./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt --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 75c635909fda15f7353b7ed1307d9cf39bd79421 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:14:39,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:14:39,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:14:39,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:14:39,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:14:39,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:14:39,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:14:39,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:14:39,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:14:39,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:14:39,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:14:39,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:14:39,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:14:39,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:14:39,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:14:39,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:14:39,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:14:39,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:14:39,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:14:39,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:14:39,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:14:39,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:14:39,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:14:39,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:14:39,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:14:39,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:14:39,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:14:39,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:14:39,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:14:39,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:14:39,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:14:39,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:14:39,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:14:39,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:14:39,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:14:39,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:14:39,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:14:39,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:14:39,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:14:39,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:14:39,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:14:39,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:14:39,737 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:14:39,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:14:39,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:14:39,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:14:39,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:14:39,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:14:39,749 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:14:39,749 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:14:39,749 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:14:39,749 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:14:39,751 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:14:39,751 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:14:39,752 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:14:39,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:14:39,752 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:14:39,752 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:14:39,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:14:39,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:14:39,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:14:39,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:14:39,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:14:39,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:14:39,754 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:14:39,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:14:39,755 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:14:39,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:14:39,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:14:39,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:14:39,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:14:39,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:14:39,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:14:39,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:14:39,759 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:14:39,759 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_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c635909fda15f7353b7ed1307d9cf39bd79421 [2021-10-13 00:14:40,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:14:40,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:14:40,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:14:40,157 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:14:40,159 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:14:40,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2021-10-13 00:14:40,266 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/data/b6e324e5b/c0d98a6867984b2f96294adbb2d36503/FLAG2939e7a4a [2021-10-13 00:14:40,884 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:14:40,884 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c [2021-10-13 00:14:40,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/data/b6e324e5b/c0d98a6867984b2f96294adbb2d36503/FLAG2939e7a4a [2021-10-13 00:14:41,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/data/b6e324e5b/c0d98a6867984b2f96294adbb2d36503 [2021-10-13 00:14:41,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:14:41,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:14:41,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:14:41,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:14:41,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:14:41,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:41,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ee2e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41, skipping insertion in model container [2021-10-13 00:14:41,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:41,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:14:41,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:14:41,723 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_bee7952d-0c09-4b3c-997b-1cb04195bf93/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c[18856,18869] [2021-10-13 00:14:41,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:14:41,745 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:14:41,831 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_bee7952d-0c09-4b3c-997b-1cb04195bf93/sv-benchmarks/c/product-lines/minepump_spec5_product62.cil.c[18856,18869] [2021-10-13 00:14:41,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:14:41,858 