./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:23:54,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:23:54,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:23:54,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:23:54,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:23:54,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:23:54,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:23:54,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:23:54,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:23:54,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:23:54,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:23:54,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:23:54,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:23:54,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:23:54,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:23:54,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:23:54,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:23:54,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:23:54,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:23:54,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:23:54,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:23:54,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:23:54,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:23:54,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:23:54,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:23:54,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:23:54,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:23:54,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:23:54,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:23:54,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:23:54,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:23:54,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:23:54,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:23:54,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:23:54,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:23:54,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:23:54,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:23:54,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:23:54,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:23:54,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:23:54,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:23:54,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:23:54,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:23:54,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:23:54,548 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:23:54,548 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:23:54,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:23:54,558 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:23:54,558 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:23:54,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:23:54,559 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:23:54,559 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:23:54,560 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:23:54,561 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:23:54,561 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:23:54,561 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:23:54,562 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:23:54,562 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:23:54,562 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:23:54,563 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:23:54,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:23:54,564 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:23:54,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:23:54,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:23:54,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:23:54,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:23:54,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:23:54,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:23:54,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:23:54,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:23:54,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:23:54,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:23:54,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:23:54,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:23:54,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:23:54,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:23:54,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:23:54,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:23:54,569 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:23:54,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:23:54,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:23:54,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:23:54,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:23:54,571 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef [2021-11-23 02:23:54,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:23:54,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:23:54,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:23:54,996 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:23:54,997 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:23:54,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2021-11-23 02:23:55,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/data/f68545bf4/61dabcaac4e9457f91d3046672e17773/FLAGac8731d76 [2021-11-23 02:23:55,709 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:23:55,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2021-11-23 02:23:55,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/data/f68545bf4/61dabcaac4e9457f91d3046672e17773/FLAGac8731d76 [2021-11-23 02:23:55,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/data/f68545bf4/61dabcaac4e9457f91d3046672e17773 [2021-11-23 02:23:55,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:23:55,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:23:55,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:23:55,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:23:55,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:23:55,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:55" (1/1) ... [2021-11-23 02:23:56,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c7ebf72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:55, skipping insertion in model container [2021-11-23 02:23:56,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:55" (1/1) ... [2021-11-23 02:23:56,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:23:56,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:23:56,304 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_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2021-11-23 02:23:56,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:23:56,462 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:23:56,482 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_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2021-11-23 02:23:56,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:23:56,620 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:23:56,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56 WrapperNode [2021-11-23 