./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI --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 a218bb67596641a4ce71d6987e627686ed630ab4299f0e9b54dfa98d78549c82 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:47:20,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:47:20,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:47:20,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:47:20,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:47:20,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:47:20,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:47:20,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:47:20,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:47:20,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:47:20,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:47:20,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:47:20,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:47:20,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:47:20,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:47:20,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:47:20,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:47:20,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:47:20,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:47:20,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:47:20,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:47:20,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:47:20,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:47:20,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:47:20,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:47:20,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:47:20,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:47:20,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:47:20,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:47:20,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:47:20,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:47:20,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:47:20,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:47:20,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:47:20,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:47:20,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:47:20,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:47:20,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:47:20,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:47:20,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:47:20,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:47:20,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:47:20,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:47:20,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:47:20,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:47:20,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:47:20,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:47:20,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:47:20,485 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:47:20,485 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:47:20,486 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:47:20,486 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:47:20,486 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:47:20,487 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:47:20,487 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:47:20,487 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:47:20,488 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:47:20,488 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:47:20,488 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:47:20,489 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:47:20,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:47:20,490 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:47:20,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:47:20,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:47:20,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:47:20,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:47:20,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:47:20,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:47:20,492 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:47:20,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:47:20,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:47:20,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:47:20,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:47:20,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:47:20,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:47:20,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:47:20,495 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:47:20,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:47:20,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:47:20,496 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:47:20,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:47:20,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:47:20,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:47:20,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a218bb67596641a4ce71d6987e627686ed630ab4299f0e9b54dfa98d78549c82 [2022-11-03 02:47:20,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:47:20,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:47:20,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:47:20,826 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:47:20,828 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:47:20,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2022-11-03 02:47:20,917 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/data/052de8f44/fc2fc29c3bc64b008e66d24d3124ccbf/FLAG612a42efb [2022-11-03 02:47:21,527 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:47:21,528 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2022-11-03 02:47:21,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/data/052de8f44/fc2fc29c3bc64b008e66d24d3124ccbf/FLAG612a42efb [2022-11-03 02:47:21,793 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/data/052de8f44/fc2fc29c3bc64b008e66d24d3124ccbf [2022-11-03 02:47:21,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:47:21,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:47:21,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:47:21,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:47:21,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:47:21,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:47:21" (1/1) ... [2022-11-03 02:47:21,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e39554f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:21, skipping insertion in model container [2022-11-03 02:47:21,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:47:21" (1/1) ... [2022-11-03 02:47:21,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:47:21,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:47:22,279 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_35d15a2e-bee0-4fe8-9818-3c1265a195e2/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c[3241,3254] [2022-11-03 02:47:22,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:47:22,510 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:47:22,552 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_35d15a2e-bee0-4fe8-9818-3c1265a195e2/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c[3241,3254] [2022-11-03 02:47:22,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:47:22,672 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:47:22,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22 WrapperNode [2022-11-03 02:47:22,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:47:22,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:47:22,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:47:22,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:47:22,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,771 INFO L138 Inliner]: procedures = 59, calls = 160, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 282 [2022-11-03 02:47:22,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:47:22,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:47:22,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:47:22,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:47:22,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,837 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:47:22,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:47:22,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:47:22,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:47:22,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (1/1) ... [2022-11-03 02:47:22,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:47:22,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:22,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:47:22,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:47:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:47:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 02:47:22,969 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 02:47:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 02:47:22,970 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 02:47:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 02:47:22,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 02:47:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 02:47:22,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 02:47:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:47:22,971 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:47:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 02:47:22,971 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 02:47:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 02:47:22,972 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 02:47:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:47:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 02:47:22,973 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 02:47:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:47:22,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:47:23,082 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:47:23,085 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:47:23,465 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:47:23,662 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:47:23,662 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:47:23,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:23 BoogieIcfgContainer [2022-11-03 02:47:23,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:47:23,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:47:23,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:47:23,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:47:23,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:47:21" (1/3) ... [2022-11-03 02:47:23,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556ed0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:23, skipping insertion in model container [2022-11-03 02:47:23,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:47:22" (2/3) ... [2022-11-03 02:47:23,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556ed0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:23, skipping insertion in model container [2022-11-03 02:47:23,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:23" (3/3) ... [2022-11-03 02:47:23,684 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2022-11-03 02:47:23,706 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:47:23,707 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:47:23,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:47:23,784 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7d1c057a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:47:23,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:47:23,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 02:47:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:47:23,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:23,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:23,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:23,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:23,805 INFO L85 PathProgramCache]: Analyzing trace with hash -998284583, now seen corresponding path program 1 times [2022-11-03 02:47:23,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:23,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882661388] [2022-11-03 02:47:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:23,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:47:24,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:24,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882661388] [2022-11-03 02:47:24,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882661388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:24,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:24,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:47:24,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040535613] [2022-11-03 02:47:24,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:24,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:47:24,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:24,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:47:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:47:24,115 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:47:24,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:24,240 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2022-11-03 02:47:24,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:47:24,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 02:47:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:24,255 INFO L225 Difference]: With dead ends: 130 [2022-11-03 02:47:24,255 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 02:47:24,260 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:47:24,265 