./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.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_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/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_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/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_e24c0878-9880-4d16-a0b2-ce8558ceda55/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 9e826f48819dedbf1a290c3ced69eb835c065ed69febc6d0054f416e73afcb1c --- 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 03:28:37,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:28:37,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:28:37,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:28:37,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:28:37,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:28:37,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:28:37,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:28:37,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:28:37,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:28:37,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:28:37,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:28:37,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:28:37,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:28:37,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:28:37,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:28:37,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:28:37,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:28:37,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:28:37,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:28:37,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:28:37,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:28:37,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:28:37,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:28:37,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:28:37,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:28:37,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:28:37,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:28:37,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:28:37,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:28:37,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:28:37,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:28:37,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:28:37,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:28:37,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:28:37,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:28:37,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:28:37,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:28:37,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:28:37,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:28:37,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:28:37,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:28:37,359 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:28:37,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:28:37,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:28:37,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:28:37,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:28:37,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:28:37,362 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:28:37,362 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:28:37,363 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:28:37,363 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:28:37,364 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:28:37,364 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:28:37,365 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:28:37,365 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:28:37,365 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:28:37,366 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:28:37,366 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:28:37,366 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:28:37,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:28:37,367 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:28:37,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:28:37,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:28:37,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:28:37,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:28:37,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:28:37,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:28:37,371 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:28:37,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:28:37,371 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:28:37,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:28:37,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:28:37,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:28:37,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:28:37,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:28:37,373 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:28:37,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:28:37,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:28:37,374 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:28:37,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:28:37,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:28:37,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:28:37,375 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_e24c0878-9880-4d16-a0b2-ce8558ceda55/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e826f48819dedbf1a290c3ced69eb835c065ed69febc6d0054f416e73afcb1c [2022-11-03 03:28:37,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:28:37,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:28:37,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:28:37,764 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:28:37,765 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:28:37,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2022-11-03 03:28:37,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/data/e3a00ba6d/de6deefe677f48689cc2f48eb6f74241/FLAG449d9d729 [2022-11-03 03:28:38,549 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:28:38,555 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2022-11-03 03:28:38,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/data/e3a00ba6d/de6deefe677f48689cc2f48eb6f74241/FLAG449d9d729 [2022-11-03 03:28:38,818 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/data/e3a00ba6d/de6deefe677f48689cc2f48eb6f74241 [2022-11-03 03:28:38,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:28:38,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:28:38,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:28:38,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:28:38,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:28:38,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:28:38" (1/1) ... [2022-11-03 03:28:38,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f653160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:38, skipping insertion in model container [2022-11-03 03:28:38,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:28:38" (1/1) ... [2022-11-03 03:28:38,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:28:38,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:28:39,240 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_e24c0878-9880-4d16-a0b2-ce8558ceda55/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c[13125,13138] [2022-11-03 03:28:39,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:28:39,306 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:28:39,368 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_e24c0878-9880-4d16-a0b2-ce8558ceda55/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c[13125,13138] [2022-11-03 03:28:39,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:28:39,411 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:28:39,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39 WrapperNode [2022-11-03 03:28:39,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:28:39,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:28:39,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:28:39,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:28:39,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,484 INFO L138 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 291 [2022-11-03 03:28:39,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:28:39,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:28:39,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:28:39,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:28:39,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,513 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:28:39,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:28:39,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:28:39,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:28:39,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (1/1) ... [2022-11-03 03:28:39,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:28:39,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:28:39,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:28:39,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:28:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:28:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 03:28:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 03:28:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 03:28:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 03:28:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 03:28:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 03:28:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 03:28:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 03:28:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 03:28:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 03:28:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-03 03:28:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-03 03:28:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-03 03:28:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-03 03:28:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 03:28:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 03:28:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:28:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 03:28:39,634 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 03:28:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:28:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:28:39,752 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:28:39,755 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:28:40,310 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:28:40,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:28:40,485 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:28:40,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:40 BoogieIcfgContainer [2022-11-03 03:28:40,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:28:40,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:28:40,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:28:40,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:28:40,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:28:38" (1/3) ... [2022-11-03 