02:23:56,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:23:56,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:23:56,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:23:56,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:23:56,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,716 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 231 [2021-11-23 02:23:56,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:23:56,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:23:56,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:23:56,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:23:56,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:23:56,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:23:56,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:23:56,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:23:56,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (1/1) ... [2021-11-23 02:23:56,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:23:56,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:23:56,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:23:56,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:23:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:23:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 02:23:56,843 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 02:23:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 02:23:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 02:23:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 02:23:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 02:23:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 02:23:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 02:23:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 02:23:56,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 02:23:56,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:23:56,845 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 02:23:56,845 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 02:23:56,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:23:56,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:23:56,935 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:23:56,938 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:23:57,376 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:23:57,517 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:23:57,521 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 02:23:57,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:57 BoogieIcfgContainer [2021-11-23 02:23:57,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:23:57,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:23:57,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:23:57,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:23:57,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:23:55" (1/3) ... [2021-11-23 02:23:57,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216119f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:57, skipping insertion in model container [2021-11-23 02:23:57,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:56" (2/3) ... [2021-11-23 02:23:57,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216119f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:57, skipping insertion in model container [2021-11-23 02:23:57,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:57" (3/3) ... [2021-11-23 02:23:57,535 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2021-11-23 02:23:57,542 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:23:57,542 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:23:57,620 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:23:57,629 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=FINITE_AUTOMATA, 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 [2021-11-23 02:23:57,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:23:57,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-23 02:23:57,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 02:23:57,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:23:57,673 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:23:57,674 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:23:57,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:23:57,710 INFO L85 PathProgramCache]: Analyzing trace with hash -457706804, now seen corresponding path program 1 times [2021-11-23 02:23:57,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:23:57,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120561709] [2021-11-23 02:23:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:23:57,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:23:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:23:58,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:23:58,040 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:23:58,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120561709] [2021-11-23 02:23:58,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120561709] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:23:58,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:23:58,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:23:58,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246864282] [2021-11-23 02:23:58,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:23:58,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:23:58,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:23:58,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:23:58,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:23:58,084 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:23:58,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:23:58,149 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2021-11-23 02:23:58,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:23:58,152 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2021-11-23 02:23:58,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:23:58,161 INFO L225 Difference]: With dead ends: 100 [2021-11-23 02:23:58,162 INFO L226 Difference]: Without dead ends: 46 [2021-11-23 02:23:58,165 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 [2021-11-23 02:23:58,169 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:23:58,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:23:58,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-23 02:23:58,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-23 02:23:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-23 02:23:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2021-11-23 02:23:58,217 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2021-11-23 02:23:58,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:23:58,217 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2021-11-23 02:23:58,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:23:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2021-11-23 02:23:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:23:58,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:23:58,224 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:23:58,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:23:58,225 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:23:58,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:23:58,227 INFO L85 PathProgramCache]: Analyzing trace with hash -460735543, now seen corresponding path program 1 times [2021-11-23 02:23:58,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:23:58,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437042494] [2021-11-23 