./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.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_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/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_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/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_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/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 cb1c81112da7426f28a4c2690555e17bdc3cfadcaf288b3cb23a3bbf0c5e9fe6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:02:59,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:02:59,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:02:59,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:02:59,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:02:59,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:02:59,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:02:59,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:02:59,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:02:59,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:02:59,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:02:59,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:02:59,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:02:59,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:02:59,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:03:00,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:03:00,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:03:00,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:03:00,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:03:00,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:03:00,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:03:00,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:03:00,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:03:00,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:03:00,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:03:00,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:03:00,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:03:00,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:03:00,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:03:00,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:03:00,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:03:00,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:03:00,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:03:00,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:03:00,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:03:00,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:03:00,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:03:00,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:03:00,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:03:00,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:03:00,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:03:00,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:03:00,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:03:00,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:03:00,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:03:00,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:03:00,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:03:00,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:03:00,110 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:03:00,111 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:03:00,111 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:03:00,111 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:03:00,112 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:03:00,113 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:03:00,113 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:03:00,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:03:00,113 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:03:00,114 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:03:00,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:03:00,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:03:00,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:03:00,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:03:00,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:03:00,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:03:00,115 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:03:00,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:03:00,116 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:03:00,116 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:03:00,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:03:00,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:03:00,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:03:00,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:03:00,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:03:00,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:03:00,120 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:03:00,121 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_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1c81112da7426f28a4c2690555e17bdc3cfadcaf288b3cb23a3bbf0c5e9fe6 [2021-10-28 09:03:00,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:03:00,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:03:00,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:03:00,511 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:03:00,512 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:03:00,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2021-10-28 09:03:00,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/data/ab80af2bd/0d11cec46fac4fdfb786118ceca0392e/FLAG33aaefb0b [2021-10-28 09:03:01,296 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:03:01,301 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2021-10-28 09:03:01,317 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/data/ab80af2bd/0d11cec46fac4fdfb786118ceca0392e/FLAG33aaefb0b [2021-10-28 09:03:01,550 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/data/ab80af2bd/0d11cec46fac4fdfb786118ceca0392e [2021-10-28 09:03:01,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:03:01,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:03:01,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:03:01,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:03:01,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:03:01,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:03:01" (1/1) ... [2021-10-28 09:03:01,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2795f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:01, skipping insertion in model container [2021-10-28 09:03:01,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:03:01" (1/1) ... [2021-10-28 09:03:01,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:03:01,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:03:01,944 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_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13817,13830] [2021-10-28 09:03:01,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:03:01,986 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:03:02,095 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_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13817,13830] [2021-10-28 09:03:02,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:03:02,156 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:03:02,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02 WrapperNode [2021-10-28 09:03:02,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:03:02,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:03:02,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:03:02,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:03:02,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:03:02,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:03:02,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:03:02,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:03:02,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:03:02,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:03:02,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:03:02,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:03:02,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (1/1) ... [2021-10-28 09:03:02,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:03:02,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:03:02,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:03:02,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:03:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:03:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:03:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:03:02,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:03:03,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:03:03,766 