./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2c09c553453ff5cc1c780de43f9253f29851703b462741b40e69cde342fa216 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:54:04,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:54:04,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:54:04,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:54:04,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:54:04,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:54:04,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:54:04,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:54:04,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:54:04,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:54:04,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:54:04,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:54:04,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:54:04,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:54:04,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:54:04,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:54:04,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:54:04,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:54:04,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:54:04,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:54:04,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:54:04,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:54:04,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:54:04,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:54:04,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:54:04,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:54:04,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:54:04,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:54:04,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:54:04,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:54:04,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:54:04,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:54:04,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:54:04,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:54:04,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:54:04,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:54:04,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:54:04,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:54:04,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:54:04,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:54:04,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:54:04,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:54:04,694 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:54:04,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:54:04,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:54:04,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:54:04,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:54:04,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:54:04,697 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:54:04,697 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:54:04,697 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:54:04,700 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:54:04,701 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:54:04,701 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:54:04,702 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:54:04,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:54:04,702 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:54:04,702 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:54:04,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:54:04,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:54:04,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:54:04,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:54:04,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:54:04,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:54:04,703 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:54:04,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:54:04,704 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:54:04,704 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:54:04,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:54:04,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:54:04,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:54:04,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:54:04,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:54:04,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:54:04,708 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:54:04,709 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_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c09c553453ff5cc1c780de43f9253f29851703b462741b40e69cde342fa216 [2021-10-21 19:54:04,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:54:05,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:54:05,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:54:05,018 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:54:05,019 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:54:05,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2021-10-21 19:54:05,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/data/1f7acc908/bbb61c1bfd7d403482729bcb7e2fde5a/FLAG7adae44ff [2021-10-21 19:54:05,748 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:54:05,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c [2021-10-21 19:54:05,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/data/1f7acc908/bbb61c1bfd7d403482729bcb7e2fde5a/FLAG7adae44ff [2021-10-21 19:54:06,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/data/1f7acc908/bbb61c1bfd7d403482729bcb7e2fde5a [2021-10-21 19:54:06,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:54:06,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:54:06,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:54:06,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:54:06,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:54:06,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b89547d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06, skipping insertion in model container [2021-10-21 19:54:06,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:54:06,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:54:06,433 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_2ba05d1f-c00e-4c99-b087-a8c656dcf525/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c[17711,17724] [2021-10-21 19:54:06,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:54:06,449 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:54:06,534 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_2ba05d1f-c00e-4c99-b087-a8c656dcf525/sv-benchmarks/c/product-lines/minepump_spec5_product06.cil.c[17711,17724] [2021-10-21 19:54:06,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:54:06,563 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:54:06,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06 WrapperNode [2021-10-21 19:54:06,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:54:06,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:54:06,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:54:06,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:54:06,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:54:06,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:54:06,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:54:06,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:54:06,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:54:06,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:54:06,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:54:06,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:54:06,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (1/1) ... [2021-10-21 19:54:06,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:06,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:06,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:06,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:54:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:54:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:54:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:54:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:54:07,810 