./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9808c311cb77db500c7a82ff25628e80c7518c8fd36dd31cb0dd04b17c42877b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:46:39,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:46:39,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:46:39,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:46:39,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:46:39,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:46:39,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:46:39,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:46:39,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:46:40,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:46:40,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:46:40,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:46:40,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:46:40,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:46:40,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:46:40,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:46:40,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:46:40,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:46:40,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:46:40,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:46:40,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:46:40,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:46:40,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:46:40,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:46:40,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:46:40,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:46:40,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:46:40,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:46:40,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:46:40,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:46:40,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:46:40,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:46:40,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:46:40,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:46:40,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:46:40,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:46:40,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:46:40,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:46:40,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:46:40,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:46:40,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:46:40,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:46:40,128 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:46:40,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:46:40,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:46:40,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:46:40,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:46:40,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:46:40,132 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:46:40,132 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:46:40,132 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:46:40,133 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:46:40,133 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:46:40,133 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:46:40,133 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:46:40,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:46:40,134 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:46:40,134 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:46:40,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:46:40,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:46:40,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:46:40,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:46:40,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:46:40,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:46:40,136 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:46:40,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:46:40,137 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:46:40,137 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:46:40,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:46:40,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:46:40,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:46:40,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:46:40,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:46:40,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:46:40,140 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:46:40,141 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_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9808c311cb77db500c7a82ff25628e80c7518c8fd36dd31cb0dd04b17c42877b [2021-10-28 08:46:40,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:46:40,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:46:40,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:46:40,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:46:40,480 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:46:40,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c [2021-10-28 08:46:40,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/data/c53bc53a0/f327bec6ff5349568867f00a0d2b4297/FLAG663b331e5 [2021-10-28 08:46:41,232 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:46:41,232 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c [2021-10-28 08:46:41,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/data/c53bc53a0/f327bec6ff5349568867f00a0d2b4297/FLAG663b331e5 [2021-10-28 08:46:41,504 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/data/c53bc53a0/f327bec6ff5349568867f00a0d2b4297 [2021-10-28 08:46:41,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:46:41,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:46:41,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:46:41,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:46:41,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:46:41,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:46:41" (1/1) ... [2021-10-28 08:46:41,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ce18a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:41, skipping insertion in model container [2021-10-28 08:46:41,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:46:41" (1/1) ... [2021-10-28 08:46:41,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:46:41,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:46:41,991 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_27185169-5ca5-455a-a68c-2db0555665e1/sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c[16407,16420] [2021-10-28 08:46:42,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:46:42,020 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:46:42,092 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_27185169-5ca5-455a-a68c-2db0555665e1/sv-benchmarks/c/product-lines/minepump_spec5_product30.cil.c[16407,16420] [2021-10-28 08:46:42,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:46:42,127 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:46:42,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42 WrapperNode [2021-10-28 08:46:42,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:46:42,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:46:42,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:46:42,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:46:42,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:46:42,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:46:42,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:46:42,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:46:42,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:46:42,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:46:42,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:46:42,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:46:42,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (1/1) ... [2021-10-28 08:46:42,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:46:42,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:42,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:46:42,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:46:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:46:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:46:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:46:42,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:46:43,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:46:43,637 INFO L299 CfgBuilder]: Removed 172 assume(true) statements. [2021-10-28 08:46:43,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:43 BoogieIcfgContainer [2021-10-28 08:46:43,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:46:43,642 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:46:43,642 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:46:43,647 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:46:43,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:46:43,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:46:41" (1/3) ... [2021-10-28 08:46:43,651 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62f30328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:46:43, skipping insertion in model container [2021-10-28 08:46:43,651 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:46:43,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:46:42" (2/3) ... [2021-10-28 08:46:43,652 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62f30328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:46:43, skipping insertion in model container [2021-10-28 08:46:43,652 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:46:43,652 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:43" (3/3) ... [2021-10-28 08:46:43,654 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product30.cil.c [2021-10-28 08:46:43,709 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:46:43,709 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:46:43,709 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:46:43,709 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:46:43,710 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:46:43,710 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:46:43,710 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:46:43,710 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:46:43,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:43,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-28 08:46:43,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:46:43,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:46:43,775 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:43,776 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:43,776 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:46:43,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:43,786 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-28 08:46:43,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:46:43,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:46:43,787 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:43,788 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:43,794 INFO L791 eck$LassoCheckResult]: Stem: 98#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 41#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 103#L414true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 20#L422true main_#t~ret71 := valid_product_#res;main_~tmp~9 := main_#t~ret71;havoc main_#t~ret71; 52#L885true assume 0 != main_~tmp~9; 33#L861true ~switchedOnBeforeTS~0 := 0; 43#L346true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 88#L367-1true [2021-10-28 08:46:43,795 INFO L793 eck$LassoCheckResult]: Loop: 88#L367-1true assume !false; 7#L282true assume test_~splverifierCounter~0 < 4; 83#L283true test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 69#L291true assume !(0 != test_~tmp~4); 50#L291-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 78#L301true assume !(0 != test_~tmp___0~1); 84#L301-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 46#L311true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 19#L319-2true havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 91#L200true __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 77#L356true assume !(0 != ~pumpRunning~0); 61#L72true assume !(0 != ~systemActive~0); 51#L79true havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 42#L974true __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 18#L367true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 88#L367-1true [2021-10-28 08:46:43,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:43,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 08:46:43,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:43,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633198811] [2021-10-28 08:46:43,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:43,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:44,160 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:46:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:44,439 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:46:44,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:44,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1012669325, now seen corresponding path program 1 times [2021-10-28 08:46:44,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:44,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5420283] [2021-10-28 08:46:44,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:44,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:44,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:44,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5420283] [2021-10-28 08:46:44,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5420283] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:44,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:44,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:44,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496596839] [2021-10-28 08:46:44,600 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:46:44,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:44,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:46:44,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:46:44,625 INFO L87 Difference]: Start difference. First operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 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 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:44,674 INFO L93 Difference]: Finished difference Result 111 states and 155 transitions. [2021-10-28 08:46:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:46:44,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 155 transitions. [2021-10-28 08:46:44,683 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-28 08:46:44,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2021-10-28 08:46:44,692 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-10-28 08:46:44,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2021-10-28 08:46:44,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2021-10-28 08:46:44,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:46:44,699 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-10-28 08:46:44,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2021-10-28 08:46:44,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-10-28 08:46:44,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.4134615384615385) internal successors, (147), 103 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2021-10-28 08:46:44,765 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-10-28 08:46:44,770 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-10-28 08:46:44,770 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:46:44,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2021-10-28 08:46:44,774 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-28 08:46:44,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:46:44,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:46:44,780 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:44,780 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:44,780 INFO L791 eck$LassoCheckResult]: Stem: 332#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 287#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 288#L414 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 261#L422 main_#t~ret71 := valid_product_#res;main_~tmp~9 := main_#t~ret71;havoc main_#t~ret71; 262#L885 assume 0 != main_~tmp~9; 280#L861 ~switchedOnBeforeTS~0 := 0; 281#L346 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 258#L367-1 [2021-10-28 08:46:44,781 INFO L793 eck$LassoCheckResult]: Loop: 258#L367-1 assume !false; 236#L282 assume test_~splverifierCounter~0 < 4; 237#L283 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 318#L291 assume !(0 != test_~tmp~4); 298#L291-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 299#L301 assume !(0 != test_~tmp___0~1); 317#L301-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 294#L311 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 259#L319-2 havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 260#L200 __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 323#L356 assume !(0 != ~pumpRunning~0); 312#L72 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 304#L130 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret7, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 305#L104-1 assume !(0 != ~pumpRunning~0); 271#L79 havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 289#L974 __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 256#L367 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 258#L367-1 [2021-10-28 08:46:44,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:44,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 08:46:44,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:44,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476645832] [2021-10-28 08:46:44,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:44,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:44,848 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:46:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:44,938 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:46:44,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:44,941 INFO L85 PathProgramCache]: Analyzing trace with hash 363233727, now seen corresponding path program 1 times [2021-10-28 08:46:44,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:44,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538255610] [2021-10-28 08:46:44,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:44,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:44,949 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:46:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:44,960 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:46:44,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:44,961 INFO L85 PathProgramCache]: Analyzing trace with hash -759378631, now seen corresponding path program 1 times [2021-10-28 08:46:44,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:44,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846707081] [2021-10-28 08:46:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:44,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:45,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:45,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846707081] [2021-10-28 08:46:45,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846707081] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:46:45,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:46:45,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:46:45,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140613434] [2021-10-28 08:46:45,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:45,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:46:45,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:46:45,365 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:45,618 INFO L93 Difference]: Finished difference Result 320 states and 453 transitions. [2021-10-28 08:46:45,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:46:45,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 453 transitions. [2021-10-28 08:46:45,638 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2021-10-28 08:46:45,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 320 states and 453 transitions. [2021-10-28 08:46:45,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2021-10-28 08:46:45,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2021-10-28 08:46:45,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 453 transitions. [2021-10-28 08:46:45,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:46:45,660 INFO L681 BuchiCegarLoop]: Abstraction has 320 states and 453 transitions. [2021-10-28 08:46:45,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 453 transitions. [2021-10-28 08:46:45,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 201. [2021-10-28 08:46:45,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.3930348258706469) internal successors, (280), 200 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2021-10-28 08:46:45,697 INFO L704 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2021-10-28 08:46:45,697 INFO L587 BuchiCegarLoop]: Abstraction has 201 states and 280 transitions. [2021-10-28 08:46:45,697 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:46:45,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 280 transitions. [2021-10-28 08:46:45,699 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 135 [2021-10-28 08:46:45,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:46:45,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:46:45,701 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:45,701 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:46:45,701 INFO L791 eck$LassoCheckResult]: Stem: 782#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 730#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~8, main_~tmp~9;havoc main_~retValue_acc~8;havoc main_~tmp~9; 731#L414 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 701#L422 main_#t~ret71 := valid_product_#res;main_~tmp~9 := main_#t~ret71;havoc main_#t~ret71; 702#L885 assume 0 != main_~tmp~9; 720#L861 ~switchedOnBeforeTS~0 := 0; 721#L346 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 733#L367-1 [2021-10-28 08:46:45,702 INFO L793 eck$LassoCheckResult]: Loop: 733#L367-1 assume !false; 828#L282 assume test_~splverifierCounter~0 < 4; 829#L283 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 863#L291 assume !(0 != test_~tmp~4); 861#L291-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 859#L301 assume !(0 != test_~tmp___0~1); 857#L301-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 856#L311 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 854#L319-2 havoc __utac_acc__Specification5_spec__2_#t~ret32;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 852#L200 __utac_acc__Specification5_spec__2_#t~ret32 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret32;havoc __utac_acc__Specification5_spec__2_#t~ret32; 850#L356 assume !(0 != ~pumpRunning~0); 848#L72 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 846#L130 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret7, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 843#L104-1 assume !(0 != ~pumpRunning~0); 836#L79 havoc __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_#t~ret34, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 834#L974 __utac_acc__Specification5_spec__3_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 833#L367 assume 2 != __utac_acc__Specification5_spec__3_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 832#L200-1 __utac_acc__Specification5_spec__3_#t~ret34 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret34;havoc __utac_acc__Specification5_spec__3_#t~ret34; 831#L371 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 733#L367-1 [2021-10-28 08:46:45,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 08:46:45,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:45,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184952661] [2021-10-28 08:46:45,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:45,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:45,760 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:46:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:45,836 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:46:45,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:45,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1175247994, now seen corresponding path program 1 times [2021-10-28 08:46:45,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:45,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574528766] [2021-10-28 08:46:45,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:45,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:45,852 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:46:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:45,862 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:46:45,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:45,863 INFO L85 PathProgramCache]: Analyzing trace with hash 381563252, now seen corresponding path program 1 times [2021-10-28 08:46:45,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:45,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99126064] [2021-10-28 08:46:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:45,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:45,926 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:46:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:46:45,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:47:55,016 WARN L207 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 08:49:02,255 WARN L207 SmtUtils]: Spent 33.07 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 08:49:02,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:49:02 BoogieIcfgContainer [2021-10-28 08:49:02,401 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:49:02,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:49:02,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:49:02,402 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:49:02,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:46:43" (3/4) ... [2021-10-28 08:49:02,406 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:49:02,473 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:49:02,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:49:02,475 INFO L168 Benchmark]: Toolchain (without parser) took 140965.37 ms. Allocated memory was 92.3 MB in the beginning and 159.4 MB in the end (delta: 67.1 MB). Free memory was 56.4 MB in the beginning and 73.0 MB in the end (delta: -16.5 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:49:02,478 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 62.2 MB in the beginning and 62.2 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:49:02,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.83 ms. Allocated memory was 92.3 MB in the beginning and 125.8 MB in the end (delta: 33.6 MB). Free memory was 56.2 MB in the beginning and 93.4 MB in the end (delta: -37.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:49:02,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.34 ms. Allocated memory is still 125.8 MB. Free memory was 93.4 MB in the beginning and 89.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:49:02,479 INFO L168 Benchmark]: Boogie Preprocessor took 118.87 ms. Allocated memory is still 125.8 MB. Free memory was 89.8 MB in the beginning and 87.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:49:02,483 INFO L168 Benchmark]: RCFGBuilder took 1277.43 ms. Allocated memory is still 125.8 MB. Free memory was 87.2 MB in the beginning and 80.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:49:02,483 INFO L168 Benchmark]: BuchiAutomizer took 138758.88 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 79.8 MB in the beginning and 75.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 83.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:49:02,484 INFO L168 Benchmark]: Witness Printer took 72.21 ms. Allocated memory is still 159.4 MB. Free memory was 75.0 MB in the beginning and 73.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:49:02,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 62.2 MB in the beginning and 62.2 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 616.83 ms. Allocated memory was 92.3 MB in the beginning and 125.8 MB in the end (delta: 33.6 MB). Free memory was 56.2 MB in the beginning and 93.4 MB in the end (delta: -37.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.34 ms. Allocated memory is still 125.8 MB. Free memory was 93.4 MB in the beginning and 89.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.87 ms. Allocated memory is still 125.8 MB. Free memory was 89.8 MB in the beginning and 87.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1277.43 ms. Allocated memory is still 125.8 MB. Free memory was 87.2 MB in the beginning and 80.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 138758.88 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 79.8 MB in the beginning and 75.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 83.0 MB. Max. memory is 16.1 GB. * Witness Printer took 72.21 ms. Allocated memory is still 159.4 MB. Free memory was 75.0 MB in the beginning and 73.0 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 138.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 119 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 393 SDtfs, 695 SDslu, 468 SDs, 0 SdLazy, 100 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 281]: 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=21395, NULL=0, retValue_acc=1, NULL=1, NULL=21398, retValue_acc=0, NULL=21400, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f18bcb1=0, NULL=21397, NULL=21383, methaneLevelCritical=0, NULL=0, tmp=0, tmp=1, NULL=0, NULL=0, NULL=21378, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49e95763=0, NULL=0, NULL=0, NULL=21388, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=21391, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=21376, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fb6ac25=0, NULL=21399, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=21394, \result=1, NULL=21396, head=0, pumpRunning=0, tmp___0=0, NULL=21377, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d9ffc8c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f1f409a=0, NULL=21382, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@420ea2c1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12380ec4=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2615dc8f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50c52928=54, retValue_acc=1, NULL=21380, NULL=0, NULL=21393, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@385ac3dc=0, NULL=0, NULL=21402, NULL=21403, NULL=0, NULL=21386, tmp___2=54, NULL=0, tmp___0=0, NULL=21385, splverifierCounter=0, NULL=0, NULL=0, NULL=21379, NULL=21392, NULL=21381, tmp=0, NULL=21401, head=0, retValue_acc=0, NULL=0, tmp=0, NULL=21387, NULL=0, tmp=1, NULL=0, NULL=21389, NULL=0, NULL=21384, NULL=21390} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L340] int switchedOnBeforeTS ; [L596] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L802] int cleanupTimeShifts = 4; [L899] int waterLevel = 1; [L900] int methaneLevelCritical = 0; [L876] int retValue_acc ; [L877] int tmp ; [L418] int retValue_acc ; [L421] retValue_acc = 1 [L422] return (retValue_acc); [L883] tmp = valid_product() [L885] COND TRUE \read(tmp) [L345] switchedOnBeforeTS = 0 [L272] int splverifierCounter ; [L273] int tmp ; [L274] int tmp___0 ; [L275] int tmp___1 ; [L276] int tmp___2 ; [L279] splverifierCounter = 0 Loop: [L281] COND TRUE 1 [L283] COND TRUE splverifierCounter < 4 [L289] tmp = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp)) [L299] tmp___0 = __VERIFIER_nondet_int() [L301] COND FALSE !(\read(tmp___0)) [L309] tmp___2 = __VERIFIER_nondet_int() [L311] COND TRUE \read(tmp___2) [L263] systemActive = 1 [L196] int retValue_acc ; [L199] retValue_acc = pumpRunning [L200] return (retValue_acc); [L354] switchedOnBeforeTS = isPumpRunning() [L72] COND FALSE !(\read(pumpRunning)) [L79] COND TRUE \read(systemActive) [L127] int tmp ; [L130] COND FALSE !(\read(pumpRunning)) [L101] int tmp ; [L104] COND FALSE !(\read(pumpRunning)) [L360] int tmp ; [L361] int tmp___0 ; [L970] int retValue_acc ; [L973] retValue_acc = waterLevel [L974] return (retValue_acc); [L365] tmp = getWaterLevel() [L367] COND TRUE tmp != 2 [L196] int retValue_acc ; [L199] retValue_acc = pumpRunning [L200] return (retValue_acc); [L369] tmp___0 = isPumpRunning() [L371] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:49:02,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27185169-5ca5-455a-a68c-2db0555665e1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...