./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.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_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/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 860ff1846e87757b91c6aac79a03ba005ad35e34 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:24:33,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:24:33,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:24:33,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:24:33,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:24:33,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:24:33,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:24:33,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:24:33,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:24:33,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:24:33,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:24:33,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:24:33,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:24:33,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:24:33,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:24:33,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:24:33,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:24:33,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:24:33,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:24:33,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:24:33,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:24:33,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:24:33,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:24:33,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:24:33,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:24:33,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:24:33,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:24:33,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:24:33,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:24:33,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:24:33,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:24:33,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:24:33,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:24:33,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:24:33,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:24:33,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:24:33,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:24:33,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:24:33,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:24:33,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:24:33,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:24:33,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:24:33,807 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:24:33,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:24:33,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:24:33,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:24:33,810 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:24:33,810 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:24:33,810 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:24:33,811 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:24:33,811 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:24:33,811 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:24:33,811 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:24:33,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:24:33,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:24:33,812 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:24:33,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:24:33,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:24:33,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:24:33,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:24:33,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:24:33,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:24:33,814 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:24:33,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:24:33,814 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:24:33,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:24:33,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:24:33,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:24:33,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:24:33,816 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:24:33,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:24:33,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:24:33,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:24:33,817 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:24:33,818 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:24:33,818 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_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860ff1846e87757b91c6aac79a03ba005ad35e34 [2020-11-30 01:24:34,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:24:34,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:24:34,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:24:34,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:24:34,154 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:24:34,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2020-11-30 01:24:34,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/data/77fa70e49/64a2da054abc43a4b254869745688615/FLAGae836ef96 [2020-11-30 01:24:34,883 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:24:34,884 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2020-11-30 01:24:34,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/data/77fa70e49/64a2da054abc43a4b254869745688615/FLAGae836ef96 [2020-11-30 01:24:35,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/data/77fa70e49/64a2da054abc43a4b254869745688615 [2020-11-30 01:24:35,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:24:35,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:24:35,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:24:35,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:24:35,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:24:35,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b02721c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35, skipping insertion in model container [2020-11-30 01:24:35,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:24:35,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:24:35,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:24:35,699 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:24:35,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:24:35,826 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:24:35,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35 WrapperNode [2020-11-30 01:24:35,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:24:35,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:24:35,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:24:35,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:24:35,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:24:35,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:24:35,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:24:35,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:24:35,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... [2020-11-30 01:24:35,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:24:35,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:24:35,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:24:35,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:24:35,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/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 