./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product02.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product02.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8 --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 dc16baed9582dc03b8c04a72a2e3374c4a73ebd0268e0a32bbf7f86bd3b5da48 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:48:27,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:48:27,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:48:27,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:48:27,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:48:27,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:48:27,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:48:27,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:48:27,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:48:27,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:48:27,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:48:27,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:48:27,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:48:27,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:48:27,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:48:27,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:48:27,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:48:27,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:48:27,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:48:27,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:48:27,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:48:27,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:48:27,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:48:27,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:48:27,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:48:27,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:48:27,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:48:27,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:48:27,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:48:27,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:48:27,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:48:27,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:48:27,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:48:27,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:48:27,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:48:27,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:48:27,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:48:27,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:48:27,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:48:27,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:48:27,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:48:27,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 17:48:27,580 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:48:27,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:48:27,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:48:27,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:48:27,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:48:27,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:48:27,582 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:48:27,583 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 17:48:27,583 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 17:48:27,583 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 17:48:27,583 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 17:48:27,583 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 17:48:27,583 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 17:48:27,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:48:27,584 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:48:27,584 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:48:27,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:48:27,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:48:27,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:48:27,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 17:48:27,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 17:48:27,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 17:48:27,585 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:48:27,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:48:27,585 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 17:48:27,585 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:48:27,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 17:48:27,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:48:27,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:48:27,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:48:27,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:48:27,587 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 17:48:27,587 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_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc16baed9582dc03b8c04a72a2e3374c4a73ebd0268e0a32bbf7f86bd3b5da48 [2022-12-13 17:48:27,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:48:27,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:48:27,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:48:27,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:48:27,811 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:48:27,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec5_product02.cil.c [2022-12-13 17:48:30,321 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:48:30,499 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:48:30,500 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/sv-benchmarks/c/product-lines/minepump_spec5_product02.cil.c [2022-12-13 17:48:30,508 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/data/eb50b31b0/c0144da994004016b0f5520e1e40ae1a/FLAG7636b1b4b [2022-12-13 17:48:30,880 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/data/eb50b31b0/c0144da994004016b0f5520e1e40ae1a [2022-12-13 17:48:30,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:48:30,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:48:30,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:48:30,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:48:30,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:48:30,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:48:30" (1/1) ... [2022-12-13 17:48:30,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e29aae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:30, skipping insertion in model container [2022-12-13 17:48:30,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:48:30" (1/1) ... [2022-12-13 17:48:30,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:48:30,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:48:31,071 WARN L237 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_d4942755-c543-4284-b0ed-adb1bed641cf/sv-benchmarks/c/product-lines/minepump_spec5_product02.cil.c[14969,14982] [2022-12-13 17:48:31,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:48:31,089 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:48:31,123 WARN L237 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_d4942755-c543-4284-b0ed-adb1bed641cf/sv-benchmarks/c/product-lines/minepump_spec5_product02.cil.c[14969,14982] [2022-12-13 17:48:31,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:48:31,139 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:48:31,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31 WrapperNode [2022-12-13 