./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be --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 73b8e020dd9d30fdd676c81009d4f1b850aa716d63ef29ce3d475a261546f853 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-e943c26 [2021-10-21 19:56:04,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:56:04,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:56:04,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:56:04,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:56:04,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:56:04,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:56:04,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:56:04,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:56:04,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:56:04,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:56:04,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:56:04,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:56:04,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:56:04,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:56:04,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:56:04,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:56:04,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:56:04,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:56:04,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:56:04,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:56:04,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:56:04,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:56:04,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:56:04,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:56:04,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:56:04,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:56:04,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:56:04,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:56:04,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:56:04,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:56:04,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:56:04,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:56:04,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:56:04,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:56:04,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:56:04,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:56:04,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:56:04,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:56:04,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:56:04,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:56:04,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:56:04,441 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:56:04,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:56:04,442 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:56:04,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:56:04,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:56:04,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:56:04,444 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:56:04,444 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:56:04,444 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:56:04,445 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:56:04,445 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:56:04,445 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:56:04,445 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:56:04,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:56:04,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:56:04,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:56:04,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:56:04,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:56:04,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:56:04,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:56:04,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:56:04,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:56:04,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:56:04,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:56:04,448 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:56:04,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:56:04,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:56:04,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:56:04,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:56:04,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:56:04,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:56:04,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:56:04,451 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:56:04,451 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_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73b8e020dd9d30fdd676c81009d4f1b850aa716d63ef29ce3d475a261546f853 [2021-10-21 19:56:04,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:56:04,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:56:04,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:56:04,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:56:04,724 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:56:04,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2021-10-21 19:56:04,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/data/af7b61e8d/35f2faddd9cb4861bdc45e35c43f1dac/FLAGb8fa0061d [2021-10-21 19:56:05,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:56:05,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c [2021-10-21 19:56:05,369 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/data/af7b61e8d/35f2faddd9cb4861bdc45e35c43f1dac/FLAGb8fa0061d [2021-10-21 19:56:05,707 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/data/af7b61e8d/35f2faddd9cb4861bdc45e35c43f1dac [2021-10-21 19:56:05,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:56:05,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:56:05,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:56:05,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:56:05,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:56:05,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:56:05" (1/1) ... [2021-10-21 19:56:05,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66994fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:05, skipping insertion in model container [2021-10-21 19:56:05,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:56:05" (1/1) ... [2021-10-21 19:56:05,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:56:05,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:56:06,100 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_b5f85547-5545-40af-8cf3-589b8ff9129c/sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c[15211,15224] [2021-10-21 19:56:06,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:56:06,165 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:56:06,261 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_b5f85547-5545-40af-8cf3-589b8ff9129c/sv-benchmarks/c/product-lines/minepump_spec5_product46.cil.c[15211,15224] [2021-10-21 19:56:06,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:56:06,301 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:56:06,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06 WrapperNode [2021-10-21 19:56:06,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:56:06,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:56:06,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:56:06,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:56:06,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:56:06,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:56:06,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:56:06,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:56:06,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:56:06,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:56:06,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:56:06,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:56:06,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (1/1) ... [2021-10-21 