./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.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_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/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_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/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_af55ee21-1cd9-4765-bfc0-e737e961aa6f/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 c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 09:54:35,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:54:35,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:54:35,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:54:35,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:54:35,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:54:35,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:54:35,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:54:35,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:54:35,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:54:35,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:54:35,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:54:35,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:54:35,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:54:35,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:54:35,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:54:35,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:54:35,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:54:35,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:54:35,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:54:35,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:54:35,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:54:35,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:54:35,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:54:35,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:54:35,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:54:35,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:54:35,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:54:35,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:54:35,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:54:35,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:54:35,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:54:35,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:54:35,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:54:35,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:54:35,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:54:35,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:54:35,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:54:35,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:54:35,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:54:35,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:54:35,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:54:35,720 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:54:35,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:54:35,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:54:35,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:54:35,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:54:35,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:54:35,725 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:54:35,725 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:54:35,725 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:54:35,726 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:54:35,727 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:54:35,728 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:54:35,728 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:54:35,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:54:35,729 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:54:35,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:54:35,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:54:35,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:54:35,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:54:35,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:54:35,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:54:35,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:54:35,731 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:54:35,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:54:35,731 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:54:35,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:54:35,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:54:35,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:54:35,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:54:35,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:54:35,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:54:35,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:54:35,737 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:54:35,738 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_af55ee21-1cd9-4765-bfc0-e737e961aa6f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 [2021-10-28 09:54:36,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:54:36,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:54:36,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:54:36,117 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:54:36,119 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:54:36,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2021-10-28 09:54:36,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/data/55607c380/c07ccb8c3e4440cb8c3627ef123f36c8/FLAG041838455 [2021-10-28 09:54:36,912 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:54:36,913 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2021-10-28 09:54:36,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/data/55607c380/c07ccb8c3e4440cb8c3627ef123f36c8/FLAG041838455 [2021-10-28 09:54:37,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/data/55607c380/c07ccb8c3e4440cb8c3627ef123f36c8 [2021-10-28 09:54:37,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:54:37,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:54:37,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:37,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:54:37,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:54:37,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:37,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd86bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37, skipping insertion in model container [2021-10-28 09:54:37,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:37,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:54:37,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:54:37,482 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_af55ee21-1cd9-4765-bfc0-e737e961aa6f/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c[1605,1618] [2021-10-28 09:54:37,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:37,649 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:54:37,683 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_af55ee21-1cd9-4765-bfc0-e737e961aa6f/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c[1605,1618] [2021-10-28 09:54:37,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:54:37,870 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:54:37,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37 WrapperNode [2021-10-28 09:54:37,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:54:37,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:54:37,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:54:37,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:54:37,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:37,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:38,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:54:38,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:54:38,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:54:38,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:54:38,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:38,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:38,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:38,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:38,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:38,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:38,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:38,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:54:38,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:54:38,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:54:38,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:54:38,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (1/1) ... [2021-10-28 