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:24,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:24,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 02:47:24,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-03 02:47:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 02:47:24,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-11-03 02:47:24,338 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 17 [2022-11-03 02:47:24,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:24,339 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-11-03 02:47:24,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:47:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-11-03 02:47:24,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:47:24,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:24,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:24,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:47:24,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:24,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash -753123146, now seen corresponding path program 1 times [2022-11-03 02:47:24,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:24,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864610450] [2022-11-03 02:47:24,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:24,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:47:24,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:24,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864610450] [2022-11-03 02:47:24,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864610450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:24,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:24,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:24,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931334477] [2022-11-03 02:47:24,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:24,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:24,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:24,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:24,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:24,506 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:47:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:24,588 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-11-03 02:47:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:24,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 02:47:24,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:24,590 INFO L225 Difference]: With dead ends: 94 [2022-11-03 02:47:24,590 INFO L226 Difference]: Without dead ends: 53 [2022-11-03 02:47:24,591 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:47:24,593 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:24,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 92 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:24,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-03 02:47:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-03 02:47:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-03 02:47:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2022-11-03 02:47:24,602 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 18 [2022-11-03 02:47:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:24,603 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2022-11-03 02:47:24,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:47:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2022-11-03 02:47:24,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:47:24,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:24,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:24,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:47:24,606 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:24,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:24,607 INFO L85 PathProgramCache]: Analyzing trace with hash 733716672, now seen corresponding path program 1 times [2022-11-03 02:47:24,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:24,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839806321] [2022-11-03 02:47:24,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:24,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:47:24,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:24,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839806321] [2022-11-03 02:47:24,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839806321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:24,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:24,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:47:24,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781340885] [2022-11-03 02:47:24,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:24,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:47:24,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:24,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:47:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:24,753 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:47:24,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:24,864 INFO L93 Difference]: Finished difference Result 138 states and 180 transitions. [2022-11-03 02:47:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:47:24,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-03 02:47:24,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:24,866 INFO L225 Difference]: With dead ends: 138 [2022-11-03 02:47:24,866 INFO L226 Difference]: Without dead ends: 87 [2022-11-03 02:47:24,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:47:24,868 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 92 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:24,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 141 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:24,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-03 02:47:24,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2022-11-03 02:47:24,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 66 states have internal predecessors, (76), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (17), 12 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-03 02:47:24,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2022-11-03 02:47:24,888 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 21 [2022-11-03 02:47:24,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:24,889 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2022-11-03 02:47:24,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:47:24,889 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2022-11-03 02:47:24,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:47:24,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:24,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:24,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:47:24,891 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:24,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:24,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1549383013, now seen corresponding path program 1 times [2022-11-03 02:47:24,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:24,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766358792] [2022-11-03 02:47:24,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:24,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:25,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:47:25,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:25,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766358792] [2022-11-03 02:47:25,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766358792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:25,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:25,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:47:25,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342702083] [2022-11-03 02:47:25,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:25,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:47:25,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:25,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:47:25,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:47:25,125 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:47:25,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:25,315 INFO L93 Difference]: Finished difference Result 244 states and 322 transitions. [2022-11-03 02:47:25,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:47:25,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-03 02:47:25,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:25,318 INFO L225 Difference]: With dead ends: 244 [2022-11-03 02:47:25,318 INFO L226 Difference]: Without dead ends: 162 [2022-11-03 02:47:25,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:47:25,321 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 44 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:25,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 278 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:25,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-03 02:47:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 154. [2022-11-03 02:47:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 120 states have internal predecessors, (137), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (32), 22 states have call predecessors, (32), 30 states have call successors, (32) [2022-11-03 02:47:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 199 transitions. [2022-11-03 02:47:25,360 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 199 transitions. Word has length 24 [2022-11-03 02:47:25,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:25,361 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 199 transitions. [2022-11-03 02:47:25,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:47:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 199 transitions. [2022-11-03 02:47:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:47:25,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:25,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:25,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:47:25,364 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:25,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:25,365 INFO L85 PathProgramCache]: Analyzing trace with hash -44152356, now seen corresponding path program 1 times [2022-11-03 02:47:25,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:25,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052844022] [2022-11-03 02:47:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:25,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:47:25,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:25,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052844022] [2022-11-03 02:47:25,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052844022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:25,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:25,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:25,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103142916] [2022-11-03 02:47:25,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:25,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:25,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:25,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:25,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:25,526 INFO L87 Difference]: Start difference. First operand 154 states and 199 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:47:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:25,610 INFO L93 Difference]: Finished difference Result 236 states and 312 transitions. [2022-11-03 02:47:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:25,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-03 02:47:25,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:25,622 INFO L225 Difference]: With dead ends: 236 [2022-11-03 02:47:25,623 INFO L226 Difference]: Without dead ends: 234 [2022-11-03 02:47:25,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:25,625 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 44 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:25,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 115 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:25,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-11-03 02:47:25,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-11-03 02:47:25,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 153 states have (on average 1.3594771241830066) internal successors, (208), 182 states have internal predecessors, (208), 46 states have call successors, (46), 34 states have call predecessors, (46), 34 states have return successors, (55), 34 states have call predecessors, (55), 46 states have call successors, (55) [2022-11-03 02:47:25,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 309 transitions. [2022-11-03 02:47:25,688 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 309 transitions. Word has length 27 [2022-11-03 02:47:25,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:25,688 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 309 transitions. [2022-11-03 02:47:25,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:47:25,689 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 309 transitions. [2022-11-03 02:47:25,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-03 02:47:25,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:25,692 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-11-03 02:47:25,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:47:25,692 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:25,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:25,693 INFO L85 PathProgramCache]: Analyzing trace with hash 93449741, now seen corresponding path program 1 times [2022-11-03 02:47:25,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:25,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129955925] [2022-11-03 02:47:25,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:25,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:25,967 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:47:25,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:25,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129955925] [2022-11-03 