./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN --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 a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:01:40,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:01:40,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:01:40,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:01:40,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:01:40,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:01:40,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:01:40,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:01:40,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:01:40,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:01:40,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:01:40,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:01:40,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:01:40,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:01:40,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:01:40,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:01:40,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:01:40,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:01:40,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:01:40,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:01:40,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:01:40,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:01:40,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:01:40,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:01:40,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:01:40,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:01:40,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:01:40,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:01:40,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:01:40,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:01:40,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:01:40,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:01:40,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:01:40,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:01:40,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:01:40,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:01:40,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:01:40,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:01:40,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:01:40,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:01:40,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:01:40,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 11:01:40,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:01:40,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:01:40,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:01:40,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:01:40,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:01:40,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:01:40,231 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:01:40,231 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:01:40,231 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:01:40,232 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:01:40,233 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:01:40,233 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:01:40,233 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:01:40,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:01:40,234 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:01:40,234 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:01:40,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:01:40,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:01:40,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:01:40,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:01:40,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:01:40,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:01:40,236 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:01:40,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:01:40,236 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:01:40,237 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:01:40,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:01:40,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:01:40,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:01:40,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:01:40,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:01:40,240 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:01:40,241 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_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e [2022-11-20 11:01:40,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:01:40,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:01:40,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:01:40,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:01:40,598 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:01:40,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2022-11-20 11:01:43,747 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:01:43,992 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:01:43,993 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2022-11-20 11:01:44,005 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/data/8514def17/74952675c7454b9cba6c3f9556ff7a32/FLAG0fcc82ab5 [2022-11-20 11:01:44,021 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/data/8514def17/74952675c7454b9cba6c3f9556ff7a32 [2022-11-20 11:01:44,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:01:44,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:01:44,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:01:44,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:01:44,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:01:44,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277ade0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44, skipping insertion in model container [2022-11-20 11:01:44,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:01:44,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:01:44,245 WARN L237 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_e1870c23-6278-48d2-8bfe-7fcddbd79b65/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c[1605,1618] [2022-11-20 11:01:44,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:01:44,371 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:01:44,387 WARN L237 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_e1870c23-6278-48d2-8bfe-7fcddbd79b65/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c[1605,1618] [2022-11-20 11:01:44,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:01:44,518 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:01:44,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44 WrapperNode [2022-11-20 11:01:44,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:01:44,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:01:44,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:01:44,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:01:44,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,578 