./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.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_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:38:23,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:38:23,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:38:24,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:38:24,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:38:24,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:38:24,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:38:24,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:38:24,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:38:24,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:38:24,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:38:24,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:38:24,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:38:24,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:38:24,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:38:24,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:38:24,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:38:24,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:38:24,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:38:24,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:38:24,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:38:24,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:38:24,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:38:24,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:38:24,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:38:24,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:38:24,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:38:24,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:38:24,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:38:24,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:38:24,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:38:24,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:38:24,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:38:24,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:38:24,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:38:24,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:38:24,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:38:24,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:38:24,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:38:24,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:38:24,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:38:24,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:38:24,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:38:24,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:38:24,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:38:24,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:38:24,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:38:24,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:38:24,099 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:38:24,099 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:38:24,099 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:38:24,100 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:38:24,101 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:38:24,101 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:38:24,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:38:24,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:38:24,102 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:38:24,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:38:24,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:38:24,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:38:24,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:38:24,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:38:24,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:38:24,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:38:24,103 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:38:24,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:38:24,104 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:38:24,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:38:24,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:38:24,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:38:24,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:38:24,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:38:24,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:38:24,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:38:24,107 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:38:24,108 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_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a [2021-10-28 09:38:24,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:38:24,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:38:24,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:38:24,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:38:24,452 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:38:24,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2021-10-28 09:38:24,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/data/87f6616e5/a466dd3b4ad347aa8702e6ad41bd9728/FLAGad4dccc51 [2021-10-28 09:38:25,169 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:38:25,169 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2021-10-28 09:38:25,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/data/87f6616e5/a466dd3b4ad347aa8702e6ad41bd9728/FLAGad4dccc51 [2021-10-28 09:38:25,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/data/87f6616e5/a466dd3b4ad347aa8702e6ad41bd9728 [2021-10-28 09:38:25,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:38:25,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:38:25,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:25,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:38:25,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:38:25,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:25,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46aacbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25, skipping insertion in model container [2021-10-28 09:38:25,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:25,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:38:25,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:38:25,835 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_61d40f6a-d62a-40c9-88df-883714744da5/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c[18403,18416] [2021-10-28 09:38:25,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:25,846 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:38:25,920 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_61d40f6a-d62a-40c9-88df-883714744da5/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c[18403,18416] [2021-10-28 09:38:25,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:25,962 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:38:25,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25 WrapperNode [2021-10-28 09:38:25,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:25,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:38:25,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:38:25,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:38:25,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:25,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:26,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:38:26,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:38:26,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:38:26,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:38:26,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:26,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:26,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:26,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:26,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:26,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:26,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:26,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:38:26,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:38:26,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:38:26,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:38:26,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (1/1) ... [2021-10-28 