./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/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_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2ec66100f9e2ac4db263cd9becb832e73074b4f7ebe73780c502623dad07d2b6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:08:24,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:08:24,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:08:24,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:08:24,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:08:24,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:08:24,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:08:24,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:08:24,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:08:24,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:08:24,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:08:24,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:08:24,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:08:24,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:08:24,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:08:24,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:08:24,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:08:24,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:08:24,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:08:24,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:08:24,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:08:24,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:08:24,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:08:24,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:08:24,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:08:24,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:08:24,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:08:24,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:08:24,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:08:24,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:08:24,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:08:24,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:08:24,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:08:24,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:08:24,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:08:24,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:08:24,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:08:24,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:08:24,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:08:24,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:08:24,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:08:24,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:08:24,583 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:08:24,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:08:24,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:08:24,584 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:08:24,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:08:24,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:08:24,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:08:24,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:08:24,585 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:08:24,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:08:24,586 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:08:24,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:08:24,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:08:24,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:08:24,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:08:24,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:08:24,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:08:24,587 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:08:24,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:08:24,587 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:08:24,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:08:24,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:08:24,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:08:24,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:08:24,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:08:24,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:08:24,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:08:24,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:08:24,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:08:24,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:08:24,589 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:08:24,590 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:08:24,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:08:24,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:08:24,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_4278c757-7791-4b51-8888-447535b0268a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ec66100f9e2ac4db263cd9becb832e73074b4f7ebe73780c502623dad07d2b6 [2021-12-07 00:08:24,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:08:24,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:08:24,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:08:24,808 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:08:24,809 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:08:24,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c [2021-12-07 00:08:24,853 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/data/0e7ac966a/0a76d21616504e779cf53d0e22165a83/FLAGcab9d0720 [2021-12-07 00:08:25,258 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:08:25,258 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c [2021-12-07 00:08:25,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/data/0e7ac966a/0a76d21616504e779cf53d0e22165a83/FLAGcab9d0720 [2021-12-07 00:08:25,276 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/data/0e7ac966a/0a76d21616504e779cf53d0e22165a83 [2021-12-07 00:08:25,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:08:25,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:08:25,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:08:25,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:08:25,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:08:25,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cefd691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25, skipping insertion in model container [2021-12-07 00:08:25,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:08:25,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:08:25,516 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_4278c757-7791-4b51-8888-447535b0268a/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c[14184,14197] [2021-12-07 00:08:25,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:08:25,537 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:08:25,578 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_4278c757-7791-4b51-8888-447535b0268a/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c[14184,14197] [2021-12-07 00:08:25,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:08:25,601 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:08:25,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25 WrapperNode [2021-12-07 00:08:25,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:08:25,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:08:25,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:08:25,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:08:25,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,640 INFO L137 Inliner]: procedures = 53, calls = 153, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 219 [2021-12-07 