./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product41.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_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/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_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/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_3d1e2762-179a-48fe-8de0-225609060c79/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 6e630fd4f7f92b97a7712eadcda02cdabe0d357899fc48fb3e7885213e7a8b80 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:38:52,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:38:52,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:38:52,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:38:52,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:38:52,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:38:52,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:38:52,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:38:52,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:38:52,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:38:52,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:38:52,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:38:52,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:38:52,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:38:52,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:38:52,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:38:52,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:38:52,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:38:52,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:38:52,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:38:52,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:38:52,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:38:52,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:38:52,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:38:52,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:38:52,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:38:52,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:38:52,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:38:52,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:38:52,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:38:52,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:38:52,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:38:52,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:38:52,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:38:52,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:38:52,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:38:52,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:38:52,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:38:52,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:38:52,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:38:52,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:38:52,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:38:52,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:38:52,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:38:52,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:38:52,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:38:52,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:38:52,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:38:52,789 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:38:52,789 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:38:52,789 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:38:52,790 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:38:52,790 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:38:52,790 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:38:52,790 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:38:52,791 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:38:52,791 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:38:52,791 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:38:52,792 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:38:52,792 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:38:52,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:38:52,793 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:38:52,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:38:52,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:38:52,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:38:52,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:38:52,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:38:52,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:38:52,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:38:52,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:38:52,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:38:52,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:38:52,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:38:52,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:38:52,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:38:52,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:38:52,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:38:52,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:38:52,797 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:38:52,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:38:52,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:38:52,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:38:52,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:38:52,798 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_3d1e2762-179a-48fe-8de0-225609060c79/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e630fd4f7f92b97a7712eadcda02cdabe0d357899fc48fb3e7885213e7a8b80 [2021-11-23 03:38:53,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:38:53,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:38:53,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:38:53,062 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:38:53,063 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:38:53,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2021-11-23 03:38:53,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/data/f0d879e5d/4ae9803ce3ad43568fef54a5235814df/FLAG11deadda8 [2021-11-23 03:38:53,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:38:53,677 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c [2021-11-23 03:38:53,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/data/f0d879e5d/4ae9803ce3ad43568fef54a5235814df/FLAG11deadda8 [2021-11-23 03:38:53,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/data/f0d879e5d/4ae9803ce3ad43568fef54a5235814df [2021-11-23 03:38:53,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:38:53,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:38:53,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:38:53,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:38:53,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:38:53,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:53" (1/1) ... [2021-11-23 03:38:53,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55027d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:53, skipping insertion in model container [2021-11-23 03:38:53,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:53" (1/1) ... [2021-11-23 03:38:53,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:38:54,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:38:54,396 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_3d1e2762-179a-48fe-8de0-225609060c79/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c[18234,18247] [2021-11-23 03:38:54,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:38:54,408 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:38:54,520 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_3d1e2762-179a-48fe-8de0-225609060c79/sv-benchmarks/c/product-lines/minepump_spec5_product41.cil.c[18234,18247] [2021-11-23 03:38:54,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:38:54,541 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:38:54,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54 WrapperNode [2021-11-23 03:38:54,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:38:54,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:38:54,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:38:54,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:38:54,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,614 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 251 [2021-11-23 03:38:54,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:38:54,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:38:54,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:38:54,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:38:54,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:38:54,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:38:54,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:38:54,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:38:54,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (1/1) ... [2021-11-23 03:38:54,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:38:54,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:38:54,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:38:54,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:38:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:38:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 03:38:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 03:38:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 03:38:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 03:38:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 