./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa --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 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:02:10,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:02:10,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:02:10,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:02:10,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:02:10,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:02:10,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:02:10,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:02:10,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:02:10,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:02:10,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:02:10,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:02:10,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:02:10,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:02:10,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:02:10,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:02:10,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:02:10,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:02:10,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:02:10,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:02:10,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:02:10,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:02:10,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:02:10,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:02:10,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:02:10,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:02:10,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:02:10,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:02:10,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:02:10,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:02:10,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:02:10,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:02:10,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:02:10,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:02:10,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:02:10,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:02:10,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:02:10,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:02:10,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:02:10,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:02:10,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:02:10,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 19:02:10,602 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:02:10,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:02:10,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:02:10,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:02:10,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:02:10,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:02:10,604 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:02:10,604 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 19:02:10,604 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 19:02:10,604 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 19:02:10,604 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 19:02:10,604 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 19:02:10,604 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 19:02:10,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:02:10,605 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:02:10,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:02:10,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:02:10,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:02:10,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:02:10,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 19:02:10,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 19:02:10,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 19:02:10,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:02:10,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:02:10,606 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 19:02:10,606 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:02:10,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 19:02:10,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:02:10,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:02:10,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:02:10,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:02:10,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:02:10,608 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 19:02:10,608 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_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68c6d60a43782147acd714b0904a144255717c2aa47fb6b6f8991672a1483369 [2021-12-06 19:02:10,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:02:10,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:02:10,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:02:10,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:02:10,817 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:02:10,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2021-12-06 19:02:10,861 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/data/944bafd96/81639d59f85c4d0b873fae1e2a0ec8db/FLAG4b79eaa0c [2021-12-06 19:02:11,253 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:02:11,254 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2021-12-06 19:02:11,263 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/data/944bafd96/81639d59f85c4d0b873fae1e2a0ec8db/FLAG4b79eaa0c [2021-12-06 19:02:11,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/data/944bafd96/81639d59f85c4d0b873fae1e2a0ec8db [2021-12-06 19:02:11,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:02:11,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:02:11,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:02:11,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:02:11,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:02:11,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214fd46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11, skipping insertion in model container [2021-12-06 19:02:11,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:02:11,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:02:11,441 WARN L230 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_dbab29b4-f2dc-4319-b735-bc08a937ff2f/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c[1605,1618] [2021-12-06 19:02:11,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:02:11,523 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:02:11,533 WARN L230 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_dbab29b4-f2dc-4319-b735-bc08a937ff2f/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c[1605,1618] [2021-12-06 19:02:11,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:02:11,587 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:02:11,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11 WrapperNode [2021-12-06 19:02:11,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:02:11,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:02:11,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:02:11,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:02:11,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,632 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 54, calls inlined = 85, statements flattened = 624 [2021-12-06 19:02:11,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:02:11,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:02:11,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:02:11,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:02:11,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:02:11,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:02:11,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:02:11,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:02:11,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (1/1) ... [2021-12-06 19:02:11,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:02:11,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:02:11,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:02:11,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 19:02:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:02:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:02:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:02:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:02:11,783 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:02:11,784 