./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product57.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_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/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 9cb3124a923cdd866f09b8c3b7a075e2954c5f17 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:06:16,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:06:16,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:06:16,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:06:16,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:06:16,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:06:16,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:06:16,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:06:16,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:06:16,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:06:16,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:06:16,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:06:16,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:06:16,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:06:16,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:06:16,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:06:16,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:06:16,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:06:16,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:06:16,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:06:17,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:06:17,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:06:17,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:06:17,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:06:17,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:06:17,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:06:17,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:06:17,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:06:17,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:06:17,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:06:17,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:06:17,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:06:17,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:06:17,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:06:17,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:06:17,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:06:17,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:06:17,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:06:17,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:06:17,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:06:17,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:06:17,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:06:17,080 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:06:17,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:06:17,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:06:17,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:06:17,083 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:06:17,083 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:06:17,083 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:06:17,084 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:06:17,084 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:06:17,084 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:06:17,085 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:06:17,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:06:17,086 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:06:17,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:06:17,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:06:17,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:06:17,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:06:17,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:06:17,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:06:17,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:06:17,087 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:06:17,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:06:17,088 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:06:17,088 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:06:17,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:06:17,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:06:17,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:06:17,089 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:06:17,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:06:17,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:06:17,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:06:17,090 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:06:17,091 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:06:17,091 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_2cd923b0-7f4a-43ce-90a9-d167c7981771/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cb3124a923cdd866f09b8c3b7a075e2954c5f17 [2020-11-29 20:06:17,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:06:17,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:06:17,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:06:17,484 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:06:17,485 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:06:17,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c [2020-11-29 20:06:17,574 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/data/eb29262ff/1677ace82bb04ca0a3f0c9e4026ba2eb/FLAG2ec0795f7 [2020-11-29 20:06:18,293 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:06:18,293 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/sv-benchmarks/c/product-lines/minepump_spec1_product57.cil.c [2020-11-29 20:06:18,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/data/eb29262ff/1677ace82bb04ca0a3f0c9e4026ba2eb/FLAG2ec0795f7 [2020-11-29 20:06:18,587 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/data/eb29262ff/1677ace82bb04ca0a3f0c9e4026ba2eb [2020-11-29 20:06:18,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:06:18,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:06:18,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:06:18,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:06:18,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:06:18,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:06:18" (1/1) ... [2020-11-29 20:06:18,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85f536b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:18, skipping insertion in model container [2020-11-29 20:06:18,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:06:18" (1/1) ... [2020-11-29 20:06:18,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:06:18,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:06:19,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:06:19,080 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:06:19,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:06:19,200 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:06:19,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19 WrapperNode [2020-11-29 20:06:19,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:06:19,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:06:19,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:06:19,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:06:19,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... [2020-11-29 20:06:19,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... [2020-11-29 20:06:19,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:06:19,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:06:19,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:06:19,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:06:19,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... [2020-11-29 20:06:19,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... [2020-11-29 20:06:19,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... [2020-11-29 20:06:19,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... [2020-11-29 20:06:19,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... [2020-11-29 20:06:19,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... [2020-11-29 