./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y --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 aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:52:51,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:52:51,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:52:51,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:52:51,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:52:51,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:52:51,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:52:51,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:52:51,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:52:51,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:52:51,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:52:51,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:52:51,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:52:51,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:52:51,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:52:51,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:52:51,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:52:51,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:52:51,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:52:51,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:52:51,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:52:51,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:52:51,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:52:51,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:52:51,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:52:51,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:52:51,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:52:51,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:52:51,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:52:51,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:52:51,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:52:51,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:52:51,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:52:51,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:52:51,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:52:51,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:52:51,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:52:51,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:52:51,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:52:51,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:52:51,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:52:51,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:52:51,700 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:52:51,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:52:51,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:52:51,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:52:51,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:52:51,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:52:51,704 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:52:51,704 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:52:51,705 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:52:51,705 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:52:51,706 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:52:51,706 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:52:51,706 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:52:51,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:52:51,707 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:52:51,708 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:52:51,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:52:51,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:52:51,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:52:51,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:52:51,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:52:51,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:52:51,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:52:51,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:52:51,711 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:52:51,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:52:51,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:52:51,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:52:51,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:52:51,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:52:51,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:52:51,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:52:51,715 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:52:51,715 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_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 [2021-11-13 18:52:52,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:52:52,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:52:52,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:52:52,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:52:52,091 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:52:52,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2021-11-13 18:52:52,170 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/data/94eacdb84/f2b695c4b9ab4e8495b5c7d1e020bca8/FLAGa92975929 [2021-11-13 18:52:52,791 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:52:52,792 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2021-11-13 18:52:52,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/data/94eacdb84/f2b695c4b9ab4e8495b5c7d1e020bca8/FLAGa92975929 [2021-11-13 18:52:53,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/data/94eacdb84/f2b695c4b9ab4e8495b5c7d1e020bca8 [2021-11-13 18:52:53,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:52:53,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:52:53,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:52:53,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:52:53,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:52:53,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b00a610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53, skipping insertion in model container [2021-11-13 18:52:53,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:52:53,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:52:53,465 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_5b853d45-9163-4d2e-bfc5-69df0303943a/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2021-11-13 18:52:53,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:52:53,553 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:52:53,653 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_5b853d45-9163-4d2e-bfc5-69df0303943a/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2021-11-13 18:52:53,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:52:53,774 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:52:53,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53 WrapperNode [2021-11-13 18:52:53,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:52:53,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:52:53,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:52:53,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:52:53,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:52:53,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:52:53,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:52:53,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:52:53,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:52:53,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:52:53,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:52:53,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:52:53,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (1/1) ... [2021-11-13 