03:28:40,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f43cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:28:40, skipping insertion in model container [2022-11-03 03:28:40,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:28:39" (2/3) ... [2022-11-03 03:28:40,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f43cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:28:40, skipping insertion in model container [2022-11-03 03:28:40,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:40" (3/3) ... [2022-11-03 03:28:40,506 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2022-11-03 03:28:40,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:28:40,579 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:28:40,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:28:40,690 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;@585b17ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:28:40,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:28:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-03 03:28:40,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 03:28:40,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:40,709 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:40,709 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:40,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash 534369434, now seen corresponding path program 1 times [2022-11-03 03:28:40,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:40,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647563338] [2022-11-03 03:28:40,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:40,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:28:41,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:41,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647563338] [2022-11-03 03:28:41,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647563338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:41,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:41,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:28:41,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28851737] [2022-11-03 03:28:41,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:41,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:28:41,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:41,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:28:41,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:28:41,157 INFO L87 Difference]: Start difference. First operand has 74 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:28:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:41,293 INFO L93 Difference]: Finished difference Result 146 states and 203 transitions. [2022-11-03 03:28:41,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:28:41,297 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-03 03:28:41,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:41,310 INFO L225 Difference]: With dead ends: 146 [2022-11-03 03:28:41,311 INFO L226 Difference]: Without dead ends: 69 [2022-11-03 03:28:41,318 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 03:28:41,322 INFO L413 NwaCegarLoop]: 80 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, 80 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 03:28:41,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:28:41,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-03 03:28:41,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-03 03:28:41,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 43 states have (on average 1.372093023255814) internal successors, (59), 53 states have internal predecessors, (59), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 03:28:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 92 transitions. [2022-11-03 03:28:41,412 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 92 transitions. Word has length 21 [2022-11-03 03:28:41,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:41,413 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 92 transitions. [2022-11-03 03:28:41,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:28:41,415 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions. [2022-11-03 03:28:41,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 03:28:41,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:41,421 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:41,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:28:41,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:41,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:41,423 INFO L85 PathProgramCache]: Analyzing trace with hash 264026590, now seen corresponding path program 1 times [2022-11-03 03:28:41,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:41,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573246880] [2022-11-03 03:28:41,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:41,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:41,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:28:41,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:41,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573246880] [2022-11-03 03:28:41,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573246880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:41,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:41,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:28:41,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678908338] [2022-11-03 03:28:41,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:41,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:28:41,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:41,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:28:41,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:28:41,596 INFO L87 Difference]: Start difference. First operand 69 states and 92 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:28:41,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:41,650 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2022-11-03 03:28:41,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:28:41,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-03 03:28:41,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:41,652 INFO L225 Difference]: With dead ends: 110 [2022-11-03 03:28:41,653 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 03:28:41,654 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 03:28:41,655 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 14 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:41,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:28:41,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 03:28:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-03 03:28:41,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 38 states have (on average 1.394736842105263) internal successors, (53), 48 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 03:28:41,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2022-11-03 03:28:41,666 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 22 [2022-11-03 03:28:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:41,667 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2022-11-03 03:28:41,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:28:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2022-11-03 03:28:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 03:28:41,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:41,669 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:41,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:28:41,669 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:41,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:41,670 INFO L85 PathProgramCache]: Analyzing trace with hash 729428829, now seen corresponding path program 1 times [2022-11-03 03:28:41,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:41,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265658150] [2022-11-03 03:28:41,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:41,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:28:41,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:41,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265658150] [2022-11-03 03:28:41,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265658150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:41,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:41,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:28:41,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704716193] [2022-11-03 03:28:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:41,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:28:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:41,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:28:41,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:28:41,792 INFO L87 Difference]: Start difference. First operand 61 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 03:28:41,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:41,886 INFO L93 Difference]: Finished difference Result 179 states and 240 transitions. [2022-11-03 03:28:41,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:28:41,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-11-03 03:28:41,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:41,890 INFO L225 Difference]: With dead ends: 179 [2022-11-03 03:28:41,890 INFO L226 Difference]: Without dead ends: 120 [2022-11-03 03:28:41,892 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 03:28:41,893 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 66 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:41,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 153 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:28:41,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-03 03:28:41,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2022-11-03 03:28:41,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 91 states have internal predecessors, (101), 28 states have call successors, (28), 16 states have call predecessors, (28), 16 states have return successors, (28), 17 states have call predecessors, (28), 28 states have call successors, (28) [2022-11-03 03:28:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 157 transitions. [2022-11-03 03:28:41,923 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 157 transitions. Word has length 25 [2022-11-03 03:28:41,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:41,924 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 157 transitions. [2022-11-03 03:28:41,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 03:28:41,925 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 157 transitions. [2022-11-03 03:28:41,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 03:28:41,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:41,927 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:41,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:28:41,928 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:41,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:41,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1938685961, now seen corresponding path program 1 times [2022-11-03 03:28:41,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:41,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929472943] [2022-11-03 