09:38:26,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:38:26,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:26,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:26,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:38:26,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:38:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:38:26,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:38:26,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:38:27,178 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:38:27,178 INFO L299 CfgBuilder]: Removed 120 assume(true) statements. [2021-10-28 09:38:27,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:27 BoogieIcfgContainer [2021-10-28 09:38:27,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:38:27,183 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:38:27,183 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:38:27,189 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:38:27,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:38:27,190 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:38:25" (1/3) ... [2021-10-28 09:38:27,192 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11dd106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:38:27, skipping insertion in model container [2021-10-28 09:38:27,192 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:38:27,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:25" (2/3) ... [2021-10-28 09:38:27,193 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11dd106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:38:27, skipping insertion in model container [2021-10-28 09:38:27,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:38:27,193 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:27" (3/3) ... [2021-10-28 09:38:27,195 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2021-10-28 09:38:27,249 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:38:27,250 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:38:27,250 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:38:27,250 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:38:27,250 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:38:27,250 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:38:27,250 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:38:27,250 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:38:27,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.5280898876404494) internal successors, (136), 89 states have internal predecessors, (136), 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 09:38:27,312 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-10-28 09:38:27,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:38:27,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:38:27,321 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:27,321 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:27,321 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:38:27,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.5280898876404494) internal successors, (136), 89 states have internal predecessors, (136), 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 09:38:27,339 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-10-28 09:38:27,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:38:27,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:38:27,341 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:27,341 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:27,353 INFO L791 eck$LassoCheckResult]: Stem: 68#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~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 54#L-1true havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 47#L643true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 64#L651true main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 41#L607true assume 0 != main_~tmp~3; 61#L578true ~methAndRunningLastTime~0 := 0; 50#L664true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 26#L675-1true [2021-10-28 09:38:27,353 INFO L793 eck$LassoCheckResult]: Loop: 26#L675-1true assume !false; 63#L709true assume test_~splverifierCounter~0 < 4; 4#L710true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 31#L718true assume !(0 != test_~tmp~5); 85#L718-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 87#L728true assume !(0 != test_~tmp___0~1); 67#L728-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 79#L738true assume 0 != test_~tmp___2~0; 12#L744-1true assume !(0 != ~pumpRunning~0); 25#L774true assume !(0 != ~systemActive~0); 38#L781true havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;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; 11#L100-1true __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 90#L675true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 26#L675-1true [2021-10-28 09:38:27,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:27,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 09:38:27,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:27,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573597323] [2021-10-28 09:38:27,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:27,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:27,668 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:27,834 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:27,848 INFO L85 PathProgramCache]: Analyzing trace with hash 11680531, now seen corresponding path program 1 times [2021-10-28 09:38:27,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:27,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153559504] [2021-10-28 09:38:27,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:27,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:27,860 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:27,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:27,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:27,892 INFO L85 PathProgramCache]: Analyzing trace with hash 844977037, now seen corresponding path program 1 times [2021-10-28 09:38:27,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:27,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631533077] [2021-10-28 09:38:27,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:27,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:28,085 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 09:38:28,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:28,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631533077] [2021-10-28 09:38:28,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631533077] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:28,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:28,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:38:28,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811380400] [2021-10-28 09:38:28,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:38:28,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:38:28,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:38:28,286 INFO L87 Difference]: Start difference. First operand has 90 states, 89 states have (on average 1.5280898876404494) internal successors, (136), 89 states have internal predecessors, (136), 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 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:38:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:28,617 INFO L93 Difference]: Finished difference Result 226 states and 319 transitions. [2021-10-28 09:38:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:38:28,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 319 transitions. [2021-10-28 09:38:28,635 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 143 [2021-10-28 09:38:28,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 205 states and 298 transitions. [2021-10-28 09:38:28,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2021-10-28 09:38:28,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 205 [2021-10-28 09:38:28,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 205 states and 298 transitions. [2021-10-28 09:38:28,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:38:28,656 INFO L681 BuchiCegarLoop]: Abstraction has 205 states and 298 transitions. [2021-10-28 09:38:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states and 298 transitions. [2021-10-28 