 68.9 MB in the beginning and 56.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:59:37,401 INFO L168 Benchmark]: BuchiAutomizer took 134271.15 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 56.1 MB in the beginning and 93.6 MB in the end (delta: -37.5 MB). Peak memory consumption was 62.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:59:37,402 INFO L168 Benchmark]: Witness Printer took 58.78 ms. Allocated memory is still 140.5 MB. Free memory was 93.6 MB in the beginning and 91.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:59:37,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory is still 43.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 611.83 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 74.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.49 ms. Allocated memory is still 107.0 MB. Free memory was 74.0 MB in the beginning and 71.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.60 ms. Allocated memory is still 107.0 MB. Free memory was 71.0 MB in the beginning and 69.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1148.92 ms. Allocated memory is still 107.0 MB. Free memory was 68.9 MB in the beginning and 56.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 134271.15 ms. Allocated memory was 107.0 MB in the beginning and 140.5 MB in the end (delta: 33.6 MB). Free memory was 56.1 MB in the beginning and 93.6 MB in the end (delta: -37.5 MB). Peak memory consumption was 62.1 MB. Max. memory is 16.1 GB. * Witness Printer took 58.78 ms. Allocated memory is still 140.5 MB. Free memory was 93.6 MB in the beginning and 91.5 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 6 locations. The remainder module has 102 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 134.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 133.5s. Construction of modules took 0.2s. 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, 57 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 102 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 89 SDtfs, 334 SDslu, 497 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 480]: 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=47616, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=1, NULL=47597, NULL=47592, NULL=47614, NULL=47608, NULL=47612, methaneLevelCritical=0, NULL=47610, NULL=0, tmp=0, NULL=47594, NULL=0, NULL=0, tmp___1=0, NULL=47596, NULL=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39f34cef=0, NULL=47609, cleanupTimeShifts=4, NULL=47607, NULL=47600, NULL=47618, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3aedeb44=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a997bf1=68, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1229215d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51e48aa7=0, NULL=0, systemActive=1, waterLevel=1, NULL=47606, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=47605, NULL=47617, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74278767=0, tmp=0, NULL=47595, NULL=0, retValue_acc=1, NULL=47611, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74cff751=0, NULL=0, NULL=0, NULL=47613, NULL=0, NULL=0, NULL=2, NULL=0, tmp___2=68, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=47598, NULL=20558, NULL=47593, NULL=47591, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dbd6f04=0, NULL=47599, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=47601, NULL=47590, NULL=47615} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L150] int waterLevel = 1; [L151] int methaneLevelCritical = 0; [L305] int pumpRunning = 0; [L306] int systemActive = 1; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L256] int retValue_acc ; [L259] retValue_acc = 1 [L260] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L471] int splverifierCounter ; [L472] int tmp ; [L473] int tmp___0 ; [L474] int tmp___1 ; [L475] int tmp___2 ; [L478] splverifierCounter = 0 Loop: [L480] COND TRUE 1 [L482] COND TRUE splverifierCounter < 4 [L488] tmp = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp)) [L498] tmp___0 = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp___0)) [L508] tmp___2 = __VERIFIER_nondet_int() [L510] COND TRUE \read(tmp___2) [L312] COND FALSE !(\read(pumpRunning)) [L319] COND TRUE \read(systemActive) [L341] int tmp ; [L344] COND FALSE !(\read(pumpRunning)) [L268] int tmp ; [L269] int tmp___0 ; [L189] int retValue_acc ; [L192] retValue_acc = methaneLevelCritical [L193] return (retValue_acc); [L273] tmp = isMethaneLevelCritical() [L275] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...