./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.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_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/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 46490a57ce91137af910512252196515ce511def ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 19:53:41,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:53:41,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:53:41,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:53:41,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:53:41,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:53:41,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:53:41,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:53:41,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:53:41,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:53:41,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:53:41,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:53:41,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:53:41,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:53:41,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:53:41,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:53:41,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:53:41,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:53:41,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:53:41,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:53:41,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:53:41,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:53:41,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:53:41,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:53:41,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:53:41,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:53:41,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:53:41,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:53:41,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:53:41,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:53:41,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:53:41,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:53:41,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:53:41,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:53:41,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:53:41,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:53:41,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:53:41,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:53:41,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:53:41,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:53:41,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:53:41,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:53:41,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:53:41,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:53:41,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:53:41,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:53:41,687 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:53:41,688 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:53:41,688 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:53:41,688 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:53:41,688 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:53:41,689 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:53:41,690 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:53:41,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:53:41,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:53:41,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:53:41,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:53:41,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:53:41,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:53:41,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:53:41,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:53:41,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:53:41,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:53:41,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:53:41,693 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:53:41,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:53:41,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:53:41,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:53:41,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:53:41,694 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:53:41,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:53:41,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:53:41,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:53:41,696 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:53:41,697 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:53:41,697 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_87301357-eb29-4b0a-8e03-3074d3a147c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46490a57ce91137af910512252196515ce511def [2020-11-29 19:53:41,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:53:42,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:53:42,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:53:42,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:53:42,014 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:53:42,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2020-11-29 19:53:42,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/data/6959213c2/f64ca4ec4e1840e5bc13d001aad145c4/FLAG4c9cd5c25 [2020-11-29 19:53:42,875 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:53:42,885 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2020-11-29 19:53:42,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/data/6959213c2/f64ca4ec4e1840e5bc13d001aad145c4/FLAG4c9cd5c25 [2020-11-29 19:53:43,119 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/data/6959213c2/f64ca4ec4e1840e5bc13d001aad145c4 [2020-11-29 19:53:43,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:53:43,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:53:43,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:53:43,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:53:43,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:53:43,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291b5a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43, skipping insertion in model container [2020-11-29 19:53:43,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:53:43,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:53:43,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:53:43,597 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:53:43,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:53:43,766 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:53:43,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43 WrapperNode [2020-11-29 19:53:43,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:53:43,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:53:43,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:53:43,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:53:43,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:53:43,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:53:43,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:53:43,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:53:43,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... [2020-11-29 19:53:43,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:53:43,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:53:43,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:53:43,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:53:43,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/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 19:53:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:53:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:53:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:53:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:53:45,362 