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:54:07,810 INFO L299 CfgBuilder]: Removed 112 assume(true) statements. [2021-10-21 19:54:07,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:54:07 BoogieIcfgContainer [2021-10-21 19:54:07,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:54:07,814 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:54:07,814 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:54:07,818 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:54:07,819 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:54:07,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:54:06" (1/3) ... [2021-10-21 19:54:07,821 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14d3f649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:54:07, skipping insertion in model container [2021-10-21 19:54:07,821 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:54:07,822 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:06" (2/3) ... [2021-10-21 19:54:07,822 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14d3f649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:54:07, skipping insertion in model container [2021-10-21 19:54:07,822 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:54:07,822 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:54:07" (3/3) ... [2021-10-21 19:54:07,824 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product06.cil.c [2021-10-21 19:54:07,872 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:54:07,872 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:54:07,872 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:54:07,872 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:54:07,872 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:54:07,872 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:54:07,872 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:54:07,872 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:54:07,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:07,913 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-21 19:54:07,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:07,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:07,920 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:07,921 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:07,921 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:54:07,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:07,927 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-21 19:54:07,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:07,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:07,929 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:07,929 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:07,934 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 47#L-1true havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 16#L161true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 69#L169true main_#t~ret40 := valid_product_#res;main_~tmp~2 := main_#t~ret40;havoc main_#t~ret40; 72#L478true assume 0 != main_~tmp~2; 51#L453true ~switchedOnBeforeTS~0 := 0; 54#L499true havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 21#L520-1true [2021-10-21 19:54:07,935 INFO L793 eck$LassoCheckResult]: Loop: 21#L520-1true assume !false; 26#L188true assume test_~splverifierCounter~0 < 4; 30#L189true test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 12#L197true assume !(0 != test_~tmp~0); 15#L197-1true test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 8#L207true assume !(0 != test_~tmp___0~0); 41#L207-1true test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 31#L217true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 70#L225-2true havoc __utac_acc__Specification5_spec__2_#t~ret41;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 67#L345true __utac_acc__Specification5_spec__2_#t~ret41 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret41;havoc __utac_acc__Specification5_spec__2_#t~ret41; 60#L509true assume !(0 != ~pumpRunning~0); 76#L260true assume !(0 != ~systemActive~0); 33#L267true havoc __utac_acc__Specification5_spec__3_#t~ret42, __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 52#L131true __utac_acc__Specification5_spec__3_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret42;havoc __utac_acc__Specification5_spec__3_#t~ret42; 48#L520true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 21#L520-1true [2021-10-21 19:54:07,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:07,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:54:07,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:07,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190246604] [2021-10-21 19:54:07,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:07,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:08,261 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:08,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:08,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:08,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1011068557, now seen corresponding path program 1 times [2021-10-21 19:54:08,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:08,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491821299] [2021-10-21 19:54:08,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:08,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:54:08,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:08,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491821299] [2021-10-21 19:54:08,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491821299] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:08,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:08,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:54:08,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232219627] [2021-10-21 19:54:08,608 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:54:08,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:08,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:54:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:54:08,631 INFO L87 Difference]: Start difference. First operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:08,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:08,686 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2021-10-21 19:54:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:54:08,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 101 transitions. [2021-10-21 19:54:08,704 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-21 19:54:08,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2021-10-21 19:54:08,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-21 19:54:08,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-21 19:54:08,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2021-10-21 19:54:08,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:54:08,715 INFO L681 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-21 19:54:08,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2021-10-21 19:54:08,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-21 19:54:08,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.3676470588235294) internal successors, (93), 67 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2021-10-21 19:54:08,755 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-21 19:54:08,755 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-21 19:54:08,755 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:54:08,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2021-10-21 19:54:08,760 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-21 19:54:08,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:08,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:08,762 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:08,762 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:08,763 INFO L791 eck$LassoCheckResult]: Stem: 224#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 213#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 180#L161 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 181#L169 main_#t~ret40 := valid_product_#res;main_~tmp~2 := main_#t~ret40;havoc main_#t~ret40; 226#L478 assume 0 != main_~tmp~2; 216#L453 ~switchedOnBeforeTS~0 := 0; 217#L499 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 160#L520-1 [2021-10-21 19:54:08,764 INFO L793 eck$LassoCheckResult]: Loop: 160#L520-1 assume !false; 189#L188 assume test_~splverifierCounter~0 < 4; 195#L189 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 172#L197 assume !