17:48:31,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:48:31,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:48:31,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:48:31,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:48:31,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,171 INFO L138 Inliner]: procedures = 52, calls = 92, calls flagged for inlining = 45, calls inlined = 40, statements flattened = 265 [2022-12-13 17:48:31,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:48:31,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:48:31,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:48:31,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:48:31,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,187 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:48:31,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:48:31,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:48:31,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:48:31,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (1/1) ... [2022-12-13 17:48:31,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 17:48:31,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:48:31,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 17:48:31,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 17:48:31,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:48:31,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:48:31,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:48:31,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:48:31,315 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:48:31,316 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:48:31,487 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:48:31,491 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:48:31,492 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 17:48:31,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:48:31 BoogieIcfgContainer [2022-12-13 17:48:31,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:48:31,494 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 17:48:31,494 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 17:48:31,497 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 17:48:31,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:48:31,498 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 05:48:30" (1/3) ... [2022-12-13 17:48:31,498 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d327a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 05:48:31, skipping insertion in model container [2022-12-13 17:48:31,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:48:31,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:48:31" (2/3) ... [2022-12-13 17:48:31,499 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d327a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 05:48:31, skipping insertion in model container [2022-12-13 17:48:31,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 17:48:31,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:48:31" (3/3) ... [2022-12-13 17:48:31,500 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product02.cil.c [2022-12-13 17:48:31,541 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 17:48:31,541 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 17:48:31,541 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 17:48:31,541 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 17:48:31,542 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 17:48:31,542 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 17:48:31,542 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 17:48:31,542 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 17:48:31,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 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) [2022-12-13 17:48:31,560 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2022-12-13 17:48:31,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:48:31,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:48:31,565 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:31,565 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:31,565 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 17:48:31,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 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) [2022-12-13 17:48:31,568 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2022-12-13 17:48:31,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:48:31,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:48:31,569 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:31,569 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:31,573 INFO L748 eck$LassoCheckResult]: Stem: 36#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 47#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~5#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 27#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 45#select_features_returnLabel#1true 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; 22#valid_product_returnLabel#1true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 16#L875true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 4#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 60#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 32#L639-2true [2022-12-13 17:48:31,574 INFO L750 eck$LassoCheckResult]: Loop: 32#L639-2true assume !false; 37#L640true assume test_~splverifierCounter~0#1 < 4; 51#L641true test_~tmp~3#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 72#L649true assume !(0 != test_~tmp~3#1); 68#L649-2true test_~tmp___0~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 33#L659true assume !(0 != test_~tmp___0~0#1); 11#L659-2true test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 54#L669true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 12#L677true assume 0 != test_~tmp___1~0#1; 78#L677-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 57#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret45#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45#1;havoc __utac_acc__Specification5_spec__2_#t~ret45#1; 17#__utac_acc__Specification5_spec__2_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 48#L520true assume !(0 != ~pumpRunning~0); 14#L520-2true assume !(0 != ~systemActive~0); 41#L527-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 79#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret46#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; 30#L732true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 74#L732-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 80#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 32#L639-2true [2022-12-13 17:48:31,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:31,578 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-12-13 17:48:31,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:31,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347246453] [2022-12-13 17:48:31,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:31,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:31,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:48:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:31,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:48:31,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:31,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1534970164, now seen corresponding path program 1 times [2022-12-13 17:48:31,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:31,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67259851] [2022-12-13 