03:28:41,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:41,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 03:28:42,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:42,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929472943] [2022-11-03 03:28:42,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929472943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:42,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:42,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:28:42,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141533734] [2022-11-03 03:28:42,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:42,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:28:42,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:42,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:28:42,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:28:42,134 INFO L87 Difference]: Start difference. First operand 117 states and 157 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:28:42,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:42,443 INFO L93 Difference]: Finished difference Result 322 states and 445 transitions. [2022-11-03 03:28:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:28:42,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-03 03:28:42,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:42,455 INFO L225 Difference]: With dead ends: 322 [2022-11-03 03:28:42,455 INFO L226 Difference]: Without dead ends: 207 [2022-11-03 03:28:42,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:28:42,465 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 41 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:42,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 340 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:28:42,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-03 03:28:42,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 198. [2022-11-03 03:28:42,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 129 states have (on average 1.310077519379845) internal successors, (169), 146 states have internal predecessors, (169), 38 states have call successors, (38), 30 states have call predecessors, (38), 30 states have return successors, (50), 33 states have call predecessors, (50), 38 states have call successors, (50) [2022-11-03 03:28:42,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 257 transitions. [2022-11-03 03:28:42,528 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 257 transitions. Word has length 28 [2022-11-03 03:28:42,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:42,529 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 257 transitions. [2022-11-03 03:28:42,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:28:42,529 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 257 transitions. [2022-11-03 03:28:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-03 03:28:42,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:42,537 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:42,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:28:42,538 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:42,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash -710785848, now seen corresponding path program 1 times [2022-11-03 03:28:42,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:42,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374847884] [2022-11-03 03:28:42,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:42,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:43,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:28:43,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:43,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374847884] [2022-11-03 03:28:43,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374847884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:43,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:43,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 03:28:43,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040682330] [2022-11-03 03:28:43,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:43,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 03:28:43,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:43,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 03:28:43,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-03 03:28:43,166 INFO L87 Difference]: Start difference. First operand 198 states and 257 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:28:43,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:43,482 INFO L93 Difference]: Finished difference Result 542 states and 704 transitions. [2022-11-03 03:28:43,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:28:43,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 38 [2022-11-03 03:28:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:43,487 INFO L225 Difference]: With dead ends: 542 [2022-11-03 03:28:43,487 INFO L226 Difference]: Without dead ends: 346 [2022-11-03 03:28:43,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:28:43,490 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 162 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:43,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 294 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:28:43,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-11-03 03:28:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 324. [2022-11-03 03:28:43,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 212 states have (on average 1.2971698113207548) internal successors, (275), 236 states have internal predecessors, (275), 60 states have call successors, (60), 49 states have call predecessors, (60), 51 states have return successors, (84), 53 states have call predecessors, (84), 60 states have call successors, (84) [2022-11-03 03:28:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 419 transitions. [2022-11-03 03:28:43,586 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 419 transitions. Word has length 38 [2022-11-03 03:28:43,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:43,587 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 419 transitions. [2022-11-03 03:28:43,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 03:28:43,588 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 419 transitions. [2022-11-03 03:28:43,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-03 03:28:43,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:43,590 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:43,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:28:43,590 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:43,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:43,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1358853564, now seen corresponding path program 1 times [2022-11-03 03:28:43,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:43,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087247468] [2022-11-03 03:28:43,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:43,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:28:44,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:44,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087247468] [2022-11-03 03:28:44,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087247468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:44,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:44,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:28:44,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488556137] [2022-11-03 03:28:44,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:44,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:28:44,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:44,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:28:44,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:28:44,038 INFO L87 Difference]: Start difference. First operand 324 states and 419 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 03:28:44,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:44,824 INFO L93 Difference]: Finished difference Result 960 states and 1292 transitions. [2022-11-03 03:28:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 03:28:44,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 41 [2022-11-03 03:28:44,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:44,835 INFO L225 Difference]: With dead ends: 960 [2022-11-03 03:28:44,836 INFO L226 Difference]: Without dead ends: 696 [2022-11-03 03:28:44,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:28:44,841 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 278 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:44,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 337 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 03:28:44,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-03 03:28:44,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 576. [2022-11-03 03:28:44,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 385 states have (on average 1.283116883116883) internal successors, (494), 424 states have internal predecessors, (494), 101 states have call successors, (101), 76 states have call predecessors, (101), 89 states have return successors, (144), 99 states have call predecessors, (144), 101 states have call successors, (144) [2022-11-03 03:28:44,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 739 transitions. [2022-11-03 03:28:44,965 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 739 transitions. Word has length 41 [2022-11-03 03:28:44,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:44,967 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 739 transitions. [2022-11-03 03:28:44,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 03:28:44,968 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 739 transitions. [2022-11-03 03:28:44,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-03 03:28:44,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:44,973 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:44,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:28:44,974 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:44,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:44,974 INFO L85 PathProgramCache]: Analyzing trace with hash 35483548, now seen corresponding path program 1 times [2022-11-03 03:28:44,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:44,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765277796] [2022-11-03 03:28:44,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:44,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:28:45,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:45,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765277796] [2022-11-03 03:28:45,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765277796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:28:45,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:28:45,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:28:45,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335369453] [2022-11-03 03:28:45,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:28:45,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:28:45,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:28:45,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:28:45,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:28:45,071 INFO L87 Difference]: Start difference. First operand 576 