(0 != test_~tmp~0); 166#L197-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 167#L207 assume !(0 != test_~tmp___0~0); 162#L207-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 199#L217 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 201#L225-2 havoc __utac_acc__Specification5_spec__2_#t~ret41;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 225#L345 __utac_acc__Specification5_spec__2_#t~ret41 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret41;havoc __utac_acc__Specification5_spec__2_#t~ret41; 219#L509 assume !(0 != ~pumpRunning~0); 220#L260 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 202#L292 assume !(0 != ~pumpRunning~0); 203#L267 havoc __utac_acc__Specification5_spec__3_#t~ret42, __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 205#L131 __utac_acc__Specification5_spec__3_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret42;havoc __utac_acc__Specification5_spec__3_#t~ret42; 214#L520 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 160#L520-1 [2021-10-21 19:54:08,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:08,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:54:08,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:08,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493451094] [2021-10-21 19:54:08,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:08,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:08,860 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:08,987 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:08,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:08,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1257825731, now seen corresponding path program 1 times [2021-10-21 19:54:08,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:08,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206796000] [2021-10-21 19:54:08,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:08,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:08,997 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:09,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:09,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:09,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1083065097, now seen corresponding path program 1 times [2021-10-21 19:54:09,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:09,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559716062] [2021-10-21 19:54:09,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:09,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:09,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:54:09,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:09,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559716062] [2021-10-21 19:54:09,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559716062] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:09,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:09,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:54:09,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974207118] [2021-10-21 19:54:09,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:09,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:54:09,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:54:09,364 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:09,524 INFO L93 Difference]: Finished difference Result 182 states and 252 transitions. [2021-10-21 19:54:09,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:54:09,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 252 transitions. [2021-10-21 19:54:09,532 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 112 [2021-10-21 19:54:09,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 182 states and 252 transitions. [2021-10-21 19:54:09,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 182 [2021-10-21 19:54:09,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2021-10-21 19:54:09,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 252 transitions. [2021-10-21 19:54:09,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:54:09,544 INFO L681 BuchiCegarLoop]: Abstraction has 182 states and 252 transitions. [2021-10-21 19:54:09,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 252 transitions. [2021-10-21 19:54:09,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 129. [2021-10-21 19:54:09,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.3565891472868217) internal successors, (175), 128 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 175 transitions. [2021-10-21 19:54:09,567 INFO L704 BuchiCegarLoop]: Abstraction has 129 states and 175 transitions. [2021-10-21 19:54:09,568 INFO L587 BuchiCegarLoop]: Abstraction has 129 states and 175 transitions. [2021-10-21 19:54:09,568 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:54:09,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 175 transitions. [2021-10-21 19:54:09,570 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2021-10-21 19:54:09,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:09,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:09,571 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:09,572 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:09,572 INFO L791 eck$LassoCheckResult]: Stem: 498#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 486#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~6, main_~tmp~2;havoc main_~retValue_acc~6;havoc main_~tmp~2; 445#L161 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 446#L169 main_#t~ret40 := valid_product_#res;main_~tmp~2 := main_#t~ret40;havoc main_#t~ret40; 500#L478 assume 0 != main_~tmp~2; 489#L453 ~switchedOnBeforeTS~0 := 0; 490#L499 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 426#L520-1 [2021-10-21 19:54:09,572 INFO L793 eck$LassoCheckResult]: Loop: 426#L520-1 assume !false; 454#L188 assume test_~splverifierCounter~0 < 4; 461#L189 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 467#L197 assume !(0 != test_~tmp~0); 553#L197-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 552#L207 assume !(0 != test_~tmp___0~0); 550#L207-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 549#L217 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 547#L225-2 havoc __utac_acc__Specification5_spec__2_#t~ret41;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 546#L345 __utac_acc__Specification5_spec__2_#t~ret41 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret41;havoc __utac_acc__Specification5_spec__2_#t~ret41; 545#L509 assume !(0 != ~pumpRunning~0); 501#L260 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 541#L292 assume !(0 != ~pumpRunning~0); 474#L267 havoc __utac_acc__Specification5_spec__3_#t~ret42, __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 475#L131 __utac_acc__Specification5_spec__3_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret42;havoc __utac_acc__Specification5_spec__3_#t~ret42; 487#L520 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 447#L345-1 __utac_acc__Specification5_spec__3_#t~ret43 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 448#L524 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 426#L520-1 [2021-10-21 19:54:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:09,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 19:54:09,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:09,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851657927] [2021-10-21 19:54:09,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:09,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:09,618 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:09,667 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:09,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:09,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1884702974, now seen corresponding path program 1 times [2021-10-21 19:54:09,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:09,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303577515] [2021-10-21 19:54:09,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:09,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:09,677 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:09,684 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:09,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:09,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1443458244, now seen corresponding path program 1 times [2021-10-21 19:54:09,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:09,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380142508] [2021-10-21 19:54:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:09,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:09,743 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:09,790 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:06,532 WARN L207 SmtUtils]: Spent 56.53 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:56:02,564 WARN L207 SmtUtils]: Spent 27.02 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:56:02,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:56:02 BoogieIcfgContainer [2021-10-21 19:56:02,724 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:56:02,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:56:02,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:56:02,725 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:56:02,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:54:07" (3/4) ... [2021-10-21 19:56:02,728 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:56:02,778 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:56:02,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:56:02,780 INFO L168 Benchmark]: Toolchain (without parser) took 116759.33 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 77.7 MB in the beginning and 90.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:02,781 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory was 85.1 MB in the beginning and 85.1 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:56:02,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.94 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 80.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:02,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.68 ms. Allocated memory is still 113.2 MB. Free memory was 80.3 MB in the beginning and 77.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:02,782 INFO L168 Benchmark]: Boogie Preprocessor took 35.52 ms. Allocated memory is still 113.2 MB. Free memory was 77.1 MB in the beginning and 75.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:02,783 INFO L168 Benchmark]: RCFGBuilder took 1111.83 ms. Allocated memory is still 113.2 MB. Free memory was 75.0 MB in the beginning and 87.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:02,783 INFO L168 Benchmark]: BuchiAutomizer took 114910.15 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 87.9 MB in the beginning and 92.4 MB in the end (delta: -4.5 MB). Peak memory consumption was 86.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:02,784 INFO L168 Benchmark]: Witness Printer took 54.52 ms. Allocated memory is still 136.3 MB. Free memory was 92.4 MB in the beginning and 90.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:02,787 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 113.2 MB. Free memory was 85.1 MB in the beginning and 85.1 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.94 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 80.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.68 ms. Allocated memory is still 113.2 MB. Free memory was 80.3 MB in the beginning and 77.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.52 ms. Allocated memory is still 113.2 MB. Free memory was 77.1 MB in the beginning and 75.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1111.83 ms. Allocated memory is still 113.2 MB. Free memory was 75.0 MB in the beginning and 87.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 114910.15 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 87.9 MB in the beginning and 92.4 MB in the end (delta: -4.5 MB). Peak memory consumption was 86.7 MB. Max. memory is 16.1 GB. * Witness Printer took 54.52 ms. Allocated memory is still 136.3 MB. Free memory was 92.4 MB in the beginning and 90.3 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 5 locations. The remainder module has 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 114.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 114.4s. Construction of modules took 0.0s. 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 49.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 53 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 213 SDtfs, 361 SDslu, 268 SDs, 0 SdLazy, 68 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.4ms 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: 187]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2720} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1186e5e9=0, NULL=0, NULL=0, NULL=0, NULL=2740, NULL=0, NULL=2720, NULL=2734, retValue_acc=0, NULL=2724, NULL=2722, NULL=2736, methaneLevelCritical=0, NULL=2743, NULL=2744, tmp=1, NULL=0, NULL=2728, NULL=0, NULL=0, tmp___1=0, NULL=2721, NULL=0, NULL=0, NULL=0, NULL=2733, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=2742, NULL=2737, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f31b194=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@724272ff=0, NULL=2735, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=2741, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e7effac=0, tmp___0=0, NULL=2747, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, tmp___0=0, NULL=2738, NULL=2732, tmp=1, NULL=0, NULL=0, NULL=0, NULL=2729, retValue_acc=1, NULL=2746, NULL=0, NULL=0, NULL=2731, NULL=0, NULL=0, NULL=2726, NULL=0, tmp___2=65, NULL=0, splverifierCounter=0, NULL=0, NULL=2730, NULL=2748, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b77b214=0, NULL=2745, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@121c3e84=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38937d7a=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52efc08d=65, NULL=2727, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27b7a2d0=0, NULL=0, NULL=0, NULL=2723, NULL=0, NULL=2739, NULL=2725, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L248] int pumpRunning = 0; [L249] int systemActive = 1; [L394] int cleanupTimeShifts = 4; [L493] int switchedOnBeforeTS ; [L711] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L469] int retValue_acc ; [L470] int tmp ; [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); [L476] tmp = valid_product() [L478] COND TRUE \read(tmp) [L498] switchedOnBeforeTS = 0 [L178] int splverifierCounter ; [L179] int tmp ; [L180] int tmp___0 ; [L181] int tmp___1 ; [L182] int tmp___2 ; [L185] splverifierCounter = 0 Loop: [L187] COND TRUE 1 [L189] COND TRUE splverifierCounter < 4 [L195] tmp = __VERIFIER_nondet_int() [L197] COND FALSE !(\read(tmp)) [L205] tmp___0 = __VERIFIER_nondet_int() [L207] COND FALSE !(\read(tmp___0)) [L215] tmp___2 = __VERIFIER_nondet_int() [L217] COND TRUE \read(tmp___2) [L389] systemActive = 1 [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L507] switchedOnBeforeTS = isPumpRunning() [L260] COND FALSE !(\read(pumpRunning)) [L267] COND TRUE \read(systemActive) [L289] int tmp ; [L292] COND FALSE !(\read(pumpRunning)) [L513] int tmp ; [L514] int tmp___0 ; [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L518] tmp = getWaterLevel() [L520] COND TRUE tmp != 2 [L341] int retValue_acc ; [L344] retValue_acc = pumpRunning [L345] return (retValue_acc); [L522] tmp___0 = isPumpRunning() [L524] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:56:02,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ba05d1f-c00e-4c99-b087-a8c656dcf525/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...