01:24:36,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:24:36,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:24:36,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:24:36,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:24:36,990 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:24:36,991 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-30 01:24:36,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:24:36 BoogieIcfgContainer [2020-11-30 01:24:36,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:24:36,995 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:24:36,996 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:24:36,999 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:24:37,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:24:37,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:24:35" (1/3) ... [2020-11-30 01:24:37,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45b0dc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:24:37, skipping insertion in model container [2020-11-30 01:24:37,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:24:37,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:24:35" (2/3) ... [2020-11-30 01:24:37,003 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45b0dc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:24:37, skipping insertion in model container [2020-11-30 01:24:37,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:24:37,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:24:36" (3/3) ... [2020-11-30 01:24:37,006 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-11-30 01:24:37,083 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:24:37,084 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:24:37,084 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:24:37,084 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:24:37,084 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:24:37,085 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:24:37,085 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:24:37,085 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:24:37,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-30 01:24:37,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-30 01:24:37,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:24:37,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:24:37,145 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:24:37,145 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:24:37,146 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:24:37,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2020-11-30 01:24:37,156 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-30 01:24:37,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:24:37,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:24:37,158 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:24:37,159 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:24:37,165 INFO L794 eck$LassoCheckResult]: Stem: 39#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);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(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 17#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 30#L153true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 41#L161true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 48#L260true assume 0 != main_~tmp~0; 71#L236true havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 46#L443-1true [2020-11-30 01:24:37,166 INFO L796 eck$LassoCheckResult]: Loop: 46#L443-1true assume !false; 49#L473true assume test_~splverifierCounter~0 < 4; 76#L474true test_~tmp~4 := test_#t~nondet41;havoc test_#t~nondet41; 8#L482true assume !(0 != test_~tmp~4); 11#L482-1true test_~tmp___0~1 := test_#t~nondet42;havoc test_#t~nondet42; 65#L492true assume !(0 != test_~tmp___0~1); 66#L492-1true test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 53#L502true assume 0 != test_~tmp___2~0; 32#L508-2true assume !(0 != ~pumpRunning~0); 14#L285true assume !(0 != ~systemActive~0); 33#L292true havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 3#L91-1true __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 68#L437true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 46#L443-1true [2020-11-30 01:24:37,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:37,174 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:24:37,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:37,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967239338] [2020-11-30 01:24:37,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:37,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:37,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:37,773 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:24:37,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:37,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1681899275, now seen corresponding path program 1 times [2020-11-30 01:24:37,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:37,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966933478] [2020-11-30 01:24:37,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:37,801 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:37,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:37,826 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:24:37,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:37,835 INFO L82 PathProgramCache]: Analyzing trace with hash 32379663, now seen corresponding path program 1 times [2020-11-30 01:24:37,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:37,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879733829] [2020-11-30 01:24:37,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:24:38,015 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 01:24:38,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879733829] [2020-11-30 01:24:38,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:24:38,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:24:38,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720100591] [2020-11-30 01:24:38,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:24:38,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:24:38,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:24:38,164 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 6 states. [2020-11-30 01:24:38,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:24:38,383 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2020-11-30 01:24:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:24:38,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2020-11-30 01:24:38,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-30 01:24:38,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2020-11-30 01:24:38,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2020-11-30 01:24:38,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2020-11-30 01:24:38,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2020-11-30 01:24:38,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:24:38,412 INFO L691 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-30 01:24:38,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2020-11-30 01:24:38,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-30 01:24:38,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-30 01:24:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2020-11-30 01:24:38,465 INFO L714 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-30 01:24:38,465 INFO L594 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2020-11-30 01:24:38,465 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:24:38,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2020-11-30 01:24:38,470 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2020-11-30 01:24:38,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:24:38,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:24:38,474 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:24:38,474 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:24:38,475 INFO L794 eck$LassoCheckResult]: Stem: 214#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);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(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 193#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 194#L153 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 204#L161 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 215#L260 assume 0 != main_~tmp~0; 220#L236 havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 217#L443-1 [2020-11-30 01:24:38,476 INFO L796 eck$LassoCheckResult]: Loop: 217#L443-1 assume !false; 218#L473 assume test_~splverifierCounter~0 < 4; 221#L474 test_~tmp~4 := test_#t~nondet41;havoc test_#t~nondet41; 177#L482 assume !