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:14:41,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41 WrapperNode [2021-10-13 00:14:41,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:14:41,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:14:41,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:14:41,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:14:41,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:41,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:41,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:14:41,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:14:41,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:14:41,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:14:42,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:42,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:42,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:42,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:42,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:42,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:42,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:42,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:14:42,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:14:42,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:14:42,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:14:42,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (1/1) ... [2021-10-13 00:14:42,145 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:42,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:42,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:42,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:14:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:14:42,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:14:42,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:14:42,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:14:43,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:14:43,440 INFO L299 CfgBuilder]: Removed 364 assume(true) statements. [2021-10-13 00:14:43,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:43 BoogieIcfgContainer [2021-10-13 00:14:43,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:14:43,444 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:14:43,445 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:14:43,449 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:14:43,450 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:14:43,450 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:14:41" (1/3) ... [2021-10-13 00:14:43,452 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69b27402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:14:43, skipping insertion in model container [2021-10-13 00:14:43,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:14:43,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:41" (2/3) ... [2021-10-13 00:14:43,453 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69b27402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:14:43, skipping insertion in model container [2021-10-13 00:14:43,453 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:14:43,453 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:43" (3/3) ... [2021-10-13 00:14:43,455 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2021-10-13 00:14:43,528 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:14:43,528 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:14:43,529 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:14:43,529 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:14:43,529 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:14:43,529 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:14:43,530 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:14:43,530 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:14:43,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 231 states, 230 states have (on average 1.5) internal successors, (345), 230 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:14:43,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-10-13 00:14:43,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:43,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:43,604 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:43,604 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:43,605 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:14:43,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 231 states, 230 states have (on average 1.5) internal successors, (345), 230 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:14:43,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2021-10-13 00:14:43,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:43,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:43,619 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:43,619 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:43,625 INFO L791 eck$LassoCheckResult]: Stem: 219#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.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;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 164#L-1true havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~11, main_~tmp~11;havoc main_~retValue_acc~11;havoc main_~tmp~11; 22#L1027true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 34#L1035true main_#t~ret82 := valid_product_#res;main_~tmp~11 := main_#t~ret82;havoc main_#t~ret82; 135#L982true assume 0 != main_~tmp~11; 65#L955true ~switchedOnBeforeTS~0 := 0; 213#L314true havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 105#L335-1true [2021-10-13 00:14:43,626 INFO L793 eck$LassoCheckResult]: Loop: 105#L335-1true assume !false; 172#L371true assume test_~splverifierCounter~0 < 4; 158#L372true test_~tmp~7 := test_#t~nondet33;havoc test_#t~nondet33; 181#L380true assume !(0 != test_~tmp~7); 139#L380-1true test_~tmp___0~3 := test_#t~nondet34;havoc test_#t~nondet34; 200#L390true assume !(0 != test_~tmp___0~3); 203#L390-1true test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 69#L400true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 72#L408-2true havoc __utac_acc__Specification5_spec__2_#t~ret30;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 228#L219true __utac_acc__Specification5_spec__2_#t~ret30 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret30;havoc __utac_acc__Specification5_spec__2_#t~ret30; 20#L324true assume !(0 != ~pumpRunning~0); 232#L65true assume !