20:06:19,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... [2020-11-29 20:06:19,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:06:19,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:06:19,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:06:19,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:06:19,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/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 20:06:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:06:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:06:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:06:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:06:20,771 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:06:20,771 INFO L298 CfgBuilder]: Removed 198 assume(true) statements. [2020-11-29 20:06:20,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:06:20 BoogieIcfgContainer [2020-11-29 20:06:20,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:06:20,774 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:06:20,774 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:06:20,777 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:06:20,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:06:20,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:06:18" (1/3) ... [2020-11-29 20:06:20,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@666b20ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:06:20, skipping insertion in model container [2020-11-29 20:06:20,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:06:20,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:19" (2/3) ... [2020-11-29 20:06:20,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@666b20ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:06:20, skipping insertion in model container [2020-11-29 20:06:20,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:06:20,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:06:20" (3/3) ... [2020-11-29 20:06:20,782 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-11-29 20:06:20,838 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:06:20,838 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:06:20,838 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:06:20,838 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:06:20,838 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:06:20,838 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:06:20,838 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:06:20,838 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:06:20,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-29 20:06:20,879 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-29 20:06:20,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:06:20,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:06:20,888 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:06:20,888 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:06:20,888 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:06:20,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-29 20:06:20,897 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-29 20:06:20,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:06:20,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:06:20,899 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:06:20,899 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:06:20,904 INFO L794 eck$LassoCheckResult]: Stem: 103#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 109#L96true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 108#L104true main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 98#L848true assume 0 != main_~tmp~10; 117#L825true havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, 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; 61#L53-1true [2020-11-29 20:06:20,905 INFO L796 eck$LassoCheckResult]: Loop: 61#L53-1true assume !false; 102#L490true assume test_~splverifierCounter~0 < 4; 54#L491true test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 64#L499true assume !(0 != test_~tmp~4); 67#L499-1true test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 104#L509true assume !(0 != test_~tmp___0~1); 105#L509-1true test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 16#L519true assume 0 != test_~tmp___2~0; 127#L525-2true assume !(0 != ~pumpRunning~0); 118#L558true assume !(0 != ~systemActive~0); 82#L565true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 86#L906-2true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 85#L53true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 61#L53-1true [2020-11-29 20:06:20,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:06:20,911 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 20:06:20,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:06:20,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137587635] [2020-11-29 20:06:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:06:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:21,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:21,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:21,451 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:06:21,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:06:21,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1679097916, now seen corresponding path program 1 times [2020-11-29 20:06:21,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:06:21,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103502977] [2020-11-29 20:06:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:06:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:21,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:21,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:21,469 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:06:21,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:06:21,470 INFO L82 PathProgramCache]: Analyzing trace with hash 35181022, now seen corresponding path program 1 times [2020-11-29 20:06:21,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:06:21,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683059576] [2020-11-29 20:06:21,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:06:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:06:21,665 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 20:06:21,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683059576] [2020-11-29 20:06:21,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:06:21,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:06:21,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057116335] [2020-11-29 20:06:21,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:06:21,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:06:21,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:06:21,793 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 6 states. [2020-11-29 20:06:22,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:06:22,112 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2020-11-29 20:06:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:06:22,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 187 transitions. [2020-11-29 20:06:22,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-29 20:06:22,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2020-11-29 20:06:22,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2020-11-29 20:06:22,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2020-11-29 20:06:22,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2020-11-29 20:06:22,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:06:22,134 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-29 20:06:22,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2020-11-29 20:06:22,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-29 20:06:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 20:06:22,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2020-11-29 20:06:22,174 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-29 20:06:22,175 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-29 20:06:22,175 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:06:22,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2020-11-29 20:06:22,181 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-29 20:06:22,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:06:22,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:06:22,189 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:06:22,190 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:06:22,190 INFO L794 eck$LassoCheckResult]: Stem: 398#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 301#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 302#L96 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 399#L104 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 396#L848 assume 0 != main_~tmp~10; 397#L825 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, 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; 371#L53-1 [2020-11-29 20:06:22,191 INFO L796 eck$LassoCheckResult]: Loop: 371#L53-1 assume !false; 372#L490 assume test_~splverifierCounter~0 < 4; 364#L491 test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 365#L499 assume !