17:48:31,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:31,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:31,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:48:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:31,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:48:31,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:31,697 INFO L85 PathProgramCache]: Analyzing trace with hash -105221821, now seen corresponding path program 1 times [2022-12-13 17:48:31,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:31,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268115780] [2022-12-13 17:48:31,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:31,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:48:31,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:31,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268115780] [2022-12-13 17:48:31,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268115780] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:31,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:31,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:48:31,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674088317] [2022-12-13 17:48:31,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:32,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:32,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:48:32,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:48:32,049 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 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 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-12-13 17:48:32,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:32,106 INFO L93 Difference]: Finished difference Result 83 states and 102 transitions. [2022-12-13 17:48:32,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 102 transitions. [2022-12-13 17:48:32,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-12-13 17:48:32,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 73 states and 92 transitions. [2022-12-13 17:48:32,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2022-12-13 17:48:32,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2022-12-13 17:48:32,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 92 transitions. [2022-12-13 17:48:32,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:48:32,117 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 92 transitions. [2022-12-13 17:48:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 92 transitions. [2022-12-13 17:48:32,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-12-13 17:48:32,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 72 states have internal predecessors, (92), 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) [2022-12-13 17:48:32,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2022-12-13 17:48:32,141 INFO L240 hiAutomatonCegarLoop]: Abstraction has 73 states and 92 transitions. [2022-12-13 17:48:32,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:48:32,146 INFO L428 stractBuchiCegarLoop]: Abstraction has 73 states and 92 transitions. [2022-12-13 17:48:32,146 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 17:48:32,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 92 transitions. [2022-12-13 17:48:32,147 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-12-13 17:48:32,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:48:32,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:48:32,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:32,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:32,149 INFO L748 eck$LassoCheckResult]: Stem: 232#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 233#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~5#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 221#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 222#select_features_returnLabel#1 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; 217#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 207#L875 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 187#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 188#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 227#L639-2 [2022-12-13 17:48:32,149 INFO L750 eck$LassoCheckResult]: Loop: 227#L639-2 assume !false; 228#L640 assume test_~splverifierCounter~0#1 < 4; 234#L641 test_~tmp~3#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 250#L649 assume !(0 != test_~tmp~3#1); 237#L649-2 test_~tmp___0~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 229#L659 assume !(0 != test_~tmp___0~0#1); 204#L659-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 205#L669 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 198#L677 assume 0 != test_~tmp___1~0#1; 199#L677-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 252#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret45#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45#1;havoc __utac_acc__Specification5_spec__2_#t~ret45#1; 208#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 209#L520 assume !(0 != ~pumpRunning~0); 202#L520-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 203#processEnvironment_returnLabel#1 assume { :end_inline_processEnvironment } true; 216#L527-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 239#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret46#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; 225#L732 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 224#L732-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 258#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 227#L639-2 [2022-12-13 17:48:32,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:32,150 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-12-13 17:48:32,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:32,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357975694] [2022-12-13 17:48:32,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:32,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:48:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:48:32,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:32,174 INFO L85 PathProgramCache]: Analyzing trace with hash 288466093, now seen corresponding path program 1 times [2022-12-13 17:48:32,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:32,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113702608] [2022-12-13 17:48:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:32,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:48:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:48:32,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:32,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1660991766, now seen corresponding path program 1 times [2022-12-13 17:48:32,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:32,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359285631] [2022-12-13 17:48:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:32,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:48:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:48:32,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:48:32,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359285631] [2022-12-13 17:48:32,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359285631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:48:32,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:48:32,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:48:32,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986768499] [2022-12-13 17:48:32,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:48:32,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:48:32,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:48:32,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:48:32,418 