./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.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_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/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 0d9fe46be856096e0c78b096b76405a575c1ad90 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 01:30:06,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:30:06,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:30:07,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:30:07,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:30:07,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:30:07,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:30:07,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:30:07,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:30:07,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:30:07,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:30:07,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:30:07,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:30:07,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:30:07,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:30:07,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:30:07,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:30:07,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:30:07,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:30:07,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:30:07,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:30:07,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:30:07,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:30:07,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:30:07,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:30:07,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:30:07,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:30:07,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:30:07,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:30:07,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:30:07,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:30:07,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:30:07,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:30:07,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:30:07,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:30:07,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:30:07,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:30:07,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:30:07,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:30:07,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:30:07,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:30:07,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:30:07,104 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:30:07,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:30:07,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:30:07,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:30:07,106 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:30:07,107 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:30:07,107 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:30:07,107 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:30:07,107 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:30:07,107 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:30:07,108 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:30:07,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:30:07,108 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:30:07,108 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:30:07,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:30:07,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:30:07,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:30:07,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:30:07,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:30:07,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:30:07,110 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:30:07,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:30:07,110 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:30:07,111 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:30:07,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:30:07,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:30:07,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:30:07,112 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:30:07,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:30:07,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:30:07,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:30:07,113 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:30:07,114 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:30:07,114 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_5a8938c7-dc2e-4a44-8d18-836770917491/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d9fe46be856096e0c78b096b76405a575c1ad90 [2020-11-30 01:30:07,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:30:07,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:30:07,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:30:07,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:30:07,372 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:30:07,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2020-11-30 01:30:07,458 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/data/08b8012f3/644f6c8cd2bb490a91743015101f387c/FLAG276a3b99c [2020-11-30 01:30:07,976 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:30:07,976 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2020-11-30 01:30:08,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/data/08b8012f3/644f6c8cd2bb490a91743015101f387c/FLAG276a3b99c [2020-11-30 01:30:08,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/data/08b8012f3/644f6c8cd2bb490a91743015101f387c [2020-11-30 01:30:08,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:30:08,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:30:08,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:08,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:30:08,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:30:08,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4137b233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08, skipping insertion in model container [2020-11-30 01:30:08,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:30:08,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:30:08,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:08,746 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:30:08,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:30:08,877 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:30:08,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08 WrapperNode [2020-11-30 01:30:08,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:30:08,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:08,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:30:08,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:30:08,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:30:08,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:30:08,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:30:08,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:30:08,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... [2020-11-30 01:30:08,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:30:08,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:30:08,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:30:08,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:30:08,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/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 [2020-11-30 01:30:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:30:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:30:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:30:09,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:30:09,815 