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:02:12,075 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:02:12,082 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:02:12,082 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 19:02:12,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:02:12 BoogieIcfgContainer [2021-12-06 19:02:12,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:02:12,085 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 19:02:12,085 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 19:02:12,087 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 19:02:12,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:02:12,088 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 07:02:11" (1/3) ... [2021-12-06 19:02:12,088 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32ee3444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:02:12, skipping insertion in model container [2021-12-06 19:02:12,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:02:12,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:02:11" (2/3) ... [2021-12-06 19:02:12,089 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32ee3444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:02:12, skipping insertion in model container [2021-12-06 19:02:12,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:02:12,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:02:12" (3/3) ... [2021-12-06 19:02:12,090 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2021-12-06 19:02:12,121 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 19:02:12,121 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 19:02:12,121 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 19:02:12,121 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 19:02:12,121 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 19:02:12,121 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 19:02:12,121 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 19:02:12,121 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 19:02:12,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 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) [2021-12-06 19:02:12,155 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2021-12-06 19:02:12,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:02:12,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:02:12,160 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:02:12,160 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] [2021-12-06 19:02:12,160 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 19:02:12,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 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) [2021-12-06 19:02:12,168 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2021-12-06 19:02:12,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:02:12,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:02:12,169 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:02:12,169 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] [2021-12-06 19:02:12,173 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 48#L894true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 156#L887true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 131#L902true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 117#L151true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 64#L122true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 71#L173true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 17#L917-2true [2021-12-06 19:02:12,173 INFO L793 eck$LassoCheckResult]: Loop: 17#L917-2true assume !false; 20#L918true assume test_~splverifierCounter~0#1 < 4; 119#L919true test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 18#L927true assume !(0 != test_~tmp~8#1); 34#L927-2true test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 118#L937true assume !(0 != test_~tmp___0~2#1); 136#L937-2true test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 66#L947true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 101#L955true assume 0 != test_~tmp___1~0#1; 77#L955-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 14#L804true __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 43#L183true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 153#L693true assume !(0 != ~pumpRunning~0); 73#L693-2true assume !(0 != ~systemActive~0); 82#L700-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 146#L661true __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 133#L194true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 9#L194-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 93#L710true assume { :end_inline_timeShift } true; 17#L917-2true [2021-12-06 19:02:12,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:12,177 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-06 19:02:12,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:12,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032746388] [2021-12-06 19:02:12,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:12,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:12,264 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:02:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:12,320 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:02:12,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:12,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1127540876, now seen corresponding path program 1 times [2021-12-06 19:02:12,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:12,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900471544] [2021-12-06 19:02:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:12,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:12,332 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:02:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:12,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:02:12,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:12,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1737678077, now seen corresponding path program 1 times [2021-12-06 19:02:12,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:12,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235353278] [2021-12-06 19:02:12,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:12,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:02:12,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:02:12,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:02:12,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235353278] [2021-12-06 19:02:12,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235353278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:02:12,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:02:12,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:02:12,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850979737] [2021-12-06 19:02:12,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:02:12,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:02:12,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:02:12,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:02:12,592 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:02:12,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:02:12,659 INFO L93 Difference]: Finished difference Result 164 states and 213 transitions. [2021-12-06 19:02:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:02:12,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 213 transitions. [2021-12-06 19:02:12,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2021-12-06 19:02:12,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 154 states and 203 transitions. [2021-12-06 19:02:12,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2021-12-06 19:02:12,678 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2021-12-06 19:02:12,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 154 states and 203 transitions. [2021-12-06 19:02:12,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:02:12,679 INFO L681 BuchiCegarLoop]: Abstraction has 154 states and 203 transitions. [2021-12-06 19:02:12,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states and 203 transitions. [2021-12-06 19:02:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-12-06 19:02:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 154 states have (on average 1.3181818181818181) internal successors, (203), 153 states have internal predecessors, (203), 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) [2021-12-06 19:02:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 203 transitions. [2021-12-06 19:02:12,709 INFO L704 