(0 != test_~tmp~4); 179#L482-1 test_~tmp___0~1 := test_#t~nondet42;havoc test_#t~nondet42; 186#L492 assume !(0 != test_~tmp___0~1); 228#L492-1 test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 224#L502 assume 0 != test_~tmp___2~0; 201#L508-2 assume !(0 != ~pumpRunning~0); 187#L285 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 188#L317 assume !(0 != ~pumpRunning~0); 183#L292 havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 165#L91-1 __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 166#L437 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 217#L443-1 [2020-11-30 01:24:38,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:38,478 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:24:38,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:38,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239874106] [2020-11-30 01:24:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:38,582 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:38,671 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:38,689 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:24:38,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:38,690 INFO L82 PathProgramCache]: Analyzing trace with hash -619797874, now seen corresponding path program 1 times [2020-11-30 01:24:38,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:38,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923381070] [2020-11-30 01:24:38,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:38,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:38,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:38,707 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:24:38,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:38,708 INFO L82 PathProgramCache]: Analyzing trace with hash 983241652, now seen corresponding path program 1 times [2020-11-30 01:24:38,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:38,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324847329] [2020-11-30 01:24:38,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:24:38,802 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 01:24:38,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324847329] [2020-11-30 01:24:38,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:24:38,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:24:38,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85719635] [2020-11-30 01:24:38,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:24:38,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:24:38,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:24:38,893 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. cyclomatic complexity: 27 Second operand 5 states. [2020-11-30 01:24:39,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:24:39,188 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2020-11-30 01:24:39,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:24:39,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 300 transitions. [2020-11-30 01:24:39,200 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2020-11-30 01:24:39,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 300 transitions. [2020-11-30 01:24:39,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2020-11-30 01:24:39,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2020-11-30 01:24:39,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 300 transitions. [2020-11-30 01:24:39,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:24:39,209 INFO L691 BuchiCegarLoop]: Abstraction has 211 states and 300 transitions. [2020-11-30 01:24:39,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 300 transitions. [2020-11-30 01:24:39,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 124. [2020-11-30 01:24:39,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-30 01:24:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2020-11-30 01:24:39,223 INFO L714 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2020-11-30 01:24:39,223 INFO L594 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2020-11-30 01:24:39,223 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:24:39,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 124 states and 170 transitions. [2020-11-30 01:24:39,225 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2020-11-30 01:24:39,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:24:39,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:24:39,226 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:24:39,226 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:24:39,226 INFO L794 eck$LassoCheckResult]: Stem: 516#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(13);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);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(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 488#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 489#L153 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 503#L161 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 518#L260 assume 0 != main_~tmp~0; 526#L236 havoc test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 520#L443-1 [2020-11-30 01:24:39,227 INFO L796 eck$LassoCheckResult]: Loop: 520#L443-1 assume !false; 527#L473 assume test_~splverifierCounter~0 < 4; 528#L474 test_~tmp~4 := test_#t~nondet41;havoc test_#t~nondet41; 469#L482 assume !(0 != test_~tmp~4); 471#L482-1 test_~tmp___0~1 := test_#t~nondet42;havoc test_#t~nondet42; 477#L492 assume !(0 != test_~tmp___0~1); 545#L492-1 test_~tmp___2~0 := test_#t~nondet43;havoc test_#t~nondet43; 531#L502 assume 0 != test_~tmp___2~0; 494#L508-2 assume !(0 != ~pumpRunning~0); 482#L285 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 483#L317 assume !