09:38:28,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 127. [2021-10-28 09:38:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 127 states have (on average 1.4488188976377954) internal successors, (184), 126 states have internal predecessors, (184), 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 09:38:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 184 transitions. [2021-10-28 09:38:28,692 INFO L704 BuchiCegarLoop]: Abstraction has 127 states and 184 transitions. [2021-10-28 09:38:28,692 INFO L587 BuchiCegarLoop]: Abstraction has 127 states and 184 transitions. [2021-10-28 09:38:28,693 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:38:28,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 127 states and 184 transitions. [2021-10-28 09:38:28,694 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2021-10-28 09:38:28,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:38:28,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:38:28,695 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:28,695 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:28,695 INFO L791 eck$LassoCheckResult]: Stem: 411#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~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 401#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 397#L643 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 398#L651 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 391#L607 assume 0 != main_~tmp~3; 392#L578 ~methAndRunningLastTime~0 := 0; 400#L664 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 369#L675-1 [2021-10-28 09:38:28,695 INFO L793 eck$LassoCheckResult]: Loop: 369#L675-1 assume !false; 370#L709 assume test_~splverifierCounter~0 < 4; 334#L710 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 335#L718 assume !(0 != test_~tmp~5); 379#L718-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 417#L728 assume !(0 != test_~tmp___0~1); 409#L728-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 410#L738 assume 0 != test_~tmp___2~0; 351#L744-1 assume !(0 != ~pumpRunning~0); 342#L774 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 336#L806 assume !(0 == ~pumpRunning~0); 338#L781 havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;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; 349#L100-1 __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 350#L675 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 369#L675-1 [2021-10-28 09:38:28,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:28,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 09:38:28,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:28,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990083000] [2021-10-28 09:38:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:28,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:28,776 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:28,895 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:28,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:28,896 INFO L85 PathProgramCache]: Analyzing trace with hash 320327041, now seen corresponding path program 1 times [2021-10-28 09:38:28,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:28,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545597557] [2021-10-28 09:38:28,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:28,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:28,923 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 09:38:28,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:38:28,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545597557] [2021-10-28 09:38:28,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545597557] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:28,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:28,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:38:28,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378560736] [2021-10-28 09:38:28,933 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:38:28,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:38:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:28,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:28,937 INFO L87 Difference]: Start difference. First operand 127 states and 184 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 09:38:29,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:29,013 INFO L93 Difference]: Finished difference Result 169 states and 233 transitions. [2021-10-28 09:38:29,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:29,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 233 transitions. [2021-10-28 09:38:29,018 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2021-10-28 09:38:29,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 169 states and 233 transitions. [2021-10-28 09:38:29,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2021-10-28 09:38:29,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2021-10-28 09:38:29,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 233 transitions. [2021-10-28 09:38:29,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:38:29,026 INFO L681 BuchiCegarLoop]: Abstraction has 169 states and 233 transitions. [2021-10-28 09:38:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 233 transitions. [2021-10-28 09:38:29,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-10-28 09:38:29,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 169 states have (on average 1.378698224852071) internal successors, (233), 168 states have internal predecessors, (233), 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 09:38:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2021-10-28 09:38:29,045 INFO L704 BuchiCegarLoop]: Abstraction has 169 states and 233 transitions. [2021-10-28 09:38:29,045 INFO L587 BuchiCegarLoop]: Abstraction has 169 states and 233 transitions. [2021-10-28 09:38:29,045 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:38:29,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 169 states and 233 transitions. [2021-10-28 09:38:29,047 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2021-10-28 09:38:29,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:38:29,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:38:29,048 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:29,048 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] [2021-10-28 09:38:29,048 INFO L791 eck$LassoCheckResult]: Stem: 722#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~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 711#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 705#L643 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 706#L651 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 698#L607 assume 0 != main_~tmp~3; 699#L578 ~methAndRunningLastTime~0 := 0; 708#L664 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 677#L675-1 [2021-10-28 09:38:29,049 INFO L793 eck$LassoCheckResult]: Loop: 677#L675-1 assume !false; 678#L709 assume test_~splverifierCounter~0 < 4; 636#L710 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 637#L718 assume !(0 != test_~tmp~5); 687#L718-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 729#L728 assume !(0 != test_~tmp___0~1); 720#L728-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 721#L738 assume 0 != test_~tmp___2~0; 658#L744-1 assume !(0 != ~pumpRunning~0); 659#L774 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret60, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 638#L806 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret79, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 639#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 727#L145 isHighWaterLevel_#t~ret79 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret79;havoc isHighWaterLevel_#t~ret79; 694#L926 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 695#L926-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 668#L932 processEnvironment_#t~ret60 := isHighWaterLevel_#res;processEnvironment_~tmp~6 := processEnvironment_#t~ret60;havoc processEnvironment_#t~ret60; 640#L810 assume !