03:38:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 03:38:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 03:38:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 03:38:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-23 03:38:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-23 03:38:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:38:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 03:38:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 03:38:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:38:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:38:54,834 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:38:54,836 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:38:55,235 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:38:55,352 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:38:55,352 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 03:38:55,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:55 BoogieIcfgContainer [2021-11-23 03:38:55,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:38:55,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:38:55,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:38:55,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:38:55,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:38:53" (1/3) ... [2021-11-23 03:38:55,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264be42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:55, skipping insertion in model container [2021-11-23 03:38:55,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:54" (2/3) ... [2021-11-23 03:38:55,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264be42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:55, skipping insertion in model container [2021-11-23 03:38:55,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:55" (3/3) ... [2021-11-23 03:38:55,371 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product41.cil.c [2021-11-23 03:38:55,381 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:38:55,381 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:38:55,449 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:38:55,459 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 03:38:55,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:38:55,480 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 03:38:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 03:38:55,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:55,488 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 03:38:55,488 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:55,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:55,494 INFO L85 PathProgramCache]: Analyzing trace with hash 403795968, now seen corresponding path program 1 times [2021-11-23 03:38:55,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:55,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5719939] [2021-11-23 03:38:55,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:55,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:55,803 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 03:38:55,803 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:55,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5719939] [2021-11-23 03:38:55,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5719939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:55,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:55,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:38:55,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787528552] [2021-11-23 03:38:55,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:55,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:38:55,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:55,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:38:55,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:38:55,857 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 03:38:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:55,954 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2021-11-23 03:38:55,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:38:55,957 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 03:38:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:55,971 INFO L225 Difference]: With dead ends: 100 [2021-11-23 03:38:55,972 INFO L226 Difference]: Without dead ends: 46 [2021-11-23 03:38:55,977 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 03:38:55,982 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:55,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:38:55,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-23 03:38:56,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-23 03:38:56,019 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 03:38:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2021-11-23 03:38:56,022 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2021-11-23 03:38:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:56,024 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2021-11-23 03:38:56,024 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 03:38:56,025 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2021-11-23 03:38:56,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:38:56,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:56,029 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] [2021-11-23 03:38:56,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:38:56,030 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:56,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:56,031 INFO L85 PathProgramCache]: Analyzing trace with hash 2120210632, now seen corresponding path program 1 times [2021-11-23 03:38:56,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:56,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776360081] [2021-11-23 03:38:56,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:56,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:56,123 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 03:38:56,123 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:56,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776360081] [2021-11-23 03:38:56,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776360081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:56,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:56,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:38:56,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106811380] [2021-11-23 03:38:56,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:56,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:38:56,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:56,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:38:56,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:38:56,129 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 03:38:56,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:56,189 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2021-11-23 03:38:56,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:38:56,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 22 [2021-11-23 03:38:56,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:56,191 INFO L225 Difference]: With dead ends: 69 [2021-11-23 03:38:56,191 INFO L226 Difference]: Without dead ends: 38 [2021-11-23 03:38:56,192 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 03:38:56,194 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 03:38:56,195 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 03:38:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-23 03:38:56,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-23 03:38:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-23 03:38:56,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2021-11-23 03:38:56,205 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 22 [2021-11-23 03:38:56,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:56,206 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-11-23 03:38:56,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 03:38:56,206 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2021-11-23 03:38:56,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:38:56,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:56,208 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 03:38:56,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:38:56,208 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:56,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:56,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1586864102, now seen corresponding path program 1 times [2021-11-23 03:38:56,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:56,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906385971] [2021-11-23 03:38:56,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:56,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:56,297 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 03:38:56,297 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:56,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906385971] [2021-11-23 03:38:56,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906385971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:56,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:56,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:38:56,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772370118] [2021-11-23 03:38:56,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:56,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:38:56,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:56,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:38:56,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:38:56,301 