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-12-13 17:48:32,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:48:32,524 INFO L93 Difference]: Finished difference Result 262 states and 327 transitions. [2022-12-13 17:48:32,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 327 transitions. [2022-12-13 17:48:32,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 175 [2022-12-13 17:48:32,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 262 states and 327 transitions. [2022-12-13 17:48:32,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2022-12-13 17:48:32,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 262 [2022-12-13 17:48:32,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 262 states and 327 transitions. [2022-12-13 17:48:32,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:48:32,533 INFO L218 hiAutomatonCegarLoop]: Abstraction has 262 states and 327 transitions. [2022-12-13 17:48:32,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states and 327 transitions. [2022-12-13 17:48:32,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 135. [2022-12-13 17:48:32,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 135 states have (on average 1.237037037037037) internal successors, (167), 134 states have internal predecessors, (167), 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) [2022-12-13 17:48:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 167 transitions. [2022-12-13 17:48:32,542 INFO L240 hiAutomatonCegarLoop]: Abstraction has 135 states and 167 transitions. [2022-12-13 17:48:32,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:48:32,543 INFO L428 stractBuchiCegarLoop]: Abstraction has 135 states and 167 transitions. [2022-12-13 17:48:32,543 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 17:48:32,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 167 transitions. [2022-12-13 17:48:32,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 96 [2022-12-13 17:48:32,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 17:48:32,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 17:48:32,545 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:48:32,545 INFO L149 hiAutomatonCegarLoop]: 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] [2022-12-13 17:48:32,545 INFO L748 eck$LassoCheckResult]: Stem: 588#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 589#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~5#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 575#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 576#select_features_returnLabel#1 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; 570#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 560#L875 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 540#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 541#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet41#1, test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 615#L639-2 [2022-12-13 17:48:32,546 INFO L750 eck$LassoCheckResult]: Loop: 615#L639-2 assume !false; 656#L640 assume test_~splverifierCounter~0#1 < 4; 608#L641 test_~tmp~3#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 609#L649 assume !(0 != test_~tmp~3#1); 593#L649-2 test_~tmp___0~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 583#L659 assume !(0 != test_~tmp___0~0#1); 553#L659-2 test_~tmp___2~0#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 554#L669 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 611#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 556#L677-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret45#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 613#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret45#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret45#1;havoc __utac_acc__Specification5_spec__2_#t~ret45#1; 561#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 562#L520 assume !(0 != ~pumpRunning~0); 551#L520-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 552#processEnvironment_returnLabel#1 assume { :end_inline_processEnvironment } true; 569#L527-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~1#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~1#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 596#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret46#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; 579#L732 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 580#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret47#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~1#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1; 629#L736 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1#1); 658#L732-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 657#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 615#L639-2 [2022-12-13 17:48:32,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:32,546 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-12-13 17:48:32,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:32,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558523881] [2022-12-13 17:48:32,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:32,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:48:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:48:32,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:32,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1183505207, now seen corresponding path program 1 times [2022-12-13 17:48:32,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:32,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516482225] [2022-12-13 17:48:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:32,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:48:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:48:32,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:48:32,572 INFO L85 PathProgramCache]: Analyzing trace with hash -741293326, now seen corresponding path program 1 times [2022-12-13 17:48:32,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:48:32,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406270844] [2022-12-13 17:48:32,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:48:32,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:48:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:48:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:32,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:48:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:33,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:48:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:48:33,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 05:48:33 BoogieIcfgContainer [2022-12-13 17:48:33,345 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 17:48:33,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:48:33,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:48:33,346 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:48:33,346 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:48:31" (3/4) ... [2022-12-13 17:48:33,349 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 17:48:33,393 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:48:33,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:48:33,394 INFO L158 Benchmark]: Toolchain (without parser) took 2510.69ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 104.9MB in the beginning and 61.5MB in the end (delta: 43.4MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2022-12-13 17:48:33,394 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:48:33,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.80ms. Allocated memory is still 138.4MB. Free memory was 104.4MB in the beginning and 86.