./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg --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 5bb0c67d0f3b897df6aba0c402ea453b42e61f1d6e102d991db16c73430a771e ............................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-b2eff8b [2021-10-28 08:35:36,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:35:36,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:35:37,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:35:37,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:35:37,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:35:37,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:35:37,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:35:37,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:35:37,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:35:37,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:35:37,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:35:37,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:35:37,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:35:37,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:35:37,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:35:37,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:35:37,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:35:37,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:35:37,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:35:37,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:35:37,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:35:37,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:35:37,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:35:37,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:35:37,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:35:37,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:35:37,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:35:37,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:35:37,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:35:37,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:35:37,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:35:37,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:35:37,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:35:37,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:35:37,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:35:37,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:35:37,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:35:37,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:35:37,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:35:37,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:35:37,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:35:37,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:35:37,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:35:37,197 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:35:37,197 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:35:37,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:35:37,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:35:37,199 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:35:37,200 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:35:37,200 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:35:37,200 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:35:37,200 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:35:37,201 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:35:37,201 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:35:37,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:35:37,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:35:37,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:35:37,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:35:37,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:35:37,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:35:37,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:35:37,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:35:37,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:35:37,204 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:35:37,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:35:37,204 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:35:37,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:35:37,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:35:37,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:35:37,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:35:37,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:35:37,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:35:37,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:35:37,207 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:35:37,208 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_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb0c67d0f3b897df6aba0c402ea453b42e61f1d6e102d991db16c73430a771e [2021-10-28 08:35:37,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:35:37,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:35:37,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:35:37,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:35:37,620 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:35:37,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2021-10-28 08:35:37,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/data/fbbd0ad25/171c217af6384c9c9d3bbe799b53a0ae/FLAG6db858173 [2021-10-28 08:35:38,488 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:35:38,489 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c [2021-10-28 08:35:38,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/data/fbbd0ad25/171c217af6384c9c9d3bbe799b53a0ae/FLAG6db858173 [2021-10-28 08:35:38,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/data/fbbd0ad25/171c217af6384c9c9d3bbe799b53a0ae [2021-10-28 08:35:38,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:35:38,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:35:38,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:38,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:35:38,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:35:38,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:38" (1/1) ... [2021-10-28 08:35:38,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c6b3f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:38, skipping insertion in model container [2021-10-28 08:35:38,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:38" (1/1) ... [2021-10-28 08:35:38,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:35:38,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:35:39,131 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c[14361,14374] [2021-10-28 08:35:39,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:39,192 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:35:39,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/sv-benchmarks/c/product-lines/minepump_spec4_product20.cil.c[14361,14374] [2021-10-28 08:35:39,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:39,332 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:35:39,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39 WrapperNode [2021-10-28 08:35:39,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:39,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:35:39,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:35:39,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:35:39,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:35:39,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:35:39,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:35:39,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:35:39,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:35:39,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:35:39,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:35:39,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:35:39,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (1/1) ... [2021-10-28 08:35:39,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:35:39,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:39,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:35:39,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:35:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:35:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:35:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:35:39,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:35:40,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:35:40,422 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-28 