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 03:38:56,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:56,334 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2021-11-23 03:38:56,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:38:56,335 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), 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 24 [2021-11-23 03:38:56,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:56,336 INFO L225 Difference]: With dead ends: 74 [2021-11-23 03:38:56,336 INFO L226 Difference]: Without dead ends: 38 [2021-11-23 03:38:56,337 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 03:38:56,338 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:56,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 33 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:38:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-23 03:38:56,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-23 03:38:56,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-23 03:38:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2021-11-23 03:38:56,347 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2021-11-23 03:38:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:56,349 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2021-11-23 03:38:56,349 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), 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 03:38:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2021-11-23 03:38:56,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 03:38:56,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:56,351 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 03:38:56,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:38:56,351 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:56,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:56,352 INFO L85 PathProgramCache]: Analyzing trace with hash 42707982, now seen corresponding path program 1 times [2021-11-23 03:38:56,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:56,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483504383] [2021-11-23 03:38:56,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:56,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:56,537 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 03:38:56,537 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:56,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483504383] [2021-11-23 03:38:56,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483504383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:56,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:56,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:38:56,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277857433] [2021-11-23 03:38:56,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:56,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:38:56,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:56,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:38:56,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:38:56,542 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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 03:38:56,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:56,681 INFO L93 Difference]: Finished difference Result 119 states and 147 transitions. [2021-11-23 03:38:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:38:56,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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 03:38:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:56,684 INFO L225 Difference]: With dead ends: 119 [2021-11-23 03:38:56,684 INFO L226 Difference]: Without dead ends: 83 [2021-11-23 03:38:56,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:38:56,687 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 68 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:56,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 139 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:38:56,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-23 03:38:56,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 68. [2021-11-23 03:38:56,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 12 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 03:38:56,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2021-11-23 03:38:56,704 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 27 [2021-11-23 03:38:56,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:56,704 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2021-11-23 03:38:56,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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 03:38:56,705 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2021-11-23 03:38:56,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 03:38:56,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:56,706 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 03:38:56,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:38:56,707 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:56,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:56,708 INFO L85 PathProgramCache]: Analyzing trace with hash 868809498, now seen corresponding path program 1 times [2021-11-23 03:38:56,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:56,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301867896] [2021-11-23 03:38:56,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:56,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:56,955 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 03:38:56,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:56,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301867896] [2021-11-23 03:38:56,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301867896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:56,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:56,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 03:38:56,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50496286] [2021-11-23 03:38:56,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:56,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:38:56,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:56,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:38:56,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:38:56,964 INFO L87 Difference]: Start difference. First operand 68 states and 82 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 03:38:57,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:57,408 INFO L93 Difference]: Finished difference Result 183 states and 220 transitions. [2021-11-23 03:38:57,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 03:38:57,409 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 03:38:57,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:57,417 INFO L225 Difference]: With dead ends: 183 [2021-11-23 03:38:57,417 INFO L226 Difference]: Without dead ends: 147 [2021-11-23 03:38:57,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-11-23 03:38:57,428 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 160 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:57,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 223 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:38:57,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-11-23 03:38:57,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 134. [2021-11-23 03:38:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 103 states have internal predecessors, (112), 24 states have call successors, (24), 18 states have call predecessors, (24), 19 states have return successors, (25), 22 states have call predecessors, (25), 24 states have call successors, (25) [2021-11-23 03:38:57,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 161 transitions. [2021-11-23 03:38:57,477 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 161 transitions. Word has length 30 [2021-11-23 03:38:57,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:57,477 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 161 transitions. [2021-11-23 03:38:57,478 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 03:38:57,479 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 161 transitions. [2021-11-23 03:38:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 03:38:57,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:57,482 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 03:38:57,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:38:57,483 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:57,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:57,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1291627812, now seen corresponding path program 1 times [2021-11-23 03:38:57,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:57,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398379671] [2021-11-23 03:38:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:57,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:57,547 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 03:38:57,547 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:57,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398379671] [2021-11-23 03:38:57,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398379671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:57,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:57,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:38:57,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115314611] [2021-11-23 