BuchiCegarLoop]: Abstraction has 154 states and 203 transitions. [2021-12-06 19:02:12,709 INFO L587 BuchiCegarLoop]: Abstraction has 154 states and 203 transitions. [2021-12-06 19:02:12,709 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 19:02:12,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 154 states and 203 transitions. [2021-12-06 19:02:12,711 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2021-12-06 19:02:12,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:02:12,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:02:12,712 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:02:12,712 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] [2021-12-06 19:02:12,712 INFO L791 eck$LassoCheckResult]: Stem: 500#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 436#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 423#L894 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 424#L887 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 495#L902 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 486#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 447#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 448#L173 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 375#L917-2 [2021-12-06 19:02:12,712 INFO L793 eck$LassoCheckResult]: Loop: 375#L917-2 assume !false; 376#L918 assume test_~splverifierCounter~0#1 < 4; 385#L919 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 377#L927 assume !(0 != test_~tmp~8#1); 379#L927-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 409#L937 assume !(0 != test_~tmp___0~2#1); 488#L937-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 451#L947 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 416#L868 assume { :end_inline_startSystem } true; 417#L955-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 368#L804 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 369#L183 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 418#L693 assume !(0 != ~pumpRunning~0); 350#L693-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 406#L751 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 390#L725-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 391#L717-3 assume { :end_inline_processEnvironment__wrappee__base } true; 362#L725-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 353#L751-1 assume { :end_inline_processEnvironment } true; 354#L700-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 464#L661 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 494#L194 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 357#L194-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 358#L710 assume { :end_inline_timeShift } true; 375#L917-2 [2021-12-06 19:02:12,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:12,713 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-06 19:02:12,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:12,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413945063] [2021-12-06 19:02:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:12,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:12,726 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:02:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:12,740 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:02:12,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:12,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1470608784, now seen corresponding path program 1 times [2021-12-06 19:02:12,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:12,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031546992] [2021-12-06 19:02:12,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:12,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:02:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:02:12,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:02:12,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031546992] [2021-12-06 19:02:12,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031546992] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:02:12,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:02:12,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:02:12,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372535741] [2021-12-06 19:02:12,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:02:12,756 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 19:02:12,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:02:12,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:02:12,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:02:12,757 INFO L87 Difference]: Start difference. First operand 154 states and 203 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2021-12-06 19:02:12,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:02:12,807 INFO L93 Difference]: Finished difference Result 219 states and 278 transitions. [2021-12-06 19:02:12,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:02:12,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 278 transitions. [2021-12-06 19:02:12,809 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2021-12-06 19:02:12,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 278 transitions. [2021-12-06 19:02:12,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2021-12-06 19:02:12,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2021-12-06 19:02:12,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 278 transitions. [2021-12-06 19:02:12,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:02:12,813 INFO L681 BuchiCegarLoop]: Abstraction has 219 states and 278 transitions. [2021-12-06 19:02:12,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 278 transitions. [2021-12-06 19:02:12,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-12-06 19:02:12,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 219 states have (on average 1.269406392694064) internal successors, (278), 218 states have internal predecessors, (278), 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) [2021-12-06 19:02:12,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 278 transitions. [2021-12-06 19:02:12,821 INFO L704 BuchiCegarLoop]: Abstraction has 219 states and 278 transitions. [2021-12-06 19:02:12,821 INFO L587 BuchiCegarLoop]: Abstraction has 219 states and 278 transitions. [2021-12-06 19:02:12,821 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 19:02:12,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 278 transitions. [2021-12-06 19:02:12,823 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2021-12-06 19:02:12,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:02:12,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:02:12,824 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:02:12,824 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:02:12,824 INFO L791 eck$LassoCheckResult]: Stem: 885#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 814#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 801#L894 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 802#L887 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 876#L902 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 868#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 826#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 827#L173 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 752#L917-2 [2021-12-06 19:02:12,824 INFO L793 eck$LassoCheckResult]: Loop: 752#L917-2 assume !false; 753#L918 assume test_~splverifierCounter~0#1 < 4; 759#L919 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 754#L927 assume !(0 != test_~tmp~8#1); 756#L927-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 784#L937 assume !(0 != test_~tmp___0~2#1); 870#L937-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 828#L947 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 792#L868 assume { :end_inline_startSystem } true; 793#L955-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 746#L804 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 747#L183 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 796#L693 assume !