00:08:25,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:08:25,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:08:25,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:08:25,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:08:25,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:08:25,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:08:25,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:08:25,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:08:25,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (1/1) ... [2021-12-07 00:08:25,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:08:25,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:08:25,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:08:25,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:08:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:08:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-07 00:08:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-07 00:08:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-07 00:08:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-07 00:08:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-07 00:08:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-07 00:08:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-07 00:08:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-07 00:08:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-07 00:08:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-07 00:08:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-07 00:08:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-07 00:08:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:08:25,718 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-07 00:08:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-07 00:08:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:08:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:08:25,769 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:08:25,770 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:08:25,972 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:08:25,978 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:08:25,979 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 00:08:25,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:08:25 BoogieIcfgContainer [2021-12-07 00:08:25,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:08:25,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:08:25,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:08:25,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:08:25,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:08:25" (1/3) ... [2021-12-07 00:08:25,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2242ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:08:25, skipping insertion in model container [2021-12-07 00:08:25,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:08:25" (2/3) ... [2021-12-07 00:08:25,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2242ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:08:25, skipping insertion in model container [2021-12-07 00:08:25,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:08:25" (3/3) ... [2021-12-07 00:08:25,987 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2021-12-07 00:08:25,991 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:08:25,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:08:26,026 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:08:26,031 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:08:26,031 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:08:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 66 states have internal predecessors, (81), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-07 00:08:26,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-07 00:08:26,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:08:26,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:08:26,051 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:08:26,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:08:26,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1968968141, now seen corresponding path program 1 times [2021-12-07 00:08:26,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:08:26,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885932923] [2021-12-07 00:08:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:08:26,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:08:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:08:26,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:08:26,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:08:26,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885932923] [2021-12-07 00:08:26,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885932923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:08:26,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:08:26,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:08:26,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803415776] [2021-12-07 00:08:26,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:08:26,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:08:26,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:08:26,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:08:26,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:08:26,243 INFO L87 Difference]: Start difference. First operand has 79 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 66 states have internal predecessors, (81), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:08:26,274 INFO L93 Difference]: Finished difference Result 150 states and 201 transitions. [2021-12-07 00:08:26,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:08:26,276 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-07 00:08:26,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:08:26,285 INFO L225 Difference]: With dead ends: 150 [2021-12-07 00:08:26,286 INFO L226 Difference]: Without dead ends: 70 [2021-12-07 00:08:26,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:08:26,293 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:08:26,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:08:26,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-12-07 00:08:26,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-12-07 00:08:26,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 58 states have internal predecessors, (67), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-07 00:08:26,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2021-12-07 00:08:26,332 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 19 [2021-12-07 00:08:26,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:08:26,332 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2021-12-07 00:08:26,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,333 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2021-12-07 00:08:26,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-07 00:08:26,335 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:08:26,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:08:26,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:08:26,335 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:08:26,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:08:26,336 INFO L85 PathProgramCache]: Analyzing trace with hash 676286126, now seen corresponding path program 1 times [2021-12-07 00:08:26,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:08:26,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441130370] [2021-12-07 00:08:26,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:08:26,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:08:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:08:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:08:26,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:08:26,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441130370] [2021-12-07 