18:52:53,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:52:54,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:52:54,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:52:54,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:52:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:52:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:52:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:52:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:52:55,236 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:52:55,237 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:52:55,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:52:55 BoogieIcfgContainer [2021-11-13 18:52:55,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:52:55,245 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:52:55,245 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:52:55,250 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:52:55,251 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:52:55,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:52:53" (1/3) ... [2021-11-13 18:52:55,254 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1849da0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:52:55, skipping insertion in model container [2021-11-13 18:52:55,254 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:52:55,254 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:52:53" (2/3) ... [2021-11-13 18:52:55,255 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1849da0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:52:55, skipping insertion in model container [2021-11-13 18:52:55,256 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:52:55,256 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:52:55" (3/3) ... [2021-11-13 18:52:55,258 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2021-11-13 18:52:55,323 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:52:55,324 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:52:55,324 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:52:55,324 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:52:55,325 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:52:55,325 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:52:55,325 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:52:55,325 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:52:55,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.3836477987421383) internal successors, (220), 159 states have internal predecessors, (220), 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) [2021-11-13 18:52:55,386 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-11-13 18:52:55,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:52:55,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:52:55,396 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:55,396 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:55,397 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:52:55,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 160 states, 159 states have (on average 1.3836477987421383) internal successors, (220), 159 states have internal predecessors, (220), 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) [2021-11-13 18:52:55,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-11-13 18:52:55,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:52:55,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:52:55,411 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:55,412 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:55,418 INFO L791 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret78#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 140#L938true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 9#L931true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 153#L946true main_#t~ret78#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret78#1;havoc main_#t~ret78#1; 117#L902true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 17#L875true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 32#L313true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 62#L251-2true [2021-11-13 18:52:55,419 INFO L793 eck$LassoCheckResult]: Loop: 62#L251-2true assume !false; 63#L252true assume test_~splverifierCounter~0#1 < 4; 103#L253true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 161#L261true assume !(0 != test_~tmp~3#1); 60#L261-2true test_~tmp___0~1#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 38#L271true assume !(0 != test_~tmp___0~1#1); 98#L271-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 19#L281true assume 0 != test_~tmp___2~0#1; 115#L287-2true assume { :begin_inline_timeShift } true; 147#L67true assume !(0 != ~pumpRunning~0); 20#L67-2true assume !(0 != ~systemActive~0); 120#L74-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret31#1, __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 122#L390-1true __utac_acc__Specification2_spec__2_#t~ret31#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret31#1;havoc __utac_acc__Specification2_spec__2_#t~ret31#1; 21#L324true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 110#L324-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 143#L84true assume { :end_inline_timeShift } true; 62#L251-2true [2021-11-13 18:52:55,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:55,429 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-11-13 18:52:55,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:55,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585043544] [2021-11-13 18:52:55,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:55,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:55,816 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:52:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:56,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:52:56,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:56,070 INFO L85 PathProgramCache]: Analyzing trace with hash -652055670, now seen corresponding path program 1 times [2021-11-13 18:52:56,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:56,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533957386] [2021-11-13 18:52:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:56,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:56,096 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:52:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:56,126 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:52:56,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:56,128 INFO L85 PathProgramCache]: Analyzing trace with hash -814343053, now seen corresponding path program 1 times [2021-11-13 18:52:56,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:56,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530956211] [2021-11-13 18:52:56,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:56,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:56,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:52:56,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530956211] [2021-11-13 