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:53:45,362 INFO L298 CfgBuilder]: Removed 164 assume(true) statements. [2020-11-29 19:53:45,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:53:45 BoogieIcfgContainer [2020-11-29 19:53:45,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:53:45,366 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:53:45,366 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:53:45,370 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:53:45,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:53:45,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:53:43" (1/3) ... [2020-11-29 19:53:45,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7906892c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:53:45, skipping insertion in model container [2020-11-29 19:53:45,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:53:45,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:53:43" (2/3) ... [2020-11-29 19:53:45,374 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7906892c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:53:45, skipping insertion in model container [2020-11-29 19:53:45,374 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:53:45,374 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:53:45" (3/3) ... [2020-11-29 19:53:45,376 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-11-29 19:53:45,424 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:53:45,425 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:53:45,425 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:53:45,425 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:53:45,425 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:53:45,426 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:53:45,426 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:53:45,426 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:53:45,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-11-29 19:53:45,475 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-29 19:53:45,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:45,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:45,490 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:45,491 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:45,491 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:53:45,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states. [2020-11-29 19:53:45,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2020-11-29 19:53:45,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:45,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:45,503 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:45,503 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:45,509 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(80, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(117, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(109, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(112, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(110, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 3 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(32, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true havoc main_#res;havoc main_#t~ret19, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 108#L305true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 112#L313true main_#t~ret19 := valid_product_#res;main_~tmp~1 := main_#t~ret19;havoc main_#t~ret19; 116#L269true assume 0 != main_~tmp~1; 74#L242true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 31#L53-1true [2020-11-29 19:53:45,510 INFO L796 eck$LassoCheckResult]: Loop: 31#L53-1true assume !false; 99#L330true assume test_~splverifierCounter~0 < 4; 42#L331true test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 44#L339true assume !(0 != test_~tmp~2); 45#L339-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 104#L349true assume !(0 != test_~tmp___0~1); 107#L349-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 18#L359true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 26#L367-2true assume !(0 != ~pumpRunning~0); 101#L404true assume !(0 != ~systemActive~0); 36#L411true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 87#L121true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 43#L53true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 31#L53-1true [2020-11-29 19:53:45,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:45,517 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:53:45,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:45,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026033213] [2020-11-29 19:53:45,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:45,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:45,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:46,056 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:46,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:46,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1678820859, now seen corresponding path program 1 times [2020-11-29 19:53:46,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:46,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529367825] [2020-11-29 19:53:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:53:46,133 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 19:53:46,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529367825] [2020-11-29 19:53:46,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:53:46,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:53:46,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975304099] [2020-11-29 19:53:46,142 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:53:46,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:53:46,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:53:46,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:53:46,160 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 3 states. [2020-11-29 19:53:46,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:53:46,261 INFO L93 Difference]: Finished difference Result 114 states and 164 transitions. [2020-11-29 19:53:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:53:46,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 164 transitions. [2020-11-29 19:53:46,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 19:53:46,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2020-11-29 19:53:46,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2020-11-29 19:53:46,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2020-11-29 19:53:46,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2020-11-29 19:53:46,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:53:46,286 INFO L691 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-29 19:53:46,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2020-11-29 19:53:46,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-29 19:53:46,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-29 19:53:46,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2020-11-29 19:53:46,321 INFO L714 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-29 19:53:46,321 INFO L594 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2020-11-29 19:53:46,321 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:53:46,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2020-11-29 19:53:46,324 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2020-11-29 19:53:46,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:46,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:46,326 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:46,326 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:46,326 INFO L794 eck$LassoCheckResult]: Stem: 335#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(80, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(117, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(109, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(112, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(110, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 3 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(32, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 252#L-1 havoc main_#res;havoc main_#t~ret19, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 253#L305 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 345#L313 main_#t~ret19 := valid_product_#res;main_~tmp~1 := main_#t~ret19;havoc main_#t~ret19; 346#L269 assume 0 != main_~tmp~1; 332#L242 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 285#L53-1 [2020-11-29 19:53:46,326 INFO L796 eck$LassoCheckResult]: Loop: 285#L53-1 assume !false; 286#L330 assume test_~splverifierCounter~0 < 4; 296#L331 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 297#L339 assume !