./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.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_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/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_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/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_ddd8ae21-4bec-424f-9e1d-95612030a293/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 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:47:01,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:47:01,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:47:01,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:47:01,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:47:01,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:47:01,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:47:01,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:47:01,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:47:01,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:47:01,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:47:01,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:47:01,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:47:01,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:47:01,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:47:01,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:47:01,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:47:01,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:47:01,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:47:01,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:47:01,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:47:01,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:47:01,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:47:01,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:47:01,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:47:01,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:47:01,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:47:01,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:47:01,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:47:01,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:47:01,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:47:01,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:47:01,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:47:01,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:47:01,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:47:01,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:47:01,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:47:01,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:47:01,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:47:01,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:47:01,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:47:01,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:47:01,934 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:47:01,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:47:01,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:47:01,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:47:01,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:47:01,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:47:01,938 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:47:01,939 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:47:01,939 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:47:01,939 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:47:01,941 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:47:01,941 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:47:01,942 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:47:01,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:47:01,942 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:47:01,942 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:47:01,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:47:01,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:47:01,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:47:01,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:47:01,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:47:01,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:47:01,945 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:47:01,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:47:01,945 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:47:01,945 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:47:01,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:47:01,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:47:01,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:47:01,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:47:01,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:47:01,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:47:01,950 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:47:01,950 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_ddd8ae21-4bec-424f-9e1d-95612030a293/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303db4082dd8b7a60cb4b5043655f09159321046818373497160cd54b8948d04 [2021-11-13 18:47:02,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:47:02,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:47:02,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:47:02,384 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:47:02,386 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:47:02,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2021-11-13 18:47:02,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/data/36d19877a/4d3458e826de49bfb7995b2f0bda99bd/FLAG6686f7090 [2021-11-13 18:47:03,107 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:47:03,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c [2021-11-13 18:47:03,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/data/36d19877a/4d3458e826de49bfb7995b2f0bda99bd/FLAG6686f7090 [2021-11-13 18:47:03,408 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/data/36d19877a/4d3458e826de49bfb7995b2f0bda99bd [2021-11-13 18:47:03,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:47:03,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:47:03,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:47:03,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:47:03,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:47:03,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:47:03" (1/1) ... [2021-11-13 18:47:03,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3134033a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:03, skipping insertion in model container [2021-11-13 18:47:03,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:47:03" (1/1) ... [2021-11-13 18:47:03,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:47:03,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:47:03,736 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_ddd8ae21-4bec-424f-9e1d-95612030a293/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2021-11-13 18:47:03,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:47:03,947 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:47:03,964 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_ddd8ae21-4bec-424f-9e1d-95612030a293/sv-benchmarks/c/product-lines/minepump_spec5_product47.cil.c[1605,1618] [2021-11-13 18:47:04,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:47:04,058 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:47:04,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04 WrapperNode [2021-11-13 