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-28 09:03:03,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:03 BoogieIcfgContainer [2021-10-28 09:03:03,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:03:03,771 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:03:03,771 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:03:03,776 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:03:03,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:03:03,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:03:01" (1/3) ... [2021-10-28 09:03:03,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@715a5fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:03:03, skipping insertion in model container [2021-10-28 09:03:03,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:03:03,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:03:02" (2/3) ... [2021-10-28 09:03:03,781 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@715a5fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:03:03, skipping insertion in model container [2021-10-28 09:03:03,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:03:03,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:03" (3/3) ... [2021-10-28 09:03:03,784 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2021-10-28 09:03:03,848 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:03:03,849 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:03:03,849 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:03:03,849 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:03:03,849 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:03:03,850 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:03:03,850 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:03:03,850 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:03:03,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.514018691588785) internal successors, (162), 107 states have internal predecessors, (162), 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 09:03:03,922 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-28 09:03:03,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:03,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:03,933 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:03:03,933 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:03,934 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:03:03,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.514018691588785) internal successors, (162), 107 states have internal predecessors, (162), 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 09:03:03,957 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-28 09:03:03,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:03,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:03,959 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:03:03,960 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:03,972 INFO L791 eck$LassoCheckResult]: Stem: 101#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string52.base, #t~string52.offset, 1);call write~init~int(80, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(117, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(109, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(112, #t~string52.base, 4 + #t~string52.offset, 1);call write~init~int(58, #t~string52.base, 5 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 6 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string58.base, #t~string58.offset, 1);call write~init~int(32, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string60.base, #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 1 + #t~string60.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 35#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 83#L926true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 81#L934true main_#t~ret76 := valid_product_#res;main_~tmp~7 := main_#t~ret76;havoc main_#t~ret76; 108#L856true assume 0 != main_~tmp~7; 93#L830true havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 106#L885-1true [2021-10-28 09:03:03,973 INFO L793 eck$LassoCheckResult]: Loop: 106#L885-1true assume !false; 46#L627true assume test_~splverifierCounter~0 < 4; 44#L628true test_~tmp~6 := test_#t~nondet62;havoc test_#t~nondet62; 79#L636true assume !(0 != test_~tmp~6); 23#L636-1true test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 72#L646true assume !(0 != test_~tmp___0~1); 29#L646-1true test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 84#L656true assume 0 != test_~tmp___2~0; 48#L662-2true assume !(0 != ~pumpRunning~0); 60#L433true assume !(0 != ~systemActive~0); 88#L440true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 65#L725-1true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 74#L879true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 106#L885-1true [2021-10-28 09:03:03,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:03,980 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 09:03:03,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:03,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203762160] [2021-10-28 09:03:03,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:03,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:04,342 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:04,472 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:04,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:04,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1680298507, now seen corresponding path program 1 times [2021-10-28 09:03:04,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:04,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805982443] [2021-10-28 09:03:04,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:04,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:04,498 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:04,515 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:04,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:04,518 INFO L85 PathProgramCache]: Analyzing trace with hash 33980431, now seen corresponding path program 1 times [2021-10-28 09:03:04,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:04,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682469768] [2021-10-28 09:03:04,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:04,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:04,667 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 09:03:04,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:04,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682469768] [2021-10-28 09:03:04,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682469768] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:03:04,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:03:04,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:03:04,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932056872] [2021-10-28 09:03:04,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:04,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:03:04,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:03:04,797 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.514018691588785) internal successors, (162), 107 states have internal predecessors, (162), 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 09:03:04,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:04,963 INFO L93 Difference]: Finished difference Result 108 states and 151 transitions. [2021-10-28 09:03:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:03:04,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 151 transitions. [2021-10-28 09:03:04,968 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-10-28 09:03:04,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 144 transitions. [2021-10-28 09:03:04,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2021-10-28 09:03:04,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2021-10-28 09:03:04,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 144 transitions. [2021-10-28 09:03:04,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:03:04,977 INFO L681 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2021-10-28 09:03:04,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 144 transitions. [2021-10-28 09:03:05,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-10-28 09:03:05,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.4257425742574257) internal successors, (144), 100 states have internal predecessors, (144), 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 09:03:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2021-10-28 09:03:05,012 INFO L704 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2021-10-28 09:03:05,012 INFO L587 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2021-10-28 09:03:05,012 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:03:05,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 144 transitions. [2021-10-28 09:03:05,013 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-10-28 09:03:05,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:05,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:05,014 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:03:05,015 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:05,015 INFO L791 eck$LassoCheckResult]: Stem: 334#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string52.base, #t~string52.offset, 1);call write~init~int(80, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(117, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(109, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(112, #t~string52.base, 4 + #t~string52.offset, 1);call write~init~int(58, #t~string52.base, 5 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 6 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string58.base, #t~string58.offset, 1);call write~init~int(32, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string60.base, #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 1 + #t~string60.