(0 != ~systemActive~0); 58#L72true havoc __utac_acc__Specification5_spec__3_#t~ret31, __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 28#L868true __utac_acc__Specification5_spec__3_#t~ret31 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret31;havoc __utac_acc__Specification5_spec__3_#t~ret31; 23#L335true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 105#L335-1true [2021-10-13 00:14:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:43,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:14:43,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:43,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348752693] [2021-10-13 00:14:43,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:43,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:43,959 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:44,176 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:44,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:44,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1017841037, now seen corresponding path program 1 times [2021-10-13 00:14:44,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:44,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440590157] [2021-10-13 00:14:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:44,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:44,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:14:44,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440590157] [2021-10-13 00:14:44,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440590157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:14:44,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:14:44,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:14:44,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869657134] [2021-10-13 00:14:44,278 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:14:44,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:14:44,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:14:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:14:44,297 INFO L87 Difference]: Start difference. First operand has 231 states, 230 states have (on average 1.5) internal successors, (345), 230 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:14:44,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:14:44,346 INFO L93 Difference]: Finished difference Result 231 states and 335 transitions. [2021-10-13 00:14:44,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:14:44,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 335 transitions. [2021-10-13 00:14:44,354 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-13 00:14:44,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 224 states and 327 transitions. [2021-10-13 00:14:44,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 224 [2021-10-13 00:14:44,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2021-10-13 00:14:44,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 327 transitions. [2021-10-13 00:14:44,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:14:44,366 INFO L681 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2021-10-13 00:14:44,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 327 transitions. [2021-10-13 00:14:44,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2021-10-13 00:14:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 224 states have (on average 1.4598214285714286) internal successors, (327), 223 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:14:44,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 327 transitions. [2021-10-13 00:14:44,408 INFO L704 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2021-10-13 00:14:44,408 INFO L587 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2021-10-13 00:14:44,409 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:14:44,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states and 327 transitions. [2021-10-13 00:14:44,411 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-13 00:14:44,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:44,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:44,412 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:44,412 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:44,413 INFO L791 eck$LassoCheckResult]: Stem: 694#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.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;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 676#L-1 havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~11, main_~tmp~11;havoc main_~retValue_acc~11;havoc main_~tmp~11; 511#L1027 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 512#L1035 main_#t~ret82 := valid_product_#res;main_~tmp~11 := main_#t~ret82;havoc main_#t~ret82; 531#L982 assume 0 != main_~tmp~11; 577#L955 ~switchedOnBeforeTS~0 := 0; 578#L314 havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 515#L335-1 [2021-10-13 00:14:44,413 INFO L793 eck$LassoCheckResult]: Loop: 515#L335-1 assume !false; 627#L371 assume test_~splverifierCounter~0 < 4; 673#L372 test_~tmp~7 := test_#t~nondet33;havoc test_#t~nondet33; 674#L380 assume !(0 != test_~tmp~7); 581#L380-1 test_~tmp___0~3 := test_#t~nondet34;havoc test_#t~nondet34; 659#L390 assume !(0 != test_~tmp___0~3); 653#L390-1 test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 582#L400 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 584#L408-2 havoc __utac_acc__Specification5_spec__2_#t~ret30;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 589#L219 __utac_acc__Specification5_spec__2_#t~ret30 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret30;havoc __utac_acc__Specification5_spec__2_#t~ret30; 506#L324 assume !(0 != ~pumpRunning~0); 507#L65 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 602#L149 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 603#L123-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 560#L97-3 assume !(0 == ~pumpRunning~0); 489#L72 havoc __utac_acc__Specification5_spec__3_#t~ret31, __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 523#L868 __utac_acc__Specification5_spec__3_#t~ret31 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret31;havoc __utac_acc__Specification5_spec__3_#t~ret31; 513#L335 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 515#L335-1 [2021-10-13 00:14:44,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:44,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:14:44,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:44,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562585707] [2021-10-13 00:14:44,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:44,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:44,484 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:44,551 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:44,552 INFO L82 PathProgramCache]: Analyzing trace with hash 901397577, now seen corresponding path program 1 times [2021-10-13 00:14:44,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:44,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009983459] [2021-10-13 00:14:44,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:44,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:44,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:44,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:14:44,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009983459] [2021-10-13 00:14:44,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009983459] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:14:44,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:14:44,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:14:44,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072244428] [2021-10-13 00:14:44,575 