00:08:26,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441130370] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:08:26,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:08:26,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:08:26,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777266409] [2021-12-07 00:08:26,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:08:26,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:08:26,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:08:26,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:08:26,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:08:26,395 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:08:26,406 INFO L93 Difference]: Finished difference Result 101 states and 125 transitions. [2021-12-07 00:08:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:08:26,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-07 00:08:26,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:08:26,408 INFO L225 Difference]: With dead ends: 101 [2021-12-07 00:08:26,408 INFO L226 Difference]: Without dead ends: 61 [2021-12-07 00:08:26,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:08:26,410 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 17 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:08:26,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 128 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:08:26,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-12-07 00:08:26,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-12-07 00:08:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 52 states have internal predecessors, (60), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-07 00:08:26,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2021-12-07 00:08:26,417 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 20 [2021-12-07 00:08:26,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:08:26,418 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2021-12-07 00:08:26,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,418 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2021-12-07 00:08:26,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-07 00:08:26,419 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:08:26,419 INFO L514 BasicCegarLoop]: trace 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] [2021-12-07 00:08:26,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:08:26,419 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:08:26,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:08:26,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1105447611, now seen corresponding path program 1 times [2021-12-07 00:08:26,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:08:26,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416043551] [2021-12-07 00:08:26,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:08:26,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:08:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:08:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:08:26,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:08:26,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416043551] [2021-12-07 00:08:26,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416043551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:08:26,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:08:26,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:08:26,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482241050] [2021-12-07 00:08:26,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:08:26,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:08:26,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:08:26,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:08:26,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:08:26,469 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:08:26,495 INFO L93 Difference]: Finished difference Result 167 states and 213 transitions. [2021-12-07 00:08:26,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:08:26,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-07 00:08:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:08:26,497 INFO L225 Difference]: With dead ends: 167 [2021-12-07 00:08:26,497 INFO L226 Difference]: Without dead ends: 113 [2021-12-07 00:08:26,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:08:26,499 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 68 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:08:26,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 157 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:08:26,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-12-07 00:08:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 110. [2021-12-07 00:08:26,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 92 states have internal predecessors, (108), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-07 00:08:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2021-12-07 00:08:26,515 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 25 [2021-12-07 00:08:26,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:08:26,515 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2021-12-07 00:08:26,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2021-12-07 00:08:26,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-07 00:08:26,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:08:26,517 INFO L514 BasicCegarLoop]: trace 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] [2021-12-07 00:08:26,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:08:26,517 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:08:26,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:08:26,518 INFO L85 PathProgramCache]: Analyzing trace with hash -698168017, now seen corresponding path program 1 times [2021-12-07 00:08:26,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:08:26,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365172155] [2021-12-07 00:08:26,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:08:26,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:08:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:08:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:08:26,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:08:26,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365172155] [2021-12-07 00:08:26,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365172155] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:08:26,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:08:26,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:08:26,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557979405] [2021-12-07 00:08:26,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:08:26,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:08:26,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:08:26,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:08:26,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:08:26,595 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:08:26,651 INFO L93 Difference]: Finished difference Result 304 states and 401 transitions. [2021-12-07 00:08:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:08:26,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-07 00:08:26,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:08:26,655 INFO L225 Difference]: With dead ends: 304 [2021-12-07 00:08:26,655 INFO L226 Difference]: Without dead ends: 201 [2021-12-07 00:08:26,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:08:26,658 