02:47:25,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129955925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:25,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:25,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:47:25,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689945210] [2022-11-03 02:47:25,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:25,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:47:25,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:25,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:47:25,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:47:25,972 INFO L87 Difference]: Start difference. First operand 234 states and 309 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:47:26,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:26,364 INFO L93 Difference]: Finished difference Result 615 states and 835 transitions. [2022-11-03 02:47:26,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:47:26,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-11-03 02:47:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:26,371 INFO L225 Difference]: With dead ends: 615 [2022-11-03 02:47:26,371 INFO L226 Difference]: Without dead ends: 383 [2022-11-03 02:47:26,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:47:26,386 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 128 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:26,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 164 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:47:26,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-11-03 02:47:26,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 361. [2022-11-03 02:47:26,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 245 states have (on average 1.2612244897959184) internal successors, (309), 268 states have internal predecessors, (309), 57 states have call successors, (57), 51 states have call predecessors, (57), 58 states have return successors, (88), 58 states have call predecessors, (88), 57 states have call successors, (88) [2022-11-03 02:47:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 454 transitions. [2022-11-03 02:47:26,453 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 454 transitions. Word has length 48 [2022-11-03 02:47:26,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:26,454 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 454 transitions. [2022-11-03 02:47:26,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:47:26,454 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 454 transitions. [2022-11-03 02:47:26,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-03 02:47:26,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:26,459 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:26,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:47:26,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:26,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:26,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1308233817, now seen corresponding path program 1 times [2022-11-03 02:47:26,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:26,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010058538] [2022-11-03 02:47:26,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:26,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:47:26,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:26,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010058538] [2022-11-03 02:47:26,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010058538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:26,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:26,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:47:26,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512922824] [2022-11-03 02:47:26,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:26,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:47:26,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:26,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:47:26,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:26,545 INFO L87 Difference]: Start difference. First operand 361 states and 454 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-03 02:47:26,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:26,709 INFO L93 Difference]: Finished difference Result 724 states and 910 transitions. [2022-11-03 02:47:26,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:47:26,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2022-11-03 02:47:26,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:26,713 INFO L225 Difference]: With dead ends: 724 [2022-11-03 02:47:26,713 INFO L226 Difference]: Without dead ends: 365 [2022-11-03 02:47:26,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:47:26,715 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 85 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:26,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 120 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:26,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-03 02:47:26,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 352. [2022-11-03 02:47:26,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 239 states have (on average 1.2510460251046025) internal successors, (299), 261 states have internal predecessors, (299), 55 states have call successors, (55), 49 states have call predecessors, (55), 57 states have return successors, (78), 57 states have call predecessors, (78), 55 states have call successors, (78) [2022-11-03 02:47:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 432 transitions. [2022-11-03 02:47:26,765 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 432 transitions. Word has length 65 [2022-11-03 02:47:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:26,766 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 432 transitions. [2022-11-03 02:47:26,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-03 02:47:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 432 transitions. [2022-11-03 02:47:26,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-03 02:47:26,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:26,768 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:26,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:47:26,769 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:26,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1521216682, now seen corresponding path program 1 times [2022-11-03 02:47:26,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:26,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615913867] [2022-11-03 02:47:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:26,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:27,305 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:47:27,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:27,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615913867] [2022-11-03 02:47:27,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615913867] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:47:27,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957869374] [2022-11-03 02:47:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:27,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:27,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:27,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:47:27,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:47:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:27,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 02:47:27,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:47:28,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:47:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:47:28,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957869374] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:47:28,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [281055008] [2022-11-03 02:47:28,750 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2022-11-03 02:47:28,750 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:47:28,755 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:47:28,762 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:47:28,762 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:47:33,287 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 49 for LOIs [2022-11-03 02:47:33,876 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 44 for LOIs [2022-11-03 02:47:34,132 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 43 for LOIs [2022-11-03 02:47:34,143 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 306 for LOIs [2022-11-03 02:47:34,308 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2022-11-03 02:47:34,313 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:47:41,834 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5791#(and (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1|) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (= ~head~0.offset 0) (<= 1 |old(~methAndRunningLastTime~0)|) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~11#1|) (= 1 ~systemActive~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~11#1|) (<= |old(~methAndRunningLastTime~0)| 1) (<= 0 ~head~0.base) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 1) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 0)) (<= ~head~0.base 0) (= |#NULL.offset| 0) (<= ~methAndRunningLastTime~0 1) (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1|) (<= 0 |#StackHeapBarrier|) (<= 1 ~methAndRunningLastTime~0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 02:47:41,834 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:47:41,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:47:41,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 9] total 24 [2022-11-03 02:47:41,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104597912] [2022-11-03 02:47:41,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:47:41,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 02:47:41,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:41,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 02:47:41,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=2583, Unknown=0, NotChecked=0, Total=2862 [2022-11-03 02:47:41,838 INFO L87 Difference]: Start difference. First operand 352 states and 432 transitions. Second operand has 24 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 9 states have call successors, (17), 6 states have call predecessors, (17), 13 states have return successors, (18), 12 states have call predecessors, (18), 9 states have call successors, (18) [2022-11-03 02:47:45,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:45,949 INFO L93 Difference]: Finished difference Result 1497 states and 2176 transitions. [2022-11-03 02:47:45,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-11-03 02:47:45,950 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 9 states have call successors, (17), 6 states have call predecessors, (17), 13 states have return successors, (18), 12 states have call predecessors, (18), 9 states have call successors, (18) Word has length 62 [2022-11-03 02:47:45,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:45,959 INFO L225 Difference]: With dead ends: 1497 [2022-11-03 02:47:45,959 INFO L226 Difference]: Without dead ends: 1104 [2022-11-03 02:47:45,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3453 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=1015, Invalid=9085, Unknown=0, NotChecked=0, Total=10100 [2022-11-03 02:47:45,967 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 920 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:45,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 801 Invalid, 2996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-03 02:47:45,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-11-03 02:47:46,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 694. [2022-11-03 02:47:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 473 states have (on average 1.2262156448202959) internal successors, (580), 514 states have internal predecessors, (580), 109 states have call successors, (109), 95 states have call predecessors, (109), 111 states have return successors, (153), 112 states have call predecessors, (153), 109 states have call successors, (153) [2022-11-03 02:47:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 842 transitions. [2022-11-03 02:47:46,103 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 842 transitions. Word has length 62 [2022-11-03 02:47:46,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:46,104 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 842 transitions. [2022-11-03 02:47:46,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 9 states have call successors, (17), 6 states have call predecessors, (17), 13 states have return successors, (18), 12 states have call predecessors, (18), 9 states have call successors, (18) [2022-11-03 02:47:46,105 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 842 transitions. [2022-11-03 02:47:46,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-03 02:47:46,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:46,108 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 02:47:46,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:46,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:46,331 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:46,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:46,332 INFO L85 PathProgramCache]: Analyzing trace with hash 452822030, now seen corresponding path program 1 times [2022-11-03 02:47:46,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:46,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018057182] [2022-11-03 02:47:46,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:46,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:46,921 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 02:47:46,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:46,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018057182] [2022-11-03 