(0 != test_~tmp~4); 375#L499-1 test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 379#L509 assume !(0 != test_~tmp___0~1); 337#L509-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 308#L519 assume 0 != test_~tmp___2~0; 309#L525-2 assume !(0 != ~pumpRunning~0); 403#L558 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 400#L616 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 350#L590-1 assume !(0 == ~pumpRunning~0); 343#L565 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 387#L906-2 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 389#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 371#L53-1 [2020-11-29 20:06:22,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:06:22,193 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 20:06:22,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:06:22,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652562159] [2020-11-29 20:06:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:06:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:22,259 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:22,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:22,356 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:06:22,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:06:22,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1986081043, now seen corresponding path program 1 times [2020-11-29 20:06:22,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:06:22,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160222402] [2020-11-29 20:06:22,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:06:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:06:22,383 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 20:06:22,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160222402] [2020-11-29 20:06:22,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:06:22,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:06:22,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858455707] [2020-11-29 20:06:22,385 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:06:22,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:06:22,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:06:22,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:06:22,386 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 Second operand 3 states. [2020-11-29 20:06:22,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:06:22,556 INFO L93 Difference]: Finished difference Result 166 states and 228 transitions. [2020-11-29 20:06:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:06:22,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 228 transitions. [2020-11-29 20:06:22,560 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-29 20:06:22,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 166 states and 228 transitions. [2020-11-29 20:06:22,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2020-11-29 20:06:22,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2020-11-29 20:06:22,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 166 states and 228 transitions. [2020-11-29 20:06:22,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:06:22,564 INFO L691 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2020-11-29 20:06:22,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states and 228 transitions. [2020-11-29 20:06:22,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-11-29 20:06:22,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-11-29 20:06:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2020-11-29 20:06:22,575 INFO L714 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2020-11-29 20:06:22,575 INFO L594 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2020-11-29 20:06:22,576 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:06:22,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 228 transitions. [2020-11-29 20:06:22,577 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-29 20:06:22,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:06:22,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:06:22,579 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:06:22,579 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, 1] [2020-11-29 20:06:22,579 INFO L794 eck$LassoCheckResult]: Stem: 698#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 598#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 599#L96 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 699#L104 main_#t~ret71 := valid_product_#res;main_~tmp~10 := main_#t~ret71;havoc main_#t~ret71; 696#L848 assume 0 != main_~tmp~10; 697#L825 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, 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; 669#L53-1 [2020-11-29 20:06:22,579 INFO L796 eck$LassoCheckResult]: Loop: 669#L53-1 assume !false; 670#L490 assume test_~splverifierCounter~0 < 4; 662#L491 test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 663#L499 assume !(0 != test_~tmp~4); 677#L499-1 test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 678#L509 assume !(0 != test_~tmp___0~1); 633#L509-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 605#L519 assume 0 != test_~tmp___2~0; 606#L525-2 assume !(0 != ~pumpRunning~0); 703#L558 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 700#L616 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret49, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 648#L590-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 649#L946-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 625#L951-1 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 626#L736-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 634#L736-5 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 611#L742-1 processEnvironment__wrappee__highWaterSensor_#t~ret49 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret49;havoc processEnvironment__wrappee__highWaterSensor_#t~ret49; 612#L594-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 686#L565 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 687#L906-2 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 689#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 669#L53-1 [2020-11-29 20:06:22,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:06:22,580 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 20:06:22,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:06:22,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429925809] [2020-11-29 20:06:22,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:06:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:22,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:22,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:22,668 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:06:22,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:06:22,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1392929209, now seen corresponding path program 1 times [2020-11-29 20:06:22,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:06:22,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206102067] [2020-11-29 20:06:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:06:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:22,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:22,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:22,682 