18:47:04,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:47:04,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:47:04,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:47:04,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:47:04,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:47:04,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:47:04,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:47:04,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:47:04,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:47:04,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:47:04,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:47:04,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:47:04,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (1/1) ... [2021-11-13 18:47:04,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:47:04,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:47:04,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:47:04,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:47:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:47:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:47:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:47:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:47:05,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:47:05,558 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:47:05,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:47:05 BoogieIcfgContainer [2021-11-13 18:47:05,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:47:05,564 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:47:05,564 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:47:05,573 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:47:05,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:47:05,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:47:03" (1/3) ... [2021-11-13 18:47:05,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f554700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:47:05, skipping insertion in model container [2021-11-13 18:47:05,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:47:05,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:47:04" (2/3) ... [2021-11-13 18:47:05,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f554700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:47:05, skipping insertion in model container [2021-11-13 18:47:05,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:47:05,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:47:05" (3/3) ... [2021-11-13 18:47:05,579 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2021-11-13 18:47:05,641 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:47:05,642 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:47:05,642 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:47:05,642 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:47:05,642 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:47:05,643 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:47:05,643 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:47:05,643 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:47:05,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 18:47:05,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2021-11-13 18:47:05,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:47:05,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:47:05,719 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:47:05,719 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:47:05,720 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:47:05,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 18:47:05,734 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2021-11-13 18:47:05,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:47:05,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:47:05,737 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:47:05,737 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:47:05,744 INFO L791 eck$LassoCheckResult]: Stem: 186#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 122#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 55#L843true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 19#L836true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 154#L851true main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 29#L441true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 79#L413true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 101#L863true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 119#L297-2true [2021-11-13 18:47:05,745 INFO L793 eck$LassoCheckResult]: Loop: 119#L297-2true assume !false; 109#L298true assume test_~splverifierCounter~0#1 < 4; 38#L299true test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 150#L307true assume !(0 != test_~tmp~4#1); 22#L307-2true test_~tmp___0~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 90#L317true assume !(0 != test_~tmp___0~1#1); 43#L317-2true test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 100#L327true assume 0 != test_~tmp___2~0#1; 144#L333-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret69#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 179#L209true __utac_acc__Specification5_spec__2_#t~ret69#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69#1;havoc __utac_acc__Specification5_spec__2_#t~ret69#1; 39#L873true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 188#L81true assume !(0 != ~pumpRunning~0); 164#L81-2true assume !(0 != ~systemActive~0); 74#L88-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret70#1, __utac_acc__Specification5_spec__3_#t~ret71#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 93#L981true __utac_acc__Specification5_spec__3_#t~ret70#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret70#1;havoc __utac_acc__Specification5_spec__3_#t~ret70#1; 105#L884true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 51#L884-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 170#L98true assume { :end_inline_timeShift } true; 119#L297-2true [2021-11-13 18:47:05,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:05,753 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-11-13 18:47:05,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:05,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098864041] [2021-11-13 18:47:05,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:05,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:06,197 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:47:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:06,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:47:06,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:06,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1358986284, now seen corresponding path program 1 times [2021-11-13 18:47:06,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:06,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556108976] [2021-11-13 18:47:06,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:06,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:06,535 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:47:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:06,561 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:47:06,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:06,572 INFO L85 PathProgramCache]: Analyzing trace with hash 19633877, now seen corresponding path program 1 times [2021-11-13 18:47:06,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:06,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458433493] [2021-11-13 18:47:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:06,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:47:06,824 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 18:47:06,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:47:06,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458433493] [2021-11-13 