03:38:57,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:57,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:38:57,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:57,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:38:57,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:38:57,550 INFO L87 Difference]: Start difference. First operand 134 states and 161 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 03:38:57,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:57,683 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2021-11-23 03:38:57,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:38:57,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2021-11-23 03:38:57,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:57,687 INFO L225 Difference]: With dead ends: 313 [2021-11-23 03:38:57,687 INFO L226 Difference]: Without dead ends: 181 [2021-11-23 03:38:57,691 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 03:38:57,694 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 19 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:57,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 191 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:38:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-23 03:38:57,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 171. [2021-11-23 03:38:57,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 115 states have (on average 1.208695652173913) internal successors, (139), 129 states have internal predecessors, (139), 30 states have call successors, (30), 23 states have call predecessors, (30), 25 states have return successors, (34), 30 states have call predecessors, (34), 30 states have call successors, (34) [2021-11-23 03:38:57,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 203 transitions. [2021-11-23 03:38:57,744 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 203 transitions. Word has length 30 [2021-11-23 03:38:57,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:57,744 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 203 transitions. [2021-11-23 03:38:57,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 03:38:57,745 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 203 transitions. [2021-11-23 03:38:57,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 03:38:57,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:57,753 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 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] [2021-11-23 03:38:57,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:38:57,754 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:57,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:57,754 INFO L85 PathProgramCache]: Analyzing trace with hash 238055912, now seen corresponding path program 1 times [2021-11-23 03:38:57,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:57,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442109824] [2021-11-23 03:38:57,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:57,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 03:38:57,901 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:57,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442109824] [2021-11-23 03:38:57,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442109824] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:38:57,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191843274] [2021-11-23 03:38:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:57,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:57,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:38:57,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:38:57,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:38:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:58,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 03:38:58,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:38:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:38:58,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:38:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 03:38:58,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191843274] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:38:58,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [940645764] [2021-11-23 03:38:58,483 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-23 03:38:58,483 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:38:58,488 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:38:58,494 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:38:58,494 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:39:09,676 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 320 for LOIs [2021-11-23 03:39:09,736 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 48 for LOIs [2021-11-23 03:39:10,114 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2021-11-23 03:39:10,131 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:39:19,762 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2530#(and (<= 1 ~pumpRunning~0) (<= |old(~waterLevel~0)| 2147483647) (<= 0 |timeShift_isMethaneAlarm_~retValue_acc~4#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483647) (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (<= |timeShift_isMethaneLevelCritical_~retValue_acc~0#1| 0) (<= 0 |timeShift_isHighWaterLevel_~tmp~4#1|) (<= 0 |timeShift_isMethaneLevelCritical_#res#1|) (<= ~pumpRunning~0 1) (<= 2 |timeShift_getWaterLevel_~retValue_acc~1#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (<= 1 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= 2 ~waterLevel~0) (<= |timeShift_isMethaneLevelCritical_#res#1| 0) (<= 1 |timeShift_isHighWaterLevel_~tmp___0~1#1|) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~2#1| 0) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (<= |timeShift_activatePump_~tmp~3#1| 0) (<= |timeShift_processEnvironment_~tmp~2#1| 1) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= |timeShift_isMethaneAlarm_#res#1| 0) (<= 2 |old(~waterLevel~0)|) (<= ~waterLevel~0 2147483647) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (<= |timeShift_isHighWaterLevel_~retValue_acc~6#1| 1) (= |#NULL.offset| 0) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~2#1|) (<= |timeShift_isHighWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isHighWaterLevel_~retValue_acc~6#1|) (<= 0 |timeShift_isMethaneAlarm_#res#1|) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= 0 |timeShift_activatePump_~tmp~3#1|) (<= |timeShift_isMethaneAlarm_~retValue_acc~4#1| 0) (<= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (<= 0 |timeShift_isMethaneLevelCritical_~retValue_acc~0#1|) (<= 1 |timeShift_isHighWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483647) (= ~cleanupTimeShifts~0 4) (<= |timeShift_isHighWaterLevel_~tmp~4#1| 0) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2021-11-23 03:39:19,763 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:39:19,763 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:39:19,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2021-11-23 03:39:19,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297507083] [2021-11-23 03:39:19,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:39:19,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:39:19,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:19,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:39:19,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=937, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 03:39:19,766 INFO L87 Difference]: Start difference. First operand 171 states and 203 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 5 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-23 03:39:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:21,760 INFO L93 Difference]: Finished difference Result 1157 states and 1426 transitions. [2021-11-23 03:39:21,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-23 03:39:21,761 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 5 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 50 [2021-11-23 03:39:21,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:21,779 INFO L225 Difference]: With dead ends: 1157 [2021-11-23 03:39:21,779 INFO L226 Difference]: Without dead ends: 988 [2021-11-23 03:39:21,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 135 SyntacticMatches, 4 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1693 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=716, Invalid=4254, Unknown=0, NotChecked=0, Total=4970 [2021-11-23 03:39:21,784 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 709 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:21,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 710 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 03:39:21,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2021-11-23 03:39:21,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 681. [2021-11-23 03:39:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 460 states have (on average 1.1695652173913043) internal successors, (538), 501 states have internal predecessors, (538), 113 states have call successors, (113), 101 states have call predecessors, (113), 107 states have return successors, (133), 108 states have call predecessors, (133), 113 states have call successors, (133) [2021-11-23 03:39:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 784 transitions. [2021-11-23 03:39:21,879 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 784 transitions. Word has length 50 [2021-11-23 03:39:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:21,880 INFO L470 AbstractCegarLoop]: Abstraction has 681 states and 784 transitions. [2021-11-23 03:39:21,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 5 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-23 