(0 != ~pumpRunning~0); 836#L693-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 782#L751 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 765#L725-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 766#L669-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 807#L674-1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 844#L853-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 805#L853-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 806#L859-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 887#L729-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 879#L717-2 assume { :end_inline_processEnvironment__wrappee__base } true; 742#L725-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 732#L751-1 assume { :end_inline_processEnvironment } true; 733#L700-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 845#L661 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 878#L194 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1#1); 736#L194-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 737#L710 assume { :end_inline_timeShift } true; 752#L917-2 [2021-12-06 19:02:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-06 19:02:12,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:12,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717445140] [2021-12-06 19:02:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:12,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:12,833 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:02:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:12,843 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:02:12,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:12,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1819503320, now seen corresponding path program 1 times [2021-12-06 19:02:12,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:12,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522431915] [2021-12-06 19:02:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:12,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:02:12,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:02:12,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:02:12,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522431915] [2021-12-06 19:02:12,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522431915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:02:12,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:02:12,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:02:12,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757376673] [2021-12-06 19:02:12,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:02:12,877 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 19:02:12,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:02:12,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:02:12,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:02:12,878 INFO L87 Difference]: Start difference. First operand 219 states and 278 transitions. cyclomatic complexity: 61 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-12-06 19:02:12,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:02:12,987 INFO L93 Difference]: Finished difference Result 618 states and 768 transitions. [2021-12-06 19:02:12,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:02:12,988 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 618 states and 768 transitions. [2021-12-06 19:02:12,992 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 399 [2021-12-06 19:02:12,996 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 618 states to 618 states and 768 transitions. [2021-12-06 19:02:12,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 618 [2021-12-06 19:02:12,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 618 [2021-12-06 19:02:12,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 618 states and 768 transitions. [2021-12-06 19:02:12,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:02:13,000 INFO L681 BuchiCegarLoop]: Abstraction has 618 states and 768 transitions. [2021-12-06 19:02:13,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states and 768 transitions. [2021-12-06 19:02:13,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 428. [2021-12-06 19:02:13,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 428 states have (on average 1.2429906542056075) internal successors, (532), 427 states have internal predecessors, (532), 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) [2021-12-06 19:02:13,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 532 transitions. [2021-12-06 19:02:13,016 INFO L704 BuchiCegarLoop]: Abstraction has 428 states and 532 transitions. [2021-12-06 19:02:13,016 INFO L587 BuchiCegarLoop]: Abstraction has 428 states and 532 transitions. [2021-12-06 19:02:13,016 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 19:02:13,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 428 states and 532 transitions. [2021-12-06 19:02:13,019 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 302 [2021-12-06 19:02:13,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:02:13,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:02:13,020 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:02:13,020 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:02:13,020 INFO L791 eck$LassoCheckResult]: Stem: 1753#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1672#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1656#L894 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1657#L887 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1741#L902 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1732#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1685#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1686#L173 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1605#L917-2 [2021-12-06 19:02:13,020 INFO L793 eck$LassoCheckResult]: Loop: 1605#L917-2 assume !false; 1606#L918 assume test_~splverifierCounter~0#1 < 4; 1612#L919 test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2006#L927 assume !(0 != test_~tmp~8#1); 1638#L927-2 test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1639#L937 assume !(0 != test_~tmp___0~2#1); 1731#L937-2 test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1687#L947 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1648#L868 assume { :end_inline_startSystem } true; 1649#L955-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 1599#L804 __utac_acc__Specification5_spec__2_#t~ret5#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret5#1;havoc __utac_acc__Specification5_spec__2_#t~ret5#1; 1600#L183 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1754#L693 assume !(0 != ~pumpRunning~0); 1695#L693-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1635#L751 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 1620#L725-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1621#L669-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1662#L674-1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1945#L853-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1944#L853-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1943#L859-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 1939#L729-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1743#L717-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1593#L725-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1585#L751-1 assume { :end_inline_processEnvironment } true; 1586#L700-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_#t~ret7#1, __utac_acc__Specification5_spec__3_~tmp~1#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~1#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1704#L661 __utac_acc__Specification5_spec__3_#t~ret6#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~1#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 1739#L194 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~8#1;havoc isPumpRunning_~retValue_acc~8#1;isPumpRunning_~retValue_acc~8#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~8#1; 1705#L804-1 __utac_acc__Specification5_spec__3_#t~ret7#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret7#1;havoc __utac_acc__Specification5_spec__3_#t~ret7#1; 1706#L198 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1589#L194-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1590#L710 assume { :end_inline_timeShift } true; 1605#L917-2 [2021-12-06 19:02:13,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:13,021 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-06 19:02:13,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:13,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206507855] [2021-12-06 19:02:13,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:13,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:13,028 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:02:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:13,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:02:13,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:13,054 INFO L85 PathProgramCache]: Analyzing trace with hash -510097693, now seen corresponding path program 1 times [2021-12-06 19:02:13,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:13,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889132188] [2021-12-06 