18:47:06,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458433493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:47:06,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:47:06,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:47:06,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449083773] [2021-11-13 18:47:06,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:47:07,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:47:07,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:47:07,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:47:07,105 INFO L87 Difference]: Start difference. First operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 18:47:07,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:47:07,459 INFO L93 Difference]: Finished difference Result 447 states and 582 transitions. [2021-11-13 18:47:07,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:47:07,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 447 states and 582 transitions. [2021-11-13 18:47:07,481 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 289 [2021-11-13 18:47:07,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 447 states to 417 states and 552 transitions. [2021-11-13 18:47:07,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 417 [2021-11-13 18:47:07,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 417 [2021-11-13 18:47:07,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 417 states and 552 transitions. [2021-11-13 18:47:07,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:47:07,502 INFO L681 BuchiCegarLoop]: Abstraction has 417 states and 552 transitions. [2021-11-13 18:47:07,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states and 552 transitions. [2021-11-13 18:47:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 242. [2021-11-13 18:47:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.322314049586777) internal successors, (320), 241 states have internal predecessors, (320), 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 18:47:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 320 transitions. [2021-11-13 18:47:07,559 INFO L704 BuchiCegarLoop]: Abstraction has 242 states and 320 transitions. [2021-11-13 18:47:07,559 INFO L587 BuchiCegarLoop]: Abstraction has 242 states and 320 transitions. [2021-11-13 18:47:07,559 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:47:07,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 320 transitions. [2021-11-13 18:47:07,563 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2021-11-13 18:47:07,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:47:07,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:47:07,565 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:47:07,566 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] [2021-11-13 18:47:07,566 INFO L791 eck$LassoCheckResult]: Stem: 838#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 781#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 782#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 712#L836 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 713#L851 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 735#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 736#L413 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 737#L863 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 738#L297-2 [2021-11-13 18:47:07,566 INFO L793 eck$LassoCheckResult]: Loop: 738#L297-2 assume !false; 755#L298 assume test_~splverifierCounter~0#1 < 4; 756#L299 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 778#L307 assume !(0 != test_~tmp~4#1); 692#L307-2 test_~tmp___0~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 676#L317 assume !(0 != test_~tmp___0~1#1); 678#L317-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 728#L327 assume 0 != test_~tmp___2~0#1; 729#L333-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret69#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 812#L209 __utac_acc__Specification5_spec__2_#t~ret69#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69#1;havoc __utac_acc__Specification5_spec__2_#t~ret69#1; 784#L873 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 785#L81 assume !(0 != ~pumpRunning~0); 814#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 752#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 753#L113-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 792#L105-3 assume { :end_inline_processEnvironment__wrappee__base } true; 786#L113-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 695#L139-1 assume { :end_inline_processEnvironment } true; 696#L88-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret70#1, __utac_acc__Specification5_spec__3_#t~ret71#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 699#L981 __utac_acc__Specification5_spec__3_#t~ret70#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret70#1;havoc __utac_acc__Specification5_spec__3_#t~ret70#1; 700#L884 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 702#L884-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 807#L98 assume { :end_inline_timeShift } true; 738#L297-2 [2021-11-13 18:47:07,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:07,567 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-11-13 18:47:07,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:07,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731184300] [2021-11-13 18:47:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:07,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:07,651 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:47:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:07,721 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:47:07,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:07,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1571204004, now seen corresponding path program 1 times [2021-11-13 18:47:07,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:07,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821612813] [2021-11-13 18:47:07,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:07,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:47:07,744 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 18:47:07,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:47:07,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821612813] [2021-11-13 18:47:07,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821612813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:47:07,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:47:07,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:47:07,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477028730] [2021-11-13 18:47:07,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:47:07,747 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-13 18:47:07,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:47:07,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:47:07,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:47:07,749 INFO L87 Difference]: Start difference. First operand 242 states and 320 transitions. cyclomatic complexity: 81 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:47:07,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:47:07,894 INFO L93 Difference]: Finished difference Result 307 states and 389 transitions. [2021-11-13 18:47:07,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:47:07,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 389 transitions. [2021-11-13 18:47:07,900 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2021-11-13 18:47:07,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 307 states and 389 transitions. [2021-11-13 