./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD --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 a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340
....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(TERM)
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 23:23:41,655 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:23:41,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:23:41,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:23:41,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:23:41,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:23:41,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:23:41,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:23:41,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:23:41,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:23:41,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:23:41,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:23:41,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:23:41,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:23:41,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:23:41,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:23:41,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:23:41,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:23:41,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:23:41,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:23:41,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:23:41,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:23:41,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:23:41,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:23:41,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:23:41,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:23:41,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:23:41,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:23:41,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:23:41,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:23:41,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:23:41,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:23:41,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:23:41,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:23:41,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:23:41,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:23:41,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:23:41,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:23:41,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:23:41,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:23:41,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:23:41,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf
[2021-10-28 23:23:41,839 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:23:41,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:23:41,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:23:41,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:23:41,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:23:41,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:23:41,845 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:23:41,846 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-10-28 23:23:41,846 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2021-10-28 23:23:41,846 INFO L138 SettingsManager]: * Use old map elimination=false
[2021-10-28 23:23:41,847 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2021-10-28 23:23:41,847 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2021-10-28 23:23:41,847 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2021-10-28 23:23:41,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:23:41,848 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-28 23:23:41,848 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-10-28 23:23:41,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:23:41,849 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-28 23:23:41,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:23:41,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2021-10-28 23:23:41,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-10-28 23:23:41,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2021-10-28 23:23:41,850 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-28 23:23:41,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 23:23:41,851 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2021-10-28 23:23:41,851 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:23:41,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2021-10-28 23:23:41,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:23:41,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:23:41,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:23:41,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:23:41,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:23:41,855 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-10-28 23:23:41,855 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_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340
[2021-10-28 23:23:42,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:23:42,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:23:42,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:23:42,279 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:23:42,280 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:23:42,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c
[2021-10-28 23:23:42,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/data/e26afaaf0/63fbf00aed4c496d986f04430e976109/FLAGe43492ed3
[2021-10-28 23:23:43,020 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:23:43,025 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c
[2021-10-28 23:23:43,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/data/e26afaaf0/63fbf00aed4c496d986f04430e976109/FLAGe43492ed3
[2021-10-28 23:23:43,245 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/data/e26afaaf0/63fbf00aed4c496d986f04430e976109
[2021-10-28 23:23:43,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:23:43,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 23:23:43,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:23:43,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:23:43,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:23:43,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:43,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf66fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43, skipping insertion in model container
[2021-10-28 23:23:43,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:43,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:23:43,356 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:23:43,737 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_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802]
[2021-10-28 23:23:43,738 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:23:43,759 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:23:43,933 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_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802]
[2021-10-28 23:23:43,945 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:23:43,967 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:23:43,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43 WrapperNode
[2021-10-28 23:23:43,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:23:43,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 23:23:43,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 23:23:43,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 23:23:43,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 23:23:44,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:23:44,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:23:44,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:23:44,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:23:44,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:23:44,165 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:23:44,166 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:23:44,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (1/1) ...
[2021-10-28 23:23:44,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 23:23:44,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:23:44,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 23:23:44,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:23:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 23:23:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 23:23:44,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:23:44,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:23:45,299 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:23:45,300 INFO L299 CfgBuilder]: Removed 166 assume(true) statements.
[2021-10-28 23:23:45,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:23:45 BoogieIcfgContainer
[2021-10-28 23:23:45,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:23:45,304 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-10-28 23:23:45,305 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2021-10-28 23:23:45,309 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2021-10-28 23:23:45,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-28 23:23:45,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:23:43" (1/3) ...
[2021-10-28 23:23:45,312 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@388731a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:23:45, skipping insertion in model container
[2021-10-28 23:23:45,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-28 23:23:45,312 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:23:43" (2/3) ...
[2021-10-28 23:23:45,313 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@388731a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:23:45, skipping insertion in model container
[2021-10-28 23:23:45,313 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-28 23:23:45,314 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:23:45" (3/3) ...