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:14:44,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:14:44,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:14:44,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:14:44,577 INFO L87 Difference]: Start difference. First operand 224 states and 327 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:14:44,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:14:44,695 INFO L93 Difference]: Finished difference Result 228 states and 314 transitions. [2021-10-13 00:14:44,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:14:44,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 314 transitions. [2021-10-13 00:14:44,699 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2021-10-13 00:14:44,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 314 transitions. [2021-10-13 00:14:44,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2021-10-13 00:14:44,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2021-10-13 00:14:44,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 314 transitions. [2021-10-13 00:14:44,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:14:44,706 INFO L681 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-10-13 00:14:44,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 314 transitions. [2021-10-13 00:14:44,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2021-10-13 00:14:44,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 228 states have (on average 1.3771929824561404) internal successors, (314), 227 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:14:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2021-10-13 00:14:44,719 INFO L704 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-10-13 00:14:44,719 INFO L587 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2021-10-13 00:14:44,719 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:14:44,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 314 transitions. [2021-10-13 00:14:44,722 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2021-10-13 00:14:44,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:44,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:44,724 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:44,724 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] [2021-10-13 00:14:44,724 INFO L791 eck$LassoCheckResult]: Stem: 1109#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.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;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1024#L-1 havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~11, main_~tmp~11;havoc main_~retValue_acc~11;havoc main_~tmp~11; 987#L1027 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 988#L1035 main_#t~ret82 := valid_product_#res;main_~tmp~11 := main_#t~ret82;havoc main_#t~ret82; 938#L982 assume 0 != main_~tmp~11; 939#L955 ~switchedOnBeforeTS~0 := 0; 1067#L314 havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 993#L335-1 [2021-10-13 00:14:44,725 INFO L793 eck$LassoCheckResult]: Loop: 993#L335-1 assume !false; 1053#L371 assume test_~splverifierCounter~0 < 4; 1013#L372 test_~tmp~7 := test_#t~nondet33;havoc test_#t~nondet33; 1014#L380 assume !(0 != test_~tmp~7); 949#L380-1 test_~tmp___0~3 := test_#t~nondet34;havoc test_#t~nondet34; 950#L390 assume !(0 != test_~tmp___0~3); 935#L390-1 test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 1073#L400 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1075#L408-2 havoc __utac_acc__Specification5_spec__2_#t~ret30;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1078#L219 __utac_acc__Specification5_spec__2_#t~ret30 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret30;havoc __utac_acc__Specification5_spec__2_#t~ret30; 977#L324 assume !(0 != ~pumpRunning~0); 978#L65 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1091#L149 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1008#L123-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1009#L97-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1010#L876-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1011#L881-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 1090#L268-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 943#L268-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 944#L274-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1047#L101-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 957#L72 havoc __utac_acc__Specification5_spec__3_#t~ret31, __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1000#L868 __utac_acc__Specification5_spec__3_#t~ret31 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret31;havoc __utac_acc__Specification5_spec__3_#t~ret31; 991#L335 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6); 993#L335-1 [2021-10-13 00:14:44,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:44,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 00:14:44,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:44,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788470102] [2021-10-13 00:14:44,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:44,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:44,774 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:44,850 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:44,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:44,858 INFO L82 PathProgramCache]: Analyzing trace with hash -9342763, now seen corresponding path program 1 times [2021-10-13 00:14:44,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:44,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535885277] [2021-10-13 00:14:44,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:44,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:44,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:44,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:14:44,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535885277] [2021-10-13 00:14:44,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535885277] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:14:44,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:14:44,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:14:44,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145680381] [2021-10-13 00:14:44,937 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:14:44,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:14:44,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:14:44,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:14:44,938 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. cyclomatic complexity: 88 Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:14:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:14:45,287 INFO L93 Difference]: Finished difference Result 1078 states and 1497 transitions. [2021-10-13 00:14:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:14:45,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1078 states and 1497 transitions. [2021-10-13 00:14:45,301 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 733 [2021-10-13 00:14:45,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1078 