02:47:46,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018057182] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:47:46,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111341370] [2022-11-03 02:47:46,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:46,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:46,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:46,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:47:46,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:47:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:47,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 02:47:47,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:47:47,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:47,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111341370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:47,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:47:47,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2022-11-03 02:47:47,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135069644] [2022-11-03 02:47:47,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:47,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:47:47,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:47,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:47:47,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:47:47,125 INFO L87 Difference]: Start difference. First operand 694 states and 842 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:47:47,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:47,328 INFO L93 Difference]: Finished difference Result 1189 states and 1486 transitions. [2022-11-03 02:47:47,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:47:47,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2022-11-03 02:47:47,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:47,332 INFO L225 Difference]: With dead ends: 1189 [2022-11-03 02:47:47,333 INFO L226 Difference]: Without dead ends: 616 [2022-11-03 02:47:47,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:47:47,336 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 39 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:47,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 175 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:47:47,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-03 02:47:47,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 595. [2022-11-03 02:47:47,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 410 states have (on average 1.2170731707317073) internal successors, (499), 442 states have internal predecessors, (499), 92 states have call successors, (92), 83 states have call predecessors, (92), 92 states have return successors, (117), 96 states have call predecessors, (117), 92 states have call successors, (117) [2022-11-03 02:47:47,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 708 transitions. [2022-11-03 02:47:47,407 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 708 transitions. Word has length 68 [2022-11-03 02:47:47,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:47,410 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 708 transitions. [2022-11-03 02:47:47,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-03 02:47:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 708 transitions. [2022-11-03 02:47:47,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 02:47:47,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:47,414 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:47,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:47,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:47,627 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:47,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:47,628 INFO L85 PathProgramCache]: Analyzing trace with hash -375909483, now seen corresponding path program 1 times [2022-11-03 02:47:47,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:47,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487352928] [2022-11-03 02:47:47,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:47,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:47:48,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:48,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487352928] [2022-11-03 02:47:48,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487352928] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:47:48,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342842078] [2022-11-03 02:47:48,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:48,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:48,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:48,415 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:47:48,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:47:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:48,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:47:48,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-03 02:47:48,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:47:48,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342842078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:48,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:47:48,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-11-03 02:47:48,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849824896] [2022-11-03 02:47:48,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:48,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:47:48,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:48,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:47:48,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:47:48,869 INFO L87 Difference]: Start difference. First operand 595 states and 708 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-03 02:47:49,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:49,439 INFO L93 Difference]: Finished difference Result 1407 states and 1703 transitions. [2022-11-03 02:47:49,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 02:47:49,440 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 91 [2022-11-03 02:47:49,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:49,445 INFO L225 Difference]: With dead ends: 1407 [2022-11-03 02:47:49,445 INFO L226 Difference]: Without dead ends: 869 [2022-11-03 02:47:49,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:47:49,448 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 126 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:49,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 245 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:47:49,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-11-03 02:47:49,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 809. [2022-11-03 02:47:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 575 states have (on average 1.2243478260869565) internal successors, (704), 608 states have internal predecessors, (704), 118 states have call successors, (118), 116 states have call predecessors, (118), 115 states have return successors, (143), 115 states have call predecessors, (143), 118 states have call successors, (143) [2022-11-03 02:47:49,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 965 transitions. [2022-11-03 02:47:49,543 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 965 transitions. Word has length 91 [2022-11-03 02:47:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:49,544 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 965 transitions. [2022-11-03 02:47:49,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-03 02:47:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 965 transitions. [2022-11-03 02:47:49,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-03 02:47:49,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:49,547 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:49,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:47:49,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:49,763 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:47:49,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:49,764 INFO L85 PathProgramCache]: Analyzing trace with hash 263831655, now seen corresponding path program 1 times [2022-11-03 02:47:49,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:49,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779746749] [2022-11-03 02:47:49,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:49,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:51,088 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 14 proven. 45 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 02:47:51,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:51,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779746749] [2022-11-03 02:47:51,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779746749] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:47:51,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627284728] [2022-11-03 02:47:51,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:51,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:47:51,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:47:51,090 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:47:51,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:47:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:51,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 02:47:51,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:47:51,877 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 41 proven. 26 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:47:51,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:47:52,797 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 02:47:52,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627284728] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:47:52,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2034533621] [2022-11-03 02:47:52,804 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-03 02:47:52,804 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:47:52,805 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:47:52,805 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:47:52,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:47:57,022 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 44 for LOIs [2022-11-03 02:47:57,036 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-03 02:47:57,362 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 60 for LOIs [2022-11-03 02:47:57,858 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 40 for LOIs [2022-11-03 02:47:57,864 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 26 for LOIs [2022-11-03 02:47:57,867 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 36 for LOIs [2022-11-03 02:47:57,870 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 32 for LOIs [2022-11-03 02:47:57,873 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:48:05,596 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16334#(and (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1|) (= ~head~0.offset 0) (<= |timeShift_isPumpRunning_#res#1| 2147483647) (<= |#NULL.offset| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~11#1|) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (<= 0 |old(~methAndRunningLastTime~0)|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~11#1|) (<= 0 ~head~0.base) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 1) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| ~methaneLevelCritical~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 0)) (<= ~head~0.base 0) (<= 0 (+ |timeShift_isPumpRunning_#res#1| 2147483648)) (<= 0 |#NULL.offset|) (not (= ~methAndRunningLastTime~0 0)) (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1|) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 02:48:05,596 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:48:05,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:48:05,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 45 [2022-11-03 02:48:05,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085858062] [2022-11-03 02:48:05,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:48:05,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-03 02:48:05,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:05,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-03 02:48:05,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=638, Invalid=5842, Unknown=0, NotChecked=0, Total=6480 [2022-11-03 02:48:05,601 INFO L87 Difference]: Start difference. First operand 809 states and 965 transitions. Second operand has 45 states, 39 states have (on average 4.051282051282051) internal successors, (158), 37 states have internal predecessors, (158), 21 states have call successors, (35), 15 states have call predecessors, (35), 17 states have return successors, (34), 17 states have call predecessors, (34), 20 states have call successors, (34) [2022-11-03 02:48:54,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:54,960 INFO L93 Difference]: Finished difference Result 12403 states and 18431 transitions. [2022-11-03 02:48:54,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 466 states. [2022-11-03 02:48:54,961 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 39 states have (on average 4.051282051282051) internal successors, (158), 37 states have internal predecessors, (158), 21 states have call successors, (35), 15 states have call predecessors, (35), 17 states have return successors, (34), 17 states have call predecessors, (34), 20 states have call successors, (34) Word has length 94 [2022-11-03 02:48:54,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:55,042 INFO L225 Difference]: With dead ends: 12403 [2022-11-03 02:48:55,042 INFO L226 Difference]: Without dead ends: 11667 [2022-11-03 02:48:55,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 251 SyntacticMatches, 11 SemanticMatches, 538 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129925 ImplicationChecksByTransitivity, 34.2s TimeCoverageRelationStatistics Valid=22600, Invalid=268460, Unknown=0, NotChecked=0, Total=291060 [2022-11-03 02:48:55,089 