[2021-10-28 23:23:45,315 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product51.cil.c
[2021-10-28 23:23:45,387 INFO L359 BuchiCegarLoop]: Interprodecural is true
[2021-10-28 23:23:45,387 INFO L360 BuchiCegarLoop]: Hoare is false
[2021-10-28 23:23:45,387 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-10-28 23:23:45,387 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-28 23:23:45,388 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-28 23:23:45,388 INFO L364 BuchiCegarLoop]: Difference is false
[2021-10-28 23:23:45,388 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-28 23:23:45,388 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-10-28 23:23:45,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 122 states, 121 states have (on average 1.537190082644628) internal successors, (186), 121 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:23:45,462 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79
[2021-10-28 23:23:45,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:23:45,463 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:23:45,473 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1]
[2021-10-28 23:23:45,473 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:23:45,473 INFO L425 BuchiCegarLoop]: ======== Iteration 1============
[2021-10-28 23:23:45,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 122 states, 121 states have (on average 1.537190082644628) internal successors, (186), 121 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:23:45,495 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79
[2021-10-28 23:23:45,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:23:45,495 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:23:45,497 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1]
[2021-10-28 23:23:45,497 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:23:45,508 INFO L791 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 38#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 43#L604true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 6#L612true main_#t~ret45 := valid_product_#res;main_~tmp~6 := main_#t~ret45;havoc main_#t~ret45; 124#L568true assume 0 != main_~tmp~6; 9#L542true havoc test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 30#L464-1true
[2021-10-28 23:23:45,512 INFO L793 eck$LassoCheckResult]: Loop: 30#L464-1true assume !false; 7#L175true assume test_~splverifierCounter~0 < 4; 41#L176true test_~tmp~0 := test_#t~nondet17;havoc test_#t~nondet17; 72#L184true assume !(0 != test_~tmp~0); 110#L184-1true test_~tmp___0~0 := test_#t~nondet18;havoc test_#t~nondet18; 85#L194true assume !(0 != test_~tmp___0~0); 8#L194-1true test_~tmp___2~0 := test_#t~nondet19;havoc test_#t~nondet19; 94#L204true assume 0 != test_~tmp___2~0; 29#L210-1true assume !(0 != ~pumpRunning~0); 68#L243true assume !(0 != ~systemActive~0); 79#L250true havoc __utac_acc__Specification3_spec__1_#t~ret42, __utac_acc__Specification3_spec__1_#t~ret43, __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 108#L101true __utac_acc__Specification3_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret42;havoc __utac_acc__Specification3_spec__1_#t~ret42; 91#L458true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 30#L464-1true
[2021-10-28 23:23:45,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:45,518 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times
[2021-10-28 23:23:45,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:45,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514513581]
[2021-10-28 23:23:45,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:45,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:45,838 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:23:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:46,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:23:46,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:46,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1671186434, now seen corresponding path program 1 times
[2021-10-28 23:23:46,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:46,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049350712]
[2021-10-28 23:23:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:46,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:46,094 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:23:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:46,115 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:23:46,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:46,117 INFO L85 PathProgramCache]: Analyzing trace with hash 43092504, now seen corresponding path program 1 times
[2021-10-28 23:23:46,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:46,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122912467]
[2021-10-28 23:23:46,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:46,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:23:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:23:46,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:23:46,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122912467]
[2021-10-28 23:23:46,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122912467] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:23:46,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:23:46,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-28 23:23:46,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497188787]
[2021-10-28 23:23:46,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:23:46,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 23:23:46,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:23:46,538 INFO L87 Difference]: Start difference. First operand has 122 states, 121 states have (on average 1.537190082644628) internal successors, (186), 121 states have internal predecessors, (186), 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 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:23:46,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:23:46,936 INFO L93 Difference]: Finished difference Result 294 states and 423 transitions.
[2021-10-28 23:23:46,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-10-28 23:23:46,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 294 states and 423 transitions.
[2021-10-28 23:23:46,949 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 189
[2021-10-28 23:23:46,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 294 states to 273 states and 402 transitions.