(0 != test_~tmp~2); 301#L339-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 302#L349 assume !(0 != test_~tmp___0~1); 304#L349-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 267#L359 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 268#L367-2 assume !(0 != ~pumpRunning~0); 251#L404 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret26, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 340#L462 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret25, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 261#L436-1 assume !(0 == ~pumpRunning~0); 259#L411 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 291#L121 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 298#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 285#L53-1 [2020-11-29 19:53:46,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:46,327 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:53:46,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:46,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693900844] [2020-11-29 19:53:46,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:46,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:46,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:46,568 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:46,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:46,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1079829885, now seen corresponding path program 1 times [2020-11-29 19:53:46,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:46,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780376750] [2020-11-29 19:53:46,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:53:46,629 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 19:53:46,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780376750] [2020-11-29 19:53:46,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:53:46,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:53:46,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066875061] [2020-11-29 19:53:46,631 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:53:46,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:53:46,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:53:46,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:53:46,637 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand 3 states. [2020-11-29 19:53:46,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:53:46,776 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2020-11-29 19:53:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:53:46,777 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2020-11-29 19:53:46,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2020-11-29 19:53:46,783 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2020-11-29 19:53:46,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2020-11-29 19:53:46,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2020-11-29 19:53:46,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2020-11-29 19:53:46,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:53:46,786 INFO L691 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2020-11-29 19:53:46,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2020-11-29 19:53:46,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-11-29 19:53:46,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-29 19:53:46,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2020-11-29 19:53:46,809 INFO L714 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2020-11-29 19:53:46,810 INFO L594 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2020-11-29 19:53:46,810 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:53:46,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2020-11-29 19:53:46,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2020-11-29 19:53:46,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:53:46,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:53:46,815 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:53:46,817 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:53:46,818 INFO L794 eck$LassoCheckResult]: Stem: 602#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(80, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(117, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(109, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(112, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(110, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(102, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 3 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(32, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 513#L-1 havoc main_#res;havoc main_#t~ret19, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 514#L305 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 614#L313 main_#t~ret19 := valid_product_#res;main_~tmp~1 := main_#t~ret19;havoc main_#t~ret19; 616#L269 assume 0 != main_~tmp~1; 598#L242 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 599#L53-1 [2020-11-29 19:53:46,818 INFO L796 eck$LassoCheckResult]: Loop: 599#L53-1 assume !false; 611#L330 assume test_~splverifierCounter~0 < 4; 562#L331 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 563#L339 assume !(0 != test_~tmp~2); 567#L339-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 568#L349 assume !(0 != test_~tmp___0~1); 570#L349-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 529#L359 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 530#L367-2 assume !(0 != ~pumpRunning~0); 542#L404 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret26, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 607#L462 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret25, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 523#L436-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret44, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 524#L161-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 525#L166-1 isHighWaterLevel_#t~ret44 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret44;havoc isHighWaterLevel_#t~ret44; 539#L564-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; 603#L564-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 571#L570-1 processEnvironment__wrappee__highWaterSensor_#t~ret25 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret25;havoc processEnvironment__wrappee__highWaterSensor_#t~ret25; 572#L440-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 553#L411 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 637#L121 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 635#L53 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 599#L53-1 [2020-11-29 19:53:46,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:46,824 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-29 19:53:46,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:46,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411242512] [2020-11-29 19:53:46,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:46,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:46,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:46,963 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:46,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:46,964 INFO L82 PathProgramCache]: Analyzing trace with hash -246413041, now seen corresponding path program 1 times [2020-11-29 19:53:46,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:46,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833307001] [2020-11-29 19:53:46,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:46,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:46,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:46,982 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:46,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:53:46,983 INFO L82 PathProgramCache]: Analyzing trace with hash 209658153, now seen corresponding path program 1 times [2020-11-29 19:53:46,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:53:46,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29901187] [2020-11-29 19:53:46,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:53:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:47,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:53:47,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:53:47,169 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:53:47,295 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-11-29 19:55:10,401 WARN L193 SmtUtils]: Spent 1.38 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:56:02,273 WARN L193 SmtUtils]: Spent 51.86 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:56:02,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:56:02 BoogieIcfgContainer [2020-11-29 19:56:02,511 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:56:02,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:56:02,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:56:02,512 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:56:02,512 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:53:45" (3/4) ... [2020-11-29 19:56:02,516 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:56:02,572 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_87301357-eb29-4b0a-8e03-3074d3a147c3/bin/uautomizer/witness.graphml [2020-11-29 19:56:02,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:56:02,574 INFO L168 Benchmark]: Toolchain (without parser) took 139446.50 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 80.1 MB in the beginning and 76.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:02,575 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:56:02,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.41 ms. Allocated memory is still 111.1 MB. Free memory was 79.9 MB in the beginning and 77.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:02,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.07 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 74.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:02,577 INFO L168 Benchmark]: Boogie Preprocessor took 99.44 ms. Allocated memory is still 111.1 MB. Free memory was 74.1 MB in the beginning and 72.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:02,577 INFO L168 Benchmark]: RCFGBuilder took 1370.23 ms. Allocated memory is still 111.1 MB. Free memory was 71.3 MB in the beginning and 65.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:02,578 INFO L168 Benchmark]: BuchiAutomizer took 137145.14 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 65.0 MB in the beginning and 78.5 MB in the end (delta: -13.5 MB). Peak memory consumption was 73.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:02,579 INFO L168 Benchmark]: Witness Printer took 61.50 ms. Allocated memory is still 144.7 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:02,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 636.41 ms. Allocated memory is still 111.1 MB. Free memory was 79.9 MB in the beginning and 77.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 120.07 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 74.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.44 ms. Allocated memory is still 111.1 MB. Free memory was 74.1 MB in the beginning and 72.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1370.23 ms. Allocated memory is still 111.1 MB. Free memory was 71.3 MB in the beginning and 65.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 137145.14 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 65.0 MB in the beginning and 78.5 MB in the end (delta: -13.5 MB). Peak memory consumption was 73.4 MB. Max. memory is 16.1 GB. * Witness Printer took 61.50 ms. Allocated memory is still 144.7 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 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 3 locations. The remainder module has 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 137.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 136.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 319 SDtfs, 264 SDslu, 66 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 329]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11585} State at position 1 is {NULL=0, NULL=0, NULL=48268, NULL=11585, NULL=0, NULL=48257, NULL=48270, methaneLevelCritical=0, tmp=0, NULL=0, NULL=48267, retValue_acc=0, NULL=48271, NULL=0, tmp___1=0, NULL=22934, NULL=0, NULL=48259, cleanupTimeShifts=4, NULL=48275, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c766ef7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fa2f34e=0, waterLevel=1, NULL=0, \result=1, head=0, pumpRunning=0, NULL=22937, tmp=1, retValue_acc=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43e94797=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60c91ab1=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6767c04c=0, tmp=0, \result=1, NULL=0, NULL=0, NULL=48256, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, tmp___0=0, NULL=11586, NULL=48260, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d8d4218=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19227982=0, head=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=48258, retValue_acc=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fe2b839=0, NULL=0, NULL=48274, tmp___0=0, NULL=0, NULL=0, NULL=22935, NULL=48277, NULL=0, NULL=0, tmp___0=0, tmp=0, NULL=48278, NULL=0, NULL=0, systemActive=1, NULL=48272, NULL=0, NULL=48269, \result=0, NULL=0, NULL=48276, NULL=48265, \result=0, NULL=22936, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f15b5c2=0, NULL=0, NULL=0, NULL=48262, retValue_acc=1, NULL=48273, NULL=48263, tmp___2=59, splverifierCounter=0, NULL=0, \result=0, NULL=48264, NULL=48266, NULL=48261, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@318317e1=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L78] int waterLevel = 1; [L79] int methaneLevelCritical = 0; [L181] int cleanupTimeShifts = 4; [L397] int pumpRunning = 0; [L398] int systemActive = 1; [L771] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L260] int retValue_acc ; [L261] int tmp ; [L309] int retValue_acc ; [L312] retValue_acc = 1 [L313] return (retValue_acc); [L267] tmp = valid_product() [L269] COND TRUE \read(tmp) [L320] int splverifierCounter ; [L321] int tmp ; [L322] int tmp___0 ; [L323] int tmp___1 ; [L324] int tmp___2 ; [L327] splverifierCounter = 0 Loop: [L329] COND TRUE 1 [L331] COND TRUE splverifierCounter < 4 [L337] tmp = __VERIFIER_nondet_int() [L339] COND FALSE !(\read(tmp)) [L347] tmp___0 = __VERIFIER_nondet_int() [L349] COND FALSE !(\read(tmp___0)) [L357] tmp___2 = __VERIFIER_nondet_int() [L359] COND TRUE \read(tmp___2) [L597] systemActive = 1 [L404] COND FALSE !(\read(pumpRunning)) [L411] COND TRUE \read(systemActive) [L459] int tmp ; [L462] COND FALSE !(\read(pumpRunning)) [L433] int tmp ; [L436] COND TRUE ! pumpRunning [L556] int retValue_acc ; [L557] int tmp ; [L558] int tmp___0 ; [L158] int retValue_acc ; [L161] COND TRUE waterLevel < 2 [L162] retValue_acc = 1 [L163] return (retValue_acc); [L562] tmp = isHighWaterSensorDry() [L564] COND TRUE \read(tmp) [L565] tmp___0 = 0 [L569] retValue_acc = tmp___0 [L570] return (retValue_acc); [L438] tmp = isHighWaterLevel() [L440] COND FALSE !(\read(tmp)) [L46] int tmp ; [L47] int tmp___0 ; [L117] int retValue_acc ; [L120] retValue_acc = methaneLevelCritical [L121] return (retValue_acc); [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...