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 4520 mSDsluCounter, 12100 mSDsCounter, 0 mSdLazyCounter, 29406 mSolverCounterSat, 6614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 10300 SdHoareTripleChecker+Invalid, 36020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6614 IncrementalHoareTripleChecker+Valid, 29406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:55,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 10300 Invalid, 36020 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6614 Valid, 29406 Invalid, 0 Unknown, 0 Unchecked, 20.2s Time] [2022-11-03 02:48:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11667 states. [2022-11-03 02:48:55,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11667 to 3316. [2022-11-03 02:48:55,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 2395 states have (on average 1.2417536534446765) internal successors, (2974), 2516 states have internal predecessors, (2974), 484 states have call successors, (484), 445 states have call predecessors, (484), 436 states have return successors, (586), 457 states have call predecessors, (586), 484 states have call successors, (586) [2022-11-03 02:48:55,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4044 transitions. [2022-11-03 02:48:56,001 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4044 transitions. Word has length 94 [2022-11-03 02:48:56,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:56,002 INFO L495 AbstractCegarLoop]: Abstraction has 3316 states and 4044 transitions. [2022-11-03 02:48:56,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 39 states have (on average 4.051282051282051) internal successors, (158), 37 states have internal predecessors, (158), 21 states have call successors, (35), 15 states have call predecessors, (35), 17 states have return successors, (34), 17 states have call predecessors, (34), 20 states have call successors, (34) [2022-11-03 02:48:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4044 transitions. [2022-11-03 02:48:56,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-03 02:48:56,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:56,014 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:56,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:48:56,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 02:48:56,227 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:56,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:56,228 INFO L85 PathProgramCache]: Analyzing trace with hash -89944292, now seen corresponding path program 1 times [2022-11-03 02:48:56,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:56,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350744770] [2022-11-03 02:48:56,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:56,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-03 02:48:56,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:56,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350744770] [2022-11-03 02:48:56,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350744770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:56,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:56,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:48:56,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890108223] [2022-11-03 02:48:56,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:56,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:48:56,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:56,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:48:56,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:48:56,417 INFO L87 Difference]: Start difference. First operand 3316 states and 4044 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:48:57,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:57,070 INFO L93 Difference]: Finished difference Result 3476 states and 4278 transitions. [2022-11-03 02:48:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:48:57,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 125 [2022-11-03 02:48:57,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:57,095 INFO L225 Difference]: With dead ends: 3476 [2022-11-03 02:48:57,095 INFO L226 Difference]: Without dead ends: 3462 [2022-11-03 02:48:57,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:48:57,099 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 50 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:57,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 155 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:48:57,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2022-11-03 02:48:57,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 3304. [2022-11-03 02:48:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3304 states, 2387 states have (on average 1.2421449518223713) internal successors, (2965), 2508 states have internal predecessors, (2965), 482 states have call successors, (482), 443 states have call predecessors, (482), 434 states have return successors, (584), 455 states have call predecessors, (584), 482 states have call successors, (584) [2022-11-03 02:48:57,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3304 states to 3304 states and 4031 transitions. [2022-11-03 02:48:57,873 INFO L78 Accepts]: Start accepts. Automaton has 3304 states and 4031 transitions. Word has length 125 [2022-11-03 02:48:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:57,875 INFO L495 AbstractCegarLoop]: Abstraction has 3304 states and 4031 transitions. [2022-11-03 02:48:57,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 02:48:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 3304 states and 4031 transitions. [2022-11-03 02:48:57,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-03 02:48:57,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:57,884 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2022-11-03 02:48:57,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:48:57,885 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:48:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:57,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1501470442, now seen corresponding path program 1 times [2022-11-03 02:48:57,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:57,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863530527] [2022-11-03 02:48:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:57,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:58,980 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 51 proven. 47 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-03 02:48:58,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:58,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863530527] [2022-11-03 02:48:58,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863530527] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:48:58,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690921622] [2022-11-03 02:48:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:58,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:48:58,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:48:58,982 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:48:59,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:48:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:59,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-03 02:48:59,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:48:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 76 proven. 58 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 02:48:59,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:49:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 65 proven. 32 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-03 02:49:01,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690921622] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:49:01,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [580693399] [2022-11-03 02:49:01,199 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-03 02:49:01,199 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:49:01,200 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:49:01,200 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:49:01,200 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:49:14,277 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 42 for LOIs [2022-11-03 02:49:14,285 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 36 for LOIs [2022-11-03 02:49:14,662 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 60 for LOIs [2022-11-03 02:49:15,145 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 39 for LOIs [2022-11-03 02:49:15,152 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 27 for LOIs [2022-11-03 02:49:15,157 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 36 for LOIs [2022-11-03 02:49:15,159 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:49:24,324 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '51346#(and (<= 0 |#NULL.base|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1|) (<= 0 ~systemActive~0) (<= |timeShift_isPumpRunning_#res#1| 2147483647) (<= |#NULL.offset| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~11#1|) (<= 0 ~methAndRunningLastTime~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (<= 0 |old(~methAndRunningLastTime~0)|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~11#1|) (<= 0 ~head~0.base) (or (and (= ~head~0.offset 0) (= 1 ~systemActive~0) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| ~methaneLevelCritical~0) (= ~cleanupTimeShifts~0 4)) (and (= ~head~0.offset 0) (= |old(~pumpRunning~0)| 0) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| ~methaneLevelCritical~0) (= ~cleanupTimeShifts~0 4))) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 1) (<= |#NULL.base| 0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 0)) (<= ~head~0.base 0) (<= 0 (+ |timeShift_isPumpRunning_#res#1| 2147483648)) (<= 0 |#NULL.offset|) (not (= ~methAndRunningLastTime~0 0)) (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1|) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1))' at error location [2022-11-03 02:49:24,324 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:49:24,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:49:24,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18, 18] total 43 [2022-11-03 02:49:24,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040564386] [2022-11-03 02:49:24,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:49:24,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-03 02:49:24,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:24,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-03 02:49:24,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=5810, Unknown=0, NotChecked=0, Total=6480 [2022-11-03 02:49:24,327 INFO L87 Difference]: Start difference. First operand 3304 states and 4031 transitions. Second operand has 43 states, 38 states have (on average 4.342105263157895) internal successors, (165), 33 states have internal predecessors, (165), 20 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 16 states have call predecessors, (38), 20 states have call successors, (38) [2022-11-03 02:49:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:30,538 INFO L93 Difference]: Finished difference Result 10082 states and 12406 transitions. [2022-11-03 02:49:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-03 02:49:30,539 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 38 states have (on average 4.342105263157895) internal successors, (165), 33 states have internal predecessors, (165), 20 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 16 states have call predecessors, (38), 20 states have call successors, (38) Word has length 127 [2022-11-03 02:49:30,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:30,593 INFO L225 Difference]: With dead ends: 10082 [2022-11-03 02:49:30,593 INFO L226 Difference]: Without dead ends: 6953 [2022-11-03 02:49:30,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 327 SyntacticMatches, 8 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7072 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=2162, Invalid=15394, Unknown=0, NotChecked=0, Total=17556 [2022-11-03 02:49:30,608 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 2488 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 1721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 4103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1721 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:30,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2497 Valid, 1393 Invalid, 4103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1721 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-03 02:49:30,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6953 states. [2022-11-03 02:49:31,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6953 to 5635. [2022-11-03 02:49:31,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5635 states, 4055 states have (on average 1.2411837237977805) internal successors, (5033), 4278 states have internal predecessors, (5033), 829 states have call successors, (829), 747 states have call predecessors, (829), 750 states have return successors, (998), 782 states have call predecessors, (998), 829 states have call successors, (998) [2022-11-03 02:49:31,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5635 states to 5635 states and 6860 transitions. [2022-11-03 02:49:31,767 INFO L78 Accepts]: Start accepts. Automaton has 5635 states and 6860 transitions. Word has length 127 [2022-11-03 02:49:31,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:31,768 INFO L495 AbstractCegarLoop]: Abstraction has 5635 states and 6860 transitions. [2022-11-03 02:49:31,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 38 states have (on average 4.342105263157895) internal successors, (165), 33 states have internal predecessors, (165), 20 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (38), 16 states have call predecessors, (38), 20 states have call successors, (38) [2022-11-03 02:49:31,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5635 states and 6860 transitions. [2022-11-03 02:49:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-03 02:49:31,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:49:31,787 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 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] [2022-11-03 02:49:31,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-03 02:49:32,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 02:49:32,015 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:49:32,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:49:32,016 INFO L85 PathProgramCache]: Analyzing trace with hash 66488233, now seen corresponding path program 2 times [2022-11-03 02:49:32,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:49:32,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812219490] [2022-11-03 02:49:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:49:32,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:49:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:49:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 91 proven. 