09:54:38,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:54:38,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:54:38,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:54:38,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:54:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:54:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:54:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:54:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:54:39,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:54:39,892 INFO L299 CfgBuilder]: Removed 354 assume(true) statements. [2021-10-28 09:54:39,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:39 BoogieIcfgContainer [2021-10-28 09:54:39,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:54:39,897 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:54:39,897 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:54:39,904 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:54:39,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:54:39,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:54:37" (1/3) ... [2021-10-28 09:54:39,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dfd17d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:54:39, skipping insertion in model container [2021-10-28 09:54:39,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:54:39,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:54:37" (2/3) ... [2021-10-28 09:54:39,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dfd17d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:54:39, skipping insertion in model container [2021-10-28 09:54:39,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:54:39,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:39" (3/3) ... [2021-10-28 09:54:39,912 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product64.cil.c [2021-10-28 09:54:39,987 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:54:39,988 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:54:39,988 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:54:39,988 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:54:39,988 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:54:39,988 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:54:39,989 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:54:39,989 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:54:40,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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 09:54:40,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-10-28 09:54:40,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:40,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:40,096 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:54:40,097 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:40,097 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:54:40,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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 09:54:40,119 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-10-28 09:54:40,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:40,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:40,127 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:54:40,127 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:40,140 INFO L791 eck$LassoCheckResult]: Stem: 214#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 170#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 115#L84true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 109#L92true main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 176#L578true assume 0 != main_~tmp~4; 226#L554true havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 116#L107-1true [2021-10-28 09:54:40,141 INFO L793 eck$LassoCheckResult]: Loop: 116#L107-1true assume !false; 6#L978true assume test_~splverifierCounter~0 < 4; 114#L979true test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 78#L987true assume !(0 != test_~tmp~11); 120#L987-1true test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 200#L997true assume !(0 != test_~tmp___0~3); 81#L997-1true test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 63#L1007true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 62#L1015-1true assume !(0 != ~pumpRunning~0); 30#L607true assume !(0 != ~systemActive~0); 166#L614true havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 220#L907-5true __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 121#L107true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 116#L107-1true [2021-10-28 09:54:40,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:40,150 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 09:54:40,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:40,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658127533] [2021-10-28 09:54:40,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:40,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:40,517 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:40,747 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:40,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:40,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1665583732, now seen corresponding path program 1 times [2021-10-28 09:54:40,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:40,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283194667] [2021-10-28 09:54:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:40,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:40,872 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 09:54:40,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:40,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283194667] [2021-10-28 09:54:40,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283194667] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:40,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:40,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:54:40,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111762943] [2021-10-28 09:54:40,881 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:54:40,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:40,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:54:40,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:54:40,905 INFO L87 Difference]: Start difference. First operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 09:54:41,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:41,011 INFO L93 Difference]: Finished difference Result 442 states and 648 transitions. [2021-10-28 09:54:41,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:54:41,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 648 transitions. [2021-10-28 09:54:41,038 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 290 [2021-10-28 09:54:41,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 428 states and 633 transitions. [2021-10-28 09:54:41,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 428 [2021-10-28 09:54:41,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 428 [2021-10-28 09:54:41,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 428 states and 633 transitions. [2021-10-28 09:54:41,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:41,060 INFO L681 BuchiCegarLoop]: Abstraction has 428 states and 633 transitions. [2021-10-28 09:54:41,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states and 633 transitions. [2021-10-28 09:54:41,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2021-10-28 09:54:41,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 426 states have (on average 1.4788732394366197) internal successors, (630), 425 states have internal predecessors, (630), 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 09:54:41,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 630 transitions. [2021-10-28 09:54:41,137 INFO L704 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2021-10-28 09:54:41,137 INFO L587 BuchiCegarLoop]: Abstraction has 426 states and 630 transitions. [2021-10-28 09:54:41,138 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:54:41,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 426 states and 630 transitions. [2021-10-28 09:54:41,146 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 288 [2021-10-28 09:54:41,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:41,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:41,150 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:54:41,150 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:41,151 INFO L791 eck$LassoCheckResult]: Stem: 915#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 890#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 846#L84 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 841#L92 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 842#L578 assume 0 != main_~tmp~4; 896#L554 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 919#L107-1 [2021-10-28 09:54:41,153 INFO L793 eck$LassoCheckResult]: Loop: 919#L107-1 assume !false; 995#L978 assume test_~splverifierCounter~0 < 4; 996#L979 test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 1059#L987 assume !(0 != test_~tmp~11); 1057#L987-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 1056#L997 assume !(0 != test_~tmp___0~3); 1054#L997-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 1053#L1007 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 789#L1015-1 assume !(0 != ~pumpRunning~0); 1050#L607 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1047#L691 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret47, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 1046#L665-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1006#L639-3 assume !(0 == ~pumpRunning~0); 1001#L614 havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1000#L907-5 __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 998#L107 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 919#L107-1 [2021-10-28 09:54:41,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:41,161 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 09:54:41,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:41,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372544229] [2021-10-28 09:54:41,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:41,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:41,285 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:41,403 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:41,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:41,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1220566465, now seen corresponding path program 1 times [2021-10-28 09:54:41,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:41,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561590597] [2021-10-28 09:54:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:41,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:41,443 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 09:54:41,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:54:41,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561590597] [2021-10-28 09:54:41,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561590597] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:41,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:41,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:54:41,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376228906] [2021-10-28 09:54:41,452 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:54:41,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:54:41,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:54:41,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:54:41,455 INFO L87 Difference]: Start difference. First operand 426 states and 630 transitions. cyclomatic complexity: 207 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 09:54:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:41,654 INFO L93 Difference]: Finished difference Result 419 states and 586 transitions. [2021-10-28 09:54:41,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:54:41,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 419 states and 586 transitions. [2021-10-28 09:54:41,663 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2021-10-28 09:54:41,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 419 states to 419 states and 586 transitions. [2021-10-28 09:54:41,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2021-10-28 09:54:41,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2021-10-28 09:54:41,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 586 transitions. [2021-10-28 09:54:41,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:54:41,681 INFO L681 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2021-10-28 09:54:41,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 586 transitions. [2021-10-28 09:54:41,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2021-10-28 09:54:41,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 419 states have (on average 1.3985680190930787) internal successors, (586), 418 states have internal predecessors, (586), 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 09:54:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 586 transitions. [2021-10-28 09:54:41,716 INFO L704 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2021-10-28 09:54:41,717 INFO L587 BuchiCegarLoop]: Abstraction has 419 states and 586 transitions. [2021-10-28 09:54:41,717 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:54:41,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 419 states and 586 transitions. [2021-10-28 09:54:41,727 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 291 [2021-10-28 09:54:41,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:54:41,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:54:41,729 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:54:41,731 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:41,731 INFO L791 eck$LassoCheckResult]: Stem: 1722#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1639#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 1640#L84 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1720#L92 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 1651#L578 assume 0 != main_~tmp~4; 1652#L554 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~11, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~11;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1730#L107-1 [2021-10-28 09:54:41,732 INFO L793 eck$LassoCheckResult]: Loop: 1730#L107-1 assume !false; 1773#L978 assume test_~splverifierCounter~0 < 4; 1772#L979 test_~tmp~11 := test_#t~nondet79;havoc test_#t~nondet79; 1770#L987 assume !(0 != test_~tmp~11); 1726#L987-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 1687#L997 assume !(0 != test_~tmp___0~3); 1608#L997-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 1688#L1007 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1539#L1015-1 assume !(0 != ~pumpRunning~0); 1609#L607 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1610#L691 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret47, processEnvironment__wrappee__methaneQuery_~tmp~6;havoc processEnvironment__wrappee__methaneQuery_~tmp~6; 1809#L665-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1808#L639-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1807#L947-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1805#L952-3 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 1803#L810-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~1 := 0; 1801#L810-11 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1799#L816-3 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 1782#L643-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1759#L614 havoc __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_#t~ret9, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1760#L907-5 __utac_acc__Specification1_spec__1_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret8;havoc __utac_acc__Specification1_spec__1_#t~ret8; 1753#L107 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 1730#L107-1 [2021-10-28 09:54:41,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:41,733 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 09:54:41,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:41,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782152446] [2021-10-28 09:54:41,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:41,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:41,805 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:41,890 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:41,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:41,891 INFO L85 PathProgramCache]: Analyzing trace with hash -231328531, now seen corresponding path program 1 times [2021-10-28 09:54:41,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:41,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186112102] [2021-10-28 09:54:41,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:41,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:41,899 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:41,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:54:41,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:41,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1021976595, now seen corresponding path program 1 times [2021-10-28 09:54:41,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:54:41,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508792051] [2021-10-28 09:54:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:41,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:54:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:41,996 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:42,075 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:55:59,609 WARN L207 SmtUtils]: Spent 1.29 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 09:57:11,439 WARN L207 SmtUtils]: Spent 34.31 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 09:57:11,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:57:11 BoogieIcfgContainer [2021-10-28 09:57:11,564 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:57:11,565 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:57:11,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:57:11,569 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:57:11,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:54:39" (3/4) ... [2021-10-28 09:57:11,575 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:57:11,640 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:57:11,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:57:11,642 INFO L168 Benchmark]: Toolchain (without parser) took 154466.00 ms. Allocated memory was 98.6 MB in the beginning and 148.9 MB in the end (delta: 50.3 MB). Free memory was 62.3 MB in the beginning and 50.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:11,642 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 71.4 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:57:11,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.49 ms. Allocated memory is still 98.6 MB. Free memory was 62.1 MB in the beginning and 65.3 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:11,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.30 ms. Allocated memory is still 98.6 MB. Free memory was 65.3 MB in the beginning and 60.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:11,644 INFO L168 Benchmark]: Boogie Preprocessor took 115.75 ms. Allocated memory is still 98.6 MB. Free memory was 60.0 MB in the beginning and 55.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:11,645 INFO L168 Benchmark]: RCFGBuilder took 1767.21 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 55.8 MB in the beginning and 62.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:11,646 INFO L168 Benchmark]: BuchiAutomizer took 151667.23 ms. Allocated memory was 121.6 MB in the beginning and 148.9 MB in the end (delta: 27.3 MB). Free memory was 62.1 MB in the beginning and 52.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:11,646 INFO L168 Benchmark]: Witness Printer took 75.56 ms. Allocated memory is still 148.9 MB. Free memory was 52.5 MB in the beginning and 50.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:57:11,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 71.4 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 687.49 ms. Allocated memory is still 98.6 MB. Free memory was 62.1 MB in the beginning and 65.3 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 136.30 ms. Allocated memory is still 98.6 MB. Free memory was 65.3 MB in the beginning and 60.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.75 ms. Allocated memory is still 98.6 MB. Free memory was 60.0 MB in the beginning and 55.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1767.21 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 55.8 MB in the beginning and 62.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 151667.23 ms. Allocated memory was 121.6 MB in the beginning and 148.9 MB in the end (delta: 27.3 MB). Free memory was 62.1 MB in the beginning and 52.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 52.2 MB. Max. memory is 16.1 GB. * Witness Printer took 75.56 ms. Allocated memory is still 148.9 MB. Free memory was 52.5 MB in the beginning and 50.4 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 3 locations. The remainder module has 419 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 151.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 150.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 426 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 553 SDtfs, 496 SDslu, 392 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 977]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8856} State at position 1 is {NULL=0, NULL=0, NULL=8856, NULL=0, NULL=0, NULL=0, NULL=8876, methaneLevelCritical=0, NULL=8862, retValue_acc=0, tmp___1=0, NULL=8865, NULL=0, NULL=8870, cleanupTimeShifts=4, NULL=8868, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6acd7a51=0, waterLevel=1, NULL=0, NULL=0, NULL=8871, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e3cfc10=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c9ee2d=0, NULL=8880, \result=1, head=0, pumpRunning=0, NULL=8881, tmp=1, NULL=0, NULL=0, tmp=0, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=8860, tmp=1, NULL=8882, head=0, NULL=0, NULL=8864, tmp=0, NULL=0, NULL=0, NULL=0, NULL=8878, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@579fae18=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@139ac0c7=0, NULL=8869, NULL=8877, NULL=8884, NULL=8883, tmp___0=0, NULL=8879, NULL=8866, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c243559=0, NULL=0, tmp___0=0, NULL=8861, NULL=8867, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1857d79b=0, NULL=0, NULL=0, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4eb3c0ee=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51433566=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32c3b509=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=8857, \result=0, NULL=8874, NULL=8875, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5530822e=0, NULL=8858, retValue_acc=1, retValue_acc=1, tmp___2=64, tmp=0, splverifierCounter=0, NULL=0, \result=0, NULL=8859, NULL=8863, NULL=8872, NULL=8873} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L294] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int cleanupTimeShifts = 4; [L600] int pumpRunning = 0; [L601] int systemActive = 1; [L864] int waterLevel = 1; [L865] int methaneLevelCritical = 0; [L569] int retValue_acc ; [L570] int tmp ; [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L576] tmp = valid_product() [L578] COND TRUE \read(tmp) [L968] int splverifierCounter ; [L969] int tmp ; [L970] int tmp___0 ; [L971] int tmp___1 ; [L972] int tmp___2 ; [L975] splverifierCounter = 0 Loop: [L977] COND TRUE 1 [L979] COND TRUE splverifierCounter < 4 [L985] tmp = __VERIFIER_nondet_int() [L987] COND FALSE !(\read(tmp)) [L995] tmp___0 = __VERIFIER_nondet_int() [L997] COND FALSE !(\read(tmp___0)) [L1005] tmp___2 = __VERIFIER_nondet_int() [L1007] COND TRUE \read(tmp___2) [L858] systemActive = 1 [L607] COND FALSE !(\read(pumpRunning)) [L614] COND TRUE \read(systemActive) [L688] int tmp ; [L691] COND FALSE !(\read(pumpRunning)) [L662] int tmp ; [L665] COND FALSE !(\read(pumpRunning)) [L636] int tmp ; [L639] COND TRUE ! pumpRunning [L802] int retValue_acc ; [L803] int tmp ; [L804] int tmp___0 ; [L944] int retValue_acc ; [L947] COND TRUE waterLevel < 2 [L948] retValue_acc = 1 [L949] return (retValue_acc); [L808] tmp = isHighWaterSensorDry() [L810] COND TRUE \read(tmp) [L811] tmp___0 = 0 [L815] retValue_acc = tmp___0 [L816] return (retValue_acc); [L641] tmp = isHighWaterLevel() [L643] COND FALSE !(\read(tmp)) [L100] int tmp ; [L101] int tmp___0 ; [L903] int retValue_acc ; [L906] retValue_acc = methaneLevelCritical [L907] return (retValue_acc); [L105] tmp = isMethaneLevelCritical() [L107] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:57:11,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af55ee21-1cd9-4765-bfc0-e737e961aa6f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...