08:35:40,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:40 BoogieIcfgContainer [2021-10-28 08:35:40,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:35:40,428 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:35:40,429 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:35:40,432 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:35:40,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:35:40,434 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:35:38" (1/3) ... [2021-10-28 08:35:40,436 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c3615c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:35:40, skipping insertion in model container [2021-10-28 08:35:40,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:35:40,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:39" (2/3) ... [2021-10-28 08:35:40,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c3615c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:35:40, skipping insertion in model container [2021-10-28 08:35:40,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:35:40,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:40" (3/3) ... [2021-10-28 08:35:40,440 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product20.cil.c [2021-10-28 08:35:40,509 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:35:40,509 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:35:40,510 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:35:40,510 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:35:40,510 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:35:40,510 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:35:40,510 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:35:40,510 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:35:40,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:40,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 08:35:40,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:35:40,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:35:40,567 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:35:40,567 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:40,567 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:35:40,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:40,573 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 08:35:40,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:35:40,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:35:40,575 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:35:40,575 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:40,579 INFO L791 eck$LassoCheckResult]: Stem: 56#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 43#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 68#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 27#L83true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 70#L269true assume 0 != main_~tmp~0; 33#L245true havoc test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 38#L667-1true [2021-10-28 08:35:40,580 INFO L793 eck$LassoCheckResult]: Loop: 38#L667-1true assume !false; 11#L875true assume test_~splverifierCounter~0 < 4; 29#L876true test_~tmp~7 := test_#t~nondet75;havoc test_#t~nondet75; 28#L884true assume !(0 != test_~tmp~7); 4#L884-1true test_~tmp___0~2 := test_#t~nondet76;havoc test_#t~nondet76; 37#L894true assume !(0 != test_~tmp___0~2); 64#L894-1true test_~tmp___2~0 := test_#t~nondet77;havoc test_#t~nondet77; 26#L904true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 15#L912-1true assume !(0 != ~pumpRunning~0); 48#L696true assume !(0 != ~systemActive~0); 10#L703true havoc __utac_acc__Specification4_spec__1_#t~ret54, __utac_acc__Specification4_spec__1_#t~ret55, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 75#L170true __utac_acc__Specification4_spec__1_#t~ret54 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret54;havoc __utac_acc__Specification4_spec__1_#t~ret54; 42#L667true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 38#L667-1true [2021-10-28 08:35:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 08:35:40,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:40,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157591185] [2021-10-28 08:35:40,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:40,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:40,964 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:41,186 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:41,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:41,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1672140724, now seen corresponding path program 1 times [2021-10-28 08:35:41,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:41,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478985093] [2021-10-28 08:35:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:41,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:41,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:41,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478985093] [2021-10-28 08:35:41,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478985093] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:41,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:41,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:35:41,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651638669] [2021-10-28 08:35:41,313 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:35:41,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:41,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:35:41,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:35:41,339 INFO L87 Difference]: Start difference. First operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:41,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:35:41,417 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2021-10-28 08:35:41,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:35:41,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2021-10-28 08:35:41,435 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2021-10-28 08:35:41,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2021-10-28 08:35:41,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2021-10-28 08:35:41,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2021-10-28 08:35:41,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2021-10-28 08:35:41,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:35:41,453 INFO L681 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2021-10-28 08:35:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2021-10-28 08:35:41,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2021-10-28 08:35:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4285714285714286) internal successors, (180), 125 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:35:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2021-10-28 08:35:41,527 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2021-10-28 08:35:41,527 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2021-10-28 08:35:41,527 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:35:41,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2021-10-28 08:35:41,531 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2021-10-28 08:35:41,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:35:41,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:35:41,538 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:35:41,538 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:41,538 INFO L791 eck$LassoCheckResult]: Stem: 299#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 289#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 290#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 271#L83 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 272#L269 assume 0 != main_~tmp~0; 279#L245 havoc test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 280#L667-1 [2021-10-28 08:35:41,540 INFO L793 eck$LassoCheckResult]: Loop: 280#L667-1 assume !false; 309#L875 assume test_~splverifierCounter~0 < 4; 275#L876 test_~tmp~7 := test_#t~nondet75;havoc test_#t~nondet75; 276#L884 assume !(0 != test_~tmp~7); 322#L884-1 test_~tmp___0~2 := test_#t~nondet76;havoc test_#t~nondet76; 321#L894 assume !(0 != test_~tmp___0~2); 302#L894-1 test_~tmp___2~0 := test_#t~nondet77;havoc test_#t~nondet77; 268#L904 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 269#L912-1 assume !(0 != ~pumpRunning~0); 315#L696 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 314#L728 assume !