88 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 02:49:33,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:49:33,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812219490] [2022-11-03 02:49:33,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812219490] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:49:33,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492067985] [2022-11-03 02:49:33,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:49:33,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:49:33,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:49:33,375 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:49:33,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:49:33,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:49:33,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:49:33,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 02:49:33,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:49:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 187 proven. 13 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-03 02:49:33,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:49:34,479 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 133 proven. 14 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-03 02:49:34,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492067985] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:49:34,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2046426703] [2022-11-03 02:49:34,483 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2022-11-03 02:49:34,484 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:49:34,484 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:49:34,485 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:49:34,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:49:38,506 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 44 for LOIs [2022-11-03 02:49:38,513 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-03 02:49:38,801 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 60 for LOIs [2022-11-03 02:49:39,125 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 50 for LOIs [2022-11-03 02:49:39,133 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 26 for LOIs [2022-11-03 02:49:39,136 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 36 for LOIs [2022-11-03 02:49:39,138 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 32 for LOIs [2022-11-03 02:49:39,141 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:49:46,922 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '75777#(and (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1|) (= ~head~0.offset 0) (<= |timeShift_isPumpRunning_#res#1| 2147483647) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~11#1|) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (<= 0 |old(~methAndRunningLastTime~0)|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~11#1|) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 1) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| ~methaneLevelCritical~0) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 0)) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 (+ |timeShift_isPumpRunning_#res#1| 2147483648)) (not (= ~methAndRunningLastTime~0 0)) (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1|) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 02:49:46,922 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:49:46,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:49:46,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 9, 9] total 31 [2022-11-03 02:49:46,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469637394] [2022-11-03 02:49:46,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:49:46,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-03 02:49:46,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:49:46,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-03 02:49:46,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=4016, Unknown=0, NotChecked=0, Total=4422 [2022-11-03 02:49:46,926 INFO L87 Difference]: Start difference. First operand 5635 states and 6860 transitions. Second operand has 31 states, 29 states have (on average 5.482758620689655) internal successors, (159), 26 states have internal predecessors, (159), 16 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 12 states have call predecessors, (40), 15 states have call successors, (40) [2022-11-03 02:49:49,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:49:49,968 INFO L93 Difference]: Finished difference Result 8670 states and 10570 transitions. [2022-11-03 02:49:49,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-03 02:49:49,969 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 5.482758620689655) internal successors, (159), 26 states have internal predecessors, (159), 16 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 12 states have call predecessors, (40), 15 states have call successors, (40) Word has length 153 [2022-11-03 02:49:49,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:49:49,971 INFO L225 Difference]: With dead ends: 8670 [2022-11-03 02:49:49,971 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:49:49,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 412 SyntacticMatches, 15 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4548 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=1043, Invalid=9057, Unknown=0, NotChecked=0, Total=10100 [2022-11-03 02:49:49,997 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 793 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:49:49,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 991 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 02:49:49,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:49:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:49:49,998 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) [2022-11-03 02:49:49,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:49:50,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2022-11-03 02:49:50,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:49:50,000 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:49:50,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 5.482758620689655) internal successors, (159), 26 states have internal predecessors, (159), 16 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 12 states have call predecessors, (40), 15 states have call successors, (40) [2022-11-03 02:49:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:49:50,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:49:50,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:49:50,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:49:50,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:49:50,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:50:00,551 WARN L234 SmtUtils]: Spent 10.11s on a formula simplification. DAG size of input: 950 DAG size of output: 848 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:51:12,938 WARN L234 SmtUtils]: Spent 1.08m on a formula simplification. DAG size of input: 661 DAG size of output: 640 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:51:46,225 WARN L234 SmtUtils]: Spent 33.28s on a formula simplification. DAG size of input: 1309 DAG size of output: 1135 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:51:55,837 WARN L234 SmtUtils]: Spent 9.60s on a formula simplification. DAG size of input: 687 DAG size of output: 639 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:52:03,596 WARN L234 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 646 DAG size of output: 574 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-03 02:52:45,310 WARN L234 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 1135 DAG size of output: 28 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:52:58,026 WARN L234 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 689 DAG size of output: 84 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 02:53:00,582 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 862 869) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (= |old(~pumpRunning~0)| 0)) [2022-11-03 02:53:00,582 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 862 869) no Hoare annotation was computed. [2022-11-03 02:53:00,583 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 777 783) no Hoare annotation was computed. [2022-11-03 02:53:00,583 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 777 783) the Hoare annotation is: true [2022-11-03 02:53:00,583 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 84 95) the Hoare annotation is: (let ((.cse6 (= |old(~methaneLevelCritical~0)| 0)) (.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (< ~waterLevel~0 2)) (.cse5 (not (= 0 ~systemActive~0))) (.cse8 (not (= ~waterLevel~0 1))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse7 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or (and .cse6 (not (= ~pumpRunning~0 1))) .cse7 .cse1 (not (<= 2 ~waterLevel~0)) .cse2 .cse4) (or (not .cse6) .cse0 (= ~methaneLevelCritical~0 0) .cse7 .cse2 .cse3 .cse4) (or .cse8 .cse0 .cse1 .cse4 .cse5) (or .cse8 .cse0 .cse7 .cse1 .cse4))) [2022-11-03 02:53:00,584 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2022-11-03 02:53:00,584 INFO L899 garLoopResultBuilder]: For program point L1010(lines 1010 1016) no Hoare annotation was computed. [2022-11-03 02:53:00,584 INFO L895 garLoopResultBuilder]: At program point L825(line 825) the Hoare annotation is: (let ((.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= 0 ~systemActive~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse5 .cse2 .cse6) (or .cse0 .cse3 .cse1 .cse4))) [2022-11-03 02:53:00,585 INFO L895 garLoopResultBuilder]: At program point L821(line 821) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse6 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2 .cse4) (or .cse5 .cse6 (let ((.cse7 (+ ~waterLevel~0 1))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)) (= |timeShift_processEnvironment_~tmp~6#1| 1) (<= .cse7 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| .cse7))) .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse6))) [2022-11-03 02:53:00,585 INFO L895 garLoopResultBuilder]: At program point L1003(line 1003) the Hoare annotation is: (let ((.cse13 (= ~methaneLevelCritical~0 0)) (.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse6 (= ~waterLevel~0 1)) (.cse12 (not (= |old(~waterLevel~0)| 1))) (.cse10 (not (= 0 ~systemActive~0))) (.cse8 (not .cse2)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse11 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse9 (not .cse13)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 (= |timeShift_processEnvironment_~tmp~6#1| 1) .cse6) .cse7) (or .cse8 .cse0 .cse5 .cse9 .cse3 .cse10 .cse7) (or .cse8 (and .cse4 .cse11) .cse3 .cse10 .cse7) (or .cse8 (and .cse4 .cse5 .cse6) .cse0 .cse12 .cse1) (or .cse8 .cse12 (and .cse4 .cse6) .cse10) (or .cse8 .cse0 .cse5 .cse12 .cse9 .cse10) (or .cse8 .cse0 .cse1 (and .cse5 .cse11 (or (and .cse4 .cse9) (and .cse13 (= ~pumpRunning~0 1)))) .cse3 .cse7)))) [2022-11-03 02:53:00,585 INFO L899 garLoopResultBuilder]: For program point L1003-1(line 1003) no Hoare annotation was computed. [2022-11-03 02:53:00,586 INFO L895 garLoopResultBuilder]: At program point L165(line 165) the Hoare annotation is: (let ((.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= 0 ~systemActive~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse5 .cse2 .cse6) (or .cse0 .cse3 .cse1 .cse4))) [2022-11-03 02:53:00,586 INFO L895 garLoopResultBuilder]: At program point L830(line 830) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse6 (not (= 1 ~systemActive~0))) (.cse7 (= ~methAndRunningLastTime~0 0)) (.cse8 (or (= ~pumpRunning~0 0) (not (< 0 ~waterLevel~0))))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2 .cse4) (or .cse5 .cse6 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7 .cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4) (or .cse0 .cse5 .cse1 .cse6 (and .cse7 .cse8 (= ~waterLevel~0 1))))) [2022-11-03 02:53:00,586 INFO L895 garLoopResultBuilder]: At program point L830-1(lines 811 835) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse10 (not (= 0 ~systemActive~0))) (.cse6 (= ~waterLevel~0 1)) (.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse8 (not .cse2)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 (= |timeShift_processEnvironment_~tmp~6#1| 1) .cse6) .cse7) (or .cse8 .cse9 .cse10) (or .cse8 .cse3 .cse10 .cse7) (or .cse8 (and .cse4 .cse5 .cse6) .cse0 .cse9 .cse1) (or .cse8 .cse0 .cse1 (and .