19:56:06,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:06,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:06,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:06,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:56:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:56:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:56:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:56:06,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:56:07,569 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:56:07,570 INFO L299 CfgBuilder]: Removed 208 assume(true) statements. [2021-10-21 19:56:07,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:56:07 BoogieIcfgContainer [2021-10-21 19:56:07,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:56:07,573 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:56:07,573 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:56:07,576 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:56:07,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:56:07,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:56:05" (1/3) ... [2021-10-21 19:56:07,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c266912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:56:07, skipping insertion in model container [2021-10-21 19:56:07,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:56:07,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:56:06" (2/3) ... [2021-10-21 19:56:07,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c266912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:56:07, skipping insertion in model container [2021-10-21 19:56:07,580 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:56:07,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:56:07" (3/3) ... [2021-10-21 19:56:07,581 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2021-10-21 19:56:07,623 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:56:07,623 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:56:07,623 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:56:07,623 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:56:07,623 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:56:07,624 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:56:07,624 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:56:07,624 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:56:07,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 135 states, 134 states have (on average 1.5) internal successors, (201), 134 states have internal predecessors, (201), 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) [2021-10-21 19:56:07,673 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2021-10-21 19:56:07,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:56:07,674 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:56:07,681 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:07,681 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:07,681 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:56:07,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 135 states, 134 states have (on average 1.5) internal successors, (201), 134 states have internal predecessors, (201), 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) [2021-10-21 19:56:07,692 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2021-10-21 19:56:07,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:56:07,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:56:07,693 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:07,693 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:07,698 INFO L791 eck$LassoCheckResult]: Stem: 118#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 41#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 120#L693true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 122#L701true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 60#L193true assume 0 != main_~tmp~1; 11#L165true ~switchedOnBeforeTS~0 := 0; 104#L59true havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 113#L80-1true [2021-10-21 19:56:07,699 INFO L793 eck$LassoCheckResult]: Loop: 113#L80-1true assume !false; 75#L935true assume test_~splverifierCounter~0 < 4; 37#L936true test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 7#L944true assume !(0 != test_~tmp~9); 27#L944-1true test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 130#L954true assume !(0 != test_~tmp___0~2); 65#L954-1true test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 79#L964true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 124#L972-2true havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 134#L856true __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 19#L69true assume !(0 != ~pumpRunning~0); 66#L728true assume !(0 != ~systemActive~0); 126#L735true havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 133#L652true __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 9#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 113#L80-1true [2021-10-21 19:56:07,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:07,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:56:07,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:07,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385072017] [2021-10-21 19:56:07,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:07,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:08,018 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:08,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:08,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:08,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1013654413, now seen corresponding path program 1 times [2021-10-21 19:56:08,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:08,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138092555] [2021-10-21 19:56:08,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:08,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:08,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:08,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:08,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138092555] [2021-10-21 19:56:08,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138092555] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:08,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:56:08,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:56:08,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885852149] [2021-10-21 19:56:08,275 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:56:08,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:08,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:56:08,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:08,292 INFO L87 Difference]: Start difference. First operand has 135 states, 134 states have (on average 1.5) internal successors, (201), 134 states have internal predecessors, (201), 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) [2021-10-21 19:56:08,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:08,331 INFO L93 Difference]: Finished difference Result 135 states and 191 transitions. [2021-10-21 19:56:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:56:08,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 191 transitions. [2021-10-21 19:56:08,337 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-10-21 19:56:08,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 128 states and 183 transitions. [2021-10-21 19:56:08,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2021-10-21 19:56:08,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2021-10-21 19:56:08,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2021-10-21 19:56:08,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:56:08,346 INFO L681 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2021-10-21 19:56:08,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2021-10-21 19:56:08,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-10-21 19:56:08,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 