03:39:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 784 transitions. [2021-11-23 03:39:21,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 03:39:21,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:39:21,884 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 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, 1] [2021-11-23 03:39:21,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:39:22,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 03:39:22,099 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:39:22,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:39:22,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1378066669, now seen corresponding path program 1 times [2021-11-23 03:39:22,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:39:22,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175004400] [2021-11-23 03:39:22,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:22,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:39:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 03:39:22,210 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:39:22,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175004400] [2021-11-23 03:39:22,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175004400] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:39:22,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749526271] [2021-11-23 03:39:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:39:22,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:39:22,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:39:22,212 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:39:22,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:39:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:39:22,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 03:39:22,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:39:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 03:39:22,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:39:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 03:39:22,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749526271] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:39:22,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1827435202] [2021-11-23 03:39:22,541 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2021-11-23 03:39:22,541 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:39:22,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:39:22,541 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:39:22,542 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:39:30,100 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 324 for LOIs [2021-11-23 03:39:30,161 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 37 for LOIs [2021-11-23 03:39:30,409 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 57 for LOIs [2021-11-23 03:39:30,422 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 33 for LOIs [2021-11-23 03:39:30,425 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:39:39,260 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5839#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |old(~switchedOnBeforeTS~0)| 2147483647) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 (+ |old(~switchedOnBeforeTS~0)| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483647) (= ~head~0.base 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483647) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483648)))' at error location [2021-11-23 03:39:39,260 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:39:39,260 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:39:39,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2021-11-23 03:39:39,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673564711] [2021-11-23 03:39:39,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:39:39,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 03:39:39,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:39:39,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 03:39:39,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1336, Unknown=0, NotChecked=0, Total=1560 [2021-11-23 03:39:39,262 INFO L87 Difference]: Start difference. First operand 681 states and 784 transitions. Second operand has 14 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-23 03:39:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:39:40,740 INFO L93 Difference]: Finished difference Result 794 states and 925 transitions. [2021-11-23 03:39:40,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-23 03:39:40,740 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) Word has length 52 [2021-11-23 03:39:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:39:40,741 INFO L225 Difference]: With dead ends: 794 [2021-11-23 03:39:40,741 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:39:40,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1805 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=667, Invalid=5033, Unknown=0, NotChecked=0, Total=5700 [2021-11-23 03:39:40,745 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 529 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:39:40,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 583 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 03:39:40,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:39:40,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:39:40,747 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 03:39:40,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:39:40,747 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2021-11-23 03:39:40,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:39:40,747 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:39:40,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-23 03:39:40,748 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:39:40,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:39:40,750 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:39:40,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:39:40,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 03:39:40,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:39:48,667 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 337 343) no Hoare annotation was computed. [2021-11-23 03:39:48,667 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 337 343) the Hoare annotation is: true [2021-11-23 03:39:48,667 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 134 145) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 1))) (let ((.cse7 (= ~methaneLevelCritical~0 0)) (.cse13 (= |old(~methaneLevelCritical~0)| 0)) (.cse12 (not .cse3)) (.cse11 (= ~pumpRunning~0 0))) (let ((.cse4 (not (= ~waterLevel~0 1))) (.cse6 (not .cse11)) (.cse0 (and .cse13 .cse12)) (.cse2 (not .cse7)) (.cse8 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse5 (not .cse13)) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (<= 2 ~waterLevel~0))) (.cse10 (not (<= ~waterLevel~0 2)))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse1) (or .cse0 .cse4 .cse1 .cse2 .cse8 .cse3) (or .cse5 .cse6 .cse7 .cse1 .cse9 .cse10) (or .cse0 .cse11 .cse1 .cse2 .cse8 .cse3) (or .cse5 .cse7 .cse1 .cse12 .cse8) (or .cse5 .cse7 .cse1 .cse9 .cse12 .cse10))))) [2021-11-23 03:39:48,668 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 134 145) no Hoare annotation was computed. [2021-11-23 03:39:48,668 INFO L854 garLoopResultBuilder]: At program point L353(lines 353 361) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (not (= |old(~waterLevel~0)| 1)) .cse1 (and (< 0 (+ |timeShift_processEnvironment_~tmp~2#1| 1)) .cse2 (<= |timeShift_processEnvironment_~tmp~2#1| 0) (= ~waterLevel~0 1) .cse3)) (or .cse1 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (and (= ~methaneLevelCritical~0 0) (not (= |old(~pumpRunning~0)| 1))) .cse0 (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 .cse0))) [2021-11-23 03:39:48,668 INFO L854 garLoopResultBuilder]: At program point L349(lines 349 366) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse5 (= |old(~pumpRunning~0)| 0)) (.cse12 (= ~methaneLevelCritical~0 0))) (let ((.cse4 (and .cse12 (not (= |old(~pumpRunning~0)| 1)))) (.cse0 (not .cse12)) (.cse1 (= ~pumpRunning~0 1)) (.cse8 (not .cse5)) (.cse2 (= ~waterLevel~0 1)) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse7 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse11 (not .cse9)) (.cse10 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (not (= 1 ~systemActive~0)))) (and (or (and (or .cse0 .cse1) .cse2) .cse3 .cse4 .cse5 .cse6) (or .cse7 .cse3 .cse4 .cse0 .cse1) (or .cse8 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse8 (not (= |old(~waterLevel~0)| 1)) .cse3 (and .cse9 .cse2 .cse10)) (or .cse3 (and (or (and .cse11 .cse2) (and .cse9 (= 2 ~waterLevel~0))) .cse10) .cse6) (or .cse7 (and .cse11 .cse10) .cse3 .cse5)))) [2021-11-23 03:39:48,668 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2021-11-23 03:39:48,668 INFO L858 garLoopResultBuilder]: For program point L317-2(lines 313 335) no Hoare annotation was computed. [2021-11-23 03:39:48,668 INFO L854 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse11 (= |old(~pumpRunning~0)| 0)) (.cse13 (= ~pumpRunning~0 0))) (let ((.cse7 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not .cse13)) (.cse2 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0)) (.cse3 (= ~waterLevel~0 1)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse12 (not .cse11)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse10 (= ~pumpRunning~0 1))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5 .cse6) (or .cse7 .cse0 .cse8 .cse9 .cse10) (or .cse7 .cse0 .cse11 (and .cse1 .cse2 .cse4)) (or .cse12 (not (= |old(~waterLevel~0)| 1)) .cse0 (and (< 0 (+ |timeShift_processEnvironment_~tmp~2#1| 1)) .cse13 .cse2 (<= |timeShift_processEnvironment_~tmp~2#1| 0) .cse3 .cse4)) (or .cse12 .cse0 .cse5 .cse6) (or .cse0 .cse8 .cse9 (not (= |old(~waterLevel~0)| 2)) .cse10)))) [2021-11-23 03:39:48,669 INFO L858 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2021-11-23 03:39:48,669 INFO L854 garLoopResultBuilder]: At program point L359(line 359) the Hoare annotation is: (let ((.cse2 (< 0 (+ |timeShift_processEnvironment_~tmp~2#1| 1))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (<= |timeShift_processEnvironment_~tmp~2#1| 0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 .cse4 (= ~waterLevel~0 1) .cse5)) (or .cse1 .cse6 (and .cse2 .cse3 (= 2 ~waterLevel~0) .cse4 .cse5)) (or .cse1 (and (= ~methaneLevelCritical~0 0) (not (= |old(~pumpRunning~0)| 1))) .cse0 .cse6) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 .cse0))) [2021-11-23 03:39:48,669 INFO L854 garLoopResultBuilder]: At program point L950(line 950) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 .cse0))) [2021-11-23 03:39:48,669 INFO L854 garLoopResultBuilder]: At program point L364(line 364) the Hoare annotation is: (let ((.cse9 (= |old(~pumpRunning~0)| 0))) (let ((.cse5 (not .cse9)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse6 (not (= ~pumpRunning~0 0))) (.cse7 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (and .cse6 (= ~waterLevel~0 1) .cse7) .cse8) (or .cse5 .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (and .cse6 .cse7) .cse1 .cse9) (or .cse1 .cse2 .cse3 .cse8 .cse4)))) [2021-11-23 03:39:48,669 INFO L854 garLoopResultBuilder]: At program point L364-1(lines 345 369) the Hoare annotation is: (let ((.cse11 (= ~pumpRunning~0 0)) (.cse17 (= ~methaneLevelCritical~0 0))) (let ((.cse8 (not .cse17)) (.cse9 (= ~pumpRunning~0 1)) (.cse16 (not .cse11)) (.cse6 (= ~waterLevel~0 1)) (.cse12 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse10 (not .cse2)) (.cse7 (and .cse17 (not (= |old(~pumpRunning~0)| 1)))) (.cse13 (not (<= |old(~waterLevel~0)| 2))) (.cse14 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and .cse16 .cse6 .cse12)) (.cse5 (or .cse8 .cse9)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6) .cse1 .cse7 .cse2 .cse4) (or .cse0 .cse1 .cse7 .cse8 .cse9) (or .cse10 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (< 0 (+ |timeShift_processEnvironment_~tmp~2#1| 1)) .cse11 (<= |timeShift_processEnvironment_~tmp~2#1| 0) .cse6 .cse12)) (or .cse10 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0) .cse13 .cse14) (or .cse10 (and .cse11 .cse12) .cse1 .cse7 .cse13 .cse14) (let ((.cse15 (= 2 ~waterLevel~0))) (or .cse1 .cse3 (and .cse11 .cse15 .cse12) (and .cse15 .cse5) .cse4)) (or .cse0 (and .cse16 .cse12) .cse1 .cse2))))) [2021-11-23 03:39:48,670 INFO L854 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse11 (= ~pumpRunning~0 0)) (.cse14 (= |old(~pumpRunning~0)| 0)) (.cse15 (= ~methaneLevelCritical~0 0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse5 (not .cse15)) (.cse6 (= ~pumpRunning~0 1)) (.cse4 (and .cse15 (not (= |old(~pumpRunning~0)| 1)))) (.cse10 (not .cse14)) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (not (= 1 ~systemActive~0))) (.cse13 (not .cse11)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse12 (= ~waterLevel~0 1)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 .cse5 .cse6) (or .cse2 .cse7 .cse8 .cse9) (or .cse10 .cse1 .cse2 (and .cse11 .cse12)) (or .cse2 (and .cse13 (or .cse5 .cse6)) .cse4 .cse14 (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse2 .cse8 .cse3 .cse9) (or .cse10 .cse11 .cse2 .cse8 .cse9) (or .cse0 .cse2 .cse14 (and .cse13 (or .cse7 .cse12) .cse3))))) [2021-11-23 03:39:48,670 INFO L854 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse16 (= |old(~pumpRunning~0)| 0)) (.cse15 (= ~methaneLevelCritical~0 0))) (let ((.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse9 (not .cse15)) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (= ~pumpRunning~0 1)) (.cse5 (not .cse16)) (.cse6 (= ~pumpRunning~0 0)) (.cse13 (not (<= |old(~waterLevel~0)| 2))) (.cse14 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse17 (not (= |timeShift___utac_acc__Specification5_spec__2_#t~ret4#1| 0))) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~waterLevel~0 1)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse8 (= |timeShift___utac_acc__Specification5_spec__2_#t~ret4#1| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse5 .cse4 .cse1 (and .cse6 .cse7 .cse8)) (or .cse0 .cse1 .cse9 .cse10 .cse11) (or .cse1 (and .cse12 .cse8) .cse13 .cse14) (or .cse1 .cse9 .cse10 .cse13 .cse11 .cse14) (or .cse5 .cse6 .cse1 .cse13 .cse14) (or .cse15 .cse1 .cse16 .cse17 .cse2) (or .cse0 .cse1 .cse16 (and .cse17 (or .cse12 .cse7) .cse3 .cse8))))) [2021-11-23 03:39:48,670 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2021-11-23 03:39:48,670 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2021-11-23 03:39:48,670 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 310 336) the Hoare annotation is: (let ((.cse11 (= ~pumpRunning~0 0)) (.cse14 (= |old(~pumpRunning~0)| 0)) (.cse15 (= ~methaneLevelCritical~0 0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse5 (not .cse15)) (.cse6 (= ~pumpRunning~0 1)) (.cse4 (and .cse15 (not (= |old(~pumpRunning~0)| 1)))) (.cse10 (not .cse14)) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (not (= 1 ~systemActive~0))) (.cse13 (not .cse11)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse12 (= ~waterLevel~0 1)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse4 .cse5 .cse6) (or .cse2 .cse7 .cse8 .cse9) (or .cse10 .cse1 .cse2 (and .cse11 .cse12)) (or .cse2 (and .cse13 (or .cse5 .cse6)) .cse4 .cse14 (not (= |old(~waterLevel~0)| 2))) (or .cse0 .cse2 .cse8 .cse3 .cse9) (or .cse10 .cse11 .cse2 .cse8 .cse9) (or .cse0 .cse2 .cse14 (and .cse13 (or .cse7 .cse12) .cse3))))) [2021-11-23 03:39:48,670 INFO L854 garLoopResultBuilder]: At program point L80-1(lines 72 100) the Hoare annotation is: (let ((.cse21 (= ~methaneLevelCritical~0 0))) (let ((.cse3 (not .cse21)) (.cse4 (= ~pumpRunning~0 1)) (.cse8 (= ~pumpRunning~0 0))) (let ((.cse11 (= |old(~pumpRunning~0)| 0)) (.cse13 (not .cse8)) (.cse14 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0)) (.cse19 (or .cse3 .cse4)) (.cse20 (= 1 ~systemActive~0)) (.cse16 (= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse2 (and .cse21 (not (= |old(~pumpRunning~0)| 1)))) (.cse10 (and .cse13 .cse14 .cse19 .cse20 .cse16 .cse6)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse15 (not .cse11)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not .cse20)) (.cse17 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (.cse12 (and .cse13 .cse14 .cse20 .cse16 .cse6)) (.cse9 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse6 .cse7) (or .cse8 .cse1 .cse2 .cse9 .cse10) (or .cse0 .cse1 .cse11 .cse12 .cse9) (or .cse1 .cse2 .cse11 .cse9 .cse10) (or .cse0 .cse1 .cse11 (and .cse13 .cse14 .cse6)) (or .cse15 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (< 0 (+ |timeShift_processEnvironment_~tmp~2#1| 1)) .cse8 .cse14 (<= |timeShift_processEnvironment_~tmp~2#1| 0) .cse16 .cse6)) (or .cse15 .cse1 .cse5 .cse17 .cse7) (let ((.cse18 (= 2 ~waterLevel~0))) (or .cse1 (and .cse18 .cse19 .cse17) (and .cse8 .cse18 .cse6 .cse17) .cse12 .cse9))))))) [2021-11-23 03:39:48,671 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 310 336) no Hoare annotation was computed. [2021-11-23 03:39:48,671 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 950) no Hoare annotation was computed. [2021-11-23 03:39:48,671 INFO L854 garLoopResultBuilder]: At program point L324-1(lines 324 330) the Hoare annotation is: (let ((.cse11 (= ~pumpRunning~0 0)) (.cse17 (= ~methaneLevelCritical~0 0))) (let ((.cse8 (not .cse17)) (.cse9 (= ~pumpRunning~0 1)) (.cse16 (not .cse11)) (.cse6 (= ~waterLevel~0 1)) (.cse12 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse10 (not .cse2)) (.cse7 (and .cse17 (not (= |old(~pumpRunning~0)| 1)))) (.cse13 (not (<= |old(~waterLevel~0)| 2))) (.cse14 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and .cse16 .cse6 .cse12)) (.cse5 (or .cse8 .cse9)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6) .cse1 .cse7 .cse2 .cse4) (or .cse0 .cse1 .cse7 .cse8 .cse9) (or .cse10 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (< 0 (+ |timeShift_processEnvironment_~tmp~2#1| 1)) .cse11 (<= |timeShift_processEnvironment_~tmp~2#1| 0) .cse6 .cse12)) (or .cse10 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0) .cse13 .cse14) (or .cse10 (and .cse11 .cse12) .cse1 .cse7 .cse13 .cse14) (let ((.cse15 (= 2 ~waterLevel~0))) (or .cse1 .cse3 (and .cse11 .cse15 .cse12) (and .cse15 .cse5) .cse4)) (or .cse0 (and .cse16 .cse12) .cse1 .cse2))))) [2021-11-23 03:39:48,672 INFO L858 garLoopResultBuilder]: For program point L225(line 225) no Hoare annotation was computed. [2021-11-23 03:39:48,672 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 204 233) no Hoare annotation was computed. [2021-11-23 03:39:48,672 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 204 233) the Hoare annotation is: true [2021-11-23 03:39:48,672 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 222) no Hoare annotation was computed. [2021-11-23 03:39:48,672 INFO L861 garLoopResultBuilder]: At program point L218-1(lines 218 222) the Hoare annotation is: true [2021-11-23 03:39:48,672 INFO L861 garLoopResultBuilder]: At program point L214-2(lines 214 228) the Hoare annotation is: true [2021-11-23 03:39:48,672 INFO L861 garLoopResultBuilder]: At program point L210(line 210) the Hoare annotation is: true [2021-11-23 03:39:48,672 INFO L858 garLoopResultBuilder]: For program point L210-1(line 210) no Hoare annotation was computed. [2021-11-23 03:39:48,673 INFO L861 garLoopResultBuilder]: At program point L229(lines 204 233) the Hoare annotation is: true [2021-11-23 03:39:48,673 INFO L861 garLoopResultBuilder]: At program point L291-2(lines 291 298) the Hoare annotation is: true [2021-11-23 03:39:48,673 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 516) no Hoare annotation was computed. [2021-11-23 03:39:48,673 INFO L858 garLoopResultBuilder]: For program point L510-1(lines 510 516) no Hoare annotation was computed. [2021-11-23 03:39:48,673 INFO L861 garLoopResultBuilder]: At program point L539(lines 480 543) the Hoare annotation is: true [2021-11-23 03:39:48,673 INFO L854 garLoopResultBuilder]: At program point L502(line 502) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (let ((.cse0 (= 2 ~waterLevel~0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse5 (or (and .cse7 .cse1 .cse3 .cse4) (and .cse7 (<= 2 ~waterLevel~0) .cse1 .cse3 (<= ~waterLevel~0 2)))) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (or (and .cse0 .cse1 (not .cse2) .cse3) (and (or (and .cse2 .