states and 739 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 03:28:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:28:45,180 INFO L93 Difference]: Finished difference Result 680 states and 873 transitions. [2022-11-03 03:28:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:28:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2022-11-03 03:28:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:28:45,183 INFO L225 Difference]: With dead ends: 680 [2022-11-03 03:28:45,183 INFO L226 Difference]: Without dead ends: 270 [2022-11-03 03:28:45,185 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 03:28:45,186 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 31 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:28:45,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 151 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:28:45,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-03 03:28:45,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2022-11-03 03:28:45,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 181 states have (on average 1.2320441988950277) internal successors, (223), 198 states have internal predecessors, (223), 46 states have call successors, (46), 35 states have call predecessors, (46), 42 states have return successors, (65), 47 states have call predecessors, (65), 46 states have call successors, (65) [2022-11-03 03:28:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 334 transitions. [2022-11-03 03:28:45,235 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 334 transitions. Word has length 41 [2022-11-03 03:28:45,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:28:45,236 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 334 transitions. [2022-11-03 03:28:45,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 03:28:45,236 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 334 transitions. [2022-11-03 03:28:45,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-03 03:28:45,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:28:45,241 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:28:45,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:28:45,241 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:28:45,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:28:45,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1146335313, now seen corresponding path program 1 times [2022-11-03 03:28:45,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:28:45,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333527627] [2022-11-03 03:28:45,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:45,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:28:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:45,478 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 03:28:45,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:28:45,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333527627] [2022-11-03 03:28:45,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333527627] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:28:45,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602870008] [2022-11-03 03:28:45,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:28:45,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:28:45,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:28:45,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:28:45,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:28:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:28:45,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:28:45,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:28:45,914 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:28:45,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:28:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 03:28:46,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602870008] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:28:46,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [53231408] [2022-11-03 03:28:46,205 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2022-11-03 03:28:46,205 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:28:46,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:28:46,218 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:28:46,218 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:28:58,562 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 307 for LOIs [2022-11-03 03:28:58,694 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-03 03:28:58,940 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 58 for LOIs [2022-11-03 03:28:59,226 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 34 for LOIs [2022-11-03 03:28:59,268 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 55 for LOIs [2022-11-03 03:28:59,282 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:29:13,976 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7527#(and (= |timeShift_getWaterLevel_~retValue_acc~7#1| |timeShift_getWaterLevel_#res#1|) (<= 0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| |timeShift_getWaterLevel_#res#1|) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (<= 2 |old(~waterLevel~0)|) (= |timeShift_getWaterLevel_~retValue_acc~7#1| ~waterLevel~0) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 2)) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1|) (= |#NULL.base| 0))' at error location [2022-11-03 03:29:13,976 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:29:13,976 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:29:13,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2022-11-03 03:29:13,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987685358] [2022-11-03 03:29:13,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:29:13,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 03:29:13,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:13,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 03:29:13,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=1692, Unknown=0, NotChecked=0, Total=1980 [2022-11-03 03:29:13,980 INFO L87 Difference]: Start difference. First operand 270 states and 334 transitions. Second operand has 14 states, 12 states have (on average 8.083333333333334) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (21), 10 states have call predecessors, (21), 8 states have call successors, (21) [2022-11-03 03:29:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:15,197 INFO L93 Difference]: Finished difference Result 454 states and 567 transitions. [2022-11-03 03:29:15,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 03:29:15,198 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.083333333333334) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (21), 10 states have call predecessors, (21), 8 states have call successors, (21) Word has length 73 [2022-11-03 03:29:15,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:15,204 INFO L225 Difference]: With dead ends: 454 [2022-11-03 03:29:15,205 INFO L226 Difference]: Without dead ends: 311 [2022-11-03 03:29:15,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 184 SyntacticMatches, 10 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1368 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=510, Invalid=3272, Unknown=0, NotChecked=0, Total=3782 [2022-11-03 03:29:15,208 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 409 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:15,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 509 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 03:29:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-11-03 03:29:15,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 309. [2022-11-03 03:29:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 204 states have (on average 1.1911764705882353) internal successors, (243), 224 states have internal predecessors, (243), 53 states have call successors, (53), 45 states have call predecessors, (53), 51 states have return successors, (66), 53 states have call predecessors, (66), 53 states have call successors, (66) [2022-11-03 03:29:15,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 362 transitions. [2022-11-03 03:29:15,242 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 362 transitions. Word has length 73 [2022-11-03 03:29:15,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:15,243 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 362 transitions. [2022-11-03 03:29:15,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.083333333333334) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (21), 10 states have call predecessors, (21), 8 states have call successors, (21) [2022-11-03 03:29:15,243 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 362 transitions. [2022-11-03 03:29:15,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-03 03:29:15,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:15,247 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, 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] [2022-11-03 03:29:15,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:15,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 03:29:15,467 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:15,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:15,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2064584164, now seen corresponding path program 1 times [2022-11-03 03:29:15,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:15,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259441373] [2022-11-03 03:29:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:15,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:15,869 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-03 03:29:15,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:15,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259441373] [2022-11-03 03:29:15,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259441373] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:29:15,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151097738] [2022-11-03 03:29:15,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:15,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:29:15,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:29:15,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:29:15,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:29:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:16,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 03:29:16,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 03:29:16,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:29:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 03:29:16,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151097738] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:29:16,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [268235524] [2022-11-03 03:29:16,841 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-03 03:29:16,841 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:29:16,842 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:29:16,843 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:29:16,843 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:29:22,665 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 56 for LOIs [2022-11-03 03:29:22,682 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-03 03:29:23,087 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 26 