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse11 (= ~methaneLevelCritical~0 0))) (or (and .cse4 (not .cse11)) (and .cse11 (= ~pumpRunning~0 1))))) .cse3 .cse7)))) [2022-11-03 02:53:00,587 INFO L899 garLoopResultBuilder]: For program point L764-1(lines 764 770) no Hoare annotation was computed. [2022-11-03 02:53:00,587 INFO L899 garLoopResultBuilder]: For program point L757-1(lines 756 775) no Hoare annotation was computed. [2022-11-03 02:53:00,587 INFO L899 garLoopResultBuilder]: For program point L819(lines 819 827) no Hoare annotation was computed. [2022-11-03 02:53:00,587 INFO L899 garLoopResultBuilder]: For program point L1009(lines 1009 1019) no Hoare annotation was computed. [2022-11-03 02:53:00,588 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 753 776) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse9 (= ~waterLevel~0 1)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (not (= 1 ~systemActive~0))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse10 (not (= |old(~waterLevel~0)| 1))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse0 (and .cse7 .cse8) .cse4 .cse5 .cse6) (or .cse0 (and .cse7 .cse2 .cse9) .cse1 .cse10 .cse11) (or .cse0 .cse10 (and .cse7 .cse9) .cse5) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse8) .cse1 .cse11 .cse4 .cse6) (or .cse0 .cse1 .cse2 .cse10 .cse3 .cse5))) [2022-11-03 02:53:00,588 INFO L895 garLoopResultBuilder]: At program point L815(lines 815 832) the Hoare annotation is: (let ((.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (= 0 ~systemActive~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse4 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse8 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (or .cse3 (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (or (not .cse3) (<= |old(~waterLevel~0)| ~waterLevel~0)) (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse4)) .cse5 .cse6) (or .cse7 .cse8 .cse9) (or .cse7 .cse5 .cse9 .cse6) (or .cse7 (and .cse3 .cse2 .cse4) .cse0 .cse8 .cse1))) [2022-11-03 02:53:00,588 INFO L895 garLoopResultBuilder]: At program point L1005(lines 1005 1022) the Hoare annotation is: (let ((.cse19 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse18 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 0)) (.cse14 (= ~methaneLevelCritical~0 0))) (let ((.cse16 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse10 (not .cse14)) (.cse12 (and .cse5 .cse18)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse17 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse6 (= ~waterLevel~0 1)) (.cse8 (not .cse2)) (.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse13 (and .cse14 .cse19)) (.cse15 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| ~methaneLevelCritical~0)) (.cse11 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 (= |timeShift_processEnvironment_~tmp~6#1| 1) .cse6) .cse7) (or .cse8 .cse0 .cse5 .cse9 .cse1 .cse10) (or .cse8 .cse0 .cse10 .cse3 .cse11 .cse12 .cse7) (or .cse4 .cse0 .cse1 .cse13 .cse3 .cse7) (or .cse8 .cse14 .cse15 .cse3 .cse11 .cse7) (or .cse8 (and .cse4 .cse16) .cse3 .cse11 .cse7) (or .cse8 .cse0 .cse1 (and .cse5 (or .cse10 (= ~pumpRunning~0 1)) .cse15 .cse16) .cse3 .cse7) (or .cse8 .cse9 (and .cse17 .cse4 .cse6) .cse11) (or .cse0 .cse1 .cse18 .cse10 .cse19 (not (= |old(~waterLevel~0)| 2))) (or .cse8 .cse0 .cse9 .cse10 .cse11 .cse12) (or .cse8 .cse0 .cse9 .cse1 (and .cse17 .cse4 .cse15 .cse6)) (or .cse8 .cse9 .cse13 .cse15 .cse11)))) [2022-11-03 02:53:00,589 INFO L895 garLoopResultBuilder]: At program point L1005-1(lines 997 1025) the Hoare annotation is: (let ((.cse20 (= ~methaneLevelCritical~0 0)) (.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse8 (not .cse2)) (.cse10 (not .cse20)) (.cse21 (not (= |old(~pumpRunning~0)| 1)))) (let ((.cse13 (and .cse20 .cse21)) (.cse9 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| 0)) (.cse6 (= ~waterLevel~0 1)) (.cse12 (not (= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse16 (< 0 (+ |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 1))) (.cse14 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~10#1| ~methaneLevelCritical~0)) (.cse17 (<= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1| 0)) (.cse15 (= ~pumpRunning~0 |timeShift___utac_acc__Specification2_spec__2_~tmp___0~3#1|)) (.cse18 (and (or .cse8 .cse20) (or .cse10 .cse21))) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse19 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse11 (not (= 0 ~systemActive~0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 (= |timeShift_processEnvironment_~tmp~6#1| 1) .cse6) .cse7) (or .cse8 .cse0 .cse9 .cse10 .cse3 .cse11 .cse7) (or .cse8 .cse0 .cse12 .cse1 .cse13 (and .cse4 .cse5 .cse14 .cse6 .cse15)) (or .cse8 .cse0 .cse12 .cse9 .cse10 .cse11) (or .cse8 .cse12 (and .cse16 .cse14 .cse17) .cse13 .cse11) (or .cse0 .cse1 .cse9 .cse18 .cse10 (not (= |old(~waterLevel~0)| 2))) (or .cse8 .cse0 .cse12 .cse1 .cse10 (and .cse4 .cse5 .cse9 .cse6)) (or .cse8 .cse0 (and .cse5 .cse14 .cse19 (= ~pumpRunning~0 1)) .cse1 .cse10 .cse3 .cse7) (or .cse8 .cse20 (and .cse14 .cse15) .cse3 .cse11 .cse7) (or .cse8 .cse12 (and .cse4 .cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse11) (or .cse8 .cse0 .cse1 (and .cse5 .cse16 .cse14 .cse19 .cse17 .cse15) .cse18 .cse3 .cse7) (or .cse8 (and .cse4 .cse5 .cse19) .cse3 .cse11 .cse7))))) [2022-11-03 02:53:00,589 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 753 776) no Hoare annotation was computed. [2022-11-03 02:53:00,590 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2022-11-03 02:53:00,590 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2022-11-03 02:53:00,590 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 172 201) no Hoare annotation was computed. [2022-11-03 02:53:00,590 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 172 201) the Hoare annotation is: true [2022-11-03 02:53:00,590 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2022-11-03 02:53:00,590 INFO L902 garLoopResultBuilder]: At program point L186-1(lines 186 190) the Hoare annotation is: true [2022-11-03 02:53:00,591 INFO L902 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: true [2022-11-03 02:53:00,591 INFO L902 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: true [2022-11-03 02:53:00,591 INFO L899 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2022-11-03 02:53:00,591 INFO L902 garLoopResultBuilder]: At program point L197(lines 172 201) the Hoare annotation is: true [2022-11-03 02:53:00,591 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 96 104) the Hoare annotation is: true [2022-11-03 02:53:00,592 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 96 104) no Hoare annotation was computed. [2022-11-03 02:53:00,592 INFO L902 garLoopResultBuilder]: At program point L374(lines 311 378) the Hoare annotation is: true [2022-11-03 02:53:00,592 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 347) no Hoare annotation was computed. [2022-11-03 02:53:00,592 INFO L899 garLoopResultBuilder]: For program point L341-1(lines 341 347) no Hoare annotation was computed. [2022-11-03 02:53:00,592 INFO L895 garLoopResultBuilder]: At program point L333(line 333) the Hoare annotation is: (let ((.cse10 (= ~methaneLevelCritical~0 0))) (let ((.cse4 (not .cse10)) (.cse9 (= 1 ~systemActive~0)) (.cse8 (<= 2 ~waterLevel~0)) (.cse0 (<= ~waterLevel~0 2)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse5 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= 0 ~systemActive~0)) (.cse7 (= ~waterLevel~0 1))) (or (and .cse0 (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse2 .cse3 .cse8 .cse4 .cse5 .cse6))) (and .cse2 .cse3 .cse8 .cse9 .cse5 .cse0 (or (and .cse1 .cse4) (and .cse10 (= ~pumpRunning~0 1)))) (and .cse1 .cse2 .cse3 .cse9 .cse5 .cse7) (and .cse1 .cse2 .cse10 .cse3 .cse8 .cse5 .cse0 .cse6) (and .cse1 .cse2 .cse10 .cse3 .cse5 .cse6 .cse7)))) [2022-11-03 02:53:00,593 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 02:53:00,593 INFO L895 garLoopResultBuilder]: At program point L371(lines 320 372) the Hoare annotation is: false [2022-11-03 02:53:00,593 INFO L895 garLoopResultBuilder]: At program point L970(line 970) the Hoare annotation is: (and (not (= ~pumpRunning~0 0)) (= |ULTIMATE.start_main_~tmp~0#1| 1) (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= ~waterLevel~0 2)) [2022-11-03 02:53:00,593 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 365) no Hoare annotation was computed. [2022-11-03 02:53:00,594 INFO L895 garLoopResultBuilder]: At program point L359-2(lines 351 366) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse3 (= 0 ~systemActive~0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse7 (<= 2 ~waterLevel~0)) (.cse6 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse8 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse6 .cse2 .cse4) (and .cse0 .cse1 .cse7 .cse2 .cse8 .cse3) (and .cse5 .cse1 .cse7 .cse6 .cse2 .cse8))) [2022-11-03 02:53:00,594 INFO L895 garLoopResultBuilder]: At program point L260(lines 260 267) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-03 02:53:00,594 INFO L899 garLoopResultBuilder]: For program point L322(lines 321 370) no Hoare annotation was computed. [2022-11-03 02:53:00,594 INFO L902 garLoopResultBuilder]: At program point L260-2(lines 260 267) the Hoare annotation is: true [2022-11-03 02:53:00,594 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:53:00,595 INFO L895 garLoopResultBuilder]: At program point L351(lines 351 366) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse8 (= 0 ~systemActive~0)) (.cse5 (= ~waterLevel~0 1)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse6 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse6 .cse4 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse4 .cse8 .cse5) (and .cse1 .cse2 .cse6 .cse3 .cse4 .cse7))) [2022-11-03 02:53:00,595 INFO L895 garLoopResultBuilder]: At program point L343(line 343) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse3 (<= 2 ~waterLevel~0)) (.cse5 (<= ~waterLevel~0 2)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse7 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse9 (= ~waterLevel~0 1)) (.cse8 (not .cse6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 (or (not (= ~methaneLevelCritical~0 0)) (= ~pumpRunning~0 1)) .cse3 .cse7 .cse4 .cse5 .cse8) (and .cse0 .cse1 .cse2 .cse4 .cse6 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse7 .cse4 .cse5 .cse8) (and .cse0 .cse1 .cse2 .cse7 .cse4 .cse9 .cse8)))) [2022-11-03 02:53:00,595 INFO L895 garLoopResultBuilder]: At program point L368(lines 321 370) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse5 (<= ~waterLevel~0 2)) (.cse6 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse9 (= 0 ~systemActive~0)) (.cse8 (= ~waterLevel~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (let ((.cse7 (= ~methaneLevelCritical~0 0))) (or (and .cse6 (not .cse7)) (and .cse7 (= ~pumpRunning~0 1))))) (and .cse6 .cse0 .cse1 .cse3 .cse4 .cse8) (and .cse6 .cse0 .cse1 .cse2 .cse4 .cse5 .cse9) (and .cse6 .cse0 .cse1 .cse4 .cse9 .cse8))) [2022-11-03 02:53:00,596 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 337) no Hoare annotation was computed. [2022-11-03 02:53:00,596 INFO L899 garLoopResultBuilder]: For program point L331-1(lines 331 337) no Hoare annotation was computed. [2022-11-03 02:53:00,596 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 974) no Hoare annotation was computed. [2022-11-03 02:53:00,596 INFO L895 garLoopResultBuilder]: At program point L968-1(lines 968 974) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse1 (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse2 (= ~methAndRunningLastTime~0 0) .cse3 .cse4) (and .cse2 .cse3 .cse4 (not .cse0)))))) (or (and (or (and .cse0 .cse1) (and (= 1 ~systemActive~0) .cse1)) (= ~waterLevel~0 1)) (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2) .cse1)))) [2022-11-03 02:53:00,596 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 785 809) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~waterLevel~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-03 02:53:00,597 INFO L895 garLoopResultBuilder]: At program point L799(line 799) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (not .cse1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~waterLevel~0 0)) .cse1 .cse2) (or .cse3 .cse0 (< ~waterLevel~0 2) .cse2) (or .cse3 .cse0 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0)) .cse2)))) [2022-11-03 02:53:00,597 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 801) no Hoare annotation was computed. [2022-11-03 02:53:00,597 INFO L895 garLoopResultBuilder]: At program point L789(lines 789 806) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~waterLevel~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-03 02:53:00,597 INFO L895 garLoopResultBuilder]: At program point L804(line 804) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~waterLevel~0 0)) .cse1))) [2022-11-03 02:53:00,598 INFO L899 garLoopResultBuilder]: For program point L804-1(lines 785 809) no Hoare annotation was computed. [2022-11-03 02:53:00,598 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 785 809) no Hoare annotation was computed. [2022-11-03 02:53:00,598 INFO L895 garLoopResultBuilder]: At program point L875(line 875) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~waterLevel~0 0)) .cse1) (or (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 1)) (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-03 02:53:00,598 INFO L895 garLoopResultBuilder]: At program point L875-1(line 875) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~waterLevel~0 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#t~ret41#1| ~methaneLevelCritical~0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 1)) .cse0 .cse1))) [2022-11-03 02:53:00,599 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2022-11-03 02:53:00,599 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 72 83) the Hoare annotation is: (let ((.cse7 (= ~methaneLevelCritical~0 0))) (let ((.cse3 (= ~waterLevel~0 1)) (.