02:23:58,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:23:58,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:23:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:23:58,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:23:58,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:23:58,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437042494] [2021-11-23 02:23:58,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437042494] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:23:58,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:23:58,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:23:58,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551636673] [2021-11-23 02:23:58,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:23:58,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:23:58,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:23:58,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:23:58,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:23:58,352 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:23:58,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:23:58,522 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2021-11-23 02:23:58,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:23:58,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2021-11-23 02:23:58,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:23:58,526 INFO L225 Difference]: With dead ends: 132 [2021-11-23 02:23:58,526 INFO L226 Difference]: Without dead ends: 88 [2021-11-23 02:23:58,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:23:58,529 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 37 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:23:58,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 281 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:23:58,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-23 02:23:58,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2021-11-23 02:23:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 61 states have internal predecessors, (69), 18 states have call successors, (18), 12 states have call predecessors, (18), 10 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) [2021-11-23 02:23:58,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2021-11-23 02:23:58,553 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 24 [2021-11-23 02:23:58,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:23:58,553 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2021-11-23 02:23:58,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:23:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2021-11-23 02:23:58,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:23:58,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:23:58,556 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:23:58,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:23:58,556 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:23:58,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:23:58,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1230227349, now seen corresponding path program 1 times [2021-11-23 02:23:58,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:23:58,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379723332] [2021-11-23 02:23:58,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:23:58,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:23:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:23:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:23:58,603 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:23:58,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379723332] [2021-11-23 02:23:58,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379723332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:23:58,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:23:58,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:23:58,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222974835] [2021-11-23 02:23:58,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:23:58,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:23:58,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:23:58,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:23:58,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:23:58,607 INFO L87 Difference]: Start difference. First operand 84 states and 109 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:23:58,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:23:58,664 INFO L93 Difference]: Finished difference Result 124 states and 156 transitions. [2021-11-23 02:23:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:23:58,672 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2021-11-23 02:23:58,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:23:58,674 INFO L225 Difference]: With dead ends: 124 [2021-11-23 02:23:58,674 INFO L226 Difference]: Without dead ends: 68 [2021-11-23 02:23:58,675 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 [2021-11-23 02:23:58,677 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:23:58,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:23:58,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-23 02:23:58,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-23 02:23:58,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 51 states have internal predecessors, (57), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2021-11-23 02:23:58,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 83 transitions. [2021-11-23 02:23:58,707 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 83 transitions. Word has length 25 [2021-11-23 02:23:58,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:23:58,707 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 83 transitions. [2021-11-23 02:23:58,707 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:23:58,708 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2021-11-23 02:23:58,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 02:23:58,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:23:58,709 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:23:58,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:23:58,710 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:23:58,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:23:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1875186536, now seen corresponding path program 1 times [2021-11-23 02:23:58,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:23:58,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145970254] [2021-11-23 02:23:58,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:23:58,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:23:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:23:58,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:23:58,912 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:23:58,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145970254] [2021-11-23 02:23:58,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145970254] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:23:58,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:23:58,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:23:58,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031327874] [2021-11-23 02:23:58,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:23:58,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:23:58,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:23:58,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:23:58,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:23:58,919 INFO L87 Difference]: Start difference. First