[2021-10-28 23:23:46,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 273
[2021-10-28 23:23:46,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 273
[2021-10-28 23:23:46,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 273 states and 402 transitions.
[2021-10-28 23:23:46,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-28 23:23:46,966 INFO L681 BuchiCegarLoop]: Abstraction has 273 states and 402 transitions.
[2021-10-28 23:23:46,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states and 402 transitions.
[2021-10-28 23:23:47,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 162.
[2021-10-28 23:23:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 162 states have (on average 1.462962962962963) internal successors, (237), 161 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:23:47,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 237 transitions.
[2021-10-28 23:23:47,013 INFO L704 BuchiCegarLoop]: Abstraction has 162 states and 237 transitions.
[2021-10-28 23:23:47,013 INFO L587 BuchiCegarLoop]: Abstraction has 162 states and 237 transitions.
[2021-10-28 23:23:47,013 INFO L425 BuchiCegarLoop]: ======== Iteration 2============
[2021-10-28 23:23:47,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 237 transitions.
[2021-10-28 23:23:47,015 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112
[2021-10-28 23:23:47,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:23:47,015 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:23:47,016 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1]
[2021-10-28 23:23:47,017 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:23:47,017 INFO L791 eck$LassoCheckResult]: Stem: 549#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 495#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 496#L604 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 438#L612 main_#t~ret45 := valid_product_#res;main_~tmp~6 := main_#t~ret45;havoc main_#t~ret45; 439#L568 assume 0 != main_~tmp~6; 445#L542 havoc test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 446#L464-1
[2021-10-28 23:23:47,017 INFO L793 eck$LassoCheckResult]: Loop: 446#L464-1 assume !false; 440#L175 assume test_~splverifierCounter~0 < 4; 441#L176 test_~tmp~0 := test_#t~nondet17;havoc test_#t~nondet17; 500#L184 assume !(0 != test_~tmp~0); 520#L184-1 test_~tmp___0~0 := test_#t~nondet18;havoc test_#t~nondet18; 534#L194 assume !(0 != test_~tmp___0~0); 443#L194-1 test_~tmp___2~0 := test_#t~nondet19;havoc test_#t~nondet19; 444#L204 assume 0 != test_~tmp___2~0; 449#L210-1 assume !(0 != ~pumpRunning~0); 470#L243 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 526#L301 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 531#L275-1 assume !(0 == ~pumpRunning~0); 513#L250 havoc __utac_acc__Specification3_spec__1_#t~ret42, __utac_acc__Specification3_spec__1_#t~ret43, __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 532#L101 __utac_acc__Specification3_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret42;havoc __utac_acc__Specification3_spec__1_#t~ret42; 541#L458 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 446#L464-1
[2021-10-28 23:23:47,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:47,018 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times
[2021-10-28 23:23:47,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:47,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071270896]
[2021-10-28 23:23:47,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:47,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:47,072 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:23:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:47,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:23:47,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:47,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1961899900, now seen corresponding path program 1 times
[2021-10-28 23:23:47,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:47,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457230522]
[2021-10-28 23:23:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:47,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:23:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:23:47,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:23:47,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457230522]
[2021-10-28 23:23:47,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457230522] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:23:47,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:23:47,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:23:47,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237046400]
[2021-10-28 23:23:47,232 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 23:23:47,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:23:47,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-28 23:23:47,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-28 23:23:47,233 INFO L87 Difference]: Start difference. First operand 162 states and 237 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:23:47,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:23:47,360 INFO L93 Difference]: Finished difference Result 207 states and 286 transitions.
[2021-10-28 23:23:47,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-28 23:23:47,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 286 transitions.
[2021-10-28 23:23:47,366 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146
[2021-10-28 23:23:47,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 286 transitions.
[2021-10-28 23:23:47,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207
[2021-10-28 23:23:47,373 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207
[2021-10-28 23:23:47,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 286 transitions.