states to 1078 states and 1497 transitions. [2021-10-13 00:14:45,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1078 [2021-10-13 00:14:45,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1078 [2021-10-13 00:14:45,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1078 states and 1497 transitions. [2021-10-13 00:14:45,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:14:45,319 INFO L681 BuchiCegarLoop]: Abstraction has 1078 states and 1497 transitions. [2021-10-13 00:14:45,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states and 1497 transitions. [2021-10-13 00:14:45,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 446. [2021-10-13 00:14:45,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 446 states have (on average 1.3654708520179373) internal successors, (609), 445 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:14:45,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 609 transitions. [2021-10-13 00:14:45,357 INFO L704 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2021-10-13 00:14:45,357 INFO L587 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2021-10-13 00:14:45,358 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:14:45,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 609 transitions. [2021-10-13 00:14:45,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 310 [2021-10-13 00:14:45,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:45,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:45,362 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:14:45,362 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] [2021-10-13 00:14:45,363 INFO L791 eck$LassoCheckResult]: Stem: 2462#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.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;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 2353#L-1 havoc main_#res;havoc main_#t~ret82, main_~retValue_acc~11, main_~tmp~11;havoc main_~retValue_acc~11;havoc main_~tmp~11; 2316#L1027 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 2317#L1035 main_#t~ret82 := valid_product_#res;main_~tmp~11 := main_#t~ret82;havoc main_#t~ret82; 2263#L982 assume 0 != main_~tmp~11; 2264#L955 ~switchedOnBeforeTS~0 := 0; 2410#L314 havoc test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_#t~nondet36, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2450#L335-1 [2021-10-13 00:14:45,363 INFO L793 eck$LassoCheckResult]: Loop: 2450#L335-1 assume !false; 2457#L371 assume test_~splverifierCounter~0 < 4; 2666#L372 test_~tmp~7 := test_#t~nondet33;havoc test_#t~nondet33; 2663#L380 assume !(0 != test_~tmp~7); 2661#L380-1 test_~tmp___0~3 := test_#t~nondet34;havoc test_#t~nondet34; 2660#L390 assume !(0 != test_~tmp___0~3); 2658#L390-1 test_~tmp___2~0 := test_#t~nondet35;havoc test_#t~nondet35; 2657#L400 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2655#L408-2 havoc __utac_acc__Specification5_spec__2_#t~ret30;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2654#L219 __utac_acc__Specification5_spec__2_#t~ret30 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret30;havoc __utac_acc__Specification5_spec__2_#t~ret30; 2306#L324 assume !(0 != ~pumpRunning~0); 2307#L65 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 2476#L149 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 2647#L123-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2378#L97-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 2337#L876-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 2338#L881-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 2435#L268-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 2273#L268-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2274#L274-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 2380#L101-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2287#L72 havoc __utac_acc__Specification5_spec__3_#t~ret31, __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_~tmp~6, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~6;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 2532#L868 __utac_acc__Specification5_spec__3_#t~ret31 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~6 := __utac_acc__Specification5_spec__3_#t~ret31;havoc __utac_acc__Specification5_spec__3_#t~ret31; 2533#L335 assume 2 != __utac_acc__Specification5_spec__3_~tmp~6;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2528#L219-1 __utac_acc__Specification5_spec__3_#t~ret32 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret32;havoc __utac_acc__Specification5_spec__3_#t~ret32; 2529#L339 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 2450#L335-1 [2021-10-13 00:14:45,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:45,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-13 00:14:45,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:45,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354109775] [2021-10-13 00:14:45,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:45,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:45,394 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:45,431 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:45,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:45,432 INFO L82 PathProgramCache]: Analyzing trace with hash -388467952, now seen corresponding path program 1 times [2021-10-13 00:14:45,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:45,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424883864] [2021-10-13 00:14:45,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:45,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:45,438 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:45,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:45,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:45,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1940287702, now seen corresponding path program 1 times [2021-10-13 00:14:45,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:45,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193524047] [2021-10-13 00:14:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:45,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:45,480 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:45,546 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:46,171 WARN L207 SmtUtils]: Spent 1.00 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:16:47,653 WARN L207 SmtUtils]: Spent 28.49 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:16:47,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:16:47 BoogieIcfgContainer [2021-10-13 00:16:47,845 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:16:47,845 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:16:47,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:16:47,846 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:16:47,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:43" (3/4) ... [2021-10-13 00:16:47,849 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:16:47,978 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:16:47,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:16:47,979 INFO L168 Benchmark]: Toolchain (without parser) took 126812.18 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 72.5 MB in the beginning and 94.3 MB in the end (delta: -21.8 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:47,980 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 109.1 MB. Free memory is still 90.