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:30:09,816 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-30 01:30:09,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:09 BoogieIcfgContainer [2020-11-30 01:30:09,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:30:09,819 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:30:09,819 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:30:09,822 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:30:09,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:30:09,823 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:30:08" (1/3) ... [2020-11-30 01:30:09,824 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69f42f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:30:09, skipping insertion in model container [2020-11-30 01:30:09,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:30:09,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:30:08" (2/3) ... [2020-11-30 01:30:09,825 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69f42f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:30:09, skipping insertion in model container [2020-11-30 01:30:09,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:30:09,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:09" (3/3) ... [2020-11-30 01:30:09,826 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-11-30 01:30:09,882 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:30:09,882 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:30:09,883 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:30:09,883 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:30:09,883 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:30:09,883 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:30:09,884 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:30:09,884 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:30:09,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-30 01:30:09,929 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 01:30:09,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:09,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:09,935 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:30:09,935 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:09,935 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:30:09,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states. [2020-11-30 01:30:09,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-30 01:30:09,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:09,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:09,942 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:30:09,942 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:09,946 INFO L794 eck$LassoCheckResult]: Stem: 33#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #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(75, #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(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);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~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 10#L-1true havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 66#L430true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 6#L438true main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 8#L917true assume 0 != main_~tmp~7; 54#L894true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 60#L817-1true [2020-11-30 01:30:09,948 INFO L796 eck$LassoCheckResult]: Loop: 60#L817-1true assume !false; 19#L347true assume test_~splverifierCounter~0 < 4; 36#L348true test_~tmp~2 := test_#t~nondet36;havoc test_#t~nondet36; 40#L356true assume !(0 != test_~tmp~2); 43#L356-1true test_~tmp___0~1 := test_#t~nondet37;havoc test_#t~nondet37; 26#L366true assume !(0 != test_~tmp___0~1); 27#L366-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 4#L376true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 30#L384-1true assume !(0 != ~pumpRunning~0); 28#L70true assume !(0 != ~systemActive~0); 37#L77true havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 71#L284true __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 58#L817true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 60#L817-1true [2020-11-30 01:30:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:09,961 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:30:09,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:09,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92590113] [2020-11-30 01:30:09,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:10,215 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:10,323 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:10,372 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:10,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:10,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1671986802, now seen corresponding path program 1 times [2020-11-30 01:30:10,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:10,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301695678] [2020-11-30 01:30:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:10,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:10,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301695678] [2020-11-30 01:30:10,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:10,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:10,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447004161] [2020-11-30 01:30:10,431 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:30:10,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:10,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:10,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:10,474 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2020-11-30 01:30:10,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:10,547 INFO L93 Difference]: Finished difference Result 148 states and 210 transitions. [2020-11-30 01:30:10,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:10,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 210 transitions. [2020-11-30 01:30:10,556 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2020-11-30 01:30:10,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 134 states and 195 transitions. [2020-11-30 01:30:10,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2020-11-30 01:30:10,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2020-11-30 01:30:10,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 195 transitions. [2020-11-30 01:30:10,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:30:10,566 INFO L691 BuchiCegarLoop]: Abstraction has 134 states and 195 transitions. [2020-11-30 01:30:10,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 195 transitions. [2020-11-30 01:30:10,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-11-30 01:30:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-30 01:30:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2020-11-30 01:30:10,604 INFO L714 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2020-11-30 01:30:10,604 INFO L594 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2020-11-30 01:30:10,605 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:30:10,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states and 192 transitions. [2020-11-30 01:30:10,608 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2020-11-30 01:30:10,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:10,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:10,609 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:30:10,609 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:10,609 INFO L794 eck$LassoCheckResult]: Stem: 281#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #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(75, #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(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);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~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 252#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 253#L430 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 246#L438 main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 247#L917 assume 0 != main_~tmp~7; 250#L894 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 304#L817-1 [2020-11-30 01:30:10,609 INFO L796 eck$LassoCheckResult]: Loop: 304#L817-1 assume !false; 325#L347 assume test_~splverifierCounter~0 < 4; 324#L348 test_~tmp~2 := test_#t~nondet36;havoc test_#t~nondet36; 323#L356 assume !