operand 68 states and 83 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:23:59,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:23:59,099 INFO L93 Difference]: Finished difference Result 179 states and 221 transitions. [2021-11-23 02:23:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:23:59,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-11-23 02:23:59,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:23:59,102 INFO L225 Difference]: With dead ends: 179 [2021-11-23 02:23:59,102 INFO L226 Difference]: Without dead ends: 113 [2021-11-23 02:23:59,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:23:59,106 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:23:59,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 164 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:23:59,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-23 02:23:59,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104. [2021-11-23 02:23:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 78 states have internal predecessors, (87), 18 states have call successors, (18), 14 states have call predecessors, (18), 15 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2021-11-23 02:23:59,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2021-11-23 02:23:59,129 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 27 [2021-11-23 02:23:59,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:23:59,129 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2021-11-23 02:23:59,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:23:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2021-11-23 02:23:59,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 02:23:59,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:23:59,132 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:23:59,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:23:59,133 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:23:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:23:59,134 INFO L85 PathProgramCache]: Analyzing trace with hash -24457034, now seen corresponding path program 1 times [2021-11-23 02:23:59,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:23:59,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587032079] [2021-11-23 02:23:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:23:59,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:23:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:23:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:23:59,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:23:59,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587032079] [2021-11-23 02:23:59,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587032079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:23:59,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:23:59,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:23:59,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686910364] [2021-11-23 02:23:59,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:23:59,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:23:59,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:23:59,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:23:59,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:23:59,303 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:23:59,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:23:59,869 INFO L93 Difference]: Finished difference Result 272 states and 335 transitions. [2021-11-23 02:23:59,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 02:23:59,870 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2021-11-23 02:23:59,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:23:59,874 INFO L225 Difference]: With dead ends: 272 [2021-11-23 02:23:59,874 INFO L226 Difference]: Without dead ends: 199 [2021-11-23 02:23:59,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-23 02:23:59,877 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 156 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:23:59,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 217 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:23:59,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-23 02:23:59,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 178. [2021-11-23 02:23:59,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 120 states have (on average 1.25) internal successors, (150), 135 states have internal predecessors, (150), 31 states have call successors, (31), 23 states have call predecessors, (31), 26 states have return successors, (36), 31 states have call predecessors, (36), 31 states have call successors, (36) [2021-11-23 02:23:59,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2021-11-23 02:23:59,916 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 30 [2021-11-23 02:23:59,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:23:59,917 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2021-11-23 02:23:59,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:23:59,917 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2021-11-23 02:23:59,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 02:23:59,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:23:59,920 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:23:59,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:23:59,920 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:23:59,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:23:59,921 INFO L85 PathProgramCache]: Analyzing trace with hash 793937010, now seen corresponding path program 1 times [2021-11-23 02:23:59,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:23:59,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842099489] [2021-11-23 02:23:59,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:23:59,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:23:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:24:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:24:00,046 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:24:00,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842099489] [2021-11-23 02:24:00,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842099489] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:24:00,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605010147] [2021-11-23 02:24:00,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:24:00,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:24:00,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:24:00,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:24:00,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:24:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:24:00,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:24:00,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:24:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:24:00,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:24:00,525 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:24:00,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605010147] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:24:00,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1699658004] [2021-11-23 02:24:00,546 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-23 02:24:00,546 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:24:00,554 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:24:00,559 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:24:00,559 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:24:07,777 