[2021-10-28 23:23:47,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-28 23:23:47,383 INFO L681 BuchiCegarLoop]: Abstraction has 207 states and 286 transitions.
[2021-10-28 23:23:47,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 286 transitions.
[2021-10-28 23:23:47,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207.
[2021-10-28 23:23:47,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 207 states have (on average 1.3816425120772946) internal successors, (286), 206 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:23:47,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 286 transitions.
[2021-10-28 23:23:47,407 INFO L704 BuchiCegarLoop]: Abstraction has 207 states and 286 transitions.
[2021-10-28 23:23:47,408 INFO L587 BuchiCegarLoop]: Abstraction has 207 states and 286 transitions.
[2021-10-28 23:23:47,409 INFO L425 BuchiCegarLoop]: ======== Iteration 3============
[2021-10-28 23:23:47,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 286 transitions.
[2021-10-28 23:23:47,413 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 146
[2021-10-28 23:23:47,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:23:47,414 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:23:47,416 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1]
[2021-10-28 23:23:47,416 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]
[2021-10-28 23:23:47,417 INFO L791 eck$LassoCheckResult]: Stem: 937#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 873#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 874#L604 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 813#L612 main_#t~ret45 := valid_product_#res;main_~tmp~6 := main_#t~ret45;havoc main_#t~ret45; 814#L568 assume 0 != main_~tmp~6; 820#L542 havoc test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 821#L464-1
[2021-10-28 23:23:47,418 INFO L793 eck$LassoCheckResult]: Loop: 821#L464-1 assume !false; 864#L175 assume test_~splverifierCounter~0 < 4; 987#L176 test_~tmp~0 := test_#t~nondet17;havoc test_#t~nondet17; 998#L184 assume !(0 != test_~tmp~0); 996#L184-1 test_~tmp___0~0 := test_#t~nondet18;havoc test_#t~nondet18; 995#L194 assume !(0 != test_~tmp___0~0); 993#L194-1 test_~tmp___2~0 := test_#t~nondet19;havoc test_#t~nondet19; 929#L204 assume 0 != test_~tmp___2~0; 824#L210-1 assume !(0 != ~pumpRunning~0); 908#L243 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 909#L301 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 915#L275-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret40, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 935#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 844#L146-1 isHighWaterLevel_#t~ret40 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret40;havoc isHighWaterLevel_#t~ret40; 845#L403-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 825#L403-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 826#L409-1 processEnvironment__wrappee__highWaterSensor_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret21;havoc processEnvironment__wrappee__highWaterSensor_#t~ret21; 884#L279-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 892#L250 havoc __utac_acc__Specification3_spec__1_#t~ret42, __utac_acc__Specification3_spec__1_#t~ret43, __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 916#L101 __utac_acc__Specification3_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret42;havoc __utac_acc__Specification3_spec__1_#t~ret42; 926#L458 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5; 821#L464-1
[2021-10-28 23:23:47,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:47,419 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times
[2021-10-28 23:23:47,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:47,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845370129]
[2021-10-28 23:23:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:47,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:47,512 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:23:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:47,575 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:23:47,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:47,576 INFO L85 PathProgramCache]: Analyzing trace with hash -2099215608, now seen corresponding path program 1 times
[2021-10-28 23:23:47,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:47,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838214729]
[2021-10-28 23:23:47,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:47,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:47,582 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:23:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:47,598 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:23:47,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:47,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1643144414, now seen corresponding path program 1 times
[2021-10-28 23:23:47,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:47,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127968271]
[2021-10-28 23:23:47,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:47,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:23:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:23:47,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:23:47,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127968271]
[2021-10-28 23:23:47,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127968271] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:23:47,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:23:47,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-28 23:23:47,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098971806]
[2021-10-28 23:23:48,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:23:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 23:23:48,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:23:48,008 INFO L87 Difference]: Start difference. First operand 207 states and 286 transitions. cyclomatic complexity: 82 Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:23:48,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:23:48,128 INFO L93 Difference]: Finished difference Result 705 states and 979 transitions.