for LOIs [2022-11-03 03:29:23,136 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-03 03:29:23,160 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2022-11-03 03:29:23,170 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:29:30,738 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9340#(and (= |timeShift_getWaterLevel_~retValue_acc~7#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.offset 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| |timeShift_getWaterLevel_#res#1|) (<= |#NULL.offset| 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (= |timeShift_getWaterLevel_~retValue_acc~7#1| ~waterLevel~0) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= ~head~0.base 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 2)) (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|) (<= 0 |#NULL.offset|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1|) (= |#NULL.base| 0))' at error location [2022-11-03 03:29:30,738 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:29:30,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:29:30,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2022-11-03 03:29:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118121438] [2022-11-03 03:29:30,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:29:30,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 03:29:30,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 03:29:30,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2065, Unknown=0, NotChecked=0, Total=2352 [2022-11-03 03:29:30,743 INFO L87 Difference]: Start difference. First operand 309 states and 362 transitions. Second operand has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2022-11-03 03:29:33,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:33,028 INFO L93 Difference]: Finished difference Result 913 states and 1163 transitions. [2022-11-03 03:29:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-03 03:29:33,029 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) Word has length 96 [2022-11-03 03:29:33,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:33,033 INFO L225 Difference]: With dead ends: 913 [2022-11-03 03:29:33,033 INFO L226 Difference]: Without dead ends: 598 [2022-11-03 03:29:33,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 259 SyntacticMatches, 8 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2163 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=663, Invalid=5037, Unknown=0, NotChecked=0, Total=5700 [2022-11-03 03:29:33,037 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 550 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:33,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 607 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-03 03:29:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-11-03 03:29:33,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 386. [2022-11-03 03:29:33,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 256 states have (on average 1.15625) internal successors, (296), 279 states have internal predecessors, (296), 63 states have call successors, (63), 56 states have call predecessors, (63), 66 states have return successors, (83), 67 states have call predecessors, (83), 63 states have call successors, (83) [2022-11-03 03:29:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 442 transitions. [2022-11-03 03:29:33,093 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 442 transitions. Word has length 96 [2022-11-03 03:29:33,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:33,094 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 442 transitions. [2022-11-03 03:29:33,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2022-11-03 03:29:33,095 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 442 transitions. [2022-11-03 03:29:33,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-03 03:29:33,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:33,096 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-11-03 03:29:33,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:29:33,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:29:33,315 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:33,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:33,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1893254194, now seen corresponding path program 1 times [2022-11-03 03:29:33,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:33,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165247611] [2022-11-03 03:29:33,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:33,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:33,547 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-03 03:29:33,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:33,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165247611] [2022-11-03 03:29:33,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165247611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:29:33,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:29:33,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:29:33,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487443938] [2022-11-03 03:29:33,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:29:33,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:29:33,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:29:33,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:29:33,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:29:33,549 INFO L87 Difference]: Start difference. First operand 386 states and 442 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-03 03:29:33,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:29:33,818 INFO L93 Difference]: Finished difference Result 988 states and 1136 transitions. [2022-11-03 03:29:33,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:29:33,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 101 [2022-11-03 03:29:33,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:29:33,824 INFO L225 Difference]: With dead ends: 988 [2022-11-03 03:29:33,824 INFO L226 Difference]: Without dead ends: 768 [2022-11-03 03:29:33,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:29:33,826 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 138 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:29:33,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 222 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:29:33,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2022-11-03 03:29:33,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 766. [2022-11-03 03:29:33,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 509 states have (on average 1.1532416502946954) internal successors, (587), 552 states have internal predecessors, (587), 124 states have call successors, (124), 112 states have call predecessors, (124), 132 states have return successors, (164), 134 states have call predecessors, (164), 124 states have call successors, (164) [2022-11-03 03:29:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 875 transitions. [2022-11-03 03:29:33,930 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 875 transitions. Word has length 101 [2022-11-03 03:29:33,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:29:33,931 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 875 transitions. [2022-11-03 03:29:33,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-03 03:29:33,931 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 875 transitions. [2022-11-03 03:29:33,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 03:29:33,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:29:33,934 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:29:33,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 03:29:33,934 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:29:33,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:29:33,935 INFO L85 PathProgramCache]: Analyzing trace with hash -934254643, now seen corresponding path program 1 times [2022-11-03 03:29:33,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:29:33,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097664259] [2022-11-03 03:29:33,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:33,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:29:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-03 03:29:35,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:29:35,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097664259] [2022-11-03 03:29:35,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097664259] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:29:35,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637301244] [2022-11-03 03:29:35,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:29:35,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:29:35,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:29:35,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:29:35,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:29:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:29:35,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-03 03:29:35,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:29:36,051 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 62 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 03:29:36,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:29:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 54 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-03 03:29:36,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637301244] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:29:36,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2058232072] [2022-11-03 03:29:36,875 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2022-11-03 03:29:36,875 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:29:36,875 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:29:36,876 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:29:36,876 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:29:50,780 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 333 for LOIs [2022-11-03 03:29:51,115 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-03 03:29:51,373 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 27 for LOIs [2022-11-03 03:29:51,416 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 27 for LOIs [2022-11-03 03:29:51,438 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 54 for LOIs [2022-11-03 03:29:51,458 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 50 for LOIs [2022-11-03 03:29:51,468 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 33 for LOIs [2022-11-03 03:29:51,471 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:30:09,594 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14690#(and (<= ~methaneLevelCritical~0 1) (= |timeShift_getWaterLevel_~retValue_acc~7#1| |timeShift_getWaterLevel_#res#1|) (<= 0 |old(~pumpRunning~0)|) (= ~head~0.offset 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 1) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| |timeShift_getWaterLevel_#res#1|) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~7#1| ~waterLevel~0) (<= 0 ~methaneLevelCritical~0) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 2)) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~7#1| 2147483648)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 03:30:09,595 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:30:09,595 