./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product25.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_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/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 5b0e9ceed31cf921db72d6c1708a08263854c92a ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:57:52,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:57:52,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:57:52,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:57:52,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:57:52,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:57:52,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:57:52,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:57:52,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:57:52,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:57:52,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:57:52,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:57:52,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:57:52,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:57:52,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:57:52,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:57:52,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:57:52,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:57:52,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:57:52,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:57:52,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:57:52,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:57:52,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:57:52,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:57:52,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:57:52,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:57:52,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:57:52,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:57:52,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:57:52,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:57:52,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:57:52,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:57:52,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:57:52,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:57:52,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:57:52,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:57:52,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:57:52,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:57:52,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:57:52,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:57:52,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:57:52,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:57:52,792 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:57:52,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:57:52,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:57:52,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:57:52,796 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:57:52,796 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:57:52,796 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:57:52,797 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:57:52,797 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:57:52,797 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:57:52,798 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:57:52,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:57:52,799 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:57:52,799 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:57:52,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:57:52,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:57:52,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:57:52,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:57:52,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:57:52,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:57:52,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:57:52,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:57:52,802 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:57:52,802 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:57:52,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:57:52,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:57:52,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:57:52,803 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:57:52,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:57:52,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:57:52,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:57:52,806 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:57:52,807 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:57:52,807 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_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b0e9ceed31cf921db72d6c1708a08263854c92a [2020-11-29 23:57:53,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:57:53,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:57:53,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:57:53,134 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:57:53,135 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:57:53,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2020-11-29 23:57:53,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/data/0ee3339c9/c6cc3d2ce8924d90950e5b021016cd36/FLAG4d02ea6a9 [2020-11-29 23:57:53,829 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:57:53,829 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2020-11-29 23:57:53,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/data/0ee3339c9/c6cc3d2ce8924d90950e5b021016cd36/FLAG4d02ea6a9 [2020-11-29 23:57:54,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/data/0ee3339c9/c6cc3d2ce8924d90950e5b021016cd36 [2020-11-29 23:57:54,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:57:54,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:57:54,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:54,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:57:54,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:57:54,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c79a66e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54, skipping insertion in model container [2020-11-29 23:57:54,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:57:54,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:57:54,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:54,534 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:57:54,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:54,636 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:57:54,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54 WrapperNode [2020-11-29 23:57:54,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:54,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:54,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:57:54,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:57:54,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:54,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:57:54,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:57:54,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:57:54,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... [2020-11-29 23:57:54,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:57:54,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:57:54,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:57:54,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:57:54,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/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 