[2021-10-28 23:23:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-10-28 23:23:48,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 705 states and 979 transitions.
[2021-10-28 23:23:48,137 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 531
[2021-10-28 23:23:48,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 705 states to 705 states and 979 transitions.
[2021-10-28 23:23:48,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 705
[2021-10-28 23:23:48,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 705
[2021-10-28 23:23:48,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 705 states and 979 transitions.
[2021-10-28 23:23:48,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-28 23:23:48,147 INFO L681 BuchiCegarLoop]: Abstraction has 705 states and 979 transitions.
[2021-10-28 23:23:48,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states and 979 transitions.
[2021-10-28 23:23:48,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 408.
[2021-10-28 23:23:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 408 states have (on average 1.357843137254902) internal successors, (554), 407 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:23:48,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 554 transitions.
[2021-10-28 23:23:48,179 INFO L704 BuchiCegarLoop]: Abstraction has 408 states and 554 transitions.
[2021-10-28 23:23:48,179 INFO L587 BuchiCegarLoop]: Abstraction has 408 states and 554 transitions.
[2021-10-28 23:23:48,179 INFO L425 BuchiCegarLoop]: ======== Iteration 4============
[2021-10-28 23:23:48,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 408 states and 554 transitions.
[2021-10-28 23:23:48,182 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 292
[2021-10-28 23:23:48,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 23:23:48,183 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 23:23:48,183 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1]
[2021-10-28 23:23:48,183 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]
[2021-10-28 23:23:48,184 INFO L791 eck$LassoCheckResult]: Stem: 1886#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(21);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(30);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(9);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1806#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~6;havoc main_~retValue_acc~8;havoc main_~tmp~6; 1807#L604 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1743#L612 main_#t~ret45 := valid_product_#res;main_~tmp~6 := main_#t~ret45;havoc main_#t~ret45; 1744#L568 assume 0 != main_~tmp~6; 1750#L542 havoc test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1751#L464-1
[2021-10-28 23:23:48,184 INFO L793 eck$LassoCheckResult]: Loop: 1751#L464-1 assume !false; 2095#L175 assume test_~splverifierCounter~0 < 4; 2096#L176 test_~tmp~0 := test_#t~nondet17;havoc test_#t~nondet17; 2136#L184 assume !(0 != test_~tmp~0); 2134#L184-1 test_~tmp___0~0 := test_#t~nondet18;havoc test_#t~nondet18; 2133#L194 assume !(0 != test_~tmp___0~0); 2132#L194-1 test_~tmp___2~0 := test_#t~nondet19;havoc test_#t~nondet19; 2129#L204 assume 0 != test_~tmp___2~0; 2128#L210-1 assume !(0 != ~pumpRunning~0); 1847#L243 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1848#L301 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1855#L275-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret40, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1881#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1774#L146-1 isHighWaterLevel_#t~ret40 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret40;havoc isHighWaterLevel_#t~ret40; 1775#L403-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 1755#L403-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1756#L409-1 processEnvironment__wrappee__highWaterSensor_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret21;havoc processEnvironment__wrappee__highWaterSensor_#t~ret21; 1819#L279-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1829#L250 havoc __utac_acc__Specification3_spec__1_#t~ret42, __utac_acc__Specification3_spec__1_#t~ret43, __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_~tmp~5, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~5;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 2102#L101 __utac_acc__Specification3_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~5 := __utac_acc__Specification3_spec__1_#t~ret42;havoc __utac_acc__Specification3_spec__1_#t~ret42; 2101#L458 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 2100#L133 __utac_acc__Specification3_spec__1_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret43;havoc __utac_acc__Specification3_spec__1_#t~ret43; 2097#L464 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 1751#L464-1
[2021-10-28 23:23:48,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:48,185 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times
[2021-10-28 23:23:48,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:48,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147309934]
[2021-10-28 23:23:48,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:48,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:48,214 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:23:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:48,251 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:23:48,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:48,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1288438010, now seen corresponding path program 1 times
[2021-10-28 23:23:48,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:48,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024428350]
[2021-10-28 23:23:48,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:48,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:48,258 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:23:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:48,266 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:23:48,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:23:48,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1486191252, now seen corresponding path program 1 times
[2021-10-28 23:23:48,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:23:48,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654491428]
[2021-10-28 23:23:48,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:23:48,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:23:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:48,297 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 23:23:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 23:23:48,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 23:24:57,024 WARN L207 SmtUtils]: Spent 1.14 m on a formula simplification. DAG size of input: 491 DAG size of output: 433
[2021-10-28 23:26:15,902 WARN L207 SmtUtils]: Spent 36.98 s on a formula simplification that was a NOOP. DAG size: 433
[2021-10-28 23:26:16,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:26:16 BoogieIcfgContainer
[2021-10-28 23:26:16,095 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2021-10-28 23:26:16,096 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:26:16,096 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:26:16,096 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:26:16,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:23:45" (3/4) ...