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 48 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:08:26,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 303 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:08:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-12-07 00:08:26,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-12-07 00:08:26,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 146 states have (on average 1.3150684931506849) internal successors, (192), 165 states have internal predecessors, (192), 32 states have call successors, (32), 24 states have call predecessors, (32), 22 states have return successors, (34), 20 states have call predecessors, (34), 32 states have call successors, (34) [2021-12-07 00:08:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 258 transitions. [2021-12-07 00:08:26,692 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 258 transitions. Word has length 28 [2021-12-07 00:08:26,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:08:26,692 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 258 transitions. [2021-12-07 00:08:26,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,693 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 258 transitions. [2021-12-07 00:08:26,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 00:08:26,695 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:08:26,695 INFO L514 BasicCegarLoop]: trace 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] [2021-12-07 00:08:26,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:08:26,696 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:08:26,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:08:26,697 INFO L85 PathProgramCache]: Analyzing trace with hash 344714708, now seen corresponding path program 1 times [2021-12-07 00:08:26,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:08:26,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008135934] [2021-12-07 00:08:26,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:08:26,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:08:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:08:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:08:26,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:08:26,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008135934] [2021-12-07 00:08:26,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008135934] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:08:26,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:08:26,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:08:26,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399069800] [2021-12-07 00:08:26,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:08:26,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:08:26,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:08:26,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:08:26,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:08:26,752 INFO L87 Difference]: Start difference. First operand 201 states and 258 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:08:26,774 INFO L93 Difference]: Finished difference Result 337 states and 441 transitions. [2021-12-07 00:08:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:08:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-07 00:08:26,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:08:26,776 INFO L225 Difference]: With dead ends: 337 [2021-12-07 00:08:26,777 INFO L226 Difference]: Without dead ends: 143 [2021-12-07 00:08:26,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:08:26,780 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:08:26,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 50 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:08:26,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-12-07 00:08:26,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2021-12-07 00:08:26,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 117 states have internal predecessors, (138), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (16), 14 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-07 00:08:26,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 170 transitions. [2021-12-07 00:08:26,800 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 170 transitions. Word has length 30 [2021-12-07 00:08:26,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:08:26,800 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 170 transitions. [2021-12-07 00:08:26,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:08:26,801 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 170 transitions. [2021-12-07 00:08:26,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-07 00:08:26,802 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:08:26,803 INFO L514 BasicCegarLoop]: trace 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] [2021-12-07 00:08:26,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:08:26,803 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:08:26,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:08:26,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1162418059, now seen corresponding path program 1 times [2021-12-07 00:08:26,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:08:26,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674568204] [2021-12-07 00:08:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:08:26,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:08:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:08:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:08:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:08:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:08:26,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:08:26,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674568204] [2021-12-07 00:08:26,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674568204] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:08:26,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:08:26,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:08:26,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640669198] [2021-12-07 00:08:26,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:08:26,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:08:26,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:08:26,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:08:26,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:08:26,855 INFO L87 Difference]: Start difference. First operand 141 states and 170 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:08:26,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:08:26,911 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2021-12-07 00:08:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:08:26,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-07 00:08:26,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:08:26,912 INFO L225 Difference]: With dead ends: 151 [2021-12-07 00:08:26,912 INFO L226 Difference]: Without dead ends: 0 [2021-12-07 00:08:26,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:08:26,914 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 48 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:08:26,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 153 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:08:26,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-07 00:08:26,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-07 00:08:26,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-07 00:08:26,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-07 00:08:26,916 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-12-07 