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 305 for LOIs [2021-11-23 02:24:07,862 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 32 for LOIs [2021-11-23 02:24:08,209 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2021-11-23 02:24:08,234 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:24:18,049 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2432#(and (<= |old(~waterLevel~0)| 2147483647) (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (<= |timeShift_processEnvironment_~tmp~4#1| 1) (<= |timeShift_isHighWaterLevel_#res#1| 1) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~7#1|) (= ~methaneLevelCritical~0 0) (<= 0 |old(~switchedOnBeforeTS~0)|) (= ~head~0.offset 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| 2147483647) (<= |timeShift_getWaterLevel_~retValue_acc~6#1| 2147483647) (<= 2 ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_~retValue_acc~6#1|) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (= 1 ~systemActive~0) (<= |old(~switchedOnBeforeTS~0)| 0) (= |old(~pumpRunning~0)| 0) (<= |timeShift_isHighWaterLevel_~retValue_acc~10#1| 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (= |timeShift_isHighWaterLevel_~tmp~5#1| 0) (<= 2 |old(~waterLevel~0)|) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1|) (<= 1 |timeShift_isHighWaterLevel_~retValue_acc~10#1|) (<= ~waterLevel~0 2147483647) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 1 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~7#1| 0) (<= |timeShift_isHighWaterSensorDry_#res#1| 0) (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (<= 1 |timeShift_isHighWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2021-11-23 02:24:18,049 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:24:18,049 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:24:18,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2021-11-23 02:24:18,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098824465] [2021-11-23 02:24:18,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:24:18,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 02:24:18,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:24:18,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 02:24:18,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1106, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 02:24:18,053 INFO L87 Difference]: Start difference. First operand 178 states and 217 transitions. Second operand has 13 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-23 02:24:18,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:24:18,549 INFO L93 Difference]: Finished difference Result 244 states and 310 transitions. [2021-11-23 02:24:18,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 02:24:18,553 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 47 [2021-11-23 02:24:18,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:24:18,554 INFO L225 Difference]: With dead ends: 244 [2021-11-23 02:24:18,554 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:24:18,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 115 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=220, Invalid=1672, Unknown=0, NotChecked=0, Total=1892 [2021-11-23 02:24:18,564 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 131 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:24:18,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 497 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:24:18,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:24:18,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:24:18,566 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) [2021-11-23 02:24:18,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:24:18,566 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2021-11-23 02:24:18,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:24:18,567 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:24:18,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-23 02:24:18,567 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:24:18,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:24:18,570 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:24:18,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:24:18,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:24:18,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:24:20,231 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 670 676) no Hoare annotation was computed. [2021-11-23 02:24:20,232 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 670 676) the Hoare annotation is: true [2021-11-23 02:24:20,232 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 496 507) the Hoare annotation is: true [2021-11-23 02:24:20,232 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 496 507) no Hoare annotation was computed. [2021-11-23 02:24:20,232 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 853 882) no Hoare annotation was computed. [2021-11-23 02:24:20,235 INFO L861 garLoopResultBuilder]: At program point L863-2(lines 863 877) the Hoare annotation is: true [2021-11-23 02:24:20,235 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 853 882) the Hoare annotation is: true [2021-11-23 02:24:20,236 INFO L861 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: true [2021-11-23 02:24:20,236 INFO L858 garLoopResultBuilder]: For program point L859-1(line 859) no Hoare annotation was computed. [2021-11-23 02:24:20,236 INFO L861 garLoopResultBuilder]: At program point L878(lines 853 882) the Hoare annotation is: true [2021-11-23 02:24:20,236 INFO L858 garLoopResultBuilder]: For program point L874(line 874) no Hoare annotation was computed. [2021-11-23 02:24:20,236 INFO L858 garLoopResultBuilder]: For program point L867(lines 867 871) no Hoare annotation was computed. [2021-11-23 02:24:20,236 INFO L861 garLoopResultBuilder]: At program point L867-1(lines 867 871) the Hoare annotation is: true [2021-11-23 02:24:20,236 INFO L854 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~waterLevel~0 1)) (.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (and .cse0 .cse1) .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) .cse4)) (or .cse3 .cse5 .cse6) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse4) .cse0 .cse1) .cse2 .cse5 .cse6))) [2021-11-23 02:24:20,237 INFO L858 garLoopResultBuilder]: For program point L832-1(line 832) no Hoare annotation was computed. [2021-11-23 02:24:20,237 INFO L854 garLoopResultBuilder]: At program point L692(line 692) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_processEnvironment_~tmp~4#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 (= ~waterLevel~0 1))) (or .cse3 .cse4 .cse5) (or (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse4 .cse5) (or .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2021-11-23 02:24:20,237 INFO L854 garLoopResultBuilder]: At program point L697(line 697) the Hoare annotation is: (let ((.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and .cse0 .cse1) .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse4 .cse5) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) .cse0 .cse1) .cse2 .cse4 .cse5) (or .cse3 (not (= |old(~waterLevel~0)| 1))))) [2021-11-23 02:24:20,237 INFO L854 garLoopResultBuilder]: At program point L697-1(lines 678 702) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 1)) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_processEnvironment_~tmp~4#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse9 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 .cse3)) (or (and .cse4 .cse5) .cse6 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or (and (or .cse7 .cse3) .cse4 .cse5) .cse6 .cse8 .cse9) (or (and .cse1 .cse2 .cse7) .cse0 .cse8 (and .cse7 .cse5) .cse9))) [2021-11-23 02:24:20,238 INFO L854 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2)) (or .cse3 .cse4 (and .cse5 .cse6) .cse7) (or (and (or .cse5 .cse2) (<= 1 ~switchedOnBeforeTS~0) .cse6) .