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 17:48:33,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.87ms. Allocated memory is still 138.4MB. Free memory was 86.7MB in the beginning and 84.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:48:33,395 INFO L158 Benchmark]: Boogie Preprocessor took 17.96ms. Allocated memory is still 138.4MB. Free memory was 84.5MB in the beginning and 82.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:48:33,395 INFO L158 Benchmark]: RCFGBuilder took 303.60ms. Allocated memory is still 138.4MB. Free memory was 82.5MB in the beginning and 67.2MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 17:48:33,395 INFO L158 Benchmark]: BuchiAutomizer took 1851.18ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 67.2MB in the beginning and 64.6MB in the end (delta: 2.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-12-13 17:48:33,396 INFO L158 Benchmark]: Witness Printer took 47.50ms. Allocated memory is still 178.3MB. Free memory was 64.6MB in the beginning and 61.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:48:33,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.80ms. Allocated memory is still 138.4MB. Free memory was 104.4MB in the beginning and 86.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.87ms. Allocated memory is still 138.4MB. Free memory was 86.7MB in the beginning and 84.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.96ms. Allocated memory is still 138.4MB. Free memory was 84.5MB in the beginning and 82.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.60ms. Allocated memory is still 138.4MB. Free memory was 82.5MB in the beginning and 67.2MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1851.18ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 67.2MB in the beginning and 64.6MB in the end (delta: 2.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 47.50ms. Allocated memory is still 178.3MB. Free memory was 64.6MB in the beginning and 61.5MB 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 135 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 127 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 685 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 685 mSDsluCounter, 613 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 372 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 241 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 639]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L422] int waterLevel = 1; [L423] int methaneLevelCritical = 0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L705] int switchedOnBeforeTS ; [L792] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L866] int retValue_acc ; [L867] int tmp ; [L871] FCALL select_helpers() [L872] FCALL select_features() [L873] CALL, EXPR valid_product() [L783] int retValue_acc ; [L786] retValue_acc = 1 [L787] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L873] RET, EXPR valid_product() [L873] tmp = valid_product() [L875] COND TRUE \read(tmp) [L877] FCALL setup() [L878] CALL runTest() [L859] CALL __utac_acc__Specification5_spec__1() [L710] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L859] RET __utac_acc__Specification5_spec__1() [L860] CALL test() [L630] int splverifierCounter ; [L631] int tmp ; [L632] int tmp___0 ; [L633] int tmp___1 ; [L634] int tmp___2 ; [L637] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L639] COND TRUE 1 [L641] COND TRUE splverifierCounter < 4 [L647] tmp = __VERIFIER_nondet_int() [L649] COND FALSE !(\read(tmp)) [L657] tmp___0 = __VERIFIER_nondet_int() [L659] COND FALSE !(\read(tmp___0)) [L667] tmp___2 = __VERIFIER_nondet_int() [L669] COND TRUE \read(tmp___2) [L671] CALL startSystem() [L623] systemActive = 1 [L671] RET startSystem() [L684] CALL timeShift() [L518] CALL __utac_acc__Specification5_spec__2() [L719] CALL, EXPR isPumpRunning() [L575] int retValue_acc ; [L578] retValue_acc = pumpRunning [L579] return (retValue_acc); [L719] RET, EXPR isPumpRunning() [L719] switchedOnBeforeTS = isPumpRunning() [L518] RET __utac_acc__Specification5_spec__2() [L520] COND FALSE !(\read(pumpRunning)) [L527] COND TRUE \read(systemActive) [L529] FCALL processEnvironment() [L535] CALL __utac_acc__Specification5_spec__3() [L725] int tmp ; [L726] int tmp___0 ; [L730] CALL, EXPR getWaterLevel() [L493] int retValue_acc ; [L496] retValue_acc = waterLevel [L497] return (retValue_acc); [L730] RET, EXPR getWaterLevel() [L730] tmp = getWaterLevel() [L732] COND TRUE tmp != 2 [L734] CALL, EXPR isPumpRunning() [L575] int retValue_acc ; [L578] retValue_acc = pumpRunning [L579] return (retValue_acc); [L734] RET, EXPR isPumpRunning() [L734] tmp___0 = isPumpRunning() [L736] COND FALSE !(\read(tmp___0)) [L535] RET __utac_acc__Specification5_spec__3() [L684] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 639]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L422] int waterLevel = 1; [L423] int methaneLevelCritical = 0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L705] int switchedOnBeforeTS ; [L792] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L866] int retValue_acc ; [L867] int tmp ; [L871] FCALL select_helpers() [L872] FCALL select_features() [L873] CALL, EXPR valid_product() [L783] int retValue_acc ; [L786] retValue_acc = 1 [L787] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L873] RET, EXPR valid_product() [L873] tmp = valid_product() [L875] COND TRUE \read(tmp) [L877] FCALL setup() [L878] CALL runTest() [L859] CALL __utac_acc__Specification5_spec__1() [L710] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L859] RET __utac_acc__Specification5_spec__1() [L860] CALL test() [L630] int splverifierCounter ; [L631] int tmp ; [L632] int tmp___0 ; [L633] int tmp___1 ; [L634] int tmp___2 ; [L637] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L639] COND TRUE 1 [L641] COND TRUE splverifierCounter < 4 [L647] tmp = __VERIFIER_nondet_int() [L649] COND FALSE !(\read(tmp)) [L657] tmp___0 = __VERIFIER_nondet_int() [L659] COND FALSE !(\read(tmp___0)) [L667] tmp___2 = __VERIFIER_nondet_int() [L669] COND TRUE \read(tmp___2) [L671] CALL startSystem() [L623] systemActive = 1 [L671] RET startSystem() [L684] CALL timeShift() [L518] CALL __utac_acc__Specification5_spec__2() [L719] CALL, EXPR isPumpRunning() [L575] int retValue_acc ; [L578] retValue_acc = pumpRunning [L579] return (retValue_acc); [L719] RET, EXPR isPumpRunning() [L719] switchedOnBeforeTS = isPumpRunning() [L518] RET __utac_acc__Specification5_spec__2() [L520] COND FALSE !(\read(pumpRunning)) [L527] COND TRUE \read(systemActive) [L529] FCALL processEnvironment() [L535] CALL __utac_acc__Specification5_spec__3() [L725] int tmp ; [L726] int tmp___0 ; [L730] CALL, EXPR getWaterLevel() [L493] int retValue_acc ; [L496] retValue_acc = waterLevel [L497] return (retValue_acc); [L730] RET, EXPR getWaterLevel() [L730] tmp = getWaterLevel() [L732] COND TRUE tmp != 2 [L734] CALL, EXPR isPumpRunning() [L575] int retValue_acc ; [L578] retValue_acc = pumpRunning [L579] return (retValue_acc); [L734] RET, EXPR isPumpRunning() [L734] tmp___0 = isPumpRunning() [L736] COND FALSE !(\read(tmp___0)) [L535] RET __utac_acc__Specification5_spec__3() [L684] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 17:48:33,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4942755-c543-4284-b0ed-adb1bed641cf/bin/uautomizer-uyxdKDjOR8/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)