23:57:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:57:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:57:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:57:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:57:55,819 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:57:55,820 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-29 23:57:55,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:55 BoogieIcfgContainer [2020-11-29 23:57:55,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:57:55,823 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:57:55,823 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:57:55,826 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:57:55,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:57:55,827 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:57:54" (1/3) ... [2020-11-29 23:57:55,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c7048e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:57:55, skipping insertion in model container [2020-11-29 23:57:55,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:57:55,829 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:54" (2/3) ... [2020-11-29 23:57:55,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c7048e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:57:55, skipping insertion in model container [2020-11-29 23:57:55,830 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:57:55,830 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:55" (3/3) ... [2020-11-29 23:57:55,831 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2020-11-29 23:57:55,892 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:57:55,892 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:57:55,892 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:57:55,893 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:57:55,893 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:57:55,893 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:57:55,893 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:57:55,893 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:57:55,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-29 23:57:55,930 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 23:57:55,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:55,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:55,938 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:57:55,938 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:55,938 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:57:55,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2020-11-29 23:57:55,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2020-11-29 23:57:55,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:55,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:55,945 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:57:55,946 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:55,951 INFO L794 eck$LassoCheckResult]: Stem: 48#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~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 18#L-1true havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 21#L574true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 55#L582true main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 9#L672true assume 0 != main_~tmp~4; 50#L648true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 70#L61-1true [2020-11-29 23:57:55,951 INFO L796 eck$LassoCheckResult]: Loop: 70#L61-1true assume !false; 81#L869true assume test_~splverifierCounter~0 < 4; 30#L870true test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 37#L878true assume !(0 != test_~tmp~8); 39#L878-1true test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 4#L888true assume !(0 != test_~tmp___0~2); 5#L888-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 69#L898true assume 0 != test_~tmp___2~0; 56#L904-2true assume !(0 != ~pumpRunning~0); 40#L695true assume !(0 != ~systemActive~0); 22#L702true havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 71#L503true __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 53#L55true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 70#L61-1true [2020-11-29 23:57:55,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:55,958 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 23:57:55,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:55,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271215625] [2020-11-29 23:57:55,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:56,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:56,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:56,340 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:56,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:56,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1681683787, now seen corresponding path program 1 times [2020-11-29 23:57:56,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:56,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021351114] [2020-11-29 23:57:56,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:56,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:56,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:56,380 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:56,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:56,386 INFO L82 PathProgramCache]: Analyzing trace with hash 32595151, now seen corresponding path program 1 times [2020-11-29 23:57:56,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:56,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877779758] [2020-11-29 23:57:56,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:56,556 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 23:57:56,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877779758] [2020-11-29 23:57:56,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:57:56,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:57:56,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025485751] [2020-11-29 23:57:56,667 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-11-29 23:57:56,790 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-11-29 23:57:56,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:57:56,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:57:56,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:57:56,816 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 6 states. [2020-11-29 23:57:57,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:57:57,150 INFO L93 Difference]: Finished difference Result 78 states and 106 transitions. [2020-11-29 23:57:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:57:57,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 106 transitions. [2020-11-29 23:57:57,157 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-29 23:57:57,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 99 transitions. [2020-11-29 23:57:57,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2020-11-29 23:57:57,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2020-11-29 23:57:57,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 99 transitions. [2020-11-29 23:57:57,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:57:57,173 INFO L691 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-11-29 23:57:57,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 99 transitions. [2020-11-29 23:57:57,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-29 23:57:57,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 23:57:57,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-11-29 23:57:57,210 INFO L714 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-11-29 23:57:57,210 INFO L594 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-11-29 23:57:57,211 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:57:57,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 99 transitions. [2020-11-29 23:57:57,218 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2020-11-29 23:57:57,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:57,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:57,219 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:57:57,219 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:57,219 INFO L794 eck$LassoCheckResult]: Stem: 230#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~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 203#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 204#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 206#L582 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 193#L672 assume 0 != main_~tmp~4; 194#L648 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 209#L61-1 [2020-11-29 23:57:57,219 INFO L796 eck$LassoCheckResult]: Loop: 209#L61-1 assume !false; 246#L869 assume test_~splverifierCounter~0 < 4; 213#L870 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 214#L878 assume !(0 != test_~tmp~8); 221#L878-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 179#L888 assume !(0 != test_~tmp___0~2); 180#L888-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 185#L898 assume 0 != test_~tmp___2~0; 232#L904-2 assume !(0 != ~pumpRunning~0); 222#L695 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 182#L727 assume !(0 != ~pumpRunning~0); 184#L702 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 205#L503 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 234#L55 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 209#L61-1 [2020-11-29 23:57:57,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:57,220 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 23:57:57,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:57,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171392014] [2020-11-29 23:57:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:57,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:57,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:57,395 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:57,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:57,403 INFO L82 PathProgramCache]: Analyzing trace with hash -619582386, now seen corresponding path program 1 times [2020-11-29 23:57:57,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:57,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496819478] [2020-11-29 23:57:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:57,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:57,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:57,429 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:57,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:57,434 INFO L82 PathProgramCache]: Analyzing trace with hash 983457140, now seen corresponding path program 1 times [2020-11-29 23:57:57,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:57,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137877531] [2020-11-29 23:57:57,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:57,521 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 23:57:57,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137877531] [2020-11-29 23:57:57,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:57:57,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:57:57,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93039075] [2020-11-29 23:57:57,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:57:57,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:57:57,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:57:57,616 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. cyclomatic complexity: 30 Second operand 5 states. [2020-11-29 23:57:57,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:57:57,830 INFO L93 Difference]: Finished difference Result 241 states and 345 transitions. [2020-11-29 23:57:57,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:57:57,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 345 transitions. [2020-11-29 23:57:57,835 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2020-11-29 23:57:57,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 241 states and 345 transitions. [2020-11-29 23:57:57,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2020-11-29 23:57:57,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2020-11-29 23:57:57,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 345 transitions. [2020-11-29 23:57:57,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:57:57,853 INFO L691 BuchiCegarLoop]: Abstraction has 241 states and 345 transitions. [2020-11-29 23:57:57,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 345 transitions. [2020-11-29 23:57:57,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 136. [2020-11-29 23:57:57,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-29 23:57:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2020-11-29 23:57:57,869 INFO L714 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2020-11-29 23:57:57,869 INFO L594 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2020-11-29 23:57:57,869 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:57:57,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 188 transitions. [2020-11-29 23:57:57,876 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2020-11-29 23:57:57,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:57:57,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:57:57,877 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:57:57,877 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:57,877 INFO L794 eck$LassoCheckResult]: Stem: 563#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~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 530#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 531#L574 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 536#L582 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 520#L672 assume 0 != main_~tmp~4; 521#L648 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 543#L61-1 [2020-11-29 23:57:57,878 INFO L796 eck$LassoCheckResult]: Loop: 543#L61-1 assume !false; 586#L869 assume test_~splverifierCounter~0 < 4; 545#L870 test_~tmp~8 := test_#t~nondet77;havoc test_#t~nondet77; 546#L878 assume !(0 != test_~tmp~8); 553#L878-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 509#L888 assume !(0 != test_~tmp___0~2); 510#L888-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 585#L898 assume 0 != test_~tmp___2~0; 567#L904-2 assume !(0 != ~pumpRunning~0); 554#L695 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 555#L727 assume !(0 != ~pumpRunning~0); 537#L702 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 538#L503 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 570#L55 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 571#L535 __utac_acc__Specification3_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 590#L61 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 543#L61-1 [2020-11-29 23:57:57,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:57,879 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 23:57:57,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:57,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007169527] [2020-11-29 23:57:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:57,946 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:58,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:58,015 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:58,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:58,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1581787106, now seen corresponding path program 1 times [2020-11-29 23:57:58,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:58,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740301315] [2020-11-29 23:57:58,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:58,021 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:58,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:58,027 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:58,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:58,028 INFO L82 PathProgramCache]: Analyzing trace with hash 209512328, now seen corresponding path program 1 times [2020-11-29 23:57:58,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:58,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261408808] [2020-11-29 23:57:58,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:58,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:58,129 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:58,153 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:59:21,334 WARN L193 SmtUtils]: Spent 1.38 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 00:00:20,869 WARN L193 SmtUtils]: Spent 59.53 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 00:00:21,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:00:21 BoogieIcfgContainer [2020-11-30 00:00:21,095 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:00:21,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:00:21,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:00:21,097 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:00:21,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:55" (3/4) ... [2020-11-30 00:00:21,104 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:00:21,154 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_38b5cc1a-92ab-4c13-9eed-af7d89a0c3c3/bin/uautomizer/witness.graphml [2020-11-30 00:00:21,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:00:21,156 INFO L168 Benchmark]: Toolchain (without parser) took 147026.08 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 67.4 MB in the beginning and 71.0 MB in the end (delta: -3.6 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:21,156 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 53.7 MB in the end (delta: 45.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:00:21,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.60 ms. Allocated memory is still 96.5 MB. Free memory was 67.1 MB in the beginning and 64.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:21,158 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.42 ms. Allocated memory is still 96.5 MB. Free memory was 64.8 MB in the beginning and 61.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:21,158 INFO L168 Benchmark]: Boogie Preprocessor took 36.64 ms. Allocated memory is still 96.5 MB. Free memory was 61.7 MB in the beginning and 59.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:21,159 INFO L168 Benchmark]: RCFGBuilder took 1056.62 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 58.7 MB in the end (delta: 899.3 kB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:21,160 INFO L168 Benchmark]: BuchiAutomizer took 145272.25 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 58.7 MB in the beginning and 72.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:21,160 INFO L168 Benchmark]: Witness Printer took 58.82 ms. Allocated memory is still 142.6 MB. Free memory was 72.9 MB in the beginning and 71.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:21,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 53.7 MB in the end (delta: 45.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 508.60 ms. Allocated memory is still 96.5 MB. Free memory was 67.1 MB in the beginning and 64.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.42 ms. Allocated memory is still 96.5 MB. Free memory was 64.8 MB in the beginning and 61.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.64 ms. Allocated memory is still 96.5 MB. Free memory was 61.7 MB in the beginning and 59.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1056.62 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 58.7 MB in the end (delta: 899.3 kB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 145272.25 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 58.7 MB in the beginning and 72.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. * Witness Printer took 58.82 ms. Allocated memory is still 142.6 MB. Free memory was 72.9 MB in the beginning and 71.0 MB in the end (delta: 2.0 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 136 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 145.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 144.4s. 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, 105 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 136 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 236 SDtfs, 672 SDslu, 402 SDs, 0 SdLazy, 51 SolverSat, 18 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: 868]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1635} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=1635, NULL=7583, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a98b6fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bf94115=0, NULL=7605, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68f5e3c3=0, NULL=0, NULL=0, NULL=7595, NULL=7586, retValue_acc=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e1b85e0=0, NULL=7590, NULL=0, NULL=0, NULL=7587, NULL=7588, NULL=0, tmp___1=0, tmp=0, NULL=7580, NULL=0, NULL=0, tmp___0=1, NULL=1637, NULL=7589, tmp=0, cleanupTimeShifts=4, NULL=7596, NULL=7584, NULL=7592, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39786fb0=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@668b91bf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@595dbeb3=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=7604, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@615b7594=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=7599, \result=1, head=0, pumpRunning=0, \result=0, NULL=7581, tmp=1, NULL=0, NULL=7593, NULL=7603, NULL=7600, retValue_acc=1, NULL=0, NULL=7594, NULL=0, NULL=7602, tmp___2=57, NULL=0, tmp___0=0, retValue_acc=1, NULL=7585, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@888151b=0, \result=0, NULL=7601, NULL=1636, tmp___1=0, head=0, NULL=0, tmp=0, NULL=7582, NULL=0, NULL=0, NULL=0, NULL=7591, NULL=7597, NULL=0, NULL=7598} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L587] int cleanupTimeShifts = 4; [L688] int pumpRunning = 0; [L689] int systemActive = 1; [L663] int retValue_acc ; [L664] int tmp ; [L578] int retValue_acc ; [L581] retValue_acc = 1 [L582] return (retValue_acc); [L670] tmp = valid_product() [L672] COND TRUE \read(tmp) [L859] int splverifierCounter ; [L860] int tmp ; [L861] int tmp___0 ; [L862] int tmp___1 ; [L863] int tmp___2 ; [L866] splverifierCounter = 0 Loop: [L868] COND TRUE 1 [L870] COND TRUE splverifierCounter < 4 [L876] tmp = __VERIFIER_nondet_int() [L878] COND FALSE !(\read(tmp)) [L886] tmp___0 = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp___0)) [L896] tmp___2 = __VERIFIER_nondet_int() [L898] COND TRUE \read(tmp___2) [L695] COND FALSE !(\read(pumpRunning)) [L702] COND TRUE \read(systemActive) [L724] int tmp ; [L727] COND FALSE !(\read(pumpRunning)) [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L531] int retValue_acc ; [L534] retValue_acc = waterLevel [L535] return (retValue_acc); [L59] tmp___0 = getWaterLevel() [L61] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...