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (and .cse1 .cse5) .cse4 .cse7))) [2021-11-23 02:24:20,238 INFO L854 garLoopResultBuilder]: At program point L817-1(line 817) the Hoare annotation is: (let ((.cse2 (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret48#1|)) (.cse8 (= ~waterLevel~0 1)) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5) (or .cse6 (not (= |old(~waterLevel~0)| 1)) (and .cse7 .cse8)) (or (and .cse2 (or .cse3 .cse8) (<= 1 ~switchedOnBeforeTS~0) .cse4) .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse6 (and .cse7 .cse3) .cse1 .cse5))) [2021-11-23 02:24:20,238 INFO L858 garLoopResultBuilder]: For program point L834(lines 834 844) no Hoare annotation was computed. [2021-11-23 02:24:20,238 INFO L858 garLoopResultBuilder]: For program point L830(lines 830 847) no Hoare annotation was computed. [2021-11-23 02:24:20,238 INFO L854 garLoopResultBuilder]: At program point L830-1(lines 822 850) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= ~waterLevel~0 1)) (.cse8 (<= 1 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (let ((.cse2 (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1|)) (.cse3 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| 2))) (or .cse0 (and .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse3 .cse4 .cse5) .cse6 .cse7)) (or (and .cse8 .cse5) .cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse10)) (or (and (or .cse4 .cse10) .cse8 .cse5) .cse9 .cse6 .cse7))) [2021-11-23 02:24:20,239 INFO L854 garLoopResultBuilder]: At program point L657-1(lines 657 663) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= ~waterLevel~0 1)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (and .cse1 .cse2) .cse3 (and .cse2 .cse4) .cse5) (or (and .cse6 .cse4) .cse7 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse8)) (or (and (or .cse2 .cse8) .cse6 .cse4) .cse7 .cse3 .cse5))) [2021-11-23 02:24:20,239 INFO L854 garLoopResultBuilder]: At program point L686(lines 686 694) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= |timeShift_processEnvironment_~tmp~4#1| 0) (= ~waterLevel~0 1))) (or .cse2 .cse3 .cse4) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse3 .cse4) (or .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2021-11-23 02:24:20,239 INFO L854 garLoopResultBuilder]: At program point L682(lines 682 699) the Hoare annotation is: (let ((.cse5 (= ~waterLevel~0 1)) (.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (and .cse0 .cse1) .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 (not (= |old(~waterLevel~0)| 1)) (and .cse4 .cse5)) (or (and (or .cse6 .cse5) .cse0 .cse1) .cse2 .cse7 .cse8) (or .cse3 (and .cse4 .cse6) .cse7 .cse8))) [2021-11-23 02:24:20,239 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 841) no Hoare annotation was computed. [2021-11-23 02:24:20,239 INFO L854 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (let ((.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2) (or .cse3 (not (= |old(~waterLevel~0)| 1))) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2021-11-23 02:24:20,239 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 643 669) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2)) (or .cse3 .cse4 (and .cse5 .cse6) .cse7) (or (and (or .cse5 .cse2) (<= 1 ~switchedOnBeforeTS~0) .cse6) .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (and .cse1 .cse5) .cse4 .cse7))) [2021-11-23 02:24:20,239 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 643 669) no Hoare annotation was computed. [2021-11-23 02:24:20,240 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2021-11-23 02:24:20,240 INFO L858 garLoopResultBuilder]: For program point L650-2(lines 646 668) no Hoare annotation was computed. [2021-11-23 02:24:20,240 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 603) no Hoare annotation was computed. [2021-11-23 02:24:20,240 INFO L854 garLoopResultBuilder]: At program point L597-1(lines 597 603) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse2 .cse4 .cse5) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2021-11-23 02:24:20,240 INFO L854 garLoopResultBuilder]: At program point L622(lines 577 624) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse2 .cse4 .cse5) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2021-11-23 02:24:20,240 INFO L854 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse3 (<= ~waterLevel~0 2)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (let ((.cse5 (= ~pumpRunning~0 0))) (or (and .cse5 .cse2 (= ~waterLevel~0 1)) (and .cse5 .cse1 .cse2 .cse3)))) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse4))) [2021-11-23 02:24:20,240 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 02:24:20,240 INFO L854 garLoopResultBuilder]: At program point L615-2(lines 607 620) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse2 .cse4 .cse5) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2021-11-23 02:24:20,241 INFO L858 garLoopResultBuilder]: For program point L578(lines 577 624) no Hoare annotation was computed. [2021-11-23 02:24:20,241 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:24:20,241 INFO L854 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse2 .cse4 .cse5) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2021-11-23 02:24:20,241 INFO L861 garLoopResultBuilder]: At program point L628(lines 567 632) the Hoare annotation is: true [2021-11-23 02:24:20,241 INFO L858 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2021-11-23 02:24:20,241 INFO L858 garLoopResultBuilder]: For program point L587-1(lines 587 593) no Hoare annotation was computed. [2021-11-23 02:24:20,241 INFO L854 garLoopResultBuilder]: At program point L625(lines 576 626) the Hoare annotation is: false [2021-11-23 02:24:20,241 INFO L854 garLoopResultBuilder]: At program point L935(lines 935 942) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= ~pumpRunning~0 0) (= ~waterLevel~0 1)) [2021-11-23 02:24:20,241 INFO L861 garLoopResultBuilder]: At program point L935-2(lines 935 942) the Hoare annotation is: true [2021-11-23 02:24:20,241 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 484 495) no Hoare annotation was computed. [2021-11-23 02:24:20,242 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 484 495) the Hoare annotation is: (let ((.