INFO L138 Inliner]: procedures = 54, calls = 97, calls flagged for inlining = 50, calls inlined = 53, statements flattened = 376 [2022-11-20 11:01:44,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:01:44,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:01:44,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:01:44,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:01:44,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,606 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:01:44,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:01:44,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:01:44,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:01:44,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (1/1) ... [2022-11-20 11:01:44,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:01:44,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:01:44,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:01:44,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:01:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:01:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:01:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:01:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:01:44,801 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:01:44,804 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:01:45,184 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:01:45,199 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:01:45,199 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:01:45,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:45 BoogieIcfgContainer [2022-11-20 11:01:45,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:01:45,203 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:01:45,203 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:01:45,207 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:01:45,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:01:45,208 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:01:44" (1/3) ... [2022-11-20 11:01:45,210 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1189b115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:01:45, skipping insertion in model container [2022-11-20 11:01:45,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:01:45,210 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:01:44" (2/3) ... [2022-11-20 11:01:45,210 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1189b115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:01:45, skipping insertion in model container [2022-11-20 11:01:45,211 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:01:45,211 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:45" (3/3) ... [2022-11-20 11:01:45,212 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2022-11-20 11:01:45,292 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:01:45,292 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:01:45,292 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:01:45,292 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:01:45,293 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:01:45,293 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:01:45,293 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:01:45,293 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:01:45,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.382608695652174) internal successors, (159), 115 states have internal predecessors, (159), 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) [2022-11-20 11:01:45,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2022-11-20 11:01:45,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:01:45,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:01:45,336 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:45,336 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:45,336 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:01:45,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.382608695652174) internal successors, (159), 115 states have internal predecessors, (159), 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) [2022-11-20 11:01:45,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2022-11-20 11:01:45,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:01:45,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:01:45,345 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:45,345 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:45,351 INFO L748 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 82#L900true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 76#L893true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 71#L908true main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 96#L864true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 26#L838true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 115#L625-2true [2022-11-20 11:01:45,352 INFO L750 eck$LassoCheckResult]: Loop: 115#L625-2true assume !false; 68#L626true assume test_~splverifierCounter~0#1 < 4; 52#L627true test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 21#L635true assume !(0 != test_~tmp~5#1); 50#L635-2true test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 117#L645true assume !(0 != test_~tmp___0~1#1); 54#L645-2true test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 28#L655true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 69#L608true assume { :end_inline_startSystem } true; 23#L663-2true assume { :begin_inline_timeShift } true; 88#L444true assume !(0 != ~pumpRunning~0); 18#L444-2true assume !(0 != ~systemActive~0); 70#L451-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 61#L728true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 105#L922true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 92#L928-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4#L461true assume { :end_inline_timeShift } true; 115#L625-2true [2022-11-20 11:01:45,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:45,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-20 11:01:45,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:45,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990713438] [2022-11-20 11:01:45,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:45,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:45,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:01:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:45,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:01:45,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:45,606 INFO L85 PathProgramCache]: Analyzing trace with hash 489234323, now seen corresponding path program 1 times [2022-11-20 11:01:45,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:45,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014961568] [2022-11-20 11:01:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:45,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:45,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:45,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:45,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014961568] [2022-11-20 11:01:45,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014961568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:45,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:45,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:01:45,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897463461] [2022-11-20 11:01:45,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:45,706 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 11:01:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:45,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:01:45,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:01:45,749 INFO L87 Difference]: Start difference. First operand has 116 states, 115 states have (on average 1.382608695652174) internal successors, (159), 115 states have internal predecessors, (159), 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 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-20 11:01:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:01:45,824 INFO L93 Difference]: Finished difference Result 217 states and 285 transitions. [2022-11-20 11:01:45,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 285 transitions. [2022-11-20 11:01:45,834 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2022-11-20 11:01:45,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 197 states and 264 transitions. [2022-11-20 11:01:45,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 197 [2022-11-20 11:01:45,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 197 [2022-11-20 11:01:45,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 197 states and 264 transitions. [2022-11-20 11:01:45,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:45,859 INFO L218 hiAutomatonCegarLoop]: Abstraction has 197 states and 264 transitions. [2022-11-20 11:01:45,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states and 264 transitions. [2022-11-20 11:01:45,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2022-11-20 11:01:45,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 194 states have (on average 1.3402061855670102) internal successors, (260), 193 states have internal predecessors, (260), 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) [2022-11-20 11:01:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 260 transitions. [2022-11-20 11:01:45,917 INFO L240 hiAutomatonCegarLoop]: Abstraction has 194 states and 260 transitions. [2022-11-20 11:01:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:01:45,924 INFO L428 stractBuchiCegarLoop]: Abstraction has 194 states and 260 transitions. [2022-11-20 11:01:45,927 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 11:01:45,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 260 transitions. [2022-11-20 11:01:45,931 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 137 [2022-11-20 11:01:45,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:01:45,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:01:45,936 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:45,936 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:45,936 INFO L748 eck$LassoCheckResult]: Stem: 450#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 397#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 398#L900 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 435#L893 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 432#L908 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 433#L864 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 384#L838 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 345#L625-2 [2022-11-20 11:01:45,937 INFO L750 eck$LassoCheckResult]: Loop: 345#L625-2 assume !false; 430#L626 assume test_~splverifierCounter~0#1 < 4; 413#L627 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 378#L635 assume !(0 != test_~tmp~5#1); 379#L635-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 412#L645 assume !(0 != test_~tmp___0~1#1); 347#L645-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 387#L655 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 388#L608 assume { :end_inline_startSystem } true; 365#L663-2 assume { :begin_inline_timeShift } true; 381#L444 assume !(0 != ~pumpRunning~0); 370#L444-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 371#L476 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 400#L468-1 assume { :end_inline_processEnvironment__wrappee__base } true; 393#L476-1 assume { :end_inline_processEnvironment } true; 394#L451-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 424#L728 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 425#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 444#L928-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 344#L461 assume { :end_inline_timeShift } true; 345#L625-2 [2022-11-20 11:01:45,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:45,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-20 11:01:45,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:45,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110484443] [2022-11-20 11:01:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:45,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:45,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:01:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:45,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:01:45,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:45,981 INFO L85 PathProgramCache]: Analyzing trace with hash -563677307, now seen corresponding path program 1 times [2022-11-20 11:01:45,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:45,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329847430] [2022-11-20 11:01:45,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:45,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:46,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:46,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329847430] [2022-11-20 11:01:46,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329847430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:46,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:46,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:01:46,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792291202] [2022-11-20 11:01:46,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:46,022 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 11:01:46,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:46,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:01:46,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:01:46,024 INFO L87 Difference]: Start difference. First operand 194 states and 260 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-20 11:01:46,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:01:46,110 INFO L93 Difference]: Finished difference Result 312 states and 407 transitions. [2022-11-20 11:01:46,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 407 transitions. [2022-11-20 11:01:46,114 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 227 [2022-11-20 11:01:46,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 312 states and 407 transitions. [2022-11-20 11:01:46,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 312 [2022-11-20 11:01:46,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 312 [2022-11-20 11:01:46,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 407 transitions. [2022-11-20 11:01:46,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:46,120 INFO L218 hiAutomatonCegarLoop]: Abstraction has 312 states and 407 transitions. [2022-11-20 11:01:46,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 407 transitions. [2022-11-20 11:01:46,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-11-20 11:01:46,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.3044871794871795) internal successors, (407), 311 states have internal predecessors, (407), 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) [2022-11-20 11:01:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 407 transitions. [2022-11-20 11:01:46,140 INFO L240 hiAutomatonCegarLoop]: Abstraction has 312 states and 407 transitions. [2022-11-20 11:01:46,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:01:46,141 INFO L428 stractBuchiCegarLoop]: Abstraction has 312 states and 407 transitions. [2022-11-20 11:01:46,141 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 11:01:46,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 407 transitions. [2022-11-20 11:01:46,144 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 227 [2022-11-20 11:01:46,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:01:46,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:01:46,146 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:46,146 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:46,146 INFO L748 eck$LassoCheckResult]: Stem: 976#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 909#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 910#L900 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 954#L893 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 950#L908 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 951#L864 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 895#L838 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 896#L625-2 [2022-11-20 11:01:46,147 INFO L750 eck$LassoCheckResult]: Loop: 896#L625-2 assume !false; 1018#L626 assume test_~splverifierCounter~0#1 < 4; 1017#L627 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1013#L635 assume !(0 != test_~tmp~5#1); 1011#L635-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1009#L645 assume !(0 != test_~tmp___0~1#1); 1006#L645-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1005#L655 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 949#L608 assume { :end_inline_startSystem } true; 891#L663-2 assume { :begin_inline_timeShift } true; 892#L444 assume !(0 != ~pumpRunning~0); 880#L444-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 881#L476 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 864#L768 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 865#L773 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 917#L578 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 918#L578-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 939#L584 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 920#L480 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 921#L468 assume { :end_inline_processEnvironment__wrappee__base } true; 977#L476-1 assume { :end_inline_processEnvironment } true; 1038#L451-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1037#L728 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1026#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 1023#L928-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1022#L461 assume { :end_inline_timeShift } true; 896#L625-2 [2022-11-20 11:01:46,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:46,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-20 11:01:46,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:46,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236191720] [2022-11-20 11:01:46,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:46,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:46,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:01:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:46,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:01:46,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:46,178 INFO L85 PathProgramCache]: Analyzing trace with hash -194719955, now seen corresponding path program 1 times [2022-11-20 11:01:46,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:46,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603001621] [2022-11-20 11:01:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:46,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:46,193 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:01:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:46,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:01:46,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:46,206 INFO L85 PathProgramCache]: Analyzing trace with hash -321161231, now seen corresponding path program 1 times [2022-11-20 11:01:46,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:46,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704946742] [2022-11-20 11:01:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:46,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:01:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:01:46,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:01:46,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704946742] [2022-11-20 11:01:46,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704946742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:46,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:46,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:01:46,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524748726] [2022-11-20 11:01:46,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:46,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:01:46,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:01:46,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:01:46,741 INFO L87 Difference]: Start difference. First operand 312 states and 407 transitions. cyclomatic complexity: 98 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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) [2022-11-20 11:01:46,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:01:46,961 INFO L93 Difference]: Finished difference Result 1078 states and 1399 transitions. [2022-11-20 11:01:46,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1078 states and 1399 transitions. [2022-11-20 11:01:46,974 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 836 [2022-11-20 11:01:46,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1078 states to 1078 states and 1399 transitions. [2022-11-20 11:01:46,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1078 [2022-11-20 11:01:46,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1078 [2022-11-20 11:01:46,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1078 states and 1399 transitions. [2022-11-20 11:01:46,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:01:46,990 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1078 states and 1399 transitions. [2022-11-20 11:01:46,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states and 1399 transitions. [2022-11-20 11:01:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 617. [2022-11-20 11:01:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 617 states have (on average 1.2820097244732578) internal successors, (791), 616 states have internal predecessors, (791), 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) [2022-11-20 11:01:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 791 transitions. [2022-11-20 11:01:47,036 INFO L240 hiAutomatonCegarLoop]: Abstraction has 617 states and 791 transitions. [2022-11-20 11:01:47,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:01:47,038 INFO L428 stractBuchiCegarLoop]: Abstraction has 617 states and 791 transitions. [2022-11-20 11:01:47,038 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 11:01:47,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 617 states and 791 transitions. [2022-11-20 11:01:47,042 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 454 [2022-11-20 11:01:47,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:01:47,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:01:47,045 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:47,045 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:01:47,045 INFO L748 eck$LassoCheckResult]: Stem: 2389#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 2318#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 2319#L900 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2366#L893 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 2362#L908 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 2363#L864 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 2305#L838 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2306#L625-2 [2022-11-20 11:01:47,045 INFO L750 eck$LassoCheckResult]: Loop: 2306#L625-2 assume !false; 2694#L626 assume test_~splverifierCounter~0#1 < 4; 2695#L627 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2862#L635 assume !(0 != test_~tmp~5#1); 2861#L635-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2860#L645 assume !(0 != test_~tmp___0~1#1); 2857#L645-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 2840#L655 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2834#L608 assume { :end_inline_startSystem } true; 2832#L663-2 assume { :begin_inline_timeShift } true; 2830#L444 assume !(0 != ~pumpRunning~0); 2780#L444-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 2716#L476 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2714#L768 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2712#L773 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 2711#L578 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2709#L578-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 2708#L584 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 2705#L480 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2706#L468 assume { :end_inline_processEnvironment__wrappee__base } true; 2761#L476-1 assume { :end_inline_processEnvironment } true; 2754#L451-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2753#L728 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 2752#L922 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 2751#L760 __utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 2748#L928 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2747#L928-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2745#L461 assume { :end_inline_timeShift } true; 2306#L625-2 [2022-11-20 11:01:47,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:47,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-11-20 11:01:47,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:47,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098407920] [2022-11-20 11:01:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:47,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:47,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:01:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:47,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:01:47,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:47,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1853936160, now seen corresponding path program 1 times [2022-11-20 11:01:47,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:47,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604035847] [2022-11-20 11:01:47,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:47,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:47,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:01:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:47,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:01:47,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:47,124 INFO L85 PathProgramCache]: Analyzing trace with hash 602954212, now seen corresponding path program 1 times [2022-11-20 11:01:47,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:01:47,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974219975] [2022-11-20 11:01:47,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:01:47,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:01:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:47,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:01:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:47,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:01:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:48,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:01:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:01:48,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:01:48 BoogieIcfgContainer [2022-11-20 11:01:48,670 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:01:48,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:01:48,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:01:48,672 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:01:48,673 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:01:45" (3/4) ... [2022-11-20 11:01:48,676 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 11:01:48,764 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:01:48,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:01:48,765 INFO L158 Benchmark]: Toolchain (without parser) took 4738.78ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 138.5MB in the beginning and 177.2MB in the end (delta: -38.8MB). Peak memory consumption was 501.4kB. Max. memory is 16.1GB. [2022-11-20 11:01:48,766 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:01:48,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.54ms. Allocated memory is still 186.6MB. Free memory was 138.1MB in the beginning and 119.9MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:01:48,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.46ms. Allocated memory is still 186.6MB. Free memory was 119.9MB in the beginning and 117.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:01:48,767 INFO L158 Benchmark]: Boogie Preprocessor took 31.29ms. Allocated memory is still 186.6MB. Free memory was 117.4MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:01:48,768 INFO L158 Benchmark]: RCFGBuilder took 590.34ms. Allocated memory is still 186.6MB. Free memory was 115.3MB in the beginning and 96.9MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:01:48,768 INFO L158 Benchmark]: BuchiAutomizer took 3467.67ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 96.9MB in the beginning and 180.4MB in the end (delta: -83.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:01:48,768 INFO L158 Benchmark]: Witness Printer took 93.42ms. Allocated memory is still 224.4MB. Free memory was 180.4MB in the beginning and 177.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:01:48,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 146.8MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.54ms. Allocated memory is still 186.6MB. Free memory was 138.1MB in the beginning and 119.9MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.46ms. Allocated memory is still 186.6MB. Free memory was 119.9MB in the beginning and 117.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.29ms. Allocated memory is still 186.6MB. Free memory was 117.4MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 590.34ms. Allocated memory is still 186.6MB. Free memory was 115.3MB in the beginning and 96.9MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3467.67ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 96.9MB in the beginning and 180.4MB in the end (delta: -83.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 93.42ms. Allocated memory is still 224.4MB. Free memory was 180.4MB in the beginning and 177.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 617 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 464 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 759 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 759 mSDsluCounter, 1380 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 872 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 508 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 625]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L436] int pumpRunning = 0; [L437] int systemActive = 1; [L685] int waterLevel = 1; [L686] int methaneLevelCritical = 0; [L779] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L855] int retValue_acc ; [L856] int tmp ; [L860] FCALL select_helpers() [L861] FCALL select_features() [L862] CALL, EXPR valid_product() [L904] int retValue_acc ; [L907] retValue_acc = 1 [L908] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L862] RET, EXPR valid_product() [L862] tmp = valid_product() [L864] COND TRUE \read(tmp) [L866] FCALL setup() [L867] CALL runTest() [L846] CALL test() [L616] int splverifierCounter ; [L617] int tmp ; [L618] int tmp___0 ; [L619] int tmp___1 ; [L620] int tmp___2 ; [L623] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L625] COND TRUE 1 [L627] COND TRUE splverifierCounter < 4 [L633] tmp = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp)) [L643] tmp___0 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___0)) [L653] tmp___2 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___2) [L657] CALL startSystem() [L607] systemActive = 1 [L657] RET startSystem() [L672] CALL timeShift() [L444] COND FALSE !(\read(pumpRunning)) [L451] COND TRUE \read(systemActive) [L453] CALL processEnvironment() [L473] int tmp ; [L476] COND TRUE ! pumpRunning [L478] CALL, EXPR isHighWaterLevel() [L570] int retValue_acc ; [L571] int tmp ; [L572] int tmp___0 ; [L576] CALL, EXPR isHighWaterSensorDry() [L765] int retValue_acc ; [L768] COND TRUE waterLevel < 2 [L769] retValue_acc = 1 [L770] return (retValue_acc); [L576] RET, EXPR isHighWaterSensorDry() [L576] tmp = isHighWaterSensorDry() [L578] COND TRUE \read(tmp) [L579] tmp___0 = 0 [L583] retValue_acc = tmp___0 [L584] return (retValue_acc); [L478] RET, EXPR isHighWaterLevel() [L478] tmp = isHighWaterLevel() [L480] COND FALSE !(\read(tmp)) [L486] FCALL processEnvironment__wrappee__base() [L453] RET processEnvironment() [L459] CALL __utac_acc__Specification3_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L920] CALL, EXPR isMethaneLevelCritical() [L724] int retValue_acc ; [L727] retValue_acc = methaneLevelCritical [L728] return (retValue_acc); [L920] RET, EXPR isMethaneLevelCritical() [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L926] CALL, EXPR getWaterLevel() [L756] int retValue_acc ; [L759] retValue_acc = waterLevel [L760] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp___0 = getWaterLevel() [L928] COND FALSE !(tmp___0 == 2) [L459] RET __utac_acc__Specification3_spec__1() [L672] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 625]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L436] int pumpRunning = 0; [L437] int systemActive = 1; [L685] int waterLevel = 1; [L686] int methaneLevelCritical = 0; [L779] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L855] int retValue_acc ; [L856] int tmp ; [L860] FCALL select_helpers() [L861] FCALL select_features() [L862] CALL, EXPR valid_product() [L904] int retValue_acc ; [L907] retValue_acc = 1 [L908] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L862] RET, EXPR valid_product() [L862] tmp = valid_product() [L864] COND TRUE \read(tmp) [L866] FCALL setup() [L867] CALL runTest() [L846] CALL test() [L616] int splverifierCounter ; [L617] int tmp ; [L618] int tmp___0 ; [L619] int tmp___1 ; [L620] int tmp___2 ; [L623] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L625] COND TRUE 1 [L627] COND TRUE splverifierCounter < 4 [L633] tmp = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp)) [L643] tmp___0 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___0)) [L653] tmp___2 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___2) [L657] CALL startSystem() [L607] systemActive = 1 [L657] RET startSystem() [L672] CALL timeShift() [L444] COND FALSE !(\read(pumpRunning)) [L451] COND TRUE \read(systemActive) [L453] CALL processEnvironment() [L473] int tmp ; [L476] COND TRUE ! pumpRunning [L478] CALL, EXPR isHighWaterLevel() [L570] int retValue_acc ; [L571] int tmp ; [L572] int tmp___0 ; [L576] CALL, EXPR isHighWaterSensorDry() [L765] int retValue_acc ; [L768] COND TRUE waterLevel < 2 [L769] retValue_acc = 1 [L770] return (retValue_acc); [L576] RET, EXPR isHighWaterSensorDry() [L576] tmp = isHighWaterSensorDry() [L578] COND TRUE \read(tmp) [L579] tmp___0 = 0 [L583] retValue_acc = tmp___0 [L584] return (retValue_acc); [L478] RET, EXPR isHighWaterLevel() [L478] tmp = isHighWaterLevel() [L480] COND FALSE !(\read(tmp)) [L486] FCALL processEnvironment__wrappee__base() [L453] RET processEnvironment() [L459] CALL __utac_acc__Specification3_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L920] CALL, EXPR isMethaneLevelCritical() [L724] int retValue_acc ; [L727] retValue_acc = methaneLevelCritical [L728] return (retValue_acc); [L920] RET, EXPR isMethaneLevelCritical() [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L926] CALL, EXPR getWaterLevel() [L756] int retValue_acc ; [L759] retValue_acc = waterLevel [L760] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp___0 = getWaterLevel() [L928] COND FALSE !(tmp___0 == 2) [L459] RET __utac_acc__Specification3_spec__1() [L672] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 11:01:48,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1870c23-6278-48d2-8bfe-7fcddbd79b65/bin/uautomizer-ug76WZFUDN/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)