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:16:47,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.11 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 78.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:47,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.64 ms. Allocated memory is still 109.1 MB. Free memory was 78.3 MB in the beginning and 72.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:47,982 INFO L168 Benchmark]: Boogie Preprocessor took 136.40 ms. Allocated memory is still 109.1 MB. Free memory was 72.6 MB in the beginning and 68.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:47,983 INFO L168 Benchmark]: RCFGBuilder took 1323.93 ms. Allocated memory is still 109.1 MB. Free memory was 68.7 MB in the beginning and 47.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:47,983 INFO L168 Benchmark]: BuchiAutomizer took 124400.64 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 47.6 MB in the beginning and 97.2 MB in the end (delta: -49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:47,984 INFO L168 Benchmark]: Witness Printer took 132.72 ms. Allocated memory is still 136.3 MB. Free memory was 97.2 MB in the beginning and 94.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:47,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 109.1 MB. Free memory is still 90.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 691.11 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 78.3 MB in the end (delta: -6.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 120.64 ms. Allocated memory is still 109.1 MB. Free memory was 78.3 MB in the beginning and 72.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 136.40 ms. Allocated memory is still 109.1 MB. Free memory was 72.6 MB in the beginning and 68.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1323.93 ms. Allocated memory is still 109.1 MB. Free memory was 68.7 MB in the beginning and 47.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 124400.64 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 47.6 MB in the beginning and 97.2 MB in the end (delta: -49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. * Witness Printer took 132.72 ms. Allocated memory is still 136.3 MB. Free memory was 97.2 MB in the beginning and 94.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 5 locations. The remainder module has 446 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 124.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 123.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 77.9ms AutomataMinimizationTime, 3 MinimizatonAttempts, 632 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 446 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1027 SDtfs, 1807 SDslu, 1326 SDs, 0 SdLazy, 232 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 282.5ms Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 370]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=25554} State at position 1 is {NULL=0, NULL=0, NULL=25571, NULL=25554, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f66faf1=0, NULL=0, NULL=25579, NULL=0, NULL=25567, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@195953bf=0, NULL=0, retValue_acc=0, tmp=0, NULL=25566, NULL=0, tmp___1=0, NULL=25558, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3251d86b=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6deab207=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e519349=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c5c4e9b=0, NULL=25561, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12bf189a=0, NULL=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@564dbd37=0, NULL=25573, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a6da412=0, NULL=25562, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=25570, \result=1, NULL=0, tmp=1, NULL=0, NULL=25582, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ce1b27=0, tmp___0=0, NULL=0, NULL=25578, NULL=25556, tmp=0, head=0, tmp=0, NULL=25574, NULL=25559, NULL=25560, NULL=25572, tmp=1, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, tmp=0, switchedOnBeforeTS=0, NULL=25568, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=25580, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=25564, tmp___0=0, \result=0, NULL=25565, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bd64d91=0, NULL=0, NULL=25563, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78cbb6f1=0, NULL=0, NULL=0, NULL=25576, NULL=25577, NULL=25575, tmp___2=74, splverifierCounter=0, NULL=0, NULL=0, NULL=25555, NULL=25557, retValue_acc=0, NULL=25581, NULL=0, NULL=25569} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L308] int switchedOnBeforeTS ; [L596] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L793] int waterLevel = 1; [L794] int methaneLevelCritical = 0; [L896] int cleanupTimeShifts = 4; [L973] int retValue_acc ; [L974] int tmp ; [L1031] int retValue_acc ; [L1034] retValue_acc = 1 [L1035] return (retValue_acc); [L980] tmp = valid_product() [L982] COND TRUE \read(tmp) [L313] switchedOnBeforeTS = 0 [L361] int splverifierCounter ; [L362] int tmp ; [L363] int tmp___0 ; [L364] int tmp___1 ; [L365] int tmp___2 ; [L368] splverifierCounter = 0 Loop: [L370] COND TRUE 1 [L372] COND TRUE splverifierCounter < 4 [L378] tmp = __VERIFIER_nondet_int() [L380] COND FALSE !(\read(tmp)) [L388] tmp___0 = __VERIFIER_nondet_int() [L390] COND FALSE !(\read(tmp___0)) [L398] tmp___2 = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp___2) [L301] systemActive = 1 [L215] int retValue_acc ; [L218] retValue_acc = pumpRunning [L219] return (retValue_acc); [L322] switchedOnBeforeTS = isPumpRunning() [L65] COND FALSE !(\read(pumpRunning)) [L72] COND TRUE \read(systemActive) [L146] int tmp ; [L149] COND FALSE !(\read(pumpRunning)) [L120] int tmp ; [L123] COND FALSE !(\read(pumpRunning)) [L94] int tmp ; [L97] COND TRUE ! pumpRunning [L260] int retValue_acc ; [L261] int tmp ; [L262] int tmp___0 ; [L873] int retValue_acc ; [L876] COND TRUE waterLevel < 2 [L877] retValue_acc = 1 [L878] return (retValue_acc); [L266] tmp = isHighWaterSensorDry() [L268] COND TRUE \read(tmp) [L269] tmp___0 = 0 [L273] retValue_acc = tmp___0 [L274] return (retValue_acc); [L99] tmp = isHighWaterLevel() [L101] COND FALSE !(\read(tmp)) [L328] int tmp ; [L329] int tmp___0 ; [L864] int retValue_acc ; [L867] retValue_acc = waterLevel [L868] return (retValue_acc); [L333] tmp = getWaterLevel() [L335] COND TRUE tmp != 2 [L215] int retValue_acc ; [L218] retValue_acc = pumpRunning [L219] return (retValue_acc); [L337] tmp___0 = isPumpRunning() [L339] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:16:48,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bee7952d-0c09-4b3c-997b-1cb04195bf93/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...