00:08:26,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:08:26,916 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:08:26,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:08:26,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-07 00:08:26,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-07 00:08:26,919 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 00:08:26,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:08:26,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-07 00:08:27,199 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 739 746) the Hoare annotation is: true [2021-12-07 00:08:27,199 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 739 746) no Hoare annotation was computed. [2021-12-07 00:08:27,199 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 739 746) no Hoare annotation was computed. [2021-12-07 00:08:27,199 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 486 497) the Hoare annotation is: true [2021-12-07 00:08:27,199 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 486 497) no Hoare annotation was computed. [2021-12-07 00:08:27,199 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 486 497) no Hoare annotation was computed. [2021-12-07 00:08:27,200 INFO L854 garLoopResultBuilder]: At program point L535(lines 530 538) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2021-12-07 00:08:27,200 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 657 680) no Hoare annotation was computed. [2021-12-07 00:08:27,200 INFO L858 garLoopResultBuilder]: For program point L643(line 643) no Hoare annotation was computed. [2021-12-07 00:08:27,200 INFO L858 garLoopResultBuilder]: For program point L668-1(lines 668 674) no Hoare annotation was computed. [2021-12-07 00:08:27,200 INFO L854 garLoopResultBuilder]: At program point L763(lines 758 766) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2021-12-07 00:08:27,200 INFO L858 garLoopResultBuilder]: For program point L697(lines 697 705) no Hoare annotation was computed. [2021-12-07 00:08:27,200 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 710) no Hoare annotation was computed. [2021-12-07 00:08:27,200 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 470) no Hoare annotation was computed. [2021-12-07 00:08:27,200 INFO L854 garLoopResultBuilder]: At program point L466-2(lines 462 473) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:08:27,200 INFO L854 garLoopResultBuilder]: At program point L644(lines 639 646) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:08:27,200 INFO L858 garLoopResultBuilder]: For program point L661-1(lines 660 679) no Hoare annotation was computed. [2021-12-07 00:08:27,201 INFO L858 garLoopResultBuilder]: For program point L839(lines 839 845) no Hoare annotation was computed. [2021-12-07 00:08:27,201 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 848) no Hoare annotation was computed. [2021-12-07 00:08:27,201 INFO L854 garLoopResultBuilder]: At program point L835-1(lines 827 851) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2021-12-07 00:08:27,201 INFO L854 garLoopResultBuilder]: At program point L703(line 703) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:08:27,201 INFO L854 garLoopResultBuilder]: At program point L699(line 699) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:08:27,201 INFO L854 garLoopResultBuilder]: At program point L695(line 695) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:08:27,201 INFO L858 garLoopResultBuilder]: For program point L695-1(line 695) no Hoare annotation was computed. [2021-12-07 00:08:27,201 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 657 680) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-12-07 00:08:27,201 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 657 680) no Hoare annotation was computed. [2021-12-07 00:08:27,201 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 643) no Hoare annotation was computed. [2021-12-07 00:08:27,202 INFO L854 garLoopResultBuilder]: At program point L708(line 708) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-12-07 00:08:27,202 INFO L854 garLoopResultBuilder]: At program point L708-1(lines 689 713) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-12-07 00:08:27,202 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 542 571) no Hoare annotation was computed. [2021-12-07 00:08:27,202 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 542 571) the Hoare annotation is: true [2021-12-07 00:08:27,202 INFO L861 garLoopResultBuilder]: At program point L567(lines 542 571) the Hoare annotation is: true [2021-12-07 00:08:27,202 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-12-07 00:08:27,202 INFO L858 garLoopResultBuilder]: For program point L556(lines 556 560) no Hoare annotation was computed. [2021-12-07 00:08:27,202 INFO L861 garLoopResultBuilder]: At program point L556-1(lines 556 560) the Hoare annotation is: true [2021-12-07 00:08:27,202 INFO L858 garLoopResultBuilder]: For program point L553(line 553) no Hoare annotation was computed. [2021-12-07 00:08:27,202 INFO L861 garLoopResultBuilder]: At program point L552-2(lines 552 566) the Hoare annotation is: true [2021-12-07 00:08:27,202 INFO L861 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: true [2021-12-07 00:08:27,202 INFO L858 garLoopResultBuilder]: For program point L548-1(line 548) no Hoare annotation was computed. [2021-12-07 00:08:27,203 INFO L858 garLoopResultBuilder]: For program point L865(lines 865 869) no Hoare annotation was computed. [2021-12-07 00:08:27,203 INFO L861 garLoopResultBuilder]: At program point L634(lines 615 637) the Hoare annotation is: true [2021-12-07 00:08:27,203 INFO L854 garLoopResultBuilder]: At program point L601(lines 597 603) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 00:08:27,203 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-07 00:08:27,203 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-07 00:08:27,203 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-07 00:08:27,203 INFO L861 garLoopResultBuilder]: At program point L916(lines 853 920) the Hoare annotation is: true [2021-12-07 00:08:27,203 INFO L858 garLoopResultBuilder]: For program point L883(lines 883 889) no Hoare annotation was computed. [2021-12-07 00:08:27,203 INFO L858 garLoopResultBuilder]: For program point L883-1(lines 883 889) no Hoare annotation was computed. [2021-12-07 00:08:27,203 INFO L854 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:08:27,203 INFO L854 garLoopResultBuilder]: At program point L809(line 809) the Hoare annotation is: false [2021-12-07 00:08:27,203 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-07 00:08:27,204 INFO L854 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 00:08:27,204 INFO L854 garLoopResultBuilder]: At program point L913(lines 862 914) the Hoare annotation is: false [2021-12-07 00:08:27,204 INFO L854 garLoopResultBuilder]: At program point L75(lines 71 77) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 00:08:27,204 INFO L858 garLoopResultBuilder]: For program point L901(lines 901 907) no Hoare annotation was computed. [2021-12-07 00:08:27,204 INFO L861 garLoopResultBuilder]: At program point L612(lines 605 614) the Hoare annotation is: true [2021-12-07 00:08:27,204 INFO L854 garLoopResultBuilder]: At program point L901-2(lines 893 908) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:08:27,204 INFO L858 garLoopResultBuilder]: For program point L864(lines 863 912) no Hoare annotation was computed. [2021-12-07 00:08:27,204 INFO L858 garLoopResultBuilder]: For program point L893(lines 893 908) no Hoare annotation was computed. [2021-12-07 00:08:27,204 INFO L854 garLoopResultBuilder]: At program point L823(lines 818 825) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:08:27,204 INFO L854 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:08:27,204 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 632) no Hoare annotation was computed. [2021-12-07 00:08:27,205 INFO L854 garLoopResultBuilder]: At program point L815(lines 803 817) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:08:27,205 INFO L858 garLoopResultBuilder]: For program point L625-2(lines 625 632) no Hoare annotation was computed. [2021-12-07 00:08:27,205 INFO L854 garLoopResultBuilder]: At program point L910(lines 863 912) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:08:27,205 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2021-12-07 00:08:27,205 INFO L858 garLoopResultBuilder]: For program point L873-1(lines 873 879) no Hoare annotation was computed. [2021-12-07 00:08:27,205 INFO L858 garLoopResultBuilder]: For program point L807(lines 807 813) no Hoare annotation was computed. [2021-12-07 00:08:27,205 INFO L858 garLoopResultBuilder]: For program point L807-1(lines 807 813) no Hoare annotation was computed. [2021-12-07 00:08:27,205 INFO L854 garLoopResultBuilder]: At program point L68(lines 64 70) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 00:08:27,205 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 474 485) no Hoare annotation was computed. [2021-12-07 00:08:27,205 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 474 485) no Hoare annotation was computed. [2021-12-07 00:08:27,206 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 474 485) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2021-12-07 00:08:27,206 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 681 687) no Hoare annotation was computed. [2021-12-07 00:08:27,206 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 681 687) the Hoare annotation is: true [2021-12-07 00:08:27,206 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 747 757) the Hoare annotation is: true [2021-12-07 00:08:27,206 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 747 757) no Hoare annotation was computed. [2021-12-07 00:08:27,206 INFO L861 garLoopResultBuilder]: At program point L503(lines 498 506) the Hoare annotation is: true [2021-12-07 00:08:27,206 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 747 757) no Hoare annotation was computed. [2021-12-07 00:08:27,208 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-07 00:08:27,209 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:08:27,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:08:27 BoogieIcfgContainer [2021-12-07 00:08:27,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:08:27,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:08:27,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:08:27,222 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:08:27,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:08:25" (3/4) ... [2021-12-07 00:08:27,225 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-07 00:08:27,229 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-07 00:08:27,229 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-07 00:08:27,229 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-07 00:08:27,229 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-07 00:08:27,230 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-07 00:08:27,230 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-07 00:08:27,230 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-07 00:08:27,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2021-12-07 00:08:27,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-07 00:08:27,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-07 00:08:27,236 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-07 00:08:27,236 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-07 00:08:27,236 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 00:08:27,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 00:08:27,253 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-07 00:08:27,253 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel) [2021-12-07 00:08:27,254 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2021-12-07 00:08:27,254 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2021-12-07 00:08:27,254 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2021-12-07 00:08:27,254 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-07 00:08:27,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 00:08:27,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:08:27,271 INFO L158 Benchmark]: Toolchain (without parser) took 1991.93ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 71.2MB in the beginning and 68.1MB in the end (delta: 3.1MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2021-12-07 00:08:27,271 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:08:27,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.74ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 76.9MB in the end (delta: -5.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 00:08:27,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.83ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:08:27,272 INFO L158 Benchmark]: Boogie Preprocessor took 19.38ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 72.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:08:27,272 INFO L158 Benchmark]: RCFGBuilder took 319.62ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 58.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-07 00:08:27,273 INFO L158 Benchmark]: TraceAbstraction took 1239.96ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 57.6MB in the beginning and 73.5MB in the end (delta: -16.0MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2021-12-07 00:08:27,273 INFO L158 Benchmark]: Witness Printer took 48.62ms. Allocated memory is still 146.8MB. Free memory was 73.5MB in the beginning and 68.1MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-07 00:08:27,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.74ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 76.9MB in the end (delta: -5.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.83ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 74.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.38ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 72.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.62ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 58.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1239.96ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 57.6MB in the beginning and 73.5MB in the end (delta: -16.0MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Witness Printer took 48.62ms. Allocated memory is still 146.8MB. Free memory was 73.5MB in the beginning and 68.1MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 643]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 888 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 447 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 441 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 282 PreInvPairs, 326 NumberOfFragments, 243 HoareAnnotationTreeSize, 282 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 37 FomulaSimplificationsInter, 919 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 639]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 803]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 462]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 689]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel) - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-07 00:08:27,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4278c757-7791-4b51-8888-447535b0268a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE