./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/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 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:27:17,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:27:17,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:27:17,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:27:17,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:27:17,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:27:17,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:27:17,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:27:17,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:27:17,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:27:17,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:27:17,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:27:17,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:27:17,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:27:17,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:27:17,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:27:17,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:27:17,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:27:17,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:27:17,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:27:17,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:27:17,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:27:17,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:27:17,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:27:17,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:27:17,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:27:17,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:27:17,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:27:17,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:27:17,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:27:17,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:27:17,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:27:17,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:27:17,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:27:17,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:27:17,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:27:17,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:27:17,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:27:17,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:27:17,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:27:17,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:27:17,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 01:27:17,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:27:17,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:27:17,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:27:17,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:27:17,579 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:27:17,579 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 01:27:17,580 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 01:27:17,580 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 01:27:17,580 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 01:27:17,580 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 01:27:17,582 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 01:27:17,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:27:17,582 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:27:17,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:27:17,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:27:17,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:27:17,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:27:17,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 01:27:17,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 01:27:17,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 01:27:17,584 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:27:17,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:27:17,585 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 01:27:17,585 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:27:17,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 01:27:17,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:27:17,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:27:17,587 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 01:27:17,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:27:17,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:27:17,587 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:27:17,588 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 01:27:17,589 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 01:27:17,590 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_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 [2020-11-30 01:27:17,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:27:17,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:27:17,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:27:17,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:27:17,935 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:27:17,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2020-11-30 01:27:18,023 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/data/1ebf820da/70105f0858cd4521944548324013aef9/FLAG89fc43f30 [2020-11-30 01:27:18,851 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:27:18,853 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2020-11-30 01:27:18,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/data/1ebf820da/70105f0858cd4521944548324013aef9/FLAG89fc43f30 [2020-11-30 01:27:19,109 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/data/1ebf820da/70105f0858cd4521944548324013aef9 [2020-11-30 01:27:19,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:27:19,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:27:19,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:19,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:27:19,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:27:19,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:19,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23bd5a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19, skipping insertion in model container [2020-11-30 01:27:19,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:19,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:27:19,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:27:19,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:19,764 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:27:19,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:27:19,962 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:27:19,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19 WrapperNode [2020-11-30 01:27:19,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:27:19,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:27:19,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:27:19,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:27:19,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:20,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:20,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:27:20,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:27:20,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:27:20,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:27:20,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:20,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:20,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:20,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:20,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:20,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:20,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... [2020-11-30 01:27:20,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:27:20,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:27:20,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:27:20,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:27:20,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/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 01:27:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:27:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:27:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:27:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:27:21,820 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:27:21,823 INFO L298 CfgBuilder]: Removed 198 assume(true) statements. [2020-11-30 01:27:21,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:21 BoogieIcfgContainer [2020-11-30 01:27:21,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:27:21,828 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 01:27:21,829 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 01:27:21,835 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 01:27:21,836 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:27:21,836 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 01:27:19" (1/3) ... [2020-11-30 01:27:21,838 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9653935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:27:21, skipping insertion in model container [2020-11-30 01:27:21,838 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:27:21,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:27:19" (2/3) ... [2020-11-30 01:27:21,840 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9653935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 01:27:21, skipping insertion in model container [2020-11-30 01:27:21,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 01:27:21,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:21" (3/3) ... [2020-11-30 01:27:21,843 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2020-11-30 01:27:21,911 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 01:27:21,912 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 01:27:21,912 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 01:27:21,912 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:27:21,912 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:27:21,912 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 01:27:21,912 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:27:21,913 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 01:27:21,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-30 01:27:21,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-30 01:27:21,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:27:21,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:27:21,994 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:27:21,995 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:21,995 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 01:27:21,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states. [2020-11-30 01:27:22,005 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2020-11-30 01:27:22,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:27:22,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:27:22,007 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:27:22,007 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:22,013 INFO L794 eck$LassoCheckResult]: Stem: 111#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 6#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~10, main_~tmp~7;havoc main_~retValue_acc~10;havoc main_~tmp~7; 130#L492true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 135#L500true main_#t~ret46 := valid_product_#res;main_~tmp~7 := main_#t~ret46;havoc main_#t~ret46; 60#L587true assume 0 != main_~tmp~7; 108#L564true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 127#L346-1true [2020-11-30 01:27:22,014 INFO L796 eck$LassoCheckResult]: Loop: 127#L346-1true assume !false; 136#L57true assume test_~splverifierCounter~0 < 4; 78#L58true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 117#L66true assume !(0 != test_~tmp~0); 114#L66-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 12#L76true assume !(0 != test_~tmp___0~0); 10#L76-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 71#L86true assume 0 != test_~tmp___2~0; 18#L92-2true assume !(0 != ~pumpRunning~0); 28#L128true assume !(0 != ~systemActive~0); 86#L135true havoc __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 21#L439true __utac_acc__Specification4_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret33;havoc __utac_acc__Specification4_spec__1_#t~ret33; 137#L346true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 127#L346-1true [2020-11-30 01:27:22,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:22,022 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-30 01:27:22,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:22,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579290353] [2020-11-30 01:27:22,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:22,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:22,586 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:22,640 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:22,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:22,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1679097916, now seen corresponding path program 1 times [2020-11-30 01:27:22,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:22,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901924838] [2020-11-30 01:27:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:22,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:22,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:22,667 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:22,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:22,670 INFO L82 PathProgramCache]: Analyzing trace with hash 35181022, now seen corresponding path program 1 times [2020-11-30 01:27:22,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:22,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302659911] [2020-11-30 01:27:22,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:22,874 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 01:27:22,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302659911] [2020-11-30 01:27:22,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:22,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:27:22,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156824601] [2020-11-30 01:27:23,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:23,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:27:23,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:27:23,067 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 6 states. [2020-11-30 01:27:23,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:23,465 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2020-11-30 01:27:23,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:27:23,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 187 transitions. [2020-11-30 01:27:23,479 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-30 01:27:23,494 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2020-11-30 01:27:23,500 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2020-11-30 01:27:23,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2020-11-30 01:27:23,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2020-11-30 01:27:23,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:27:23,507 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-30 01:27:23,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2020-11-30 01:27:23,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-30 01:27:23,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-30 01:27:23,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2020-11-30 01:27:23,570 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-30 01:27:23,571 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2020-11-30 01:27:23,571 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 01:27:23,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2020-11-30 01:27:23,579 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2020-11-30 01:27:23,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:27:23,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:27:23,581 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:27:23,582 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:27:23,582 INFO L794 eck$LassoCheckResult]: Stem: 403#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 295#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~10, main_~tmp~7;havoc main_~retValue_acc~10;havoc main_~tmp~7; 296#L492 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 409#L500 main_#t~ret46 := valid_product_#res;main_~tmp~7 := main_#t~ret46;havoc main_#t~ret46; 370#L587 assume 0 != main_~tmp~7; 371#L564 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 381#L346-1 [2020-11-30 01:27:23,583 INFO L796 eck$LassoCheckResult]: Loop: 381#L346-1 assume !false; 408#L57 assume test_~splverifierCounter~0 < 4; 386#L58 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 387#L66 assume !(0 != test_~tmp~0); 406#L66-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 304#L76 assume !(0 != test_~tmp___0~0); 299#L76-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 300#L86 assume 0 != test_~tmp___2~0; 317#L92-2 assume !(0 != ~pumpRunning~0); 318#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 285#L186 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 286#L160-1 assume !(0 == ~pumpRunning~0); 311#L135 havoc __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 323#L439 __utac_acc__Specification4_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret33;havoc __utac_acc__Specification4_spec__1_#t~ret33; 324#L346 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 381#L346-1 [2020-11-30 01:27:23,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:23,585 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-30 01:27:23,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:23,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984907881] [2020-11-30 01:27:23,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:23,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:23,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:23,834 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:23,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:23,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1986081043, now seen corresponding path program 1 times [2020-11-30 01:27:23,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:23,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147981729] [2020-11-30 01:27:23,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:27:23,868 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 01:27:23,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147981729] [2020-11-30 01:27:23,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:27:23,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:27:23,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932068766] [2020-11-30 01:27:23,870 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 01:27:23,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:27:23,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:27:23,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:27:23,871 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 Second operand 3 states. [2020-11-30 01:27:24,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:27:24,026 INFO L93 Difference]: Finished difference Result 166 states and 228 transitions. [2020-11-30 01:27:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:27:24,028 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 228 transitions. [2020-11-30 01:27:24,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-30 01:27:24,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 166 states and 228 transitions. [2020-11-30 01:27:24,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2020-11-30 01:27:24,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2020-11-30 01:27:24,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 166 states and 228 transitions. [2020-11-30 01:27:24,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 01:27:24,039 INFO L691 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2020-11-30 01:27:24,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states and 228 transitions. [2020-11-30 01:27:24,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-11-30 01:27:24,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-11-30 01:27:24,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2020-11-30 01:27:24,051 INFO L714 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2020-11-30 01:27:24,051 INFO L594 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2020-11-30 01:27:24,051 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 01:27:24,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 228 transitions. [2020-11-30 01:27:24,053 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2020-11-30 01:27:24,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 01:27:24,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 01:27:24,055 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:27:24,055 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] [2020-11-30 01:27:24,055 INFO L794 eck$LassoCheckResult]: Stem: 704#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 591#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~10, main_~tmp~7;havoc main_~retValue_acc~10;havoc main_~tmp~7; 592#L492 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 713#L500 main_#t~ret46 := valid_product_#res;main_~tmp~7 := main_#t~ret46;havoc main_#t~ret46; 670#L587 assume 0 != main_~tmp~7; 671#L564 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 680#L346-1 [2020-11-30 01:27:24,056 INFO L796 eck$LassoCheckResult]: Loop: 680#L346-1 assume !false; 712#L57 assume test_~splverifierCounter~0 < 4; 714#L58 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 747#L66 assume !(0 != test_~tmp~0); 745#L66-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 744#L76 assume !(0 != test_~tmp___0~0); 742#L76-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 682#L86 assume 0 != test_~tmp___2~0; 611#L92-2 assume !(0 != ~pumpRunning~0); 612#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 582#L186 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 583#L160-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 626#L447-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 627#L452-1 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 662#L306-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 663#L306-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 645#L312-1 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 605#L164-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 606#L135 havoc __utac_acc__Specification4_spec__1_#t~ret33, __utac_acc__Specification4_spec__1_#t~ret34, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 616#L439 __utac_acc__Specification4_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret33;havoc __utac_acc__Specification4_spec__1_#t~ret33; 617#L346 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 680#L346-1 [2020-11-30 01:27:24,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:24,057 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-11-30 01:27:24,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:24,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493656378] [2020-11-30 01:27:24,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:24,109 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:24,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:24,199 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:24,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:24,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1392929209, now seen corresponding path program 1 times [2020-11-30 01:27:24,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:24,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817060403] [2020-11-30 