18:47:07,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 307 [2021-11-13 18:47:07,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 307 [2021-11-13 18:47:07,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 307 states and 389 transitions. [2021-11-13 18:47:07,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:47:07,910 INFO L681 BuchiCegarLoop]: Abstraction has 307 states and 389 transitions. [2021-11-13 18:47:07,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states and 389 transitions. [2021-11-13 18:47:07,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2021-11-13 18:47:07,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 307 states have (on average 1.267100977198697) internal successors, (389), 306 states have internal predecessors, (389), 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 18:47:07,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 389 transitions. [2021-11-13 18:47:07,930 INFO L704 BuchiCegarLoop]: Abstraction has 307 states and 389 transitions. [2021-11-13 18:47:07,930 INFO L587 BuchiCegarLoop]: Abstraction has 307 states and 389 transitions. [2021-11-13 18:47:07,930 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 18:47:07,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 307 states and 389 transitions. [2021-11-13 18:47:07,934 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 217 [2021-11-13 18:47:07,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:47:07,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:47:07,936 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:47:07,936 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, 1, 1] [2021-11-13 18:47:07,936 INFO L791 eck$LassoCheckResult]: Stem: 1413#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1343#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1344#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1268#L836 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1269#L851 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 1292#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1293#L413 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1294#L863 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1295#L297-2 [2021-11-13 18:47:07,937 INFO L793 eck$LassoCheckResult]: Loop: 1295#L297-2 assume !false; 1312#L298 assume test_~splverifierCounter~0#1 < 4; 1313#L299 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1498#L307 assume !(0 != test_~tmp~4#1); 1496#L307-2 test_~tmp___0~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1231#L317 assume !(0 != test_~tmp___0~1#1); 1233#L317-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1354#L327 assume 0 != test_~tmp___2~0#1; 1491#L333-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret69#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 1405#L209 __utac_acc__Specification5_spec__2_#t~ret69#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69#1;havoc __utac_acc__Specification5_spec__2_#t~ret69#1; 1406#L873 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1490#L81 assume !(0 != ~pumpRunning~0); 1392#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1310#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 1311#L113-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1236#L989-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1237#L994-1 isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1; 1362#L258-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1363#L258-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1386#L264-1 processEnvironment__wrappee__methaneQuery_#t~ret7#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~0#1 := processEnvironment__wrappee__methaneQuery_#t~ret7#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1; 1223#L117-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1225#L105-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1351#L113-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1252#L139-1 assume { :end_inline_processEnvironment } true; 1253#L88-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret70#1, __utac_acc__Specification5_spec__3_#t~ret71#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1489#L981 __utac_acc__Specification5_spec__3_#t~ret70#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret70#1;havoc __utac_acc__Specification5_spec__3_#t~ret70#1; 1303#L884 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 1257#L884-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1400#L98 assume { :end_inline_timeShift } true; 1295#L297-2 [2021-11-13 18:47:07,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:07,938 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-11-13 18:47:07,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:07,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518804333] [2021-11-13 18:47:07,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:07,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:07,990 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:47:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:08,054 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:47:08,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:08,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1993864476, now seen corresponding path program 1 times [2021-11-13 18:47:08,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:08,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726635659] [2021-11-13 18:47:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:08,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:47:08,107 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 18:47:08,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:47:08,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726635659] [2021-11-13 18:47:08,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726635659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:47:08,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:47:08,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:47:08,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195689639] [2021-11-13 18:47:08,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:47:08,110 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-13 18:47:08,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:47:08,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:47:08,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:47:08,112 INFO L87 Difference]: Start difference. First operand 307 states and 389 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 18:47:08,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:47:08,333 INFO L93 Difference]: Finished difference Result 858 states and 1065 transitions. [2021-11-13 18:47:08,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:47:08,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 858 states and 1065 transitions. [2021-11-13 18:47:08,351 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 565 [2021-11-13 18:47:08,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 858 states to 858 states and 1065 transitions. [2021-11-13 18:47:08,389 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 858 [2021-11-13 18:47:08,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 858 [2021-11-13 18:47:08,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 858 states and 1065 transitions. [2021-11-13 18:47:08,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:47:08,396 INFO L681 BuchiCegarLoop]: Abstraction has 858 states and 1065 transitions. [2021-11-13 18:47:08,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states and 1065 transitions. [2021-11-13 18:47:08,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 603. [2021-11-13 18:47:08,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 603 states have (on average 1.24212271973466) internal successors, (749), 602 states have internal predecessors, (749), 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 18:47:08,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 749 transitions. [2021-11-13 18:47:08,448 INFO L704 BuchiCegarLoop]: Abstraction has 603 states and 749 transitions. [2021-11-13 18:47:08,448 INFO L587 BuchiCegarLoop]: Abstraction has 603 states and 749 transitions. [2021-11-13 18:47:08,448 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-13 18:47:08,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 603 states and 749 transitions. [2021-11-13 18:47:08,454 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 431 [2021-11-13 18:47:08,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:47:08,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:47:08,456 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:47:08,456 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, 1, 1, 1, 1] [2021-11-13 18:47:08,462 INFO L791 eck$LassoCheckResult]: Stem: 2607#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2524#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2525#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2449#L836 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2450#L851 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 2475#L441 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2476#L413 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2477#L863 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2478#L297-2 [2021-11-13 18:47:08,463 INFO L793 eck$LassoCheckResult]: Loop: 2478#L297-2 assume !false; 2941#L298 assume test_~splverifierCounter~0#1 < 4; 2940#L299 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2933#L307 assume !(0 != test_~tmp~4#1); 2459#L307-2 test_~tmp___0~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2414#L317 assume !(0 != test_~tmp___0~1#1); 2416#L317-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2468#L327 assume 0 != test_~tmp___2~0#1; 2469#L333-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret69#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2565#L209 __utac_acc__Specification5_spec__2_#t~ret69#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69#1;havoc __utac_acc__Specification5_spec__2_#t~ret69#1; 2531#L873 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2532#L81 assume !(0 != ~pumpRunning~0); 2580#L81-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2493#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1, processEnvironment__wrappee__methaneQuery_~tmp~0#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~0#1; 2494#L113-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2417#L989-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2418#L994-1 isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1; 2546#L258-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2547#L258-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2574#L264-1 processEnvironment__wrappee__methaneQuery_#t~ret7#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~0#1 := processEnvironment__wrappee__methaneQuery_#t~ret7#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret7#1; 2404#L117-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2406#L105-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2533#L113-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2431#L139-1 assume { :end_inline_processEnvironment } true; 2432#L88-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret70#1, __utac_acc__Specification5_spec__3_#t~ret71#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2435#L981 __utac_acc__Specification5_spec__3_#t~ret70#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret70#1;havoc __utac_acc__Specification5_spec__3_#t~ret70#1; 2436#L884 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~1#1;havoc isPumpRunning_~retValue_acc~1#1;isPumpRunning_~retValue_acc~1#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; 2615#L209-1 __utac_acc__Specification5_spec__3_#t~ret71#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret71#1;havoc __utac_acc__Specification5_spec__3_#t~ret71#1; 2616#L888 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2561#L884-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2562#L98 assume { :end_inline_timeShift } true; 2478#L297-2 [2021-11-13 18:47:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:08,464 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-11-13 18:47:08,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:08,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110039246] [2021-11-13 18:47:08,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:08,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:08,565 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:47:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:08,652 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:47:08,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:08,653 INFO L85 PathProgramCache]: Analyzing trace with hash 529251831, now seen corresponding path program 1 times [2021-11-13 18:47:08,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:08,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547664968] [2021-11-13 18:47:08,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:08,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:08,664 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:47:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:08,688 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:47:08,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:47:08,689 INFO L85 PathProgramCache]: Analyzing trace with hash -282788370, now seen corresponding path program 1 times [2021-11-13 18:47:08,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:47:08,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522297709] [2021-11-13 18:47:08,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:47:08,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:47:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:08,783 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:47:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:47:08,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:48:27,236 WARN L227 SmtUtils]: Spent 1.30m 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 18:49:48,701 WARN L227 SmtUtils]: Spent 39.93s 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 18:49:48,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:49:48 BoogieIcfgContainer [2021-11-13 18:49:48,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:49:48,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:49:48,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:49:48,890 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:49:48,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:47:05" (3/4) ... [2021-11-13 18:49:48,893 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-13 18:49:48,960 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:49:48,960 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:49:48,961 INFO L158 Benchmark]: Toolchain (without parser) took 165547.57ms. Allocated memory was 94.4MB in the beginning and 159.4MB in the end (delta: 65.0MB). Free memory was 57.7MB in the beginning and 75.4MB in the end (delta: -17.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2021-11-13 18:49:48,962 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 67.0MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:49:48,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.88ms. Allocated memory is still 94.4MB. Free memory was 57.5MB in the beginning and 60.4MB in the end (delta: -2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:49:48,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.44ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 56.6MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:49:48,964 INFO L158 Benchmark]: Boogie Preprocessor took 58.14ms. Allocated memory is still 94.4MB. Free memory was 56.6MB in the beginning and 53.