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not (= 1 ~systemActive~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse5 (not .cse7)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (= ~methAndRunningLastTime~0 0))) (.cse6 (not (= 0 ~systemActive~0))) (.cse10 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse3 .cse4 .cse6) (or .cse0 .cse7 .cse2 (not (= |old(~waterLevel~0)| 2)) .cse8 .cse4) (or .cse8 .cse9 (and (or .cse0 .cse1 .cse7 .cse4) (or .cse0 .cse7 (< |old(~waterLevel~0)| 2) .cse4)) .cse6) (or .cse2 .cse5 (not (= ~pumpRunning~0 1)) .cse8 .cse9 .cse4 .cse10) (or .cse0 .cse5 .cse8 .cse9 .cse4 .cse6 .cse10)))) [2022-11-03 02:53:00,603 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:53:00,606 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:53:00,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:53:00 BoogieIcfgContainer [2022-11-03 02:53:00,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:53:00,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:53:00,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:53:00,689 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:53:00,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:23" (3/4) ... [2022-11-03 02:53:00,693 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:53:00,711 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 02:53:00,712 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 02:53:00,712 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 02:53:00,712 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 02:53:00,712 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 02:53:00,712 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 02:53:00,713 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 02:53:00,713 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 02:53:00,722 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 79 nodes and edges [2022-11-03 02:53:00,725 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-03 02:53:00,726 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 02:53:00,726 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:53:00,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:53:00,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:53:00,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:53:00,760 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || !(0 == systemActive))) && ((((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) [2022-11-03 02:53:00,761 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && (pumpRunning == 0 || waterLevel + 1 <= \old(waterLevel))) && (!(pumpRunning == 0) || \old(waterLevel) <= waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-03 02:53:00,762 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && waterLevel == 1)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((methAndRunningLastTime == 0 && \old(waterLevel) == waterLevel) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-03 02:53:00,762 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel == 0)) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) [2022-11-03 02:53:00,763 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && waterLevel == 1)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || (methAndRunningLastTime == 0 && tmp == 0)) || !(2 <= \old(waterLevel)))) && (((((pumpRunning == 0 || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || tmp == methaneLevelCritical) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((methAndRunningLastTime == 0 && (!(methaneLevelCritical == 0) || pumpRunning == 1)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel == 1)) || !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) || (methAndRunningLastTime == 0 && tmp == 0))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == methaneLevelCritical) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || tmp == methaneLevelCritical) || !(0 == systemActive)) [2022-11-03 02:53:00,764 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && waterLevel == 1)) || !(2 <= \old(waterLevel))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && waterLevel == 1) && pumpRunning == tmp___0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((0 < tmp___0 + 1 && tmp == methaneLevelCritical) && tmp___0 <= 0)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || tmp == 0) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 0) && waterLevel == 1))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((methAndRunningLastTime == 0 && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || (tmp == methaneLevelCritical && pumpRunning == tmp___0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel)) || !(0 == systemActive))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((((methAndRunningLastTime == 0 && 0 < tmp___0 + 1) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel) && tmp___0 <= 0) && pumpRunning == tmp___0)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) [2022-11-03 02:53:00,764 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(waterLevel == 0)) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 2 <= waterLevel) && aux-isMethaneLevelCritical()-aux == methaneLevelCritical) && tmp == 1)) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) [2022-11-03 02:53:00,765 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-03 02:53:00,826 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:53:00,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:53:00,827 INFO L158 Benchmark]: Toolchain (without parser) took 339026.43ms. Allocated memory was 109.1MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 72.9MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 724.3MB. Max. memory is 16.1GB. [2022-11-03 02:53:00,828 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:53:00,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 868.60ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 76.2MB in the end (delta: -3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:53:00,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.69ms. Allocated memory is still 109.1MB. Free memory was 76.2MB in the beginning and 73.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:53:00,831 INFO L158 Benchmark]: Boogie Preprocessor took 68.26ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 72.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:53:00,831 INFO L158 Benchmark]: RCFGBuilder took 828.62ms. Allocated memory is still 109.1MB. Free memory was 71.8MB in the beginning and 78.1MB in the end (delta: -6.3MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-11-03 02:53:00,832 INFO L158 Benchmark]: TraceAbstraction took 337012.36ms. Allocated memory was 109.1MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 77.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2022-11-03 02:53:00,832 INFO L158 Benchmark]: Witness Printer took 138.34ms. Allocated memory is still 2.3GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:53:00,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 868.60ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 76.2MB in the end (delta: -3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.69ms. Allocated memory is still 109.1MB. Free memory was 76.2MB in the beginning and 73.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.26ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 72.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 828.62ms. Allocated memory is still 109.1MB. Free memory was 71.8MB in the beginning and 78.1MB in the end (delta: -6.3MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * TraceAbstraction took 337012.36ms. Allocated memory was 109.1MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 77.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 138.34ms. Allocated memory is still 2.3GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 165]: 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 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 336.8s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 65.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 190.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9389 SdHoareTripleChecker+Valid, 26.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9343 mSDsluCounter, 15038 SdHoareTripleChecker+Invalid, 22.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16670 mSDsCounter, 9472 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36658 IncrementalHoareTripleChecker+Invalid, 46130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9472 mSolverCounterUnsat, 1634 mSDtfsCounter, 36658 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2286 GetRequests, 1330 SyntacticMatches, 34 SemanticMatches, 922 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145098 ImplicationChecksByTransitivity, 66.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5635occurred in iteration=13, InterpolantAutomatonStates: 679, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 10364 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 8446 PreInvPairs, 9896 NumberOfFragments, 2857 HoareAnnotationTreeSize, 8446 FomulaSimplifications, 371794 FormulaSimplificationTreeSizeReduction, 134.9s HoareSimplificationTime, 38 FomulaSimplificationsInter, 3826861 FormulaSimplificationTreeSizeReductionInter, 54.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 1535 NumberOfCodeBlocks, 1470 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1947 ConstructedInterpolants, 0 QuantifiedInterpolants, 7147 SizeOfPredicates, 63 NumberOfNonLiveVariables, 3172 ConjunctsInSsa, 175 ConjunctsInUnsatCore, 24 InterpolantComputations, 10 PerfectInterpolantSequences, 1496/1864 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: 789]: Loop Invariant Derived loop invariant: (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(waterLevel == 0)) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && 1 == systemActive) && splverifierCounter == 0) && waterLevel == 1) || ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && 0 == systemActive)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel == 1)) || (((((methAndRunningLastTime == 0 && tmp == 1) && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 968]: Loop Invariant Derived loop invariant: (((0 == systemActive && ((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) || (((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)))) || (1 == systemActive && ((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) || (((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive))))) && waterLevel == 1) || ((2 <= waterLevel && waterLevel <= 2) && ((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) || (((pumpRunning == 0 && tmp == 1) && splverifierCounter == 0) && !(0 == systemActive)))) - InvariantResult [Line: 753]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) || !(0 == systemActive))) && ((((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: ((((((((methAndRunningLastTime == 0 && tmp == 1) && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1))) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && 1 == systemActive) && splverifierCounter == 0) && waterLevel == 1)) || ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && 0 == systemActive)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel == 1) - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1005]: Loop Invariant Derived loop invariant: (((((((((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && waterLevel == 1)) || !(2 <= \old(waterLevel))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || (methAndRunningLastTime == 0 && tmp == 0)) || !(2 <= \old(waterLevel)))) && (((((pumpRunning == 0 || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || tmp == methaneLevelCritical) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((methAndRunningLastTime == 0 && (!(methaneLevelCritical == 0) || pumpRunning == 1)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel == 1)) || !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(methaneLevelCritical == 0)) || !(0 == systemActive)) || (methAndRunningLastTime == 0 && tmp == 0))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == methaneLevelCritical) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || tmp == methaneLevelCritical) || !(0 == systemActive)) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive)) && (((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 815]: Loop Invariant Derived loop invariant: ((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && (pumpRunning == 0 || waterLevel + 1 <= \old(waterLevel))) && (!(pumpRunning == 0) || \old(waterLevel) <= waterLevel)) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 997]: Loop Invariant Derived loop invariant: (((((((((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && waterLevel == 1)) || !(2 <= \old(waterLevel))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && waterLevel == 1) && pumpRunning == tmp___0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((0 < tmp___0 + 1 && tmp == methaneLevelCritical) && tmp___0 <= 0)) || (methaneLevelCritical == 0 && !(\old(pumpRunning) == 1))) || !(0 == systemActive))) && (((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || tmp == 0) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) == 2))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 0) && waterLevel == 1))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((methAndRunningLastTime == 0 && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || (tmp == methaneLevelCritical && pumpRunning == tmp___0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel)) || !(0 == systemActive))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((((methAndRunningLastTime == 0 && 0 < tmp___0 + 1) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel) && tmp___0 <= 0) && pumpRunning == tmp___0)) || ((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) && (!(methaneLevelCritical == 0) || !(\old(pumpRunning) == 1)))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(waterLevel == 0)) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 2 <= waterLevel) && aux-isMethaneLevelCritical()-aux == methaneLevelCritical) && tmp == 1)) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 311]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 811]: Loop Invariant Derived loop invariant: ((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == 1) && waterLevel == 1)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((methAndRunningLastTime == 0 && \old(waterLevel) == waterLevel) && ((pumpRunning == 0 && !(methaneLevelCritical == 0)) || (methaneLevelCritical == 0 && pumpRunning == 1)))) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-11-03 02:53:00,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35d15a2e-bee0-4fe8-9818-3c1265a195e2/bin/utaipan-7li7fVZpFI/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