01:27:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:24,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:24,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:24,241 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:24,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:27:24,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1849000403, now seen corresponding path program 1 times [2020-11-30 01:27:24,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:27:24,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988406438] [2020-11-30 01:27:24,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:27:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:24,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:27:24,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:27:24,387 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:27:24,578 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-30 01:27:24,683 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-11-30 01:29:05,813 WARN L193 SmtUtils]: Spent 1.69 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-30 01:30:10,075 WARN L193 SmtUtils]: Spent 1.07 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-30 01:30:10,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 01:30:10 BoogieIcfgContainer [2020-11-30 01:30:10,415 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 01:30:10,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:30:10,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:30:10,417 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:30:10,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:27:21" (3/4) ... [2020-11-30 01:30:10,420 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 01:30:10,544 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_50ba0b33-7f4c-41d6-b2e9-ef31ccc6086e/bin/uautomizer/witness.graphml [2020-11-30 01:30:10,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:30:10,546 INFO L168 Benchmark]: Toolchain (without parser) took 171425.99 ms. Allocated memory was 100.7 MB in the beginning and 182.5 MB in the end (delta: 81.8 MB). Free memory was 74.8 MB in the beginning and 146.4 MB in the end (delta: -71.6 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,547 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 100.7 MB. Free memory is still 61.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:30:10,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.28 ms. Allocated memory is still 100.7 MB. Free memory was 74.6 MB in the beginning and 67.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,548 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.67 ms. Allocated memory is still 100.7 MB. Free memory was 67.0 MB in the beginning and 62.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,549 INFO L168 Benchmark]: Boogie Preprocessor took 130.97 ms. Allocated memory is still 100.7 MB. Free memory was 62.9 MB in the beginning and 60.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,550 INFO L168 Benchmark]: RCFGBuilder took 1589.19 ms. Allocated memory was 100.7 MB in the beginning and 140.5 MB in the end (delta: 39.8 MB). Free memory was 60.1 MB in the beginning and 72.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,551 INFO L168 Benchmark]: BuchiAutomizer took 168587.23 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 72.6 MB in the beginning and 149.4 MB in the end (delta: -76.8 MB). Peak memory consumption was 74.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,551 INFO L168 Benchmark]: Witness Printer took 128.67 ms. Allocated memory is still 182.5 MB. Free memory was 149.4 MB in the beginning and 146.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:30:10,556 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 100.7 MB. Free memory is still 61.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 841.28 ms. Allocated memory is still 100.7 MB. Free memory was 74.6 MB in the beginning and 67.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 138.67 ms. Allocated memory is still 100.7 MB. Free memory was 67.0 MB in the beginning and 62.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.97 ms. Allocated memory is still 100.7 MB. Free memory was 62.9 MB in the beginning and 60.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1589.19 ms. Allocated memory was 100.7 MB in the beginning and 140.5 MB in the end (delta: 39.8 MB). Free memory was 60.1 MB in the beginning and 72.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 168587.23 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 72.6 MB in the beginning and 149.4 MB in the end (delta: -76.8 MB). Peak memory consumption was 74.1 MB. Max. memory is 16.1 GB. * Witness Printer took 128.67 ms. Allocated memory is still 182.5 MB. Free memory was 149.4 MB in the beginning and 146.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 166 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 168.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 167.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 166 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 347 SDtfs, 681 SDslu, 68 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 56]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5727} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2be9993d=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ddfa3e7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a21b675=0, NULL=5727, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f728a24=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ddc407c=0, NULL=0, NULL=5743, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@225ebe6f=0, NULL=0, retValue_acc=0, NULL=5728, NULL=0, tmp___1=0, NULL=0, NULL=5756, NULL=5742, cleanupTimeShifts=4, tmp=0, NULL=5745, waterLevel=1, NULL=0, NULL=0, NULL=5750, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=5751, NULL=0, NULL=0, tmp=1, \result=1, NULL=0, NULL=0, tmp=1, NULL=0, NULL=5732, NULL=0, tmp=1, NULL=0, NULL=0, NULL=5749, NULL=5748, retValue_acc=1, NULL=5735, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f07c2a1=0, head=0, NULL=0, NULL=0, NULL=5740, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@628e6898=0, NULL=0, NULL=0, NULL=5754, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fac2a20=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b7f7ca3=0, tmp___0=0, NULL=0, NULL=0, NULL=5736, NULL=0, NULL=0, NULL=5757, tmp=0, tmp___0=0, NULL=0, systemActive=1, NULL=5744, \result=1, \result=0, retValue_acc=0, NULL=5755, NULL=5753, \result=0, NULL=5739, NULL=0, NULL=0, NULL=5734, retValue_acc=1, NULL=5747, NULL=5729, NULL=5746, tmp___2=61, splverifierCounter=0, NULL=0, NULL=5741, NULL=5737, NULL=0, NULL=0, NULL=5752, NULL=0, NULL=5738, NULL=5733} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L364] int waterLevel = 1; [L365] int methaneLevelCritical = 0; [L505] int cleanupTimeShifts = 4; [L770] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L578] int retValue_acc ; [L579] int tmp ; [L496] int retValue_acc ; [L499] retValue_acc = 1 [L500] return (retValue_acc); [L585] tmp = valid_product() [L587] COND TRUE \read(tmp) [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 Loop: [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L183] int tmp ; [L186] COND FALSE !(\read(pumpRunning)) [L157] int tmp ; [L160] COND TRUE ! pumpRunning [L298] int retValue_acc ; [L299] int tmp ; [L300] int tmp___0 ; [L444] int retValue_acc ; [L447] COND TRUE waterLevel < 2 [L448] retValue_acc = 1 [L449] return (retValue_acc); [L304] tmp = isHighWaterSensorDry() [L306] COND TRUE \read(tmp) [L307] tmp___0 = 0 [L311] retValue_acc = tmp___0 [L312] return (retValue_acc); [L162] tmp = isHighWaterLevel() [L164] COND FALSE !(\read(tmp)) [L339] int tmp ; [L340] int tmp___0 ; [L435] int retValue_acc ; [L438] retValue_acc = waterLevel [L439] return (retValue_acc); [L344] tmp = getWaterLevel() [L346] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...