18:52:56,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530956211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:56,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:56,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:52:56,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785708130] [2021-11-13 18:52:56,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:56,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:52:56,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:52:56,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:52:56,596 INFO L87 Difference]: Start difference. First operand has 160 states, 159 states have (on average 1.3836477987421383) internal successors, (220), 159 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-11-13 18:52:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:56,867 INFO L93 Difference]: Finished difference Result 157 states and 206 transitions. [2021-11-13 18:52:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:52:56,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 206 transitions. [2021-11-13 18:52:56,882 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2021-11-13 18:52:56,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 147 states and 196 transitions. [2021-11-13 18:52:56,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 147 [2021-11-13 18:52:56,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 147 [2021-11-13 18:52:56,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 196 transitions. [2021-11-13 18:52:56,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:52:56,895 INFO L681 BuchiCegarLoop]: Abstraction has 147 states and 196 transitions. [2021-11-13 18:52:56,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 196 transitions. [2021-11-13 18:52:56,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-11-13 18:52:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 147 states have (on average 1.3333333333333333) internal successors, (196), 146 states have internal predecessors, (196), 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) [2021-11-13 18:52:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 196 transitions. [2021-11-13 18:52:56,941 INFO L704 BuchiCegarLoop]: Abstraction has 147 states and 196 transitions. [2021-11-13 18:52:56,942 INFO L587 BuchiCegarLoop]: Abstraction has 147 states and 196 transitions. [2021-11-13 18:52:56,942 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:52:56,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 147 states and 196 transitions. [2021-11-13 18:52:56,946 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2021-11-13 18:52:56,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:52:56,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:52:56,947 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:56,948 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:56,948 INFO L791 eck$LassoCheckResult]: Stem: 481#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 417#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret78#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 418#L938 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 346#L931 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 347#L946 main_#t~ret78#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret78#1;havoc main_#t~ret78#1; 473#L902 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 358#L875 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 359#L313 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 384#L251-2 [2021-11-13 18:52:56,949 INFO L793 eck$LassoCheckResult]: Loop: 384#L251-2 assume !false; 429#L252 assume test_~splverifierCounter~0#1 < 4; 430#L253 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 462#L261 assume !(0 != test_~tmp~3#1); 428#L261-2 test_~tmp___0~1#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 394#L271 assume !(0 != test_~tmp___0~1#1); 373#L271-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 360#L281 assume 0 != test_~tmp___2~0#1; 361#L287-2 assume { :begin_inline_timeShift } true; 469#L67 assume !(0 != ~pumpRunning~0); 363#L67-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 364#L125 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 463#L99-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 480#L91-3 assume { :end_inline_processEnvironment__wrappee__base } true; 397#L99-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 374#L125-1 assume { :end_inline_processEnvironment } true; 375#L74-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret31#1, __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 474#L390-1 __utac_acc__Specification2_spec__2_#t~ret31#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret31#1;havoc __utac_acc__Specification2_spec__2_#t~ret31#1; 367#L324 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 369#L324-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 466#L84 assume { :end_inline_timeShift } true; 384#L251-2 [2021-11-13 18:52:56,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:56,950 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-11-13 18:52:56,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:56,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789825944] [2021-11-13 18:52:56,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:56,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:57,017 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:52:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:57,106 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:52:57,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:57,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1619800021, now seen corresponding path program 1 times [2021-11-13 18:52:57,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:57,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341920524] [2021-11-13 18:52:57,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:57,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:52:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:52:57,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:52:57,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341920524] [2021-11-13 18:52:57,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341920524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:52:57,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:52:57,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:52:57,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874778676] [2021-11-13 18:52:57,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:52:57,131 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-13 18:52:57,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:52:57,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:52:57,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:52:57,132 INFO L87 Difference]: Start difference. First operand 147 states and 196 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:52:57,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:52:57,259 INFO L93 Difference]: Finished difference Result 205 states and 264 transitions. [2021-11-13 18:52:57,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:52:57,261 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 205 states and 264 transitions. [2021-11-13 18:52:57,265 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2021-11-13 18:52:57,268 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 205 states to 205 states and 264 transitions. [2021-11-13 18:52:57,268 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2021-11-13 18:52:57,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 205 [2021-11-13 18:52:57,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 205 states and 264 transitions. [2021-11-13 18:52:57,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:52:57,272 INFO L681 BuchiCegarLoop]: Abstraction has 205 states and 264 transitions. [2021-11-13 18:52:57,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states and 264 transitions. [2021-11-13 18:52:57,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2021-11-13 18:52:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.2878048780487805) internal successors, (264), 204 states have internal predecessors, (264), 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) [2021-11-13 18:52:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 264 transitions. [2021-11-13 18:52:57,287 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 264 transitions. [2021-11-13 18:52:57,288 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 264 transitions. [2021-11-13 18:52:57,288 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 18:52:57,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 264 transitions. [2021-11-13 18:52:57,290 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2021-11-13 18:52:57,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:52:57,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:52:57,292 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:57,292 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:52:57,293 INFO L791 eck$LassoCheckResult]: Stem: 845#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 778#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret78#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 779#L938 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 705#L931 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 706#L946 main_#t~ret78#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret78#1;havoc main_#t~ret78#1; 835#L902 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 717#L875 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 718#L313 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 746#L251-2 [2021-11-13 18:52:57,293 INFO L793 eck$LassoCheckResult]: Loop: 746#L251-2 assume !false; 790#L252 assume test_~splverifierCounter~0#1 < 4; 791#L253 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 824#L261 assume !(0 != test_~tmp~3#1); 789#L261-2 test_~tmp___0~1#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 754#L271 assume !(0 != test_~tmp___0~1#1); 732#L271-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 719#L281 assume 0 != test_~tmp___2~0#1; 720#L287-2 assume { :begin_inline_timeShift } true; 831#L67 assume !(0 != ~pumpRunning~0); 722#L67-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 723#L125 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 825#L99-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 774#L430-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 775#L435-1 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 821#L227-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 780#L227-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 781#L233-1 processEnvironment__wrappee__highWaterSensor_#t~ret7#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret7#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7#1; 812#L103-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 813#L91-2 assume { :end_inline_processEnvironment__wrappee__base } true; 814#L99-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 734#L125-1 assume { :end_inline_processEnvironment } true; 735#L74-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret31#1, __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 836#L390-1 __utac_acc__Specification2_spec__2_#t~ret31#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret31#1;havoc __utac_acc__Specification2_spec__2_#t~ret31#1; 724#L324 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 726#L324-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 827#L84 assume { :end_inline_timeShift } true; 746#L251-2 [2021-11-13 18:52:57,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:57,294 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-11-13 18:52:57,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:57,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024333624] [2021-11-13 18:52:57,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:57,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:57,344 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:52:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:57,494 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:52:57,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:57,497 INFO L85 PathProgramCache]: Analyzing trace with hash 825138499, now seen corresponding path program 1 times [2021-11-13 18:52:57,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:57,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036443573] [2021-11-13 18:52:57,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:57,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:57,504 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:52:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:57,520 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:52:57,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:52:57,521 INFO L85 PathProgramCache]: Analyzing trace with hash 995913914, now seen corresponding path program 1 times [2021-11-13 18:52:57,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:52:57,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617545838] [2021-11-13 18:52:57,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:52:57,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:52:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:57,574 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:52:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:52:57,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:54:08,768 WARN L227 SmtUtils]: Spent 1.18m on a formula simplification. DAG size of input: 495 DAG size of output: 437 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:55:22,714 WARN L227 SmtUtils]: Spent 35.20s on a formula simplification that was a NOOP. DAG size: 435 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:55:22,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:55:22 BoogieIcfgContainer [2021-11-13 18:55:22,865 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:55:22,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:55:22,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:55:22,866 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:55:22,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:52:55" (3/4) ... [2021-11-13 18:55:22,870 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-13 18:55:22,932 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:55:22,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:55:22,934 INFO L158 Benchmark]: Toolchain (without parser) took 149855.20ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 76.5MB in the beginning and 79.0MB in the end (delta: -2.6MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2021-11-13 18:55:22,934 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 109.1MB. Free memory was 63.8MB in the beginning and 63.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:55:22,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.24ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 75.7MB in the end (delta: 460.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:55:22,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.70ms. Allocated memory is still 109.1MB. Free memory was 75.7MB in the beginning and 72.1MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:55:22,936 INFO L158 Benchmark]: Boogie Preprocessor took 73.68ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 69.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:55:22,937 INFO L158 Benchmark]: RCFGBuilder took 1265.88ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 69.6MB in the beginning and 85.4MB in the end (delta: -15.9MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2021-11-13 18:55:22,938 INFO L158 Benchmark]: BuchiAutomizer took 147620.79ms. Allocated memory was 132.1MB in the beginning and 161.5MB in the end (delta: 29.4MB). Free memory was 85.4MB in the beginning and 83.1MB in the end (delta: 2.3MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2021-11-13 18:55:22,938 INFO L158 Benchmark]: Witness Printer took 66.83ms. Allocated memory is still 161.5MB. Free memory was 82.2MB in the beginning and 79.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:55:22,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 109.1MB. Free memory was 63.8MB in the beginning and 63.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.24ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 75.7MB in the end (delta: 460.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.70ms. Allocated memory is still 109.1MB. Free memory was 75.7MB in the beginning and 72.1MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.68ms. Allocated memory is still 109.1MB. Free memory was 72.1MB in the beginning and 69.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1265.88ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 69.6MB in the beginning and 85.4MB in the end (delta: -15.9MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 147620.79ms. Allocated memory was 132.1MB in the beginning and 161.5MB in the end (delta: 29.4MB). Free memory was 85.4MB in the beginning and 83.1MB in the end (delta: 2.3MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. * Witness Printer took 66.83ms. Allocated memory is still 161.5MB. Free memory was 82.2MB in the beginning and 79.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 205 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 147.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 146.8s. Construction of modules took 0.2s. 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 205 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 745 SdHoareTripleChecker+Valid, 290.47ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 745 mSDsluCounter, 508 SdHoareTripleChecker+Invalid, 227.69ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 412 mSDtfsCounter, 38 mSolverCounterSat, 16.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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: 251]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=16013} State at position 1 is {tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=16013, NULL=16041, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73826982=0, NULL=16036, NULL=16032, methaneLevelCritical=0, NULL=16024, NULL=0, tmp___2=56, NULL=16031, cleanupTimeShifts=4, NULL=16039, \result=0, NULL=16019, NULL=0, waterLevel=1, NULL=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62db708f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@438c09f5=56, head=0, pumpRunning=0, NULL=16034, NULL=0, NULL=0, NULL=0, \result=0, NULL=16030, retValue_acc=1, NULL=0, NULL=0, NULL=16028, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@81fd09c=0, tmp=1, methAndRunningLastTime=0, NULL=16040, tmp=0, head=0, NULL=16027, NULL=16021, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39cd116b=0, tmp=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@352bf6c3=0, NULL=16022, NULL=0, NULL=0, NULL=0, NULL=16026, NULL=16035, NULL=16025, tmp=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=16023, NULL=16038, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@286f90c6=0, NULL=0, NULL=0, tmp___1=0, NULL=0, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2768ca5=0, tmp___0=0, retValue_acc=0, NULL=16014, tmp___0=0, NULL=16016, NULL=0, NULL=16033, NULL=0, NULL=0, retValue_acc=1, \result=1, retValue_acc=0, retValue_acc=0, NULL=16020, NULL=0, NULL=16015, tmp=0, NULL=16037, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e5cfa52=0, NULL=16018, NULL=16017, NULL=0, NULL=0, NULL=16029, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3829fea7=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 251]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int pumpRunning = 0; [L60] int systemActive = 1; [L307] int methAndRunningLastTime ; [L347] int waterLevel = 1; [L348] int methaneLevelCritical = 0; [L619] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L816] int cleanupTimeShifts = 4; [L893] int retValue_acc ; [L894] int tmp ; [L898] FCALL select_helpers() [L899] FCALL select_features() [L900] CALL, EXPR valid_product() [L942] int retValue_acc ; [L945] retValue_acc = 1 [L946] return (retValue_acc); [L900] RET, EXPR valid_product() [L900] tmp = valid_product() [L902] COND TRUE \read(tmp) [L904] FCALL setup() [L905] CALL runTest() [L883] CALL __utac_acc__Specification2_spec__1() [L312] methAndRunningLastTime = 0 [L883] RET __utac_acc__Specification2_spec__1() [L884] CALL test() [L242] int splverifierCounter ; [L243] int tmp ; [L244] int tmp___0 ; [L245] int tmp___1 ; [L246] int tmp___2 ; [L249] splverifierCounter = 0 Loop: [L251] COND TRUE 1 [L253] COND TRUE splverifierCounter < 4 [L259] tmp = __VERIFIER_nondet_int() [L261] COND FALSE !(\read(tmp)) [L269] tmp___0 = __VERIFIER_nondet_int() [L271] COND FALSE !(\read(tmp___0)) [L279] tmp___2 = __VERIFIER_nondet_int() [L281] COND TRUE \read(tmp___2) [L294] CALL timeShift() [L67] COND FALSE !(\read(pumpRunning)) [L74] COND TRUE \read(systemActive) [L76] CALL processEnvironment() [L122] int tmp ; [L125] COND FALSE !(\read(pumpRunning)) [L140] CALL processEnvironment__wrappee__highWaterSensor() [L96] int tmp ; [L99] COND TRUE ! pumpRunning [L101] CALL, EXPR isHighWaterLevel() [L219] int retValue_acc ; [L220] int tmp ; [L221] int tmp___0 ; [L225] CALL, EXPR isHighWaterSensorDry() [L427] int retValue_acc ; [L430] COND TRUE waterLevel < 2 [L431] retValue_acc = 1 [L432] return (retValue_acc); [L225] RET, EXPR isHighWaterSensorDry() [L225] tmp = isHighWaterSensorDry() [L227] COND TRUE \read(tmp) [L228] tmp___0 = 0 [L232] retValue_acc = tmp___0 [L233] return (retValue_acc); [L101] RET, EXPR isHighWaterLevel() [L101] tmp = isHighWaterLevel() [L103] COND FALSE !(\read(tmp)) [L109] FCALL processEnvironment__wrappee__base() [L140] RET processEnvironment__wrappee__highWaterSensor() [L76] RET processEnvironment() [L82] CALL __utac_acc__Specification2_spec__2() [L317] int tmp ; [L318] int tmp___0 ; [L322] CALL, EXPR isMethaneLevelCritical() [L386] int retValue_acc ; [L389] retValue_acc = methaneLevelCritical [L390] return (retValue_acc); [L322] RET, EXPR isMethaneLevelCritical() [L322] tmp = isMethaneLevelCritical() [L324] COND FALSE !(\read(tmp)) [L340] methAndRunningLastTime = 0 [L82] RET __utac_acc__Specification2_spec__2() [L294] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 18:55:23,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b853d45-9163-4d2e-bfc5-69df0303943a/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)