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 288#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 289#L926 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 328#L934 main_#t~ret76 := valid_product_#res;main_~tmp~7 := main_#t~ret76;havoc main_#t~ret76; 329#L856 assume 0 != main_~tmp~7; 331#L830 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 251#L885-1 [2021-10-28 09:03:05,015 INFO L793 eck$LassoCheckResult]: Loop: 251#L885-1 assume !false; 305#L627 assume test_~splverifierCounter~0 < 4; 302#L628 test_~tmp~6 := test_#t~nondet62;havoc test_#t~nondet62; 303#L636 assume !(0 != test_~tmp~6); 270#L636-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 271#L646 assume !(0 != test_~tmp___0~1); 278#L646-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 279#L656 assume 0 != test_~tmp___2~0; 298#L662-2 assume !(0 != ~pumpRunning~0); 308#L433 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret43, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 238#L491 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret42, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 240#L465-1 assume !(0 != ~pumpRunning~0); 257#L440 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 322#L725-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 323#L879 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 251#L885-1 [2021-10-28 09:03:05,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:05,016 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 09:03:05,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:05,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449511474] [2021-10-28 09:03:05,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:05,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,064 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,126 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:05,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:05,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2008522617, now seen corresponding path program 1 times [2021-10-28 09:03:05,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:05,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537010091] [2021-10-28 09:03:05,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:05,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,135 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,143 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:05,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:05,144 INFO L85 PathProgramCache]: Analyzing trace with hash 441062433, now seen corresponding path program 1 times [2021-10-28 09:03:05,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:05,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792020309] [2021-10-28 09:03:05,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:05,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:03:05,234 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 09:03:05,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:03:05,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792020309] [2021-10-28 09:03:05,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792020309] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:03:05,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:03:05,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:03:05,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240257717] [2021-10-28 09:03:05,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:03:05,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:03:05,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:03:05,355 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. cyclomatic complexity: 45 Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 09:03:05,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:03:05,535 INFO L93 Difference]: Finished difference Result 355 states and 516 transitions. [2021-10-28 09:03:05,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:03:05,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 516 transitions. [2021-10-28 09:03:05,541 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 241 [2021-10-28 09:03:05,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 355 states and 516 transitions. [2021-10-28 09:03:05,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 355 [2021-10-28 09:03:05,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2021-10-28 09:03:05,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 355 states and 516 transitions. [2021-10-28 09:03:05,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:03:05,565 INFO L681 BuchiCegarLoop]: Abstraction has 355 states and 516 transitions. [2021-10-28 09:03:05,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states and 516 transitions. [2021-10-28 09:03:05,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 196. [2021-10-28 09:03:05,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 196 states have (on average 1.4183673469387754) internal successors, (278), 195 states have internal predecessors, (278), 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 09:03:05,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 278 transitions. [2021-10-28 09:03:05,592 INFO L704 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2021-10-28 09:03:05,592 INFO L587 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2021-10-28 09:03:05,592 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:03:05,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 278 transitions. [2021-10-28 09:03:05,596 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2021-10-28 09:03:05,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:03:05,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:03:05,598 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:03:05,598 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:03:05,598 INFO L791 eck$LassoCheckResult]: Stem: 829#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string52.base, #t~string52.offset, 1);call write~init~int(80, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(117, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(109, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(112, #t~string52.base, 4 + #t~string52.offset, 1);call write~init~int(58, #t~string52.base, 5 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 6 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string58.base, #t~string58.offset, 1);call write~init~int(32, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string60.base, #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 1 + #t~string60.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 765#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~7;havoc main_~retValue_acc~9;havoc main_~tmp~7; 766#L926 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 814#L934 main_#t~ret76 := valid_product_#res;main_~tmp~7 := main_#t~ret76;havoc main_#t~ret76; 815#L856 assume 0 != main_~tmp~7; 824#L830 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 726#L885-1 [2021-10-28 09:03:05,598 INFO L793 eck$LassoCheckResult]: Loop: 726#L885-1 assume !false; 785#L627 assume test_~splverifierCounter~0 < 4; 786#L628 test_~tmp~6 := test_#t~nondet62;havoc test_#t~nondet62; 874#L636 assume !(0 != test_~tmp~6); 872#L636-1 test_~tmp___0~1 := test_#t~nondet63;havoc test_#t~nondet63; 871#L646 assume !(0 != test_~tmp___0~1); 870#L646-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 869#L656 assume 0 != test_~tmp___2~0; 866#L662-2 assume !(0 != ~pumpRunning~0); 801#L433 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret43, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 712#L491 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret42, processEnvironment__wrappee__lowWaterSensor_~tmp~3;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3; 714#L465-1 assume !