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:06:22,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:06:22,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1849000403, now seen corresponding path program 1 times [2020-11-29 20:06:22,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:06:22,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845367527] [2020-11-29 20:06:22,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:06:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:22,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:06:22,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:06:22,764 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:06:22,958 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 20:06:23,096 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-11-29 20:07:42,652 WARN L193 SmtUtils]: Spent 1.33 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 20:08:34,845 WARN L193 SmtUtils]: Spent 52.18 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 20:08:35,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:08:35 BoogieIcfgContainer [2020-11-29 20:08:35,103 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:08:35,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:08:35,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:08:35,104 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:08:35,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:06:20" (3/4) ... [2020-11-29 20:08:35,108 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:08:35,164 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2cd923b0-7f4a-43ce-90a9-d167c7981771/bin/uautomizer/witness.graphml [2020-11-29 20:08:35,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:08:35,166 INFO L168 Benchmark]: Toolchain (without parser) took 136573.96 ms. Allocated memory was 98.6 MB in the beginning and 169.9 MB in the end (delta: 71.3 MB). Free memory was 70.1 MB in the beginning and 133.0 MB in the end (delta: -62.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:35,168 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 98.6 MB. Free memory was 58.6 MB in the beginning and 58.5 MB in the end (delta: 50.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:35,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.67 ms. Allocated memory is still 98.6 MB. Free memory was 70.1 MB in the beginning and 64.7 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:35,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.44 ms. Allocated memory is still 98.6 MB. Free memory was 64.7 MB in the beginning and 60.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:35,172 INFO L168 Benchmark]: Boogie Preprocessor took 50.77 ms. Allocated memory is still 98.6 MB. Free memory was 60.8 MB in the beginning and 58.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:35,173 INFO L168 Benchmark]: RCFGBuilder took 1439.05 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 57.7 MB in the beginning and 92.6 MB in the end (delta: -34.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:35,173 INFO L168 Benchmark]: BuchiAutomizer took 134329.43 ms. Allocated memory was 130.0 MB in the beginning and 169.9 MB in the end (delta: 39.8 MB). Free memory was 92.6 MB in the beginning and 136.0 MB in the end (delta: -43.4 MB). Peak memory consumption was 90.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:35,175 INFO L168 Benchmark]: Witness Printer took 60.53 ms. Allocated memory is still 169.9 MB. Free memory was 136.0 MB in the beginning and 133.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:35,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 98.6 MB. Free memory was 58.6 MB in the beginning and 58.5 MB in the end (delta: 50.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 607.67 ms. Allocated memory is still 98.6 MB. Free memory was 70.1 MB in the beginning and 64.7 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.44 ms. Allocated memory is still 98.6 MB. Free memory was 64.7 MB in the beginning and 60.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.77 ms. Allocated memory is still 98.6 MB. Free memory was 60.8 MB in the beginning and 58.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1439.05 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 57.7 MB in the beginning and 92.6 MB in the end (delta: -34.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 134329.43 ms. Allocated memory was 130.0 MB in the beginning and 169.9 MB in the end (delta: 39.8 MB). Free memory was 92.6 MB in the beginning and 136.0 MB in the end (delta: -43.4 MB). Peak memory consumption was 90.8 MB. Max. memory is 16.1 GB. * Witness Printer took 60.53 ms. Allocated memory is still 169.9 MB. Free memory was 136.0 MB in the beginning and 133.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 166 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 134.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 133.5s. Construction of modules took 0.3s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 166 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 347 SDtfs, 681 SDslu, 68 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 489]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ade1d4=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aeca779=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1aab856f=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@298c678=0, NULL=0, NULL=26002, NULL=0, NULL=26009, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45a0a740=0, tmp=0, NULL=0, NULL=26011, NULL=26029, retValue_acc=0, tmp___1=0, NULL=26004, NULL=0, NULL=26003, cleanupTimeShifts=4, NULL=26005, retValue_acc=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e5ef8be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7160a037=0, waterLevel=1, NULL=0, NULL=0, NULL=26006, NULL=26015, \result=1, head=0, pumpRunning=0, NULL=0, tmp=0, \result=1, NULL=0, NULL=0, NULL=26008, NULL=0, tmp=1, NULL=0, NULL=26023, tmp___0=0, NULL=26030, head=0, NULL=0, tmp=0, NULL=26027, NULL=0, NULL=0, NULL=0, NULL=26014, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1887ef2f=0, NULL=26016, retValue_acc=0, NULL=26017, NULL=26024, tmp___0=0, NULL=26025, NULL=0, NULL=0, tmp___0=0, NULL=26013, NULL=26026, tmp=0, NULL=0, NULL=0, systemActive=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=26028, \result=0, NULL=26010, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16b02c04=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19d3b45b=0, NULL=26001, NULL=26020, retValue_acc=1, retValue_acc=1, tmp___2=54, splverifierCounter=0, NULL=0, \result=0, NULL=26012, NULL=26007, NULL=26022, NULL=26021} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L278] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L551] int pumpRunning = 0; [L552] int systemActive = 1; [L766] int cleanupTimeShifts = 4; [L863] int waterLevel = 1; [L864] int methaneLevelCritical = 0; [L839] int retValue_acc ; [L840] int tmp ; [L100] int retValue_acc ; [L103] retValue_acc = 1 [L104] return (retValue_acc); [L846] tmp = valid_product() [L848] COND TRUE \read(tmp) [L480] int splverifierCounter ; [L481] int tmp ; [L482] int tmp___0 ; [L483] int tmp___1 ; [L484] int tmp___2 ; [L487] splverifierCounter = 0 Loop: [L489] COND TRUE 1 [L491] COND TRUE splverifierCounter < 4 [L497] tmp = __VERIFIER_nondet_int() [L499] COND FALSE !(\read(tmp)) [L507] tmp___0 = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp___0)) [L517] tmp___2 = __VERIFIER_nondet_int() [L519] COND TRUE \read(tmp___2) [L558] COND FALSE !(\read(pumpRunning)) [L565] COND TRUE \read(systemActive) [L613] int tmp ; [L616] COND FALSE !(\read(pumpRunning)) [L587] int tmp ; [L590] COND TRUE ! pumpRunning [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L943] int retValue_acc ; [L946] COND TRUE waterLevel < 2 [L947] retValue_acc = 1 [L948] return (retValue_acc); [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L592] tmp = isHighWaterLevel() [L594] COND FALSE !(\read(tmp)) [L46] int tmp ; [L47] int tmp___0 ; [L902] int retValue_acc ; [L905] retValue_acc = methaneLevelCritical [L906] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...