(0 != ~pumpRunning~0); 312#L703 havoc __utac_acc__Specification4_spec__1_#t~ret54, __utac_acc__Specification4_spec__1_#t~ret55, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 311#L170 __utac_acc__Specification4_spec__1_#t~ret54 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret54;havoc __utac_acc__Specification4_spec__1_#t~ret54; 310#L667 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 280#L667-1 [2021-10-28 08:35:41,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:41,542 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 08:35:41,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:41,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888824139] [2021-10-28 08:35:41,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:41,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:41,635 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:41,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:41,774 INFO L85 PathProgramCache]: Analyzing trace with hash -323747813, now seen corresponding path program 1 times [2021-10-28 08:35:41,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:41,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918898021] [2021-10-28 08:35:41,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:41,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:41,786 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:41,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:35:41,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:41,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1279291713, now seen corresponding path program 1 times [2021-10-28 08:35:41,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:41,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117522308] [2021-10-28 08:35:41,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:41,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:41,892 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:35:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:35:42,015 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:36:50,492 WARN L207 SmtUtils]: Spent 1.14 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 08:38:03,033 WARN L207 SmtUtils]: Spent 34.67 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 08:38:03,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:38:03 BoogieIcfgContainer [2021-10-28 08:38:03,207 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:38:03,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:38:03,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:38:03,209 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:38:03,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:40" (3/4) ... [2021-10-28 08:38:03,212 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:38:03,284 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:38:03,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:38:03,299 INFO L168 Benchmark]: Toolchain (without parser) took 144583.79 ms. Allocated memory was 127.9 MB in the beginning and 163.6 MB in the end (delta: 35.7 MB). Free memory was 91.8 MB in the beginning and 48.8 MB in the end (delta: 43.0 MB). Peak memory consumption was 78.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:03,300 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 57.7 MB in the beginning and 57.6 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:38:03,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.06 ms. Allocated memory is still 127.9 MB. Free memory was 91.3 MB in the beginning and 96.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:03,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.78 ms. Allocated memory is still 127.9 MB. Free memory was 96.6 MB in the beginning and 93.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:03,305 INFO L168 Benchmark]: Boogie Preprocessor took 77.62 ms. Allocated memory is still 127.9 MB. Free memory was 93.4 MB in the beginning and 91.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:03,306 INFO L168 Benchmark]: RCFGBuilder took 923.07 ms. Allocated memory is still 127.9 MB. Free memory was 91.3 MB in the beginning and 53.6 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:03,307 INFO L168 Benchmark]: BuchiAutomizer took 142779.15 ms. Allocated memory was 127.9 MB in the beginning and 163.6 MB in the end (delta: 35.7 MB). Free memory was 53.6 MB in the beginning and 50.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:03,308 INFO L168 Benchmark]: Witness Printer took 88.87 ms. Allocated memory is still 163.6 MB. Free memory was 50.9 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:03,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 57.7 MB in the beginning and 57.6 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 615.06 ms. Allocated memory is still 127.9 MB. Free memory was 91.3 MB in the beginning and 96.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.78 ms. Allocated memory is still 127.9 MB. Free memory was 96.6 MB in the beginning and 93.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.62 ms. Allocated memory is still 127.9 MB. Free memory was 93.4 MB in the beginning and 91.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 923.07 ms. Allocated memory is still 127.9 MB. Free memory was 91.3 MB in the beginning and 53.6 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 142779.15 ms. Allocated memory was 127.9 MB in the beginning and 163.6 MB in the end (delta: 35.7 MB). Free memory was 53.6 MB in the beginning and 50.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. * Witness Printer took 88.87 ms. Allocated memory is still 163.6 MB. Free memory was 50.9 MB in the beginning and 48.8 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 126 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 142.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 142.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 126 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 101 SDtfs, 97 SDslu, 89 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 874]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28673} State at position 1 is {NULL=28685, NULL=0, NULL=0, NULL=0, NULL=0, NULL=28673, NULL=28690, NULL=0, NULL=28693, NULL=0, retValue_acc=0, NULL=0, NULL=28679, NULL=28675, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57c60828=0, NULL=28687, methaneLevelCritical=0, NULL=28686, NULL=0, NULL=0, NULL=28696, tmp=0, NULL=0, tmp___1=0, NULL=0, NULL=0, tmp___0=0, NULL=28684, cleanupTimeShifts=4, NULL=28697, NULL=28691, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48d5ed16=0, NULL=28694, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69cda115=70, NULL=0, systemActive=1, waterLevel=1, NULL=28682, \result=1, NULL=0, NULL=0, NULL=28700, NULL=0, retValue_acc=1, NULL=28689, \result=1, head=0, pumpRunning=0, tmp=1, NULL=28683, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9710a04=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2643e31=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cdf5ab7=0, NULL=28695, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35b41f86=0, NULL=28692, NULL=28676, NULL=0, tmp=1, NULL=0, NULL=28699, retValue_acc=1, tmp___2=70, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25d0788e=0, NULL=28701, NULL=28698, NULL=28688, NULL=28677, head=0, tmp=0, NULL=0, NULL=0, NULL=28678, NULL=0, NULL=0, NULL=28674, NULL=0, NULL=28680, NULL=28681} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L184] int cleanupTimeShifts = 4; [L452] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L689] int pumpRunning = 0; [L690] int systemActive = 1; [L260] int retValue_acc ; [L261] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L267] tmp = valid_product() [L269] COND TRUE \read(tmp) [L865] int splverifierCounter ; [L866] int tmp ; [L867] int tmp___0 ; [L868] int tmp___1 ; [L869] int tmp___2 ; [L872] splverifierCounter = 0 Loop: [L874] COND TRUE 1 [L876] COND TRUE splverifierCounter < 4 [L882] tmp = __VERIFIER_nondet_int() [L884] COND FALSE !(\read(tmp)) [L892] tmp___0 = __VERIFIER_nondet_int() [L894] COND FALSE !(\read(tmp___0)) [L902] tmp___2 = __VERIFIER_nondet_int() [L904] COND TRUE \read(tmp___2) [L859] systemActive = 1 [L696] COND FALSE !(\read(pumpRunning)) [L703] COND TRUE \read(systemActive) [L725] int tmp ; [L728] COND FALSE !(\read(pumpRunning)) [L660] int tmp ; [L661] int tmp___0 ; [L166] int retValue_acc ; [L169] retValue_acc = waterLevel [L170] return (retValue_acc); [L665] tmp = getWaterLevel() [L667] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:38:03,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95fff2ec-3a8f-48c0-a056-e28233e18e25/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...