(0 != ~pumpRunning~0); 732#L440 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 821#L725-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 810#L879 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 811#L757 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 789#L885 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 726#L885-1 [2021-10-28 09:03:05,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:05,604 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 09:03:05,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:05,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895392935] [2021-10-28 09:03:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:05,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,671 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,764 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:05,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1749911687, now seen corresponding path program 1 times [2021-10-28 09:03:05,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:05,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690517477] [2021-10-28 09:03:05,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:05,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,777 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:03:05,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:03:05,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1340756845, now seen corresponding path program 1 times [2021-10-28 09:03:05,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:03:05,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443589093] [2021-10-28 09:03:05,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:03:05,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:03:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,828 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:03:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:03:05,910 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:04:12,148 WARN L207 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 09:05:17,236 WARN L207 SmtUtils]: Spent 32.33 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 09:05:17,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:05:17 BoogieIcfgContainer [2021-10-28 09:05:17,403 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:05:17,404 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:05:17,404 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:05:17,404 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:05:17,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:03:03" (3/4) ... [2021-10-28 09:05:17,406 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:05:17,459 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:05:17,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:05:17,461 INFO L168 Benchmark]: Toolchain (without parser) took 135904.72 ms. Allocated memory was 94.4 MB in the beginning and 151.0 MB in the end (delta: 56.6 MB). Free memory was 58.7 MB in the beginning and 52.4 MB in the end (delta: 6.2 MB). Peak memory consumption was 61.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:17,461 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 65.4 MB in the beginning and 65.4 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:05:17,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.23 ms. Allocated memory is still 94.4 MB. Free memory was 58.5 MB in the beginning and 61.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:17,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.37 ms. Allocated memory is still 94.4 MB. Free memory was 61.4 MB in the beginning and 57.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:17,463 INFO L168 Benchmark]: Boogie Preprocessor took 86.03 ms. Allocated memory is still 94.4 MB. Free memory was 57.7 MB in the beginning and 55.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:17,464 INFO L168 Benchmark]: RCFGBuilder took 1401.21 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 55.2 MB in the beginning and 76.7 MB in the end (delta: -21.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:17,465 INFO L168 Benchmark]: BuchiAutomizer took 133632.53 ms. Allocated memory was 123.7 MB in the beginning and 151.0 MB in the end (delta: 27.3 MB). Free memory was 76.7 MB in the beginning and 54.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:17,465 INFO L168 Benchmark]: Witness Printer took 56.01 ms. Allocated memory is still 151.0 MB. Free memory was 54.5 MB in the beginning and 52.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:05:17,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 65.4 MB in the beginning and 65.4 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 599.23 ms. Allocated memory is still 94.4 MB. Free memory was 58.5 MB in the beginning and 61.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.37 ms. Allocated memory is still 94.4 MB. Free memory was 61.4 MB in the beginning and 57.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.03 ms. Allocated memory is still 94.4 MB. Free memory was 57.7 MB in the beginning and 55.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1401.21 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 55.2 MB in the beginning and 76.7 MB in the end (delta: -21.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 133632.53 ms. Allocated memory was 123.7 MB in the beginning and 151.0 MB in the end (delta: 27.3 MB). Free memory was 76.7 MB in the beginning and 54.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB. * Witness Printer took 56.01 ms. Allocated memory is still 151.0 MB. Free memory was 54.5 MB in the beginning and 52.4 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 196 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 133.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 132.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 159 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 196 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 346 SDtfs, 982 SDslu, 606 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 626]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9534} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10ad138f=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@768180c9=0, NULL=9534, NULL=9537, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ca1d4c3=0, NULL=9554, NULL=0, NULL=9548, retValue_acc=0, NULL=9546, methaneLevelCritical=0, NULL=9552, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70131f6=0, NULL=0, tmp=0, tmp=0, NULL=0, tmp___1=0, NULL=9542, NULL=0, NULL=0, NULL=9541, NULL=9547, NULL=9544, cleanupTimeShifts=4, NULL=9559, NULL=9558, NULL=9550, tmp=0, tmp___0=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57b6246b=0, NULL=0, systemActive=1, waterLevel=1, NULL=9549, \result=1, NULL=0, NULL=0, NULL=9551, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=9543, NULL=0, NULL=0, NULL=9538, \result=1, head=0, pumpRunning=0, \result=0, NULL=9561, NULL=0, NULL=0, tmp=1, NULL=0, NULL=9555, NULL=9539, NULL=9560, NULL=0, NULL=9540, NULL=0, NULL=9535, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ec4a24=0, retValue_acc=1, tmp___2=78, NULL=0, NULL=9562, tmp___0=0, NULL=9556, splverifierCounter=0, NULL=0, \result=0, NULL=9553, NULL=9557, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d6b353d=0, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79951b83=78, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ee2f156=0, NULL=9536, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f6af80f=0, NULL=0, NULL=0, NULL=9545, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L425] int pumpRunning = 0; [L426] int systemActive = 1; [L682] int waterLevel = 1; [L683] int methaneLevelCritical = 0; [L771] int cleanupTimeShifts = 4; [L847] int retValue_acc ; [L848] int tmp ; [L930] int retValue_acc ; [L933] retValue_acc = 1 [L934] return (retValue_acc); [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 Loop: [L626] COND TRUE 1 [L628] COND TRUE splverifierCounter < 4 [L634] tmp = __VERIFIER_nondet_int() [L636] COND FALSE !(\read(tmp)) [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND TRUE \read(tmp___2) [L433] COND FALSE !(\read(pumpRunning)) [L440] COND TRUE \read(systemActive) [L488] int tmp ; [L491] COND FALSE !(\read(pumpRunning)) [L462] int tmp ; [L465] COND FALSE !(\read(pumpRunning)) [L871] int tmp ; [L872] int tmp___0 ; [L873] int tmp___1 ; [L721] int retValue_acc ; [L724] retValue_acc = methaneLevelCritical [L725] return (retValue_acc); [L877] tmp = isMethaneLevelCritical() [L879] COND FALSE !(\read(tmp)) [L753] int retValue_acc ; [L756] retValue_acc = waterLevel [L757] return (retValue_acc); [L883] tmp___0 = getWaterLevel() [L885] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:05:17,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c6bd2d-5ed2-4c9e-9381-78f1ee9537ed/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...