(0 != test_~tmp~2); 321#L356-1 test_~tmp___0~1 := test_#t~nondet37;havoc test_#t~nondet37; 320#L366 assume !(0 != test_~tmp___0~1); 318#L366-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 317#L376 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 241#L384-1 assume !(0 != ~pumpRunning~0); 275#L70 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 276#L102 assume !(0 == ~pumpRunning~0); 331#L77 havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 330#L284 __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 328#L817 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 304#L817-1 [2020-11-30 01:30:10,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:10,611 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:30:10,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:10,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460823195] [2020-11-30 01:30:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:10,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:10,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:10,755 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:10,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:10,760 INFO L82 PathProgramCache]: Analyzing trace with hash -323593891, now seen corresponding path program 1 times [2020-11-30 01:30:10,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:10,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362842017] [2020-11-30 01:30:10,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:30:10,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:30:10,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362842017] [2020-11-30 01:30:10,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:30:10,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:30:10,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908553839] [2020-11-30 01:30:10,786 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:30:10,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:30:10,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:30:10,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:30:10,787 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. cyclomatic complexity: 63 Second operand 3 states. [2020-11-30 01:30:10,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:30:10,872 INFO L93 Difference]: Finished difference Result 215 states and 298 transitions. [2020-11-30 01:30:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:30:10,873 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 298 transitions. [2020-11-30 01:30:10,877 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2020-11-30 01:30:10,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 215 states and 298 transitions. [2020-11-30 01:30:10,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2020-11-30 01:30:10,881 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2020-11-30 01:30:10,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 298 transitions. [2020-11-30 01:30:10,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:30:10,883 INFO L691 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2020-11-30 01:30:10,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 298 transitions. [2020-11-30 01:30:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-11-30 01:30:10,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-11-30 01:30:10,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 298 transitions. [2020-11-30 01:30:10,900 INFO L714 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2020-11-30 01:30:10,900 INFO L594 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2020-11-30 01:30:10,900 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:30:10,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 298 transitions. [2020-11-30 01:30:10,902 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2020-11-30 01:30:10,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:30:10,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:30:10,903 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:30:10,903 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:30:10,904 INFO L794 eck$LassoCheckResult]: Stem: 633#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(77, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(101, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(116, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(104, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string31.base, #t~string31.offset, 1);call write~init~int(82, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(73, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(84, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 4 + #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(75, #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(2);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);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~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);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);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 606#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 607#L430 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 597#L438 main_#t~ret78 := valid_product_#res;main_~tmp~7 := main_#t~ret78;havoc main_#t~ret78; 598#L917 assume 0 != main_~tmp~7; 602#L894 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 656#L817-1 [2020-11-30 01:30:10,904 INFO L796 eck$LassoCheckResult]: Loop: 656#L817-1 assume !false; 616#L347 assume test_~splverifierCounter~0 < 4; 617#L348 test_~tmp~2 := test_#t~nondet36;havoc test_#t~nondet36; 637#L356 assume !(0 != test_~tmp~2); 620#L356-1 test_~tmp___0~1 := test_#t~nondet37;havoc test_#t~nondet37; 627#L366 assume !(0 != test_~tmp___0~1); 624#L366-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 592#L376 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 593#L384-1 assume !(0 != ~pumpRunning~0); 628#L70 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 595#L102 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 596#L324 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 608#L329 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 609#L204 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 610#L204-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 611#L210 processEnvironment_#t~ret7 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret7;havoc processEnvironment_#t~ret7; 630#L106 assume !