./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product20.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_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/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 27a40004774297289d55c755839f2e0c4b1c44d4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:13:30,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:13:30,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:13:30,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:13:30,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:13:30,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:13:30,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:13:30,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:13:30,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:13:30,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:13:30,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:13:30,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:13:30,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:13:30,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:13:30,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:13:30,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:13:30,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:13:30,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:13:30,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:13:30,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:13:30,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:13:30,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:13:30,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:13:30,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:13:30,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:13:30,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:13:30,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:13:30,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:13:30,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:13:30,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:13:30,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:13:30,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:13:30,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:13:30,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:13:30,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:13:30,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:13:30,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:13:30,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:13:30,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:13:30,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:13:30,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:13:30,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:13:30,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:13:30,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:13:30,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:13:30,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:13:30,698 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:13:30,698 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:13:30,698 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:13:30,698 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:13:30,699 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:13:30,699 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:13:30,700 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:13:30,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:13:30,701 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:13:30,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:13:30,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:13:30,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:13:30,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:13:30,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:13:30,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:13:30,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:13:30,703 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:13:30,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:13:30,703 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:13:30,704 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:13:30,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:13:30,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:13:30,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:13:30,705 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:13:30,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:13:30,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:13:30,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:13:30,708 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:13:30,709 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:13:30,710 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_7d07162f-1af8-4f1d-918d-89a59ade499c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27a40004774297289d55c755839f2e0c4b1c44d4 [2020-11-30 01:13:31,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:13:31,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:13:31,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:13:31,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:13:31,096 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:13:31,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2020-11-30 01:13:31,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/data/f4cce637f/13d79994085649cf96912d2f25443586/FLAG6886b494b [2020-11-30 01:13:31,784 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:13:31,787 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/sv-benchmarks/c/product-lines/minepump_spec5_product20.cil.c [2020-11-30 01:13:31,811 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/data/f4cce637f/13d79994085649cf96912d2f25443586/FLAG6886b494b [2020-11-30 01:13:32,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/data/f4cce637f/13d79994085649cf96912d2f25443586 [2020-11-30 01:13:32,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:13:32,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:13:32,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:32,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:13:32,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:13:32,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8ea2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32, skipping insertion in model container [2020-11-30 01:13:32,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:13:32,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:13:32,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:32,750 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:13:32,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:32,907 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:13:32,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32 WrapperNode [2020-11-30 01:13:32,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:32,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:32,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:13:32,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:13:32,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:32,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:32,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:13:32,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:13:32,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:13:33,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:33,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:33,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:33,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:33,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:33,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:33,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... [2020-11-30 01:13:33,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:13:33,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:13:33,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:13:33,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:13:33,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/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 01:13:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:13:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:13:33,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:13:33,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:13:34,331 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:13:34,333 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-30 01:13:34,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:34 BoogieIcfgContainer [2020-11-30 01:13:34,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:13:34,340 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:13:34,340 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:13:34,344 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:13:34,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:13:34,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:13:32" (1/3) ... [2020-11-30 01:13:34,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@412806de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:13:34, skipping insertion in model container [2020-11-30 01:13:34,347 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:13:34,348 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:32" (2/3) ... [2020-11-30 01:13:34,349 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@412806de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:13:34, skipping insertion in model container [2020-11-30 01:13:34,349 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:13:34,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:34" (3/3) ... [2020-11-30 01:13:34,352 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product20.cil.c [2020-11-30 01:13:34,419 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:13:34,419 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:13:34,419 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:13:34,419 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:13:34,419 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:13:34,419 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:13:34,420 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:13:34,420 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:13:34,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-11-30 01:13:34,471 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 01:13:34,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:13:34,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:13:34,484 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:34,485 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:34,485 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:13:34,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2020-11-30 01:13:34,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-11-30 01:13:34,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:13:34,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:13:34,508 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:34,509 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:34,531 INFO L794 eck$LassoCheckResult]: Stem: 42#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);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~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 15#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; 67#L580true 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; 9#L588true main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 47#L688true assume 0 != main_~tmp~4; 53#L663true ~switchedOnBeforeTS~0 := 0; 36#L512true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 74#L533-1true [2020-11-30 01:13:34,532 INFO L796 eck$LassoCheckResult]: Loop: 74#L533-1true assume !false; 72#L715true assume test_~splverifierCounter~0 < 4; 10#L716true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 16#L724true assume !(0 != test_~tmp~5); 19#L724-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 76#L734true assume !(0 != test_~tmp___0~1); 80#L734-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 60#L744true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 87#L752-1true havoc __utac_acc__Specification5_spec__2_#t~ret52;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 27#L870true __utac_acc__Specification5_spec__2_#t~ret52 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52;havoc __utac_acc__Specification5_spec__2_#t~ret52; 14#L522true assume !(0 != ~pumpRunning~0); 82#L785true assume !(0 != ~systemActive~0); 69#L792true havoc __utac_acc__Specification5_spec__3_#t~ret53, __utac_acc__Specification5_spec__3_#t~ret54, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 38#L490true __utac_acc__Specification5_spec__3_#t~ret53 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret53;havoc __utac_acc__Specification5_spec__3_#t~ret53; 12#L533true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 74#L533-1true [2020-11-30 01:13:34,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:34,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 01:13:34,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:34,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469553754] [2020-11-30 01:13:34,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:34,887 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:35,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:35,147 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:13:35,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:35,154 INFO L82 PathProgramCache]: Analyzing trace with hash 675133688, now seen corresponding path program 1 times [2020-11-30 01:13:35,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:35,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394379754] [2020-11-30 01:13:35,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:35,256 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 01:13:35,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394379754] [2020-11-30 01:13:35,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:35,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:13:35,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685881152] [2020-11-30 01:13:35,268 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:13:35,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:13:35,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:13:35,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:13:35,291 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2020-11-30 01:13:35,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:35,393 INFO L93 Difference]: Finished difference Result 159 states and 221 transitions. [2020-11-30 01:13:35,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:13:35,396 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 221 transitions. [2020-11-30 01:13:35,406 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 102 [2020-11-30 01:13:35,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 145 states and 206 transitions. [2020-11-30 01:13:35,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 145 [2020-11-30 01:13:35,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 145 [2020-11-30 01:13:35,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 206 transitions. [2020-11-30 01:13:35,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:13:35,419 INFO L691 BuchiCegarLoop]: Abstraction has 145 states and 206 transitions. [2020-11-30 01:13:35,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 206 transitions. [2020-11-30 01:13:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2020-11-30 01:13:35,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-11-30 01:13:35,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 203 transitions. [2020-11-30 01:13:35,468 INFO L714 BuchiCegarLoop]: Abstraction has 143 states and 203 transitions. [2020-11-30 01:13:35,469 INFO L594 BuchiCegarLoop]: Abstraction has 143 states and 203 transitions. [2020-11-30 01:13:35,469 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:13:35,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 203 transitions. [2020-11-30 01:13:35,473 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2020-11-30 01:13:35,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:13:35,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:13:35,474 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:35,474 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 01:13:35,475 INFO L794 eck$LassoCheckResult]: Stem: 311#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);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~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 280#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; 281#L580 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; 267#L588 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 268#L688 assume 0 != main_~tmp~4; 314#L663 ~switchedOnBeforeTS~0 := 0; 303#L512 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 304#L533-1 [2020-11-30 01:13:35,475 INFO L796 eck$LassoCheckResult]: Loop: 304#L533-1 assume !false; 375#L715 assume test_~splverifierCounter~0 < 4; 269#L716 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 270#L724 assume !(0 != test_~tmp~5); 283#L724-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 287#L734 assume !(0 != test_~tmp___0~1); 336#L734-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 321#L744 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 323#L752-1 havoc __utac_acc__Specification5_spec__2_#t~ret52;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 296#L870 __utac_acc__Specification5_spec__2_#t~ret52 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52;havoc __utac_acc__Specification5_spec__2_#t~ret52; 277#L522 assume !(0 != ~pumpRunning~0); 278#L785 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 325#L817 assume !(0 != ~pumpRunning~0); 327#L792 havoc __utac_acc__Specification5_spec__3_#t~ret53, __utac_acc__Specification5_spec__3_#t~ret54, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 380#L490 __utac_acc__Specification5_spec__3_#t~ret53 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret53;havoc __utac_acc__Specification5_spec__3_#t~ret53; 378#L533 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 304#L533-1 [2020-11-30 01:13:35,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:35,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 01:13:35,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:35,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868815740] [2020-11-30 01:13:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:35,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:35,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:35,720 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:13:35,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:35,724 INFO L82 PathProgramCache]: Analyzing trace with hash -572685307, now seen corresponding path program 1 times [2020-11-30 01:13:35,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:35,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454029392] [2020-11-30 01:13:35,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:35,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:35,744 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:35,752 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:13:35,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:35,755 INFO L82 PathProgramCache]: Analyzing trace with hash -747445941, now seen corresponding path program 1 times [2020-11-30 01:13:35,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:35,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402281230] [2020-11-30 01:13:35,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:35,866 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 01:13:35,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402281230] [2020-11-30 01:13:35,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:35,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:13:35,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485966399] [2020-11-30 01:13:36,036 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-30 01:13:36,280 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-11-30 01:13:36,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:13:36,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:13:36,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:13:36,300 INFO L87 Difference]: Start difference. First operand 143 states and 203 transitions. cyclomatic complexity: 63 Second operand 5 states. [2020-11-30 01:13:36,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:36,615 INFO L93 Difference]: Finished difference Result 398 states and 558 transitions. [2020-11-30 01:13:36,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:13:36,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 558 transitions. [2020-11-30 01:13:36,636 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2020-11-30 01:13:36,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 558 transitions. [2020-11-30 01:13:36,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2020-11-30 01:13:36,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2020-11-30 01:13:36,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 558 transitions. [2020-11-30 01:13:36,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:13:36,650 INFO L691 BuchiCegarLoop]: Abstraction has 398 states and 558 transitions. [2020-11-30 01:13:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 558 transitions. [2020-11-30 01:13:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 279. [2020-11-30 01:13:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-11-30 01:13:36,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 385 transitions. [2020-11-30 01:13:36,708 INFO L714 BuchiCegarLoop]: Abstraction has 279 states and 385 transitions. [2020-11-30 01:13:36,708 INFO L594 BuchiCegarLoop]: Abstraction has 279 states and 385 transitions. [2020-11-30 01:13:36,708 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:13:36,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 385 transitions. [2020-11-30 01:13:36,711 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 194 [2020-11-30 01:13:36,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:13:36,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:13:36,713 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:36,713 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:36,713 INFO L794 eck$LassoCheckResult]: Stem: 876#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);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~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 839#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; 840#L580 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; 825#L588 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 826#L688 assume 0 != main_~tmp~4; 881#L663 ~switchedOnBeforeTS~0 := 0; 867#L512 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 868#L533-1 [2020-11-30 01:13:36,713 INFO L796 eck$LassoCheckResult]: Loop: 868#L533-1 assume !false; 900#L715 assume test_~splverifierCounter~0 < 4; 901#L716 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 973#L724 assume !(0 != test_~tmp~5); 972#L724-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 971#L734 assume !(0 != test_~tmp___0~1); 969#L734-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 968#L744 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 960#L752-1 havoc __utac_acc__Specification5_spec__2_#t~ret52;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 998#L870 __utac_acc__Specification5_spec__2_#t~ret52 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52;havoc __utac_acc__Specification5_spec__2_#t~ret52; 996#L522 assume !(0 != ~pumpRunning~0); 994#L785 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 991#L817 assume !(0 != ~pumpRunning~0); 988#L792 havoc __utac_acc__Specification5_spec__3_#t~ret53, __utac_acc__Specification5_spec__3_#t~ret54, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 987#L490 __utac_acc__Specification5_spec__3_#t~ret53 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret53;havoc __utac_acc__Specification5_spec__3_#t~ret53; 986#L533 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 985#L870-1 __utac_acc__Specification5_spec__3_#t~ret54 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret54;havoc __utac_acc__Specification5_spec__3_#t~ret54; 984#L537 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 868#L533-1 [2020-11-30 01:13:36,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:36,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 01:13:36,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:36,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098934020] [2020-11-30 01:13:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:36,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:36,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:36,892 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:13:36,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:36,893 INFO L82 PathProgramCache]: Analyzing trace with hash -594781888, now seen corresponding path program 1 times [2020-11-30 01:13:36,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:36,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677866249] [2020-11-30 01:13:36,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:36,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:36,902 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:36,906 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:13:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1036026618, now seen corresponding path program 1 times [2020-11-30 01:13:36,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:13:36,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882280808] [2020-11-30 01:13:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:13:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:36,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:36,996 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:37,016 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:13:37,213 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-11-30 01:15:19,971 WARN L193 SmtUtils]: Spent 1.71 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 01:16:34,099 WARN L193 SmtUtils]: Spent 1.23 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 01:16:34,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:16:34 BoogieIcfgContainer [2020-11-30 01:16:34,450 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:16:34,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:16:34,452 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:16:34,452 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:16:34,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:34" (3/4) ... [2020-11-30 01:16:34,455 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:16:34,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7d07162f-1af8-4f1d-918d-89a59ade499c/bin/uautomizer/witness.graphml [2020-11-30 01:16:34,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:16:34,534 INFO L168 Benchmark]: Toolchain (without parser) took 182466.45 ms. Allocated memory was 119.5 MB in the beginning and 157.3 MB in the end (delta: 37.7 MB). Free memory was 88.1 MB in the beginning and 104.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:34,535 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 77.6 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:34,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 835.85 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 85.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:34,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.84 ms. Allocated memory is still 119.5 MB. Free memory was 85.2 MB in the beginning and 82.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:34,537 INFO L168 Benchmark]: Boogie Preprocessor took 68.67 ms. Allocated memory is still 119.5 MB. Free memory was 82.3 MB in the beginning and 80.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:34,537 INFO L168 Benchmark]: RCFGBuilder took 1263.89 ms. Allocated memory is still 119.5 MB. Free memory was 80.1 MB in the beginning and 58.0 MB in the end (delta: 22.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:34,538 INFO L168 Benchmark]: BuchiAutomizer took 180110.43 ms. Allocated memory was 119.5 MB in the beginning and 157.3 MB in the end (delta: 37.7 MB). Free memory was 58.0 MB in the beginning and 106.9 MB in the end (delta: -48.9 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:34,539 INFO L168 Benchmark]: Witness Printer took 80.90 ms. Allocated memory is still 157.3 MB. Free memory was 106.9 MB in the beginning and 104.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:34,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 77.6 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 835.85 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 85.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.84 ms. Allocated memory is still 119.5 MB. Free memory was 85.2 MB in the beginning and 82.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.67 ms. Allocated memory is still 119.5 MB. Free memory was 82.3 MB in the beginning and 80.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1263.89 ms. Allocated memory is still 119.5 MB. Free memory was 80.1 MB in the beginning and 58.0 MB in the end (delta: 22.1 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 180110.43 ms. Allocated memory was 119.5 MB in the beginning and 157.3 MB in the end (delta: 37.7 MB). Free memory was 58.0 MB in the beginning and 106.9 MB in the end (delta: -48.9 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. * Witness Printer took 80.90 ms. Allocated memory is still 157.3 MB. Free memory was 106.9 MB in the beginning and 104.9 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 5 locations. The remainder module has 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 179.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 179.2s. Construction of modules took 0.2s. 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, 121 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 279 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 281 SDtfs, 458 SDslu, 422 SDs, 0 SdLazy, 92 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 714]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22943} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=22943, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26c1e3ea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c69d8a3=0, NULL=0, NULL=22964, retValue_acc=0, NULL=0, NULL=22968, NULL=22946, methaneLevelCritical=0, NULL=22965, tmp=1, NULL=22970, tmp=0, NULL=0, NULL=0, NULL=22953, tmp___1=0, NULL=22958, NULL=0, NULL=0, NULL=22948, NULL=22966, NULL=22954, retValue_acc=0, cleanupTimeShifts=4, NULL=22962, switchedOnBeforeTS=0, NULL=22944, NULL=22945, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=22949, NULL=22957, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=22971, \result=0, NULL=22952, tmp=1, NULL=0, NULL=22951, NULL=0, NULL=0, NULL=0, NULL=0, NULL=22961, NULL=0, retValue_acc=1, NULL=0, NULL=0, NULL=22963, NULL=0, tmp___2=72, retValue_acc=1, NULL=22959, tmp___0=0, NULL=22955, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@959ad7f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d663b41=0, NULL=22956, NULL=22969, NULL=22947, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dba9eb4=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25ff2f3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e0085a0=0, head=0, NULL=0, NULL=0, tmp=0, NULL=22960, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46afef07=0, NULL=22967, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@299added=0, NULL=22950} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L506] int switchedOnBeforeTS ; [L602] int cleanupTimeShifts = 4; [L775] int pumpRunning = 0; [L776] int systemActive = 1; [L679] int retValue_acc ; [L680] int tmp ; [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); [L686] tmp = valid_product() [L688] COND TRUE \read(tmp) [L511] switchedOnBeforeTS = 0 [L705] int splverifierCounter ; [L706] int tmp ; [L707] int tmp___0 ; [L708] int tmp___1 ; [L709] int tmp___2 ; [L712] splverifierCounter = 0 Loop: [L714] COND TRUE 1 [L716] COND TRUE splverifierCounter < 4 [L722] tmp = __VERIFIER_nondet_int() [L724] COND FALSE !(\read(tmp)) [L732] tmp___0 = __VERIFIER_nondet_int() [L734] COND FALSE !(\read(tmp___0)) [L742] tmp___2 = __VERIFIER_nondet_int() [L744] COND TRUE \read(tmp___2) [L948] systemActive = 1 [L866] int retValue_acc ; [L869] retValue_acc = pumpRunning [L870] return (retValue_acc); [L520] switchedOnBeforeTS = isPumpRunning() [L785] COND FALSE !(\read(pumpRunning)) [L792] COND TRUE \read(systemActive) [L814] int tmp ; [L817] COND FALSE !(\read(pumpRunning)) [L526] int tmp ; [L527] int tmp___0 ; [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); [L531] tmp = getWaterLevel() [L533] COND TRUE tmp != 2 [L866] int retValue_acc ; [L869] retValue_acc = pumpRunning [L870] return (retValue_acc); [L535] tmp___0 = isPumpRunning() [L537] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...