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:30:09,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 11] total 34 [2022-11-03 03:30:09,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930105531] [2022-11-03 03:30:09,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:30:09,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-03 03:30:09,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:09,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-03 03:30:09,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=444, Invalid=4386, Unknown=0, NotChecked=0, Total=4830 [2022-11-03 03:30:09,600 INFO L87 Difference]: Start difference. First operand 766 states and 875 transitions. Second operand has 34 states, 32 states have (on average 4.9375) internal successors, (158), 33 states have internal predecessors, (158), 18 states have call successors, (33), 8 states have call predecessors, (33), 13 states have return successors, (33), 18 states have call predecessors, (33), 17 states have call successors, (33) [2022-11-03 03:30:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:15,281 INFO L93 Difference]: Finished difference Result 1914 states and 2269 transitions. [2022-11-03 03:30:15,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-03 03:30:15,282 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 4.9375) internal successors, (158), 33 states have internal predecessors, (158), 18 states have call successors, (33), 8 states have call predecessors, (33), 13 states have return successors, (33), 18 states have call predecessors, (33), 17 states have call successors, (33) Word has length 104 [2022-11-03 03:30:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:15,284 INFO L225 Difference]: With dead ends: 1914 [2022-11-03 03:30:15,284 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:30:15,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 278 SyntacticMatches, 13 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5821 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=1640, Invalid=13122, Unknown=0, NotChecked=0, Total=14762 [2022-11-03 03:30:15,294 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 2447 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 1781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 4203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1781 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:15,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 1165 Invalid, 4203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1781 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 03:30:15,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:30:15,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:30:15,295 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 03:30:15,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:30:15,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2022-11-03 03:30:15,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:15,296 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:30:15,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 4.9375) internal successors, (158), 33 states have internal predecessors, (158), 18 states have call successors, (33), 8 states have call predecessors, (33), 13 states have return successors, (33), 18 states have call predecessors, (33), 17 states have call successors, (33) [2022-11-03 03:30:15,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:30:15,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:30:15,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:30:15,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:30:15,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:15,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 03:30:31,395 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 871 878) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,395 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 871 878) no Hoare annotation was computed. [2022-11-03 03:30:31,395 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 778 784) no Hoare annotation was computed. [2022-11-03 03:30:31,395 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 778 784) the Hoare annotation is: true [2022-11-03 03:30:31,396 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 666 677) the Hoare annotation is: (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0)) (.cse7 (= ~methaneLevelCritical~0 0))) (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse12 (not (<= ~waterLevel~0 0))) (.cse5 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse8 (not (= ~pumpRunning~0 0))) (.cse3 (not .cse7)) (.cse9 (not (< ~waterLevel~0 3))) (.cse6 (not .cse2)) (.cse1 (not (= 1 ~systemActive~0))) (.cse10 (not (<= 2 ~waterLevel~0))) (.cse4 (not (= ~pumpRunning~0 1))) (.cse11 (not (<= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse6 .cse7 .cse1 .cse4 .cse5) (or .cse6 .cse8 .cse7 .cse1 .cse9) (or .cse1 .cse2 .cse10 .cse3 .cse4 .cse11) (or .cse6 .cse12 .cse7 .cse1 .cse4 .cse5) (or .cse12 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse8 .cse1 .cse2 .cse3 .cse9) (or .cse6 .cse7 .cse1 .cse10 .cse4 .cse11)))) [2022-11-03 03:30:31,397 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 666 677) no Hoare annotation was computed. [2022-11-03 03:30:31,397 INFO L895 garLoopResultBuilder]: At program point L1018(line 1018) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 0 ~systemActive~0))) (.cse12 (not (<= |old(~waterLevel~0)| 1))) (.cse10 (= ~pumpRunning~0 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| ~waterLevel~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse15 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse5 (not (= 1 ~systemActive~0))) (.cse13 (and (< 0 (+ |timeShift_processEnvironment_~tmp~7#1| 1)) (<= |timeShift_processEnvironment_~tmp~7#1| 0))) (.cse14 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (<= |old(~waterLevel~0)| 2))) (.cse11 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (and .cse1 (<= ~waterLevel~0 1) .cse3 .cse4) .cse5 (not (< |old(~waterLevel~0)| 3))) (or (and .cse1 .cse3 .cse6 .cse7) .cse5 .cse8 .cse9 (and .cse3 .cse6 .cse7 .cse10) .cse11) (or .cse12 .cse5 .cse13 .cse14 .cse8 .cse15) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse6 .cse2) (or .cse0 .cse9 .cse2 .cse11) (let ((.cse17 (< 0 |old(~waterLevel~0)|))) (let ((.cse16 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse17))) (or .cse12 (and (<= ~waterLevel~0 0) .cse3 (or .cse16 .cse4) .cse7 .cse10) .cse5 (and .cse1 .cse3 (or (and (not .cse17) .cse4) .cse16) .cse7) .cse8 .cse15))) (or .cse5 .cse13 .cse14 .cse8 .cse9 .cse11))) [2022-11-03 03:30:31,398 INFO L895 garLoopResultBuilder]: At program point L857(line 857) the Hoare annotation is: (let ((.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or .cse3 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse2) (or .cse0 .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-03 03:30:31,398 INFO L899 garLoopResultBuilder]: For program point L1018-1(line 1018) no Hoare annotation was computed. [2022-11-03 03:30:31,398 INFO L895 garLoopResultBuilder]: At program point L857-1(lines 838 862) the Hoare annotation is: (let ((.cse8 (not (<= |old(~waterLevel~0)| 1))) (.cse11 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse9 (and (< 0 (+ |timeShift_processEnvironment_~tmp~7#1| 1)) (<= |timeShift_processEnvironment_~tmp~7#1| 0))) (.cse10 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse15 (not (= |old(~pumpRunning~0)| 0)))) (and (let ((.cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5 .cse6 (and .cse7 .cse2 .cse3))) (or .cse8 .cse0 .cse9 .cse10 .cse1 .cse11) (let ((.cse14 (< 0 |old(~waterLevel~0)|))) (let ((.cse12 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse14))) (or .cse8 .cse0 .cse1 (and (<= ~waterLevel~0 0) (or .cse12 .cse13) .cse3 .cse4) .cse11 (and .cse7 (or (and (not .cse14) .cse13) .cse12) .cse3)))) (or .cse15 (and .cse7 .cse13) .cse0 (and (<= 2 ~waterLevel~0) .cse13 .cse4) (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse9 .cse10 .cse1 .cse5 .cse6) (or .cse15 (not (= 0 ~systemActive~0))))) [2022-11-03 03:30:31,399 INFO L899 garLoopResultBuilder]: For program point L758-2(lines 754 776) no Hoare annotation was computed. [2022-11-03 03:30:31,399 INFO L895 garLoopResultBuilder]: At program point L561(line 561) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (< |old(~waterLevel~0)| 3))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2) (or .cse0 .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse0 .cse2) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-03 03:30:31,399 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 854) no Hoare annotation was computed. [2022-11-03 03:30:31,400 INFO L895 garLoopResultBuilder]: At program point L1003(line 1003) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (and .cse10 (= ~pumpRunning~0 1))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse12 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse13 (and .cse9 .cse10)) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (not (= 0 ~systemActive~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse3 .cse6) (or .cse7 .cse8 (and .cse9 (or .cse10 (= ~waterLevel~0 1)))) (or .cse1 .cse2 .cse11 .cse4 .cse12) (or .cse7 .cse13 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse7 .cse1 .cse11 .cse4 .cse12) (or .cse0 .cse7 .cse13 .cse1) (or .cse7 .cse10 .cse5 .cse8 .cse6)))) [2022-11-03 03:30:31,400 INFO L895 garLoopResultBuilder]: At program point L1003-1(line 1003) the Hoare annotation is: (let ((.cse9 (= 1 ~systemActive~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 0 ~systemActive~0))) (.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse9 .cse3 (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret52#1|) (< ~waterLevel~0 3))) (.cse5 (not .cse9)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and .cse2 (or .cse3 (= ~waterLevel~0 1)))) (or (not (<= |old(~waterLevel~0)| 1)) .cse4 .cse5 .cse6 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (and .cse2 .cse3) .cse5 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse3 .cse7 .cse1 .cse8) (or .cse4 .cse5 .cse6 .cse7 .cse8)))) [2022-11-03 03:30:31,400 INFO L895 garLoopResultBuilder]: At program point L842(lines 842 859) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse5 (and (= ~pumpRunning~0 0) .cse7)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse5 .cse0 (not (= |old(~waterLevel~0)| 2))) (or .cse6 .cse0 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) .cse7) .cse2 .cse3) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse6 .cse4 .cse5 .cse0) (or .cse4 (not (= 0 ~systemActive~0)))))) [2022-11-03 03:30:31,401 INFO L899 garLoopResultBuilder]: For program point L1020(lines 1020 1030) no Hoare annotation was computed. [2022-11-03 03:30:31,402 INFO L899 garLoopResultBuilder]: For program point L1016(lines 1016 1033) no Hoare annotation was computed. [2022-11-03 03:30:31,402 INFO L895 garLoopResultBuilder]: At program point L1016-1(lines 1008 1036) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse11 (= 1 ~systemActive~0)) (.cse6 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| ~waterLevel~0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse12 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse14 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not (= 0 ~systemActive~0))) (.cse18 (= ~waterLevel~0 1)) (.cse7 (<= 1 ~switchedOnBeforeTS~0)) (.cse15 