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:49:48,964 INFO L158 Benchmark]: RCFGBuilder took 1330.80ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 53.8MB in the beginning and 68.6MB in the end (delta: -14.8MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-11-13 18:49:48,965 INFO L158 Benchmark]: BuchiAutomizer took 163324.84ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 68.0MB in the beginning and 78.5MB in the end (delta: -10.6MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2021-11-13 18:49:48,966 INFO L158 Benchmark]: Witness Printer took 71.30ms. Allocated memory is still 159.4MB. Free memory was 78.5MB in the beginning and 75.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:49:48,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 67.0MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.88ms. Allocated memory is still 94.4MB. Free memory was 57.5MB in the beginning and 60.4MB in the end (delta: -2.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.44ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 56.6MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.14ms. Allocated memory is still 94.4MB. Free memory was 56.6MB in the beginning and 53.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1330.80ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 53.8MB in the beginning and 68.6MB in the end (delta: -14.8MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 163324.84ms. Allocated memory was 119.5MB in the beginning and 159.4MB in the end (delta: 39.8MB). Free memory was 68.0MB in the beginning and 78.5MB in the end (delta: -10.6MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. * Witness Printer took 71.30ms. Allocated memory is still 159.4MB. Free memory was 78.5MB in the beginning and 75.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 603 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 163.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 162.0s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 430 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 603 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2165 SdHoareTripleChecker+Valid, 500.53ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2165 mSDsluCounter, 2648 SdHoareTripleChecker+Invalid, 392.38ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1818 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 830 mSDtfsCounter, 159 mSolverCounterSat, 39.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 297]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18787} State at position 1 is {tmp___0=0, NULL=0, NULL=0, NULL=18796, NULL=0, NULL=18787, retValue_acc=0, NULL=0, NULL=18814, NULL=0, NULL=18812, methaneLevelCritical=0, retValue_acc=1, NULL=0, tmp___2=51, NULL=18788, \result=0, cleanupTimeShifts=4, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@333386b0=0, NULL=18794, \result=1, waterLevel=1, NULL=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2386eead=0, NULL=18799, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f478c48=0, retValue_acc=0, tmp=1, NULL=18809, NULL=0, retValue_acc=1, NULL=0, NULL=18802, \result=1, NULL=0, NULL=0, NULL=18805, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6010e6c2=0, NULL=18810, tmp=0, head=0, NULL=0, NULL=18803, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b4c524b=0, NULL=18807, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b8a3fa9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c8d8e7a=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@520c6083=51, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a0314a8=0, NULL=0, NULL=18806, NULL=18801, NULL=0, NULL=0, switchedOnBeforeTS=0, tmp___0=0, NULL=18789, tmp___1=0, NULL=0, systemActive=1, NULL=0, tmp=0, NULL=18793, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=18815, tmp=0, NULL=18800, tmp___0=0, NULL=18790, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e32606=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=18798, \result=1, NULL=18813, NULL=18808, tmp=1, NULL=0, NULL=18791, NULL=18804, NULL=0, NULL=0, NULL=18795, NULL=0, NULL=18792, NULL=18811, NULL=18797, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f164b7=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 297]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L69] int pumpRunning = 0; [L70] int systemActive = 1; [L354] int cleanupTimeShifts = 4; [L624] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L857] int switchedOnBeforeTS ; [L906] int waterLevel = 1; [L907] int methaneLevelCritical = 0; [L432] int retValue_acc ; [L433] int tmp ; [L437] FCALL select_helpers() [L438] FCALL select_features() [L439] CALL, EXPR valid_product() [L847] int retValue_acc ; [L850] retValue_acc = 1 [L851] return (retValue_acc); [L439] RET, EXPR valid_product() [L439] tmp = valid_product() [L441] COND TRUE \read(tmp) [L443] FCALL setup() [L444] CALL runTest() [L422] CALL __utac_acc__Specification5_spec__1() [L862] switchedOnBeforeTS = 0 [L422] RET __utac_acc__Specification5_spec__1() [L423] CALL test() [L288] int splverifierCounter ; [L289] int tmp ; [L290] int tmp___0 ; [L291] int tmp___1 ; [L292] int tmp___2 ; [L295] splverifierCounter = 0 Loop: [L297] COND TRUE 1 [L299] COND TRUE splverifierCounter < 4 [L305] tmp = __VERIFIER_nondet_int() [L307] COND FALSE !(\read(tmp)) [L315] tmp___0 = __VERIFIER_nondet_int() [L317] COND FALSE !(\read(tmp___0)) [L325] tmp___2 = __VERIFIER_nondet_int() [L327] COND TRUE \read(tmp___2) [L342] CALL timeShift() [L79] CALL __utac_acc__Specification5_spec__2() [L871] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L871] RET, EXPR isPumpRunning() [L871] switchedOnBeforeTS = isPumpRunning() [L79] RET __utac_acc__Specification5_spec__2() [L81] COND FALSE !(\read(pumpRunning)) [L88] COND TRUE \read(systemActive) [L90] CALL processEnvironment() [L136] int tmp ; [L139] COND FALSE !(\read(pumpRunning)) [L154] CALL processEnvironment__wrappee__methaneQuery() [L110] int tmp ; [L113] COND TRUE ! pumpRunning [L115] CALL, EXPR isHighWaterLevel() [L250] int retValue_acc ; [L251] int tmp ; [L252] int tmp___0 ; [L256] CALL, EXPR isHighWaterSensorDry() [L986] int retValue_acc ; [L989] COND TRUE waterLevel < 2 [L990] retValue_acc = 1 [L991] return (retValue_acc); [L256] RET, EXPR isHighWaterSensorDry() [L256] tmp = isHighWaterSensorDry() [L258] COND TRUE \read(tmp) [L259] tmp___0 = 0 [L263] retValue_acc = tmp___0 [L264] return (retValue_acc); [L115] RET, EXPR isHighWaterLevel() [L115] tmp = isHighWaterLevel() [L117] COND FALSE !(\read(tmp)) [L123] FCALL processEnvironment__wrappee__base() [L154] RET processEnvironment__wrappee__methaneQuery() [L90] RET processEnvironment() [L96] CALL __utac_acc__Specification5_spec__3() [L877] int tmp ; [L878] int tmp___0 ; [L882] CALL, EXPR getWaterLevel() [L977] int retValue_acc ; [L980] retValue_acc = waterLevel [L981] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp = getWaterLevel() [L884] COND TRUE tmp != 2 [L886] CALL, EXPR isPumpRunning() [L205] int retValue_acc ; [L208] retValue_acc = pumpRunning [L209] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___0 = isPumpRunning() [L888] COND FALSE !(\read(tmp___0)) [L96] RET __utac_acc__Specification5_spec__3() [L342] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 18:49:49,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddd8ae21-4bec-424f-9e1d-95612030a293/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)