(0 != processEnvironment_~tmp~0); 632#L77 havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 638#L284 __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 660#L817 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 656#L817-1 [2020-11-30 01:30:10,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:10,905 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:30:10,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:10,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595673859] [2020-11-30 01:30:10,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:10,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:11,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:11,058 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:11,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:11,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1551490647, now seen corresponding path program 1 times [2020-11-30 01:30:11,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:11,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88353780] [2020-11-30 01:30:11,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:11,068 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:11,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:11,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:11,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:30:11,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1536778673, now seen corresponding path program 1 times [2020-11-30 01:30:11,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:30:11,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507738916] [2020-11-30 01:30:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:30:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:11,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:30:11,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:30:11,250 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:30:11,503 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-30 01:31:25,901 WARN L193 SmtUtils]: Spent 1.24 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:32:19,600 WARN L193 SmtUtils]: Spent 53.69 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:32:19,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:32:19 BoogieIcfgContainer [2020-11-30 01:32:19,919 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:32:19,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:32:19,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:32:19,920 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:32:19,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:30:09" (3/4) ... [2020-11-30 01:32:19,923 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:32:19,984 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5a8938c7-dc2e-4a44-8d18-836770917491/bin/uautomizer/witness.graphml [2020-11-30 01:32:19,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:32:19,997 INFO L168 Benchmark]: Toolchain (without parser) took 131714.35 ms. Allocated memory was 83.9 MB in the beginning and 148.9 MB in the end (delta: 65.0 MB). Free memory was 52.8 MB in the beginning and 114.9 MB in the end (delta: -62.1 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:19,997 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:32:19,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.07 ms. Allocated memory was 83.9 MB in the beginning and 115.3 MB in the end (delta: 31.5 MB). Free memory was 52.8 MB in the beginning and 80.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:19,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.92 ms. Allocated memory is still 115.3 MB. Free memory was 80.9 MB in the beginning and 78.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:19,999 INFO L168 Benchmark]: Boogie Preprocessor took 35.70 ms. Allocated memory is still 115.3 MB. Free memory was 78.0 MB in the beginning and 76.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:19,999 INFO L168 Benchmark]: RCFGBuilder took 836.75 ms. Allocated memory is still 115.3 MB. Free memory was 76.0 MB in the beginning and 73.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:20,000 INFO L168 Benchmark]: BuchiAutomizer took 130100.69 ms. Allocated memory was 115.3 MB in the beginning and 148.9 MB in the end (delta: 33.6 MB). Free memory was 72.3 MB in the beginning and 117.0 MB in the end (delta: -44.8 MB). Peak memory consumption was 77.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:32:20,000 INFO L168 Benchmark]: Witness Printer took 75.62 ms. Allocated memory is still 148.9 MB. Free memory was 117.0 MB in the beginning and 114.9 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:32:20,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 595.07 ms. Allocated memory was 83.9 MB in the beginning and 115.3 MB in the end (delta: 31.5 MB). Free memory was 52.8 MB in the beginning and 80.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.92 ms. Allocated memory is still 115.3 MB. Free memory was 80.9 MB in the beginning and 78.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.70 ms. Allocated memory is still 115.3 MB. Free memory was 78.0 MB in the beginning and 76.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 836.75 ms. Allocated memory is still 115.3 MB. Free memory was 76.0 MB in the beginning and 73.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 130100.69 ms. Allocated memory was 115.3 MB in the beginning and 148.9 MB in the end (delta: 33.6 MB). Free memory was 72.3 MB in the beginning and 117.0 MB in the end (delta: -44.8 MB). Peak memory consumption was 77.6 MB. Max. memory is 16.1 GB. * Witness Printer took 75.62 ms. Allocated memory is still 148.9 MB. Free memory was 117.0 MB in the beginning and 114.9 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 215 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 130.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 129.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 217 SDtfs, 185 SDslu, 146 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 346]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=27837} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=27863, NULL=0, NULL=27837, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e90a46c=0, NULL=27839, NULL=0, NULL=0, NULL=27842, NULL=27859, NULL=27857, methaneLevelCritical=0, tmp___0=0, tmp=0, NULL=0, NULL=0, NULL=27849, retValue_acc=0, NULL=27850, tmp___1=0, NULL=27858, tmp___0=0, NULL=0, NULL=0, NULL=27864, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@488ff64f=0, cleanupTimeShifts=4, NULL=27851, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69a5fa9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48608446=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3408ad17=0, NULL=27846, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@611f0f39=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=27847, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7474ad3b=0, retValue_acc=0, NULL=27844, \result=0, NULL=0, NULL=27843, retValue_acc=0, NULL=27862, \result=1, NULL=27848, head=0, pumpRunning=0, \result=0, retValue_acc=1, tmp=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=27856, \result=1, NULL=27855, retValue_acc=1, NULL=27865, NULL=0, NULL=0, tmp=1, NULL=0, NULL=27860, tmp___2=64, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=27838, NULL=27854, NULL=27840, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a3f9e0c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75d1eccd=0, tmp=0, NULL=27845, head=0, NULL=27853, NULL=0, NULL=27852, NULL=0, NULL=27861, NULL=0, NULL=0, NULL=27841} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L241] int waterLevel = 1; [L242] int methaneLevelCritical = 0; [L612] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L835] int cleanupTimeShifts = 4; [L908] int retValue_acc ; [L909] int tmp ; [L434] int retValue_acc ; [L437] retValue_acc = 1 [L438] return (retValue_acc); [L915] tmp = valid_product() [L917] COND TRUE \read(tmp) [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 Loop: [L346] COND TRUE 1 [L348] COND TRUE splverifierCounter < 4 [L354] tmp = __VERIFIER_nondet_int() [L356] COND FALSE !(\read(tmp)) [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND FALSE !(\read(tmp___0)) [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L233] systemActive = 1 [L70] COND FALSE !(\read(pumpRunning)) [L77] COND TRUE \read(systemActive) [L99] int tmp ; [L102] COND TRUE ! pumpRunning [L196] int retValue_acc ; [L197] int tmp ; [L198] int tmp___0 ; [L321] int retValue_acc ; [L324] COND TRUE waterLevel < 2 [L325] retValue_acc = 1 [L326] return (retValue_acc); [L202] tmp = isHighWaterSensorDry() [L204] COND TRUE \read(tmp) [L205] tmp___0 = 0 [L209] retValue_acc = tmp___0 [L210] return (retValue_acc); [L104] tmp = isHighWaterLevel() [L106] COND FALSE !(\read(tmp)) [L810] int tmp ; [L811] int tmp___0 ; [L280] int retValue_acc ; [L283] retValue_acc = methaneLevelCritical [L284] return (retValue_acc); [L815] tmp = isMethaneLevelCritical() [L817] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...