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (not (= ~pumpRunning~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~waterLevel~0 1))) (and (or (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) .cse3 .cse4) (or .cse5 .cse3 .cse1 .cse2) (or .cse5 .cse3 .cse4 (not (<= 1 ~switchedOnBeforeTS~0))))) [2021-11-23 02:24:20,242 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 730 738) no Hoare annotation was computed. [2021-11-23 02:24:20,242 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 730 738) the Hoare annotation is: true [2021-11-23 02:24:20,245 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-23 02:24:20,246 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:24:20,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:24:20 BoogieIcfgContainer [2021-11-23 02:24:20,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:24:20,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:24:20,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:24:20,275 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:24:20,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:57" (3/4) ... [2021-11-23 02:24:20,279 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:24:20,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 02:24:20,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 02:24:20,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 02:24:20,285 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 02:24:20,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 02:24:20,286 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-23 02:24:20,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2021-11-23 02:24:20,296 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-23 02:24:20,297 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 02:24:20,298 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:24:20,298 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:24:20,299 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:24:20,300 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:24:20,325 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && (((((1 <= aux-isPumpRunning()-aux && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2021-11-23 02:24:20,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2021-11-23 02:24:20,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 < tmp) && tmp <= 2) && \old(waterLevel) == waterLevel)) || (((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2021-11-23 02:24:20,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2021-11-23 02:24:20,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (!(\old(pumpRunning) == 1) || !(1 <= \old(switchedOnBeforeTS))) [2021-11-23 02:24:20,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) [2021-11-23 02:24:20,328 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && ((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 1) || !(1 <= \old(switchedOnBeforeTS))) [2021-11-23 02:24:20,355 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:24:20,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:24:20,356 INFO L158 Benchmark]: Toolchain (without parser) took 24373.50ms. Allocated memory was 107.0MB in the beginning and 306.2MB in the end (delta: 199.2MB). Free memory was 68.6MB in the beginning and 162.3MB in the end (delta: -93.7MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. [2021-11-23 02:24:20,356 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:24:20,357 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.36ms. Allocated memory is still 107.0MB. Free memory was 68.5MB in the beginning and 73.8MB in the end (delta: -5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 02:24:20,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.69ms. Allocated memory is still 107.0MB. Free memory was 73.8MB in the beginning and 71.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:24:20,357 INFO L158 Benchmark]: Boogie Preprocessor took 35.30ms. Allocated memory is still 107.0MB. Free memory was 71.4MB in the beginning and 69.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:24:20,358 INFO L158 Benchmark]: RCFGBuilder took 771.75ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 49.7MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 02:24:20,358 INFO L158 Benchmark]: TraceAbstraction took 22747.87ms. Allocated memory was 107.0MB in the beginning and 306.2MB in the end (delta: 199.2MB). Free memory was 49.1MB in the beginning and 168.6MB in the end (delta: -119.5MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. [2021-11-23 02:24:20,359 INFO L158 Benchmark]: Witness Printer took 80.57ms. Allocated memory is still 306.2MB. Free memory was 168.6MB in the beginning and 162.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:24:20,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 107.0MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.36ms. Allocated memory is still 107.0MB. Free memory was 68.5MB in the beginning and 73.8MB in the end (delta: -5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.69ms. Allocated memory is still 107.0MB. Free memory was 73.8MB in the beginning and 71.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.30ms. Allocated memory is still 107.0MB. Free memory was 71.4MB in the beginning and 69.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 771.75ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 49.7MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 22747.87ms. Allocated memory was 107.0MB in the beginning and 306.2MB in the end (delta: 199.2MB). Free memory was 49.1MB in the beginning and 168.6MB in the end (delta: -119.5MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. * Witness Printer took 80.57ms. Allocated memory is still 306.2MB. Free memory was 168.6MB in the beginning and 162.3MB in the end (delta: 6.3MB). 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: 92]: 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 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.6s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 408 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 392 mSDsluCounter, 1269 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1176 mSDsCounter, 168 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 816 IncrementalHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 168 mSolverCounterUnsat, 338 mSDtfsCounter, 816 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 131 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=5, InterpolantAutomatonStates: 48, 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, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 369 PreInvPairs, 439 NumberOfFragments, 1294 HoareAnnotationTreeSize, 369 FomulaSimplifications, 680 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 31 FomulaSimplificationsInter, 824 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 692 SizeOfPredicates, 3 NumberOfNonLiveVariables, 401 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 57/67 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: 817]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && (((((1 <= aux-isPumpRunning()-aux && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 935]: Loop Invariant Derived loop invariant: (tmp == 1 && pumpRunning == 0) && waterLevel == 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && waterLevel == 1) || ((((tmp == 1 && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1)) || (((tmp == 1 && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || ((((tmp == 1 && pumpRunning == 0) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 935]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && waterLevel == 1) || ((((tmp == 1 && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1)) || (((tmp == 1 && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || ((((tmp == 1 && pumpRunning == 0) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (!(\old(pumpRunning) == 1) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && ((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 1) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 682]: Loop Invariant Derived loop invariant: (((((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 < tmp) && tmp <= 2) && \old(waterLevel) == waterLevel)) || (((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:24:20,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cd8981-3ac2-4a5f-be98-f8277cc6ea6c/bin/utaipan-EQgc7hIp5V/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