128 states have (on average 1.4296875) internal successors, (183), 127 states have internal predecessors, (183), 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) [2021-10-21 19:56:08,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 183 transitions. [2021-10-21 19:56:08,380 INFO L704 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2021-10-21 19:56:08,380 INFO L587 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2021-10-21 19:56:08,380 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:56:08,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states and 183 transitions. [2021-10-21 19:56:08,383 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-10-21 19:56:08,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:56:08,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:56:08,384 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:08,384 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:08,385 INFO L791 eck$LassoCheckResult]: Stem: 403#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 348#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 349#L693 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 404#L701 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 377#L193 assume 0 != main_~tmp~1; 295#L165 ~switchedOnBeforeTS~0 := 0; 296#L59 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 292#L80-1 [2021-10-21 19:56:08,385 INFO L793 eck$LassoCheckResult]: Loop: 292#L80-1 assume !false; 385#L935 assume test_~splverifierCounter~0 < 4; 341#L936 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 285#L944 assume !(0 != test_~tmp~9); 287#L944-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 325#L954 assume !(0 != test_~tmp___0~2); 333#L954-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 380#L964 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 309#L972-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 405#L856 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 310#L69 assume !(0 != ~pumpRunning~0); 311#L728 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 313#L786 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 314#L760-1 assume !(0 == ~pumpRunning~0); 347#L735 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 406#L652 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 290#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 292#L80-1 [2021-10-21 19:56:08,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:08,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:56:08,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:08,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842991053] [2021-10-21 19:56:08,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:08,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:08,440 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:08,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:08,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:08,505 INFO L82 PathProgramCache]: Analyzing trace with hash 378995151, now seen corresponding path program 1 times [2021-10-21 19:56:08,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:08,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370244087] [2021-10-21 19:56:08,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:08,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:08,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:08,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370244087] [2021-10-21 19:56:08,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370244087] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:08,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:56:08,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:56:08,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838170842] [2021-10-21 19:56:08,526 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:56:08,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:08,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:56:08,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:56:08,528 INFO L87 Difference]: Start difference. First operand 128 states and 183 transitions. cyclomatic complexity: 57 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) [2021-10-21 19:56:08,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:08,609 INFO L93 Difference]: Finished difference Result 177 states and 242 transitions. [2021-10-21 19:56:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:56:08,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 242 transitions. [2021-10-21 19:56:08,613 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2021-10-21 19:56:08,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 242 transitions. [2021-10-21 19:56:08,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-10-21 19:56:08,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-10-21 19:56:08,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 242 transitions. [2021-10-21 19:56:08,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:56:08,618 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 242 transitions. [2021-10-21 19:56:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 242 transitions. [2021-10-21 19:56:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-10-21 19:56:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.3672316384180792) internal successors, (242), 176 states have internal predecessors, (242), 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) [2021-10-21 19:56:08,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2021-10-21 19:56:08,630 INFO L704 BuchiCegarLoop]: Abstraction has 177 states and 242 transitions. [2021-10-21 19:56:08,630 INFO L587 BuchiCegarLoop]: Abstraction has 177 states and 242 transitions. [2021-10-21 19:56:08,630 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:56:08,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 242 transitions. [2021-10-21 19:56:08,632 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2021-10-21 19:56:08,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:56:08,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:56:08,633 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:08,634 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, 1, 1, 1, 1] [2021-10-21 19:56:08,634 INFO L791 eck$LassoCheckResult]: Stem: 721#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 657#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 658#L693 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 722#L701 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 688#L193 assume 0 != main_~tmp~1; 606#L165 ~switchedOnBeforeTS~0 := 0; 607#L59 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 603#L80-1 [2021-10-21 19:56:08,634 INFO L793 eck$LassoCheckResult]: Loop: 603#L80-1 assume !false; 698#L935 assume test_~splverifierCounter~0 < 4; 699#L936 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 765#L944 assume !(0 != test_~tmp~9); 763#L944-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 762#L954 assume !(0 != test_~tmp___0~2); 760#L954-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 759#L964 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 723#L972-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 724#L856 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 621#L69 assume !(0 != ~pumpRunning~0); 622#L728 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 623#L786 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 624#L760-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 656#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 638#L665-1 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 639#L905-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 701#L905-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 720#L911-1 processEnvironment__wrappee__methaneQuery_#t~ret57 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret57;havoc processEnvironment__wrappee__methaneQuery_#t~ret57; 718#L764-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 691#L735 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 725#L652 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 601#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 603#L80-1 [2021-10-21 19:56:08,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:08,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 19:56:08,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:08,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697509369] [2021-10-21 19:56:08,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:08,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:08,681 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:08,736 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:08,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:08,737 INFO L82 PathProgramCache]: Analyzing trace with hash 490241563, now seen corresponding path program 1 times [2021-10-21 19:56:08,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:08,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908202190] [2021-10-21 19:56:08,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:08,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:08,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:56:08,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908202190] [2021-10-21 19:56:08,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908202190] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:56:08,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:56:08,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:56:08,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847603140] [2021-10-21 19:56:08,780 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:56:08,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:08,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:56:08,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:56:08,782 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. cyclomatic complexity: 67 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-10-21 19:56:09,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:09,027 INFO L93 Difference]: Finished difference Result 497 states and 667 transitions. [2021-10-21 19:56:09,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:56:09,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 497 states and 667 transitions. [2021-10-21 19:56:09,033 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 319 [2021-10-21 19:56:09,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 497 states to 497 states and 667 transitions. [2021-10-21 19:56:09,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 497 [2021-10-21 19:56:09,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 497 [2021-10-21 19:56:09,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 497 states and 667 transitions. [2021-10-21 19:56:09,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:56:09,043 INFO L681 BuchiCegarLoop]: Abstraction has 497 states and 667 transitions. [2021-10-21 19:56:09,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states and 667 transitions. [2021-10-21 19:56:09,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 347. [2021-10-21 19:56:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 347 states have (on average 1.3342939481268012) internal successors, (463), 346 states have internal predecessors, (463), 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) [2021-10-21 19:56:09,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 463 transitions. [2021-10-21 19:56:09,069 INFO L704 BuchiCegarLoop]: Abstraction has 347 states and 463 transitions. [2021-10-21 19:56:09,070 INFO L587 BuchiCegarLoop]: Abstraction has 347 states and 463 transitions. [2021-10-21 19:56:09,070 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:56:09,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 347 states and 463 transitions. [2021-10-21 19:56:09,073 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2021-10-21 19:56:09,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:56:09,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:56:09,076 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:09,076 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, 1, 1, 1, 1, 1, 1] [2021-10-21 19:56:09,076 INFO L791 eck$LassoCheckResult]: Stem: 1423#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1349#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 1350#L693 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1424#L701 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 1379#L193 assume 0 != main_~tmp~1; 1295#L165 ~switchedOnBeforeTS~0 := 0; 1296#L59 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1340#L80-1 [2021-10-21 19:56:09,077 INFO L793 eck$LassoCheckResult]: Loop: 1340#L80-1 assume !false; 1394#L935 assume test_~splverifierCounter~0 < 4; 1395#L936 test_~tmp~9 := test_#t~nondet78;havoc test_#t~nondet78; 1621#L944 assume !(0 != test_~tmp~9); 1620#L944-1 test_~tmp___0~2 := test_#t~nondet79;havoc test_#t~nondet79; 1618#L954 assume !(0 != test_~tmp___0~2); 1616#L954-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 1615#L964 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1613#L972-2 havoc __utac_acc__Specification5_spec__2_#t~ret7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1612#L856 __utac_acc__Specification5_spec__2_#t~ret7 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret7;havoc __utac_acc__Specification5_spec__2_#t~ret7; 1611#L69 assume !(0 != ~pumpRunning~0); 1603#L728 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1312#L786 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1313#L760-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1346#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1327#L665-1 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 1328#L905-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1396#L905-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1422#L911-1 processEnvironment__wrappee__methaneQuery_#t~ret57 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret57;havoc processEnvironment__wrappee__methaneQuery_#t~ret57; 1418#L764-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 1383#L735 havoc __utac_acc__Specification5_spec__3_#t~ret8, __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1427#L652 __utac_acc__Specification5_spec__3_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret8;havoc __utac_acc__Specification5_spec__3_#t~ret8; 1291#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1292#L856-1 __utac_acc__Specification5_spec__3_#t~ret9 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 1323#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 1340#L80-1 [2021-10-21 19:56:09,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:09,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-21 19:56:09,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:09,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240350374] [2021-10-21 19:56:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:09,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,153 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:09,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:09,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1324272170, now seen corresponding path program 1 times [2021-10-21 19:56:09,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:09,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140954758] [2021-10-21 19:56:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:09,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,209 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,217 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:09,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:09,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1387698352, now seen corresponding path program 1 times [2021-10-21 19:56:09,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:09,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74212036] [2021-10-21 19:56:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:09,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,247 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,291 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:57:03,031 WARN L207 SmtUtils]: Spent 53.36 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:57:59,292 WARN L207 SmtUtils]: Spent 27.41 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:57:59,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:57:59 BoogieIcfgContainer [2021-10-21 19:57:59,450 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:57:59,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:57:59,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:57:59,454 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:57:59,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:56:07" (3/4) ... [2021-10-21 19:57:59,460 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:57:59,525 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:57:59,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:57:59,527 INFO L168 Benchmark]: Toolchain (without parser) took 113810.33 ms. Allocated memory was 96.5 MB in the beginning and 165.7 MB in the end (delta: 69.2 MB). Free memory was 60.8 MB in the beginning and 90.9 MB in the end (delta: -30.1 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:59,527 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 96.5 MB. Free memory was 66.4 MB in the beginning and 66.3 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:57:59,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.78 ms. Allocated memory is still 96.5 MB. Free memory was 60.8 MB in the beginning and 63.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:59,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.07 ms. Allocated memory is still 96.5 MB. Free memory was 63.8 MB in the beginning and 59.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:59,528 INFO L168 Benchmark]: Boogie Preprocessor took 86.42 ms. Allocated memory is still 96.5 MB. Free memory was 59.6 MB in the beginning and 56.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:59,529 INFO L168 Benchmark]: RCFGBuilder took 1076.59 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 56.8 MB in the beginning and 81.6 MB in the end (delta: -24.8 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:59,529 INFO L168 Benchmark]: BuchiAutomizer took 111880.39 ms. Allocated memory was 130.0 MB in the beginning and 165.7 MB in the end (delta: 35.7 MB). Free memory was 80.8 MB in the beginning and 94.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:59,530 INFO L168 Benchmark]: Witness Printer took 72.10 ms. Allocated memory is still 165.7 MB. Free memory was 94.1 MB in the beginning and 90.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:57:59,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 96.5 MB. Free memory was 66.4 MB in the beginning and 66.3 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 584.78 ms. Allocated memory is still 96.5 MB. Free memory was 60.8 MB in the beginning and 63.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.07 ms. Allocated memory is still 96.5 MB. Free memory was 63.8 MB in the beginning and 59.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.42 ms. Allocated memory is still 96.5 MB. Free memory was 59.6 MB in the beginning and 56.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1076.59 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 56.8 MB in the beginning and 81.6 MB in the end (delta: -24.8 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 111880.39 ms. Allocated memory was 130.0 MB in the beginning and 165.7 MB in the end (delta: 35.7 MB). Free memory was 80.8 MB in the beginning and 94.1 MB in the end (delta: -13.3 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.1 GB. * Witness Printer took 72.10 ms. Allocated memory is still 165.7 MB. Free memory was 94.1 MB in the beginning and 90.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 347 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 111.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 111.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 57.6ms AutomataMinimizationTime, 3 MinimizatonAttempts, 150 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 347 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 624 SDtfs, 927 SDslu, 651 SDs, 0 SdLazy, 122 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 212.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 934]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=19292} State at position 1 is {NULL=0, NULL=0, NULL=21005, NULL=19292, NULL=0, NULL=0, NULL=21008, methaneLevelCritical=0, NULL=0, NULL=19293, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ab1388=0, NULL=21012, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fdd799=0, tmp___1=0, tmp=0, NULL=21014, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@796128e0=0, NULL=21007, retValue_acc=0, cleanupTimeShifts=4, NULL=20994, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=21018, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, retValue_acc=0, NULL=0, NULL=0, tmp=1, tmp___0=0, NULL=21003, retValue_acc=1, NULL=21019, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d94ad2e=0, head=0, tmp=0, NULL=20995, NULL=0, NULL=0, NULL=20993, NULL=21009, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7042f2c3=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=21002, NULL=0, NULL=21017, tmp___0=0, NULL=21013, NULL=0, tmp=1, NULL=0, NULL=21016, switchedOnBeforeTS=0, NULL=21000, \result=0, NULL=20997, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ff11ceb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e366e28=0, NULL=0, NULL=0, systemActive=1, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34b72eed=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eeae27e=68, \result=0, NULL=20996, NULL=0, NULL=0, NULL=21010, tmp___0=0, NULL=20998, \result=0, NULL=21006, NULL=0, retValue_acc=1, NULL=20999, tmp___2=68, splverifierCounter=0, NULL=0, NULL=21015, NULL=21011, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d054646=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a48374b=0, NULL=21004, NULL=21001} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L102] int cleanupTimeShifts = 4; [L376] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L718] int pumpRunning = 0; [L719] int systemActive = 1; [L184] int retValue_acc ; [L185] int tmp ; [L697] int retValue_acc ; [L700] retValue_acc = 1 [L701] return (retValue_acc); [L191] tmp = valid_product() [L193] COND TRUE \read(tmp) [L58] switchedOnBeforeTS = 0 [L925] int splverifierCounter ; [L926] int tmp ; [L927] int tmp___0 ; [L928] int tmp___1 ; [L929] int tmp___2 ; [L932] splverifierCounter = 0 Loop: [L934] COND TRUE 1 [L936] COND TRUE splverifierCounter < 4 [L942] tmp = __VERIFIER_nondet_int() [L944] COND FALSE !(\read(tmp)) [L952] tmp___0 = __VERIFIER_nondet_int() [L954] COND FALSE !(\read(tmp___0)) [L962] tmp___2 = __VERIFIER_nondet_int() [L964] COND TRUE \read(tmp___2) [L919] systemActive = 1 [L852] int retValue_acc ; [L855] retValue_acc = pumpRunning [L856] return (retValue_acc); [L67] switchedOnBeforeTS = isPumpRunning() [L728] COND FALSE !(\read(pumpRunning)) [L735] COND TRUE \read(systemActive) [L783] int tmp ; [L786] COND FALSE !(\read(pumpRunning)) [L757] int tmp ; [L760] COND TRUE ! pumpRunning [L897] int retValue_acc ; [L898] int tmp ; [L899] int tmp___0 ; [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L903] tmp = isHighWaterSensorDry() [L905] COND TRUE \read(tmp) [L906] tmp___0 = 0 [L910] retValue_acc = tmp___0 [L911] return (retValue_acc); [L762] tmp = isHighWaterLevel() [L764] COND FALSE !(\read(tmp)) [L73] int tmp ; [L74] int tmp___0 ; [L648] int retValue_acc ; [L651] retValue_acc = waterLevel [L652] return (retValue_acc); [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L852] int retValue_acc ; [L855] retValue_acc = pumpRunning [L856] return (retValue_acc); [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:57:59,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5f85547-5545-40af-8cf3-589b8ff9129c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...