(0 != processEnvironment_~tmp~6); 641#L781 havoc __utac_acc__Specification2_spec__2_#t~ret54, __utac_acc__Specification2_spec__2_#t~ret55, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;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; 649#L100-1 __utac_acc__Specification2_spec__2_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret54;havoc __utac_acc__Specification2_spec__2_#t~ret54; 650#L675 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 677#L675-1 [2021-10-28 09:38:29,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:29,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 09:38:29,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:29,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052275478] [2021-10-28 09:38:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:29,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:29,133 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:29,225 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:29,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:29,225 INFO L85 PathProgramCache]: Analyzing trace with hash 333870637, now seen corresponding path program 1 times [2021-10-28 09:38:29,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:29,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452629830] [2021-10-28 09:38:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:29,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:29,231 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:29,239 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:38:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1499447411, now seen corresponding path program 1 times [2021-10-28 09:38:29,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:38:29,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534659229] [2021-10-28 09:38:29,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:29,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:38:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:29,274 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:38:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:38:29,322 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:39:30,429 WARN L207 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 09:40:29,801 WARN L207 SmtUtils]: Spent 27.43 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 09:40:29,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:40:29 BoogieIcfgContainer [2021-10-28 09:40:29,983 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:40:29,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:40:29,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:40:29,986 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:40:29,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:27" (3/4) ... [2021-10-28 09:40:29,989 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:40:30,040 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:40:30,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:40:30,041 INFO L168 Benchmark]: Toolchain (without parser) took 124588.53 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 60.1 MB in the beginning and 34.0 MB in the end (delta: 26.1 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:30,041 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:40:30,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.59 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 60.1 MB in the beginning and 80.6 MB in the end (delta: -20.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:30,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.28 ms. Allocated memory is still 113.2 MB. Free memory was 80.6 MB in the beginning and 77.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:30,043 INFO L168 Benchmark]: Boogie Preprocessor took 41.77 ms. Allocated memory is still 113.2 MB. Free memory was 77.5 MB in the beginning and 75.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:30,043 INFO L168 Benchmark]: RCFGBuilder took 1095.62 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 83.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:30,043 INFO L168 Benchmark]: BuchiAutomizer took 122799.70 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 82.8 MB in the beginning and 37.2 MB in the end (delta: 45.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:30,044 INFO L168 Benchmark]: Witness Printer took 56.53 ms. Allocated memory is still 142.6 MB. Free memory was 36.1 MB in the beginning and 34.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:40:30,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 509.59 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 60.1 MB in the beginning and 80.6 MB in the end (delta: -20.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.28 ms. Allocated memory is still 113.2 MB. Free memory was 80.6 MB in the beginning and 77.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.77 ms. Allocated memory is still 113.2 MB. Free memory was 77.5 MB in the beginning and 75.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1095.62 ms. Allocated memory is still 113.2 MB. Free memory was 75.4 MB in the beginning and 83.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 122799.70 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 82.8 MB in the beginning and 37.2 MB in the end (delta: 45.6 MB). Peak memory consumption was 83.0 MB. Max. memory is 16.1 GB. * Witness Printer took 56.53 ms. Allocated memory is still 142.6 MB. Free memory was 36.1 MB in the beginning and 34.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 169 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 122.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 122.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 78 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 169 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 243 SDtfs, 571 SDslu, 674 SDs, 0 SdLazy, 64 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 708]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=26623} State at position 1 is {NULL=0, NULL=0, NULL=26643, NULL=0, NULL=26623, NULL=26636, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ec56d61=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50432513=0, NULL=26637, methaneLevelCritical=0, tmp=0, NULL=0, NULL=26640, tmp___1=0, NULL=0, NULL=26649, NULL=26639, cleanupTimeShifts=4, NULL=26626, NULL=26638, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=26624, \result=1, head=0, pumpRunning=0, tmp=1, NULL=26646, NULL=0, retValue_acc=1, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, tmp=1, tmp___0=0, methAndRunningLastTime=0, NULL=26647, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@709142bd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71b22e4e=0, head=0, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=26648, NULL=26642, NULL=26631, NULL=26627, tmp___0=0, NULL=26650, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@132d9cc6=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=0, NULL=26644, \result=0, NULL=0, NULL=26625, NULL=26645, NULL=26632, \result=0, NULL=26633, NULL=0, NULL=26629, NULL=26628, tmp___0=0, retValue_acc=1, NULL=26651, tmp___2=59, splverifierCounter=0, NULL=0, \result=0, NULL=26635, NULL=26641, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34d0b564=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6147b129=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4023432a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67313abc=0, NULL=26630, NULL=26634, tmp=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L517] int cleanupTimeShifts = 4; [L658] int methAndRunningLastTime ; [L767] int pumpRunning = 0; [L768] int systemActive = 1; [L598] int retValue_acc ; [L599] int tmp ; [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) [L663] methAndRunningLastTime = 0 [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 Loop: [L708] COND TRUE 1 [L710] COND TRUE splverifierCounter < 4 [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L774] COND FALSE !(\read(pumpRunning)) [L781] COND TRUE \read(systemActive) [L803] int tmp ; [L806] COND TRUE ! pumpRunning [L918] int retValue_acc ; [L919] int tmp ; [L920] int tmp___0 ; [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L924] tmp = isHighWaterSensorDry() [L926] COND TRUE \read(tmp) [L927] tmp___0 = 0 [L931] retValue_acc = tmp___0 [L932] return (retValue_acc); [L808] tmp = isHighWaterLevel() [L810] COND FALSE !(\read(tmp)) [L668] int tmp ; [L669] int tmp___0 ; [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L691] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:40:30,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d40f6a-d62a-40c9-88df-883714744da5/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...