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse19 (and .cse1 .cse11 .cse6 .cse3)) (.cse8 (= ~pumpRunning~0 1)) (.cse9 (not .cse11)) (.cse16 (and (< 0 (+ |timeShift_processEnvironment_~tmp~7#1| 1)) (<= |timeShift_processEnvironment_~tmp~7#1| 0))) (.cse17 (not (= ~methaneLevelCritical~0 0))) (.cse10 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or (and (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 2) .cse3) .cse0 .cse4 .cse2 .cse5) (or (and .cse6 .cse3 .cse7 .cse8) .cse9 .cse10 (and .cse1 .cse11 .cse6 .cse3 .cse7) (not (<= |old(~waterLevel~0)| 0)) .cse12) (let ((.cse13 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and .cse1 .cse13 .cse11 .cse6 .cse7) .cse14 .cse9 .cse10 (and .cse13 .cse6 .cse7 .cse8) .cse12)) (or .cse15 .cse9 .cse16 .cse17 .cse10 .cse12) (or .cse0 .cse14 .cse18 .cse2) (or (and .cse1 .cse11 .cse6 .cse18 .cse7) .cse9 .cse10 .cse4 (and .cse6 .cse18 .cse7 .cse8) .cse5) (or .cse15 .cse0 .cse19 .cse9) (or .cse0 .cse19 (and .cse6 .cse3 .cse8) .cse9 (not (= |old(~waterLevel~0)| 2))) (or .cse9 .cse16 .cse17 .cse10 .cse4 .cse5)))) [2022-11-03 03:30:31,402 INFO L899 garLoopResultBuilder]: For program point L1021(lines 1021 1027) no Hoare annotation was computed. [2022-11-03 03:30:31,403 INFO L895 garLoopResultBuilder]: At program point L765-1(lines 765 771) the Hoare annotation is: (let ((.cse5 (= ~waterLevel~0 1)) (.cse10 (not (<= |old(~waterLevel~0)| 1))) (.cse13 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse7 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse15 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (= 0 ~systemActive~0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse11 (and (< 0 (+ |timeShift_processEnvironment_~tmp~7#1| 1)) (<= |timeShift_processEnvironment_~tmp~7#1| 0))) (.cse12 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 (and .cse5 .cse6 .cse7) .cse8 .cse9 (and .cse1 .cse5 .cse6)) (or .cse10 .cse3 .cse11 .cse12 .cse4 .cse13) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse5 .cse2) (let ((.cse16 (< 0 |old(~waterLevel~0)|))) (let ((.cse14 (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse16))) (or .cse10 .cse3 .cse4 (and (<= ~waterLevel~0 0) (or .cse14 .cse15) .cse6 .cse7) .cse13 (and .cse1 (or (and (not .cse16) .cse15) .cse14) .cse6)))) (or .cse0 (and .cse1 .cse15) .cse3 (and (<= 2 ~waterLevel~0) .cse15 .cse7) (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse15 .cse8 .cse2 .cse9) (or .cse3 .cse11 .cse12 .cse4 .cse8 .cse9))) [2022-11-03 03:30:31,403 INFO L895 garLoopResultBuilder]: At program point L852(line 852) the Hoare annotation is: (let ((.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (and (< 0 (+ |timeShift_processEnvironment_~tmp~7#1| 1)) (<= |timeShift_processEnvironment_~tmp~7#1| 0))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse10 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) .cse4 .cse5) (or .cse6 .cse0 .cse7 .cse8 .cse1 .cse9) (or .cse6 .cse0 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3) .cse9) (or .cse10 .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse7 .cse8 .cse1 .cse4 .cse5) (or .cse10 (not (= 0 ~systemActive~0))))) [2022-11-03 03:30:31,404 INFO L895 garLoopResultBuilder]: At program point L848(line 848) the Hoare annotation is: (let ((.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse7 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse8 (not (< |old(~waterLevel~0)| 3))) (.cse9 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) .cse4 .cse5) (or .cse0 .cse6 .cse1 .cse7 .cse8) (or .cse0 .cse6 .cse1 .cse4 .cse5) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (<= ~waterLevel~0 0) (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3) .cse7) (or .cse9 .cse0 .cse8) (or .cse9 (not (= 0 ~systemActive~0))))) [2022-11-03 03:30:31,404 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 751 777) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (and .cse10 (= ~pumpRunning~0 1))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse11 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (.cse12 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse13 (and .cse9 .cse10)) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (not (= 0 ~systemActive~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse3 .cse6) (or .cse7 .cse8 (and .cse9 (or .cse10 (= ~waterLevel~0 1)))) (or .cse1 .cse2 .cse11 .cse4 .cse12) (or .cse7 .cse13 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse7 .cse1 .cse11 .cse4 .cse12) (or .cse0 .cse7 .cse13 .cse1) (or .cse7 .cse10 .cse5 .cse8 .cse6)))) [2022-11-03 03:30:31,404 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 751 777) no Hoare annotation was computed. [2022-11-03 03:30:31,404 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 561) no Hoare annotation was computed. [2022-11-03 03:30:31,405 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2022-11-03 03:30:31,405 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2022-11-03 03:30:31,405 INFO L902 garLoopResultBuilder]: At program point L443(lines 418 447) the Hoare annotation is: true [2022-11-03 03:30:31,405 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2022-11-03 03:30:31,405 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2022-11-03 03:30:31,406 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2022-11-03 03:30:31,406 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2022-11-03 03:30:31,406 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2022-11-03 03:30:31,406 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2022-11-03 03:30:31,406 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 603) no Hoare annotation was computed. [2022-11-03 03:30:31,407 INFO L899 garLoopResultBuilder]: For program point L597-1(lines 597 603) no Hoare annotation was computed. [2022-11-03 03:30:31,407 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 983) no Hoare annotation was computed. [2022-11-03 03:30:31,407 INFO L895 garLoopResultBuilder]: At program point L977-1(lines 977 983) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 03:30:31,407 INFO L895 garLoopResultBuilder]: At program point L622(lines 577 624) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) .cse4))) [2022-11-03 03:30:31,407 INFO L895 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) .cse4))) [2022-11-03 03:30:31,408 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 03:30:31,408 INFO L899 garLoopResultBuilder]: For program point L578(lines 577 624) no Hoare annotation was computed. [2022-11-03 03:30:31,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 03:30:31,408 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 620) no Hoare annotation was computed. [2022-11-03 03:30:31,408 INFO L895 garLoopResultBuilder]: At program point L508(lines 508 515) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-03 03:30:31,409 INFO L902 garLoopResultBuilder]: At program point L508-2(lines 508 515) the Hoare annotation is: true [2022-11-03 03:30:31,409 INFO L895 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) .cse4))) [2022-11-03 03:30:31,409 INFO L902 garLoopResultBuilder]: At program point L628(lines 567 632) the Hoare annotation is: true [2022-11-03 03:30:31,409 INFO L895 garLoopResultBuilder]: At program point L979(line 979) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (not (= ~waterLevel~0 1)) .cse0))) [2022-11-03 03:30:31,409 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2022-11-03 03:30:31,410 INFO L899 garLoopResultBuilder]: For program point L587-1(lines 587 593) no Hoare annotation was computed. [2022-11-03 03:30:31,410 INFO L895 garLoopResultBuilder]: At program point L625(lines 576 626) the Hoare annotation is: false [2022-11-03 03:30:31,410 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 619) no Hoare annotation was computed. [2022-11-03 03:30:31,410 INFO L895 garLoopResultBuilder]: At program point L613-2(lines 607 620) the Hoare annotation is: (let ((.cse3 (< ~waterLevel~0 3)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= ~waterLevel~0 2) .cse4))) [2022-11-03 03:30:31,411 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 786 810) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,411 INFO L895 garLoopResultBuilder]: At program point L800(line 800) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or .cse0 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0) .cse1 (not (<= ~waterLevel~0 1))) (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3) (or (not (<= ~waterLevel~0 0)) .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,411 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 786 810) no Hoare annotation was computed. [2022-11-03 03:30:31,411 INFO L895 garLoopResultBuilder]: At program point L794(lines 794 802) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or .cse0 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0) .cse1 (not (<= ~waterLevel~0 1))) (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3) (or (not (<= ~waterLevel~0 0)) .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,411 INFO L895 garLoopResultBuilder]: At program point L790(lines 790 807) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,411 INFO L895 garLoopResultBuilder]: At program point L805(line 805) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,412 INFO L899 garLoopResultBuilder]: For program point L805-1(lines 786 810) no Hoare annotation was computed. [2022-11-03 03:30:31,412 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 654 665) no Hoare annotation was computed. [2022-11-03 03:30:31,412 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 654 665) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 1))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse4 .cse2 (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) (or .cse0 .cse1 .cse2 (not (<= 1 ~switchedOnBeforeTS~0)) (not (< |old(~waterLevel~0)| 3))) (or .cse4 .cse0 .cse2 .cse3))) [2022-11-03 03:30:31,412 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 812 836) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,413 INFO L895 garLoopResultBuilder]: At program point L826(line 826) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,413 INFO L895 garLoopResultBuilder]: At program point L822(line 822) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,413 INFO L899 garLoopResultBuilder]: For program point L820(lines 820 828) no Hoare annotation was computed. [2022-11-03 03:30:31,413 INFO L895 garLoopResultBuilder]: At program point L816(lines 816 833) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3))) [2022-11-03 03:30:31,414 INFO L895 garLoopResultBuilder]: At program point L831(line 831) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not (<= 1 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (< ~waterLevel~0 3))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (not (<= ~waterLevel~0 0)) .cse0 .cse1 .cse2))) [2022-11-03 03:30:31,414 INFO L899 garLoopResultBuilder]: For program point L831-1(lines 812 836) no Hoare annotation was computed. [2022-11-03 03:30:31,414 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 812 836) no Hoare annotation was computed. [2022-11-03 03:30:31,414 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 890 898) no Hoare annotation was computed. [2022-11-03 03:30:31,414 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 890 898) the Hoare annotation is: true [2022-11-03 03:30:31,417 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:31,420 