19:02:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:13,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:13,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:02:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:13,078 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:02:13,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:02:13,079 INFO L85 PathProgramCache]: Analyzing trace with hash 86459852, now seen corresponding path program 1 times [2021-12-06 19:02:13,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:02:13,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300468657] [2021-12-06 19:02:13,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:02:13,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:02:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:13,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:02:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:02:13,110 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:02:15,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 07:02:15 BoogieIcfgContainer [2021-12-06 19:02:15,074 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 19:02:15,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:02:15,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:02:15,075 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:02:15,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:02:12" (3/4) ... [2021-12-06 19:02:15,077 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-06 19:02:15,114 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 19:02:15,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:02:15,115 INFO L158 Benchmark]: Toolchain (without parser) took 3839.24ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 77.9MB in the beginning and 101.1MB in the end (delta: -23.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-12-06 19:02:15,115 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:02:15,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.88ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 85.8MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 19:02:15,115 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.45ms. Allocated memory is still 119.5MB. Free memory was 85.8MB in the beginning and 82.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:02:15,116 INFO L158 Benchmark]: Boogie Preprocessor took 29.29ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 80.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:02:15,116 INFO L158 Benchmark]: RCFGBuilder took 421.22ms. Allocated memory is still 119.5MB. Free memory was 80.0MB in the beginning and 58.6MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-06 19:02:15,116 INFO L158 Benchmark]: BuchiAutomizer took 2989.64ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 58.6MB in the beginning and 104.2MB in the end (delta: -45.6MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2021-12-06 19:02:15,116 INFO L158 Benchmark]: Witness Printer took 39.53ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 101.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:02:15,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.88ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 85.8MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.45ms. Allocated memory is still 119.5MB. Free memory was 85.8MB in the beginning and 82.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.29ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 80.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.22ms. Allocated memory is still 119.5MB. Free memory was 80.0MB in the beginning and 58.6MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 2989.64ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 58.6MB in the beginning and 104.2MB in the end (delta: -45.6MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. * Witness Printer took 39.53ms. Allocated memory is still 151.0MB. Free memory was 104.2MB in the beginning and 101.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 428 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 190 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 428 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1427 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1427 mSDsluCounter, 1479 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 762 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 717 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 917]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4191b5a3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b29b5d4=29, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38026cc6=0, tmp___0=0, retValue_acc=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5039efe4=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72177b74=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e73c0b4=0, methaneLevelCritical=0, tmp=0, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@577351c3=0, retValue_acc=1, \result=1, tmp=1, \result=1, tmp=1, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70db6780=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4667ceee=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d315e18=0, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22db7c09=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 917]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int cleanupTimeShifts = 4; [L167] int switchedOnBeforeTS ; [L385] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L586] int waterLevel = 1; [L587] int methaneLevelCritical = 0; [L683] int pumpRunning = 0; [L684] int systemActive = 1; [L142] int retValue_acc ; [L143] int tmp ; [L147] FCALL select_helpers() [L148] FCALL select_features() [L149] CALL, EXPR valid_product() [L898] int retValue_acc ; [L901] retValue_acc = 1 [L902] return (retValue_acc); [L149] RET, EXPR valid_product() [L149] tmp = valid_product() [L151] COND TRUE \read(tmp) [L153] FCALL setup() [L154] CALL runTest() [L132] CALL __utac_acc__Specification5_spec__1() [L172] switchedOnBeforeTS = 0 [L132] RET __utac_acc__Specification5_spec__1() [L133] CALL test() [L908] int splverifierCounter ; [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; [L912] int tmp___2 ; [L915] splverifierCounter = 0 Loop: [L917] COND TRUE 1 [L919] COND TRUE splverifierCounter < 4 [L925] tmp = __VERIFIER_nondet_int() [L927] COND FALSE !(\read(tmp)) [L935] tmp___0 = __VERIFIER_nondet_int() [L937] COND FALSE !(\read(tmp___0)) [L945] tmp___2 = __VERIFIER_nondet_int() [L947] COND TRUE \read(tmp___2) [L949] CALL startSystem() [L867] systemActive = 1 [L949] RET startSystem() [L962] CALL timeShift() [L691] CALL __utac_acc__Specification5_spec__2() [L181] CALL, EXPR isPumpRunning() [L800] int retValue_acc ; [L803] retValue_acc = pumpRunning [L804] return (retValue_acc); [L181] RET, EXPR isPumpRunning() [L181] switchedOnBeforeTS = isPumpRunning() [L691] RET __utac_acc__Specification5_spec__2() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L748] int tmp ; [L751] COND FALSE !(\read(pumpRunning)) [L766] CALL processEnvironment__wrappee__highWaterSensor() [L722] int tmp ; [L725] COND TRUE ! pumpRunning [L727] CALL, EXPR isHighWaterLevel() [L845] int retValue_acc ; [L846] int tmp ; [L847] int tmp___0 ; [L851] CALL, EXPR isHighWaterSensorDry() [L666] int retValue_acc ; [L669] COND TRUE waterLevel < 2 [L670] retValue_acc = 1 [L671] return (retValue_acc); [L851] RET, EXPR isHighWaterSensorDry() [L851] tmp = isHighWaterSensorDry() [L853] COND TRUE \read(tmp) [L854] tmp___0 = 0 [L858] retValue_acc = tmp___0 [L859] return (retValue_acc); [L727] RET, EXPR isHighWaterLevel() [L727] tmp = isHighWaterLevel() [L729] COND FALSE !(\read(tmp)) [L735] FCALL processEnvironment__wrappee__base() [L766] RET processEnvironment__wrappee__highWaterSensor() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification5_spec__3() [L187] int tmp ; [L188] int tmp___0 ; [L192] CALL, EXPR getWaterLevel() [L657] int retValue_acc ; [L660] retValue_acc = waterLevel [L661] return (retValue_acc); [L192] RET, EXPR getWaterLevel() [L192] tmp = getWaterLevel() [L194] COND TRUE tmp != 2 [L196] CALL, EXPR isPumpRunning() [L800] int retValue_acc ; [L803] retValue_acc = pumpRunning [L804] return (retValue_acc); [L196] RET, EXPR isPumpRunning() [L196] tmp___0 = isPumpRunning() [L198] COND FALSE !(\read(tmp___0)) [L708] RET __utac_acc__Specification5_spec__3() [L962] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-06 19:02:15,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbab29b4-f2dc-4319-b735-bc08a937ff2f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)