[2021-10-28 23:26:16,100 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample
[2021-10-28 23:26:16,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:26:16,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:26:16,159 INFO L168 Benchmark]: Toolchain (without parser) took 152905.13 ms. Allocated memory was 86.0 MB in the beginning and 146.8 MB in the end (delta: 60.8 MB). Free memory was 48.1 MB in the beginning and 82.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB.
[2021-10-28 23:26:16,159 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 65.1 MB in the beginning and 65.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:26:16,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.71 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 47.9 MB in the beginning and 88.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 23:26:16,161 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.86 ms. Allocated memory is still 121.6 MB. Free memory was 88.8 MB in the beginning and 85.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 23:26:16,161 INFO L168 Benchmark]: Boogie Preprocessor took 74.51 ms. Allocated memory is still 121.6 MB. Free memory was 85.2 MB in the beginning and 82.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:26:16,162 INFO L168 Benchmark]: RCFGBuilder took 1138.06 ms. Allocated memory is still 121.6 MB. Free memory was 82.5 MB in the beginning and 93.6 MB in the end (delta: -11.1 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB.
[2021-10-28 23:26:16,163 INFO L168 Benchmark]: BuchiAutomizer took 150791.08 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 92.9 MB in the beginning and 85.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 94.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:26:16,163 INFO L168 Benchmark]: Witness Printer took 61.76 ms. Allocated memory is still 146.8 MB. Free memory was 85.1 MB in the beginning and 82.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:26:16,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 65.1 MB in the beginning and 65.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 711.71 ms. Allocated memory was 86.0 MB in the beginning and 121.6 MB in the end (delta: 35.7 MB). Free memory was 47.9 MB in the beginning and 88.8 MB in the end (delta: -40.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 119.86 ms. Allocated memory is still 121.6 MB. Free memory was 88.8 MB in the beginning and 85.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 74.51 ms. Allocated memory is still 121.6 MB. Free memory was 85.2 MB in the beginning and 82.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 1138.06 ms. Allocated memory is still 121.6 MB. Free memory was 82.5 MB in the beginning and 93.6 MB in the end (delta: -11.1 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB.
* BuchiAutomizer took 150791.08 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 92.9 MB in the beginning and 85.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 94.4 MB. Max. memory is 16.1 GB.
* Witness Printer took 61.76 ms. Allocated memory is still 146.8 MB. Free memory was 85.1 MB in the beginning and 82.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 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 6 locations. The remainder module has 408 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 150.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 149.7s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 408 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 408 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 605 SDtfs, 1483 SDslu, 1676 SDs, 0 SdLazy, 117 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 174]: Nontermination argument in form of an infinite program execution.