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:30:31,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:30:31 BoogieIcfgContainer [2022-11-03 03:30:31,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:30:31,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:30:31,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:30:31,457 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:30:31,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:28:40" (3/4) ... [2022-11-03 03:30:31,461 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:30:31,468 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 03:30:31,468 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 03:30:31,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 03:30:31,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 03:30:31,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 03:30:31,469 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 03:30:31,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 03:30:31,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-11-03 03:30:31,470 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-03 03:30:31,479 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 82 nodes and edges [2022-11-03 03:30:31,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-03 03:30:31,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 03:30:31,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 03:30:31,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:30:31,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:30:31,483 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:30:31,510 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(waterLevel) <= 1) || ((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && \old(waterLevel) == waterLevel) && 1 <= aux-isPumpRunning()-aux) && waterLevel < 3)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && \old(waterLevel) == waterLevel) && 1 <= aux-isPumpRunning()-aux) && waterLevel < 3) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-03 03:30:31,511 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-03 03:30:31,512 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && ((((((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((((((tmp == waterLevel && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && (((((((((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && tmp == waterLevel) && 1 <= switchedOnBeforeTS) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((\old(waterLevel) == waterLevel + 1 && tmp == waterLevel) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || ((tmp == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(waterLevel) == 2))) && (((((!(1 == systemActive) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-03 03:30:31,512 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) == 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-03 03:30:31,512 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-03 03:30:31,513 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-03 03:30:31,513 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2022-11-03 03:30:31,513 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) [2022-11-03 03:30:31,514 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || tmp == 0) || !(1 == systemActive)) || !(waterLevel <= 1)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3))) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) [2022-11-03 03:30:31,540 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:30:31,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:30:31,541 INFO L158 Benchmark]: Toolchain (without parser) took 112718.52ms. Allocated memory was 113.2MB in the beginning and 780.1MB in the end (delta: 666.9MB). Free memory was 81.8MB in the beginning and 333.0MB in the end (delta: -251.2MB). Peak memory consumption was 415.7MB. Max. memory is 16.1GB. [2022-11-03 03:30:31,541 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 88.1MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:30:31,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.69ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 79.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 03:30:31,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.35ms. Allocated memory is still 113.2MB. Free memory was 79.5MB in the beginning and 77.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 03:30:31,542 INFO L158 Benchmark]: Boogie Preprocessor took 32.37ms. Allocated memory is still 113.2MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:30:31,543 INFO L158 Benchmark]: RCFGBuilder took 970.51ms. Allocated memory is still 113.2MB. Free memory was 75.3MB in the beginning and 43.4MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-03 03:30:31,543 INFO L158 Benchmark]: TraceAbstraction took 110963.58ms. Allocated memory was 113.2MB in the beginning and 780.1MB in the end (delta: 666.9MB). Free memory was 43.0MB in the beginning and 339.3MB in the end (delta: -296.3MB). Peak memory consumption was 438.6MB. Max. memory is 16.1GB. [2022-11-03 03:30:31,544 INFO L158 Benchmark]: Witness Printer took 84.19ms. Allocated memory is still 780.1MB. Free memory was 339.3MB in the beginning and 333.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 03:30:31,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 88.1MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.69ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 79.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.35ms. Allocated memory is still 113.2MB. Free memory was 79.5MB in the beginning and 77.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.37ms. Allocated memory is still 113.2MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 970.51ms. Allocated memory is still 113.2MB. Free memory was 75.3MB in the beginning and 43.4MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 110963.58ms. Allocated memory was 113.2MB in the beginning and 780.1MB in the end (delta: 666.9MB). Free memory was 43.0MB in the beginning and 339.3MB in the end (delta: -296.3MB). Peak memory consumption was 438.6MB. Max. memory is 16.1GB. * Witness Printer took 84.19ms. Allocated memory is still 780.1MB. Free memory was 339.3MB in the beginning and 333.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 561]: 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 10 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 110.8s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4160 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4136 mSDsluCounter, 3973 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3275 mSDsCounter, 2592 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5004 IncrementalHoareTripleChecker+Invalid, 7596 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2592 mSolverCounterUnsat, 1128 mSDtfsCounter, 5004 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1063 GetRequests, 744 SyntacticMatches, 31 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9397 ImplicationChecksByTransitivity, 46.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=766occurred in iteration=10, InterpolantAutomatonStates: 155, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 370 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 2294 PreInvPairs, 2718 NumberOfFragments, 3138 HoareAnnotationTreeSize, 2294 FomulaSimplifications, 12592 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 43 FomulaSimplificationsInter, 54804 FormulaSimplificationTreeSizeReductionInter, 14.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 863 NumberOfCodeBlocks, 863 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1119 ConstructedInterpolants, 0 QuantifiedInterpolants, 3540 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1585 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 559/665 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: 816]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 842]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) == 2))) && ((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3)) && ((((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1)) && ((((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) || pumpRunning == 1) - InvariantResult [Line: 1003]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(waterLevel) <= 1) || ((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && \old(waterLevel) == waterLevel) && 1 <= aux-isPumpRunning()-aux) && waterLevel < 3)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((((((pumpRunning == \old(pumpRunning) && 1 == systemActive) && \old(waterLevel) == waterLevel) && 1 <= aux-isPumpRunning()-aux) && waterLevel < 3) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 1008]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && ((((((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((((((tmp == waterLevel && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 0)) || !(1 <= \old(switchedOnBeforeTS)))) && (((((((((pumpRunning == 0 && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && tmp == waterLevel) && 1 <= switchedOnBeforeTS) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((\old(waterLevel) == waterLevel + 1 && tmp == waterLevel) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((((((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || (((tmp == waterLevel && waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || !(1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 == systemActive) && tmp == waterLevel) && \old(waterLevel) == waterLevel)) || ((tmp == waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(waterLevel) == 2))) && (((((!(1 == systemActive) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 794]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || tmp == 0) || !(1 == systemActive)) || !(waterLevel <= 1)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel < 3))) && (((!(waterLevel == 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS))) && (((!(waterLevel <= 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(1 <= switchedOnBeforeTS)) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 838]: Loop Invariant Derived loop invariant: (((((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS)) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && (((((!(1 == systemActive) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel < 3) || ((((1 == systemActive && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && waterLevel < 3) && pumpRunning == 1)) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || ((((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1) - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) || !(\old(waterLevel) < 3)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 977]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || ((pumpRunning == 0 && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((!(\old(waterLevel) <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((waterLevel <= 0 && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || !(1 <= \old(switchedOnBeforeTS))) || ((pumpRunning == 0 && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && 1 <= switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || (0 < tmp + 1 && tmp <= 0)) || !(methaneLevelCritical == 0)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-11-03 03:30:31,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24c0878-9880-4d16-a0b2-ce8558ceda55/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