./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX --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 315d60eb588d6482efeebc0b747aa91d22e611dd88f8ad5f52fb821083a93df1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:42:32,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:42:32,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:42:33,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:42:33,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:42:33,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:42:33,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:42:33,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:42:33,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:42:33,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:42:33,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:42:33,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:42:33,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:42:33,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:42:33,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:42:33,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:42:33,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:42:33,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:42:33,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:42:33,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:42:33,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:42:33,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:42:33,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:42:33,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:42:33,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:42:33,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:42:33,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:42:33,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:42:33,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:42:33,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:42:33,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:42:33,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:42:33,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:42:33,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:42:33,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:42:33,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:42:33,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:42:33,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:42:33,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:42:33,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:42:33,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:42:33,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 10:42:33,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:42:33,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:42:33,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:42:33,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:42:33,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:42:33,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:42:33,123 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:42:33,124 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 10:42:33,124 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 10:42:33,125 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 10:42:33,128 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 10:42:33,128 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 10:42:33,129 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 10:42:33,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:42:33,130 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:42:33,130 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:42:33,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:42:33,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:42:33,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:42:33,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 10:42:33,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 10:42:33,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 10:42:33,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:42:33,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:42:33,136 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 10:42:33,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:42:33,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 10:42:33,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:42:33,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:42:33,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:42:33,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:42:33,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:42:33,142 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 10:42:33,143 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_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 315d60eb588d6482efeebc0b747aa91d22e611dd88f8ad5f52fb821083a93df1 [2021-11-09 10:42:33,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:42:33,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:42:33,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:42:33,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:42:33,505 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:42:33,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c [2021-11-09 10:42:33,609 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/data/7463e23df/3da90fd9ac2c4c5e88abc38d88106b88/FLAG19ee270f7 [2021-11-09 10:42:34,206 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:42:34,207 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c [2021-11-09 10:42:34,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/data/7463e23df/3da90fd9ac2c4c5e88abc38d88106b88/FLAG19ee270f7 [2021-11-09 10:42:34,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/data/7463e23df/3da90fd9ac2c4c5e88abc38d88106b88 [2021-11-09 10:42:34,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:42:34,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:42:34,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:42:34,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:42:34,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:42:34,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:42:34" (1/1) ... [2021-11-09 10:42:34,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@280cde01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:34, skipping insertion in model container [2021-11-09 10:42:34,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:42:34" (1/1) ... [2021-11-09 10:42:34,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:42:34,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:42:35,158 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_fe5d5c31-1d13-42b9-a5c8-1306083d0038/sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c[17389,17402] [2021-11-09 10:42:35,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:42:35,191 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:42:35,301 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_fe5d5c31-1d13-42b9-a5c8-1306083d0038/sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c[17389,17402] [2021-11-09 10:42:35,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:42:35,334 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:42:35,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35 WrapperNode [2021-11-09 10:42:35,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:42:35,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:42:35,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:42:35,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:42:35,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:42:35,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:42:35,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:42:35,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:42:35,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:42:35,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:42:35,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:42:35,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:42:35,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (1/1) ... [2021-11-09 10:42:35,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:42:35,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:42:35,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:42:35,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 10:42:35,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:42:35,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:42:35,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:42:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:42:36,609 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:42:36,610 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-11-09 10:42:36,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:42:36 BoogieIcfgContainer [2021-11-09 10:42:36,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:42:36,614 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 10:42:36,614 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 10:42:36,618 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 10:42:36,619 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:42:36,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 10:42:34" (1/3) ... [2021-11-09 10:42:36,622 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d5ce623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:42:36, skipping insertion in model container [2021-11-09 10:42:36,623 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:42:36,623 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:42:35" (2/3) ... [2021-11-09 10:42:36,623 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d5ce623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:42:36, skipping insertion in model container [2021-11-09 10:42:36,624 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:42:36,624 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:42:36" (3/3) ... [2021-11-09 10:42:36,626 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product08.cil.c [2021-11-09 10:42:36,700 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 10:42:36,701 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 10:42:36,701 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 10:42:36,701 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 10:42:36,701 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 10:42:36,702 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 10:42:36,702 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 10:42:36,702 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 10:42:36,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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) [2021-11-09 10:42:36,772 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-11-09 10:42:36,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:42:36,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:42:36,783 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 10:42:36,783 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:42:36,783 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 10:42:36,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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) [2021-11-09 10:42:36,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-11-09 10:42:36,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:42:36,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:42:36,803 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 10:42:36,803 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:42:36,817 INFO L791 eck$LassoCheckResult]: Stem: 51#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.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; 39#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 16#L161true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 58#L169true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 5#L259true assume 0 != main_~tmp~0; 44#L235true havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 7#L649-1true [2021-11-09 10:42:36,818 INFO L793 eck$LassoCheckResult]: Loop: 7#L649-1true assume !false; 34#L838true assume test_~splverifierCounter~0 < 4; 32#L839true test_~tmp~6 := test_#t~nondet74;havoc test_#t~nondet74; 37#L847true assume !(0 != test_~tmp~6); 36#L847-1true test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 33#L857true assume !(0 != test_~tmp___0~1); 63#L857-1true test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 42#L867true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 50#L875-1true assume !(0 != ~pumpRunning~0); 35#L678true assume !(0 != ~systemActive~0); 20#L685true 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~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 43#L131true __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; 59#L649true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 7#L649-1true [2021-11-09 10:42:36,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:36,826 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-09 10:42:36,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:36,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907272460] [2021-11-09 10:42:36,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:36,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:37,166 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:42:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:37,528 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:42:37,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:37,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1672356212, now seen corresponding path program 1 times [2021-11-09 10:42:37,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:37,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751037482] [2021-11-09 10:42:37,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:37,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:42:37,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:42:37,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:42:37,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751037482] [2021-11-09 10:42:37,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751037482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:42:37,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:42:37,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:42:37,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520291195] [2021-11-09 10:42:37,656 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-09 10:42:37,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:42:37,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:42:37,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:42:37,686 INFO L87 Difference]: Start difference. First operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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) [2021-11-09 10:42:37,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:42:37,778 INFO L93 Difference]: Finished difference Result 130 states and 180 transitions. [2021-11-09 10:42:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:42:37,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 180 transitions. [2021-11-09 10:42:37,793 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 82 [2021-11-09 10:42:37,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 116 states and 165 transitions. [2021-11-09 10:42:37,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2021-11-09 10:42:37,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2021-11-09 10:42:37,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 165 transitions. [2021-11-09 10:42:37,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:42:37,811 INFO L681 BuchiCegarLoop]: Abstraction has 116 states and 165 transitions. [2021-11-09 10:42:37,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 165 transitions. [2021-11-09 10:42:37,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2021-11-09 10:42:37,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.4210526315789473) internal successors, (162), 113 states have internal predecessors, (162), 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) [2021-11-09 10:42:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2021-11-09 10:42:37,879 INFO L704 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2021-11-09 10:42:37,879 INFO L587 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2021-11-09 10:42:37,880 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 10:42:37,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2021-11-09 10:42:37,887 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2021-11-09 10:42:37,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:42:37,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:42:37,890 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 10:42:37,890 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:42:37,890 INFO L791 eck$LassoCheckResult]: Stem: 267#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.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; 256#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 229#L161 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 230#L169 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 210#L259 assume 0 != main_~tmp~0; 211#L235 havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 262#L649-1 [2021-11-09 10:42:37,891 INFO L793 eck$LassoCheckResult]: Loop: 262#L649-1 assume !false; 279#L838 assume test_~splverifierCounter~0 < 4; 280#L839 test_~tmp~6 := test_#t~nondet74;havoc test_#t~nondet74; 299#L847 assume !(0 != test_~tmp~6); 297#L847-1 test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 296#L857 assume !(0 != test_~tmp___0~1); 294#L857-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 293#L867 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 260#L875-1 assume !(0 != ~pumpRunning~0); 289#L678 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 287#L710 assume !(0 != ~pumpRunning~0); 285#L685 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~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 284#L131 __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; 282#L649 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 262#L649-1 [2021-11-09 10:42:37,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-09 10:42:37,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:37,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858046660] [2021-11-09 10:42:37,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:37,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:37,968 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:42:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:38,066 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:42:38,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:38,067 INFO L85 PathProgramCache]: Analyzing trace with hash -323963301, now seen corresponding path program 1 times [2021-11-09 10:42:38,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:38,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819684842] [2021-11-09 10:42:38,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:38,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:38,075 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:42:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:38,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:42:38,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:42:38,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1279076225, now seen corresponding path program 1 times [2021-11-09 10:42:38,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:42:38,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800796417] [2021-11-09 10:42:38,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:42:38,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:42:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:38,161 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:42:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:42:38,317 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:43:53,952 WARN L207 SmtUtils]: Spent 1.26 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-09 10:45:15,297 WARN L207 SmtUtils]: Spent 38.99 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-09 10:45:15,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 10:45:15 BoogieIcfgContainer [2021-11-09 10:45:15,407 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 10:45:15,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:45:15,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:45:15,408 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:45:15,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:42:36" (3/4) ... [2021-11-09 10:45:15,411 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 10:45:15,475 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 10:45:15,475 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:45:15,476 INFO L168 Benchmark]: Toolchain (without parser) took 160943.32 ms. Allocated memory was 90.2 MB in the beginning and 157.3 MB in the end (delta: 67.1 MB). Free memory was 54.5 MB in the beginning and 41.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 79.8 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:15,477 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory was 60.2 MB in the beginning and 60.1 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:45:15,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.70 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 54.3 MB in the beginning and 85.2 MB in the end (delta: -30.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:15,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.32 ms. Allocated memory is still 117.4 MB. Free memory was 85.2 MB in the beginning and 82.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:15,480 INFO L168 Benchmark]: Boogie Preprocessor took 91.83 ms. Allocated memory is still 117.4 MB. Free memory was 82.4 MB in the beginning and 80.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:15,481 INFO L168 Benchmark]: RCFGBuilder took 1078.19 ms. Allocated memory is still 117.4 MB. Free memory was 80.3 MB in the beginning and 73.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:15,482 INFO L168 Benchmark]: BuchiAutomizer took 158793.25 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 73.7 MB in the beginning and 43.7 MB in the end (delta: 30.0 MB). Peak memory consumption was 85.7 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:15,483 INFO L168 Benchmark]: Witness Printer took 67.57 ms. Allocated memory is still 157.3 MB. Free memory was 43.7 MB in the beginning and 41.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:45:15,489 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 90.2 MB. Free memory was 60.2 MB in the beginning and 60.1 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 779.70 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 54.3 MB in the beginning and 85.2 MB in the end (delta: -30.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.32 ms. Allocated memory is still 117.4 MB. Free memory was 85.2 MB in the beginning and 82.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.83 ms. Allocated memory is still 117.4 MB. Free memory was 82.4 MB in the beginning and 80.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1078.19 ms. Allocated memory is still 117.4 MB. Free memory was 80.3 MB in the beginning and 73.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 158793.25 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 73.7 MB in the beginning and 43.7 MB in the end (delta: 30.0 MB). Peak memory consumption was 85.7 MB. Max. memory is 16.1 GB. * Witness Printer took 67.57 ms. Allocated memory is still 157.3 MB. Free memory was 43.7 MB in the beginning and 41.6 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 114 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 158.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 158.3s. 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 114 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 88 SDslu, 80 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: 837]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=42389, NULL=0, NULL=0, NULL=1, NULL=32522, NULL=0, retValue_acc=0, NULL=42368, NULL=0, NULL=0, NULL=42370, NULL=42380, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ef0f750=0, methaneLevelCritical=0, NULL=42387, NULL=42382, NULL=0, NULL=0, NULL=42377, tmp=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=42379, cleanupTimeShifts=4, NULL=42376, NULL=42374, NULL=42383, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@670338e2=0, NULL=0, systemActive=1, waterLevel=1, NULL=42367, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=42384, NULL=0, NULL=42366, NULL=0, NULL=42378, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=42381, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f533dc8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@734868e9=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68a134a2=78, NULL=42373, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54aa2736=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@205a388e=0, retValue_acc=1, NULL=42365, NULL=42363, NULL=0, tmp=1, NULL=0, NULL=42390, tmp___2=78, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34ea2afe=0, NULL=42369, NULL=42386, NULL=42371, head=0, tmp=0, NULL=0, NULL=0, NULL=42385, NULL=42375, NULL=0, NULL=42364, NULL=42372} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L174] int cleanupTimeShifts = 4; [L442] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L671] int pumpRunning = 0; [L672] int systemActive = 1; [L250] int retValue_acc ; [L251] int tmp ; [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); [L257] tmp = valid_product() [L259] COND TRUE \read(tmp) [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 Loop: [L837] COND TRUE 1 [L839] COND TRUE splverifierCounter < 4 [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___2) [L822] systemActive = 1 [L678] COND FALSE !(\read(pumpRunning)) [L685] COND TRUE \read(systemActive) [L707] int tmp ; [L710] COND FALSE !(\read(pumpRunning)) [L642] int tmp ; [L643] int tmp___0 ; [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L647] tmp = getWaterLevel() [L649] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 10:45:15,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5d5c31-1d13-42b9-a5c8-1306083d0038/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)