(0 != ~pumpRunning~0); 479#L292 havoc __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 506#L91-1 __utac_acc__Specification3_spec__1_#t~ret38 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 546#L437 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 547#L123 __utac_acc__Specification3_spec__1_#t~ret39 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; 519#L443 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 520#L443-1 [2020-11-30 01:24:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:39,227 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:24:39,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:39,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541052934] [2020-11-30 01:24:39,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:39,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:39,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:39,343 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:24:39,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:39,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1374702914, now seen corresponding path program 1 times [2020-11-30 01:24:39,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:39,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997453195] [2020-11-30 01:24:39,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:39,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:39,361 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:39,366 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:24:39,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:24:39,367 INFO L82 PathProgramCache]: Analyzing trace with hash 2428136, now seen corresponding path program 1 times [2020-11-30 01:24:39,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:24:39,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188359585] [2020-11-30 01:24:39,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:24:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:39,421 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:24:39,497 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:24:39,530 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:25:58,904 WARN L193 SmtUtils]: Spent 1.32 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:26:48,568 WARN L193 SmtUtils]: Spent 49.65 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:26:48,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:26:48 BoogieIcfgContainer [2020-11-30 01:26:48,761 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:26:48,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:26:48,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:26:48,762 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:26:48,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:24:36" (3/4) ... [2020-11-30 01:26:48,765 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:26:48,818 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1fa1025b-4879-4ba6-83fd-f90b12a18cbc/bin/uautomizer/witness.graphml [2020-11-30 01:26:48,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:26:48,820 INFO L168 Benchmark]: Toolchain (without parser) took 133622.30 ms. Allocated memory was 127.9 MB in the beginning and 163.6 MB in the end (delta: 35.7 MB). Free memory was 95.0 MB in the beginning and 125.3 MB in the end (delta: -30.3 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:48,820 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 77.6 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:26:48,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.17 ms. Allocated memory is still 127.9 MB. Free memory was 94.7 MB in the beginning and 93.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:48,821 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.82 ms. Allocated memory is still 127.9 MB. Free memory was 93.3 MB in the beginning and 90.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:48,822 INFO L168 Benchmark]: Boogie Preprocessor took 45.47 ms. Allocated memory is still 127.9 MB. Free memory was 90.5 MB in the beginning and 88.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:48,822 INFO L168 Benchmark]: RCFGBuilder took 1038.26 ms. Allocated memory is still 127.9 MB. Free memory was 88.4 MB in the beginning and 38.8 MB in the end (delta: 49.6 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:48,823 INFO L168 Benchmark]: BuchiAutomizer took 131765.91 ms. Allocated memory was 127.9 MB in the beginning and 163.6 MB in the end (delta: 35.7 MB). Free memory was 38.8 MB in the beginning and 128.5 MB in the end (delta: -89.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:48,824 INFO L168 Benchmark]: Witness Printer took 56.54 ms. Allocated memory is still 163.6 MB. Free memory was 128.5 MB in the beginning and 125.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:48,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 77.6 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 628.17 ms. Allocated memory is still 127.9 MB. Free memory was 94.7 MB in the beginning and 93.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.82 ms. Allocated memory is still 127.9 MB. Free memory was 93.3 MB in the beginning and 90.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.47 ms. Allocated memory is still 127.9 MB. Free memory was 90.5 MB in the beginning and 88.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1038.26 ms. Allocated memory is still 127.9 MB. Free memory was 88.4 MB in the beginning and 38.8 MB in the end (delta: 49.6 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 131765.91 ms. Allocated memory was 127.9 MB in the beginning and 163.6 MB in the end (delta: 35.7 MB). Free memory was 38.8 MB in the beginning and 128.5 MB in the end (delta: -89.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. * Witness Printer took 56.54 ms. Allocated memory is still 163.6 MB. Free memory was 128.5 MB in the beginning and 125.3 MB in the end (delta: 3.2 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 124 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 131.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 130.8s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 87 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 124 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 202 SDtfs, 587 SDslu, 327 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 472]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=24648} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bf8728=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@91eb25=0, NULL=0, NULL=24673, NULL=0, NULL=24648, retValue_acc=0, NULL=24671, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28972a0e=0, NULL=24666, NULL=24665, NULL=24655, methaneLevelCritical=0, NULL=24674, NULL=24658, NULL=0, tmp=0, NULL=0, NULL=24661, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4908f59d=0, NULL=0, NULL=24668, NULL=0, tmp___1=0, NULL=24653, NULL=24652, NULL=0, NULL=0, NULL=0, tmp___0=1, cleanupTimeShifts=4, NULL=24649, NULL=24654, tmp=0, NULL=24651, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73674b96=71, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c28961e=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f9a8d3e=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=24672, NULL=0, NULL=24676, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=24667, NULL=24670, NULL=0, NULL=0, NULL=0, NULL=24659, retValue_acc=1, NULL=24669, NULL=0, NULL=0, NULL=24663, NULL=0, NULL=0, NULL=24660, NULL=0, tmp___2=71, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a88fb2e=0, \result=0, NULL=24662, NULL=24675, NULL=24664, tmp=0, tmp___1=0, head=0, NULL=24650, NULL=0, NULL=24657, NULL=0, NULL=24656, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b044d90=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L175] int cleanupTimeShifts = 4; [L277] int pumpRunning = 0; [L278] int systemActive = 1; [L696] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L251] int retValue_acc ; [L252] int tmp ; [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); [L258] tmp = valid_product() [L260] COND TRUE \read(tmp) [L463] int splverifierCounter ; [L464] int tmp ; [L465] int tmp___0 ; [L466] int tmp___1 ; [L467] int tmp___2 ; [L470] splverifierCounter = 0 Loop: [L472] COND TRUE 1 [L474] COND TRUE splverifierCounter < 4 [L480] tmp = __VERIFIER_nondet_int() [L482] COND FALSE !(\read(tmp)) [L490] tmp___0 = __VERIFIER_nondet_int() [L492] COND FALSE !(\read(tmp___0)) [L500] tmp___2 = __VERIFIER_nondet_int() [L502] COND TRUE \read(tmp___2) [L285] COND FALSE !(\read(pumpRunning)) [L292] COND TRUE \read(systemActive) [L314] int tmp ; [L317] COND FALSE !(\read(pumpRunning)) [L429] int tmp ; [L430] int tmp___0 ; [L431] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L435] tmp = isMethaneLevelCritical() [L437] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L441] tmp___0 = getWaterLevel() [L443] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...