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse3)) (= ~pumpRunning~0 1)) (and .cse5 .cse6) (and .cse2 .cse5) (and (not .cse7) .cse1 .cse3 .cse6)))) [2021-11-23 03:39:48,673 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 03:39:48,673 INFO L854 garLoopResultBuilder]: At program point L536(lines 489 537) the Hoare annotation is: false [2021-11-23 03:39:48,673 INFO L858 garLoopResultBuilder]: For program point L491(lines 490 535) no Hoare annotation was computed. [2021-11-23 03:39:48,674 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:39:48,674 INFO L854 garLoopResultBuilder]: At program point L512(line 512) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= 2 ~waterLevel~0) (or (not .cse1) (= ~pumpRunning~0 1)) .cse2 .cse3) (and .cse2 .cse3 .cse4 .cse5) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse3 (<= ~waterLevel~0 2)) (and (not .cse0) .cse2 .cse3 .cse5))) [2021-11-23 03:39:48,674 INFO L854 garLoopResultBuilder]: At program point L533(lines 490 535) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse4 (= ~waterLevel~0 1)) (.cse5 (= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (or (not .cse1) (= ~pumpRunning~0 1)) .cse2 .cse3) (and .cse2 .cse3 .cse4 .cse6) (and .cse5 .cse2 .cse3 .cse6) (and (not .cse0) .cse2 .cse3 .cse6))) [2021-11-23 03:39:48,674 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 506) no Hoare annotation was computed. [2021-11-23 03:39:48,674 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 500 506) no Hoare annotation was computed. [2021-11-23 03:39:48,674 INFO L854 garLoopResultBuilder]: At program point L526-2(lines 520 531) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse0 .cse1 (= ~waterLevel~0 1)) (and (not .cse2) .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) [2021-11-23 03:39:48,674 INFO L854 garLoopResultBuilder]: At program point L291(lines 291 298) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2021-11-23 03:39:48,674 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 122 133) no Hoare annotation was computed. [2021-11-23 03:39:48,675 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 122 133) the Hoare annotation is: (let ((.cse10 (= ~pumpRunning~0 0))) (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse5 (not (= |old(~waterLevel~0)| 1))) (.cse11 (not .cse10)) (.cse0 (not (= 1 ~systemActive~0)))) (let ((.cse2 (not (= ~pumpRunning~0 1))) (.cse8 (and (or .cse11 .cse5 .cse0) (or .cse11 .cse0 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))))) (.cse6 (not .cse1)) (.cse7 (= ~waterLevel~0 1)) (.cse9 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse2 .cse7) (or .cse8 .cse9 .cse4 .cse7) (or .cse10 .cse0 .cse9 .cse4 .cse7) (or .cse8 .cse6 .cse4 .cse7) (or .cse11 .cse0 .cse9 .cse3 .cse4))))) [2021-11-23 03:39:48,675 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 415 423) no Hoare annotation was computed. [2021-11-23 03:39:48,675 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 415 423) the Hoare annotation is: true [2021-11-23 03:39:48,677 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:39:48,679 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:39:48,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:39:48 BoogieIcfgContainer [2021-11-23 03:39:48,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:39:48,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:39:48,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:39:48,718 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:39:48,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:55" (3/4) ... [2021-11-23 03:39:48,721 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:39:48,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 03:39:48,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 03:39:48,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 03:39:48,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 03:39:48,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 03:39:48,727 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-23 03:39:48,737 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 78 nodes and edges [2021-11-23 03:39:48,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-11-23 03:39:48,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-23 03:39:48,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 03:39:48,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 03:39:48,740 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:39:48,741 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:39:48,765 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && aux-isPumpRunning()-aux == pumpRunning))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || pumpRunning == 1)) && (((!(1 == systemActive) || (\old(waterLevel) == waterLevel && aux-isPumpRunning()-aux == pumpRunning)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || pumpRunning == 1) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((methaneLevelCritical == 0 || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(aux-isPumpRunning()-aux == 0)) || !(\old(waterLevel) == 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || (((!(aux-isPumpRunning()-aux == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && aux-isPumpRunning()-aux == pumpRunning)) [2021-11-23 03:39:48,766 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) && ((((((!(methaneLevelCritical == 0) || pumpRunning == 1) && waterLevel == 1) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(methaneLevelCritical == 0)) || pumpRunning == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((0 < tmp + 1 && pumpRunning == 0) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || ((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 == waterLevel && (!(methaneLevelCritical == 0) || pumpRunning == 1))) || !(\old(waterLevel) == 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || \old(pumpRunning) == 0) [2021-11-23 03:39:48,767 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(methaneLevelCritical == 0)) || pumpRunning == 1) && ((((!(1 == systemActive) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) <= 2)) || pumpRunning == switchedOnBeforeTS) || !(2 <= \old(waterLevel)))) && ((((pumpRunning == 0 || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) == 2)) || (((((!(pumpRunning == 0) && tmp == waterLevel) && (!(methaneLevelCritical == 0) || pumpRunning == 1)) && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((((!(pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2))) && ((((!(1 == systemActive) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || (((((!(pumpRunning == 0) && tmp == waterLevel) && (!(methaneLevelCritical == 0) || pumpRunning == 1)) && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((!(pumpRunning == 0) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((((0 < tmp + 1 && pumpRunning == 0) && tmp == waterLevel) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || tmp == 2) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || ((2 == waterLevel && (!(methaneLevelCritical == 0) || pumpRunning == 1)) && tmp == 2)) || (((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS) && tmp == 2)) || ((((!(pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) [2021-11-23 03:39:48,768 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(methaneLevelCritical == 0) || pumpRunning == 1) && waterLevel == 1) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(methaneLevelCritical == 0)) || pumpRunning == 1)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((!(1 == systemActive) || (((!(pumpRunning == 0) && waterLevel == 1) || (pumpRunning == 0 && 2 == waterLevel)) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || \old(pumpRunning) == 0) [2021-11-23 03:39:48,768 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) [2021-11-23 03:39:48,768 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) && ((((((!(methaneLevelCritical == 0) || pumpRunning == 1) && waterLevel == 1) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(methaneLevelCritical == 0)) || pumpRunning == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((0 < tmp + 1 && pumpRunning == 0) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || ((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 == waterLevel && (!(methaneLevelCritical == 0) || pumpRunning == 1))) || !(\old(waterLevel) == 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || \old(pumpRunning) == 0) [2021-11-23 03:39:48,769 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((0 < tmp + 1 && pumpRunning == 0) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && (((!(1 == systemActive) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) [2021-11-23 03:39:48,813 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:39:48,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:39:48,814 INFO L158 Benchmark]: Toolchain (without parser) took 54835.22ms. Allocated memory was 102.8MB in the beginning and 411.0MB in the end (delta: 308.3MB). Free memory was 71.6MB in the beginning and 134.9MB in the end (delta: -63.3MB). Peak memory consumption was 244.8MB. Max. memory is 16.1GB. [2021-11-23 03:39:48,814 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:39:48,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.10ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 71.4MB in the beginning and 101.6MB in the end (delta: -30.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 03:39:48,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.83ms. Allocated memory is still 134.2MB. Free memory was 101.6MB in the beginning and 98.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:39:48,816 INFO L158 Benchmark]: Boogie Preprocessor took 34.14ms. Allocated memory is still 134.2MB. Free memory was 98.9MB in the beginning and 97.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:39:48,816 INFO L158 Benchmark]: RCFGBuilder took 699.52ms. Allocated memory is still 134.2MB. Free memory was 97.4MB in the beginning and 76.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 03:39:48,816 INFO L158 Benchmark]: TraceAbstraction took 53356.13ms. Allocated memory was 134.2MB in the beginning and 411.0MB in the end (delta: 276.8MB). Free memory was 75.8MB in the beginning and 141.2MB in the end (delta: -65.4MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. [2021-11-23 03:39:48,817 INFO L158 Benchmark]: Witness Printer took 95.55ms. Allocated memory is still 411.0MB. Free memory was 141.2MB in the beginning and 134.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 03:39:48,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.10ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 71.4MB in the beginning and 101.6MB in the end (delta: -30.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.83ms. Allocated memory is still 134.2MB. Free memory was 101.6MB in the beginning and 98.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.14ms. Allocated memory is still 134.2MB. Free memory was 98.9MB in the beginning and 97.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 699.52ms. Allocated memory is still 134.2MB. Free memory was 97.4MB in the beginning and 76.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 53356.13ms. Allocated memory was 134.2MB in the beginning and 411.0MB in the end (delta: 276.8MB). Free memory was 75.8MB in the beginning and 141.2MB in the end (delta: -65.4MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. * Witness Printer took 95.55ms. Allocated memory is still 411.0MB. Free memory was 141.2MB in the beginning and 134.9MB 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: 950]: 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: 53.2s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1545 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1526 mSDsluCounter, 1989 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1787 mSDsCounter, 1064 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2381 IncrementalHoareTripleChecker+Invalid, 3445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1064 mSolverCounterUnsat, 568 mSDtfsCounter, 2381 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 467 GetRequests, 294 SyntacticMatches, 4 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3531 ImplicationChecksByTransitivity, 20.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=681occurred in iteration=7, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 345 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 802 PreInvPairs, 1082 NumberOfFragments, 2597 HoareAnnotationTreeSize, 802 FomulaSimplifications, 14961 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 30 FomulaSimplificationsInter, 35872 FormulaSimplificationTreeSizeReductionInter, 7.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 358 NumberOfCodeBlocks, 358 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 448 ConstructedInterpolants, 0 QuantifiedInterpolants, 1299 SizeOfPredicates, 12 NumberOfNonLiveVariables, 866 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 117/141 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: 480]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 214]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: ((((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) && ((((((!(methaneLevelCritical == 0) || pumpRunning == 1) && waterLevel == 1) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(methaneLevelCritical == 0)) || pumpRunning == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((0 < tmp + 1 && pumpRunning == 0) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || ((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 == waterLevel && (!(methaneLevelCritical == 0) || pumpRunning == 1))) || !(\old(waterLevel) == 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || \old(pumpRunning) == 0) - InvariantResult [Line: 490]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) && waterLevel == 1) || (((2 == waterLevel && (!(methaneLevelCritical == 0) || pumpRunning == 1)) && 1 == systemActive) && splverifierCounter == 0)) || (((1 == systemActive && splverifierCounter == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || (((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS)) || (((!(pumpRunning == 0) && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: (((((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(methaneLevelCritical == 0)) || pumpRunning == 1) && ((((!(1 == systemActive) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) <= 2)) || pumpRunning == switchedOnBeforeTS) || !(2 <= \old(waterLevel)))) && ((((pumpRunning == 0 || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) == 2)) || (((((!(pumpRunning == 0) && tmp == waterLevel) && (!(methaneLevelCritical == 0) || pumpRunning == 1)) && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((((!(pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2))) && ((((!(1 == systemActive) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || (((((!(pumpRunning == 0) && tmp == waterLevel) && (!(methaneLevelCritical == 0) || pumpRunning == 1)) && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((!(pumpRunning == 0) && tmp == waterLevel) && pumpRunning == switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((((0 < tmp + 1 && pumpRunning == 0) && tmp == waterLevel) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || tmp == 2) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || ((2 == waterLevel && (!(methaneLevelCritical == 0) || pumpRunning == 1)) && tmp == 2)) || (((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS) && tmp == 2)) || ((((!(pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 291]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 291]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 353]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((0 < tmp + 1 && pumpRunning == 0) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && (((!(1 == systemActive) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && aux-isPumpRunning()-aux == pumpRunning))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || pumpRunning == 1)) && (((!(1 == systemActive) || (\old(waterLevel) == waterLevel && aux-isPumpRunning()-aux == pumpRunning)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || pumpRunning == 1) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((methaneLevelCritical == 0 || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(aux-isPumpRunning()-aux == 0)) || !(\old(waterLevel) == 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || (((!(aux-isPumpRunning()-aux == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && aux-isPumpRunning()-aux == pumpRunning)) - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: ((((((((((!(methaneLevelCritical == 0) || pumpRunning == 1) && waterLevel == 1) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(methaneLevelCritical == 0)) || pumpRunning == 1)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((!(1 == systemActive) || (((!(pumpRunning == 0) && waterLevel == 1) || (pumpRunning == 0 && 2 == waterLevel)) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || \old(pumpRunning) == 0) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: ((((((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) == 2)) && ((((((!(methaneLevelCritical == 0) || pumpRunning == 1) && waterLevel == 1) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || \old(pumpRunning) == 0) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(methaneLevelCritical == 0)) || pumpRunning == 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((0 < tmp + 1 && pumpRunning == 0) && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || ((!(pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && 2 == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 == waterLevel && (!(methaneLevelCritical == 0) || pumpRunning == 1))) || !(\old(waterLevel) == 2))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || \old(pumpRunning) == 0) - InvariantResult [Line: 489]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 950]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || \old(pumpRunning) == 0) RESULT: Ultimate proved your program to be correct! [2021-11-23 03:39:48,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1e2762-179a-48fe-8de0-225609060c79/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