Nontermination argument in form of an infinite execution
State at position 0 is
{NULL=31068}
State at position 1 is
{NULL=0, NULL=31092, NULL=31068, NULL=31086, methaneLevelCritical=0, retValue_acc=1, NULL=0, NULL=31073, NULL=31084, NULL=0, tmp___1=0, NULL=31072, retValue_acc=0, NULL=0, NULL=31078, cleanupTimeShifts=4, tmp=0, tmp=0, NULL=31090, NULL=0, waterLevel=1, NULL=0, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=31088, retValue_acc=1, NULL=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=0, NULL=0, tmp=1, NULL=0, NULL=31079, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a711daa=70, NULL=31080, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d23712f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56030cf=0, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a9ea81e=0, NULL=31071, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7992778e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6369df75=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69ebe720=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fe52716=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7afed429=0, retValue_acc=0, NULL=31070, NULL=31076, tmp___0=0, NULL=0, NULL=0, NULL=31083, NULL=0, NULL=0, NULL=0, tmp=0, NULL=31089, NULL=31082, tmp___0=1, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=31095, \result=1, NULL=0, NULL=31069, \result=0, NULL=0, NULL=31093, \result=0, NULL=31077, NULL=0, NULL=31075, NULL=31087, NULL=31085, NULL=31096, tmp___2=70, splverifierCounter=0, NULL=0, \result=0, NULL=31094, NULL=31081, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7aff114e=0, NULL=31091, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67b80431=0, NULL=31074}
- StatisticsResult: NonterminationArgumentStatistics
Fixpoint
- NonterminatingLassoResult [Line: 1]: Nonterminating execution
Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L58] int waterLevel = 1;
[L59] int methaneLevelCritical = 0;
[L235] int pumpRunning = 0;
[L236] int systemActive = 1;
[L483] int cleanupTimeShifts = 4;
[L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L559] int retValue_acc ;
[L560] int tmp ;
[L608] int retValue_acc ;
[L611] retValue_acc = 1
[L612] return (retValue_acc);
[L566] tmp = valid_product()
[L568] COND TRUE \read(tmp)
[L165] int splverifierCounter ;
[L166] int tmp ;
[L167] int tmp___0 ;
[L168] int tmp___1 ;
[L169] int tmp___2 ;
[L172] splverifierCounter = 0
Loop:
[L174] COND TRUE 1
[L176] COND TRUE splverifierCounter < 4
[L182] tmp = __VERIFIER_nondet_int()
[L184] COND FALSE !(\read(tmp))
[L192] tmp___0 = __VERIFIER_nondet_int()
[L194] COND FALSE !(\read(tmp___0))
[L202] tmp___2 = __VERIFIER_nondet_int()
[L204] COND TRUE \read(tmp___2)
[L243] COND FALSE !(\read(pumpRunning))
[L250] COND TRUE \read(systemActive)
[L298] int tmp ;
[L301] COND FALSE !(\read(pumpRunning))
[L272] int tmp ;
[L275] COND TRUE ! pumpRunning
[L395] int retValue_acc ;
[L396] int tmp ;
[L397] int tmp___0 ;
[L138] int retValue_acc ;
[L141] COND TRUE waterLevel < 2
[L142] retValue_acc = 1
[L143] return (retValue_acc);
[L401] tmp = isHighWaterSensorDry()
[L403] COND TRUE \read(tmp)
[L404] tmp___0 = 0
[L408] retValue_acc = tmp___0
[L409] return (retValue_acc);
[L277] tmp = isHighWaterLevel()
[L279] COND FALSE !(\read(tmp))
[L450] int tmp ;
[L451] int tmp___0 ;
[L452] int tmp___1 ;
[L97] int retValue_acc ;
[L100] retValue_acc = methaneLevelCritical
[L101] return (retValue_acc);
[L456] tmp = isMethaneLevelCritical()
[L458] COND FALSE !(\read(tmp))
[L129] int retValue_acc ;
[L132] retValue_acc = waterLevel
[L133] return (retValue_acc);
[L462] tmp___0 = getWaterLevel()
[L464] COND FALSE !(tmp___0 == 2)
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
[2021-10-28 23:26:16,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8027514-04e5-4ef2-938b-1fc3ac0a86fa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...