./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product23.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_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/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_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/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_c0688b96-e728-4d01-b535-191283908079/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 df939eacd07971dbe984826c04d07f64706b0716dba249ed14f3095e44967ff6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:50:47,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:50:47,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:50:47,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:50:47,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:50:47,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:50:47,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:50:47,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:50:47,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:50:47,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:50:47,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:50:47,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:50:47,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:50:47,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:50:47,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:50:47,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:50:47,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:50:47,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:50:47,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:50:47,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:50:47,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:50:47,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:50:47,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:50:47,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:50:47,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:50:47,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:50:47,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:50:47,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:50:47,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:50:47,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:50:47,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:50:47,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:50:47,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:50:47,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:50:47,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:50:47,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:50:47,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:50:47,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:50:47,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:50:47,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:50:47,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:50:47,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:50:47,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:50:47,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:50:47,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:50:47,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:50:47,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:50:47,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:50:47,419 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:50:47,419 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:50:47,420 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:50:47,420 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:50:47,421 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:50:47,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:50:47,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:50:47,422 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:50:47,422 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:50:47,422 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:50:47,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:50:47,423 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:50:47,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:50:47,424 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:50:47,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:50:47,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:50:47,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:50:47,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:50:47,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:50:47,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:50:47,426 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:50:47,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:50:47,427 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:50:47,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:50:47,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:50:47,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:50:47,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:50:47,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:50:47,429 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:50:47,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:50:47,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:50:47,430 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:50:47,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:50:47,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:50:47,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:50:47,431 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_c0688b96-e728-4d01-b535-191283908079/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df939eacd07971dbe984826c04d07f64706b0716dba249ed14f3095e44967ff6 [2022-11-03 02:50:47,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:50:47,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:50:47,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:50:47,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:50:47,716 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:50:47,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2022-11-03 02:50:47,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/data/07915e6a8/d974774e53914327818e42a6683bc04b/FLAGbce8b88a5 [2022-11-03 02:50:48,453 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:50:48,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c [2022-11-03 02:50:48,479 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/data/07915e6a8/d974774e53914327818e42a6683bc04b/FLAGbce8b88a5 [2022-11-03 02:50:48,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/data/07915e6a8/d974774e53914327818e42a6683bc04b [2022-11-03 02:50:48,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:50:48,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:50:48,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:50:48,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:50:48,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:50:48,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:50:48" (1/1) ... [2022-11-03 02:50:48,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320cb365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:48, skipping insertion in model container [2022-11-03 02:50:48,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:50:48" (1/1) ... [2022-11-03 02:50:48,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:50:48,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:50:49,172 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_c0688b96-e728-4d01-b535-191283908079/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c[13383,13396] [2022-11-03 02:50:49,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:50:49,215 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:50:49,269 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_c0688b96-e728-4d01-b535-191283908079/sv-benchmarks/c/product-lines/minepump_spec2_product23.cil.c[13383,13396] [2022-11-03 02:50:49,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:50:49,303 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:50:49,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49 WrapperNode [2022-11-03 02:50:49,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:50:49,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:50:49,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:50:49,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:50:49,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,349 INFO L138 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 244 [2022-11-03 02:50:49,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:50:49,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:50:49,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:50:49,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:50:49,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,393 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:50:49,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:50:49,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:50:49,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:50:49,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (1/1) ... [2022-11-03 02:50:49,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:50:49,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:50:49,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:50:49,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:50:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:50:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 02:50:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 02:50:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 02:50:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 02:50:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 02:50:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 02:50:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 02:50:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 02:50:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 02:50:49,482 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 02:50:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-03 02:50:49,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-03 02:50:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 02:50:49,482 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 02:50:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:50:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 02:50:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 02:50:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:50:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:50:49,570 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:50:49,573 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:50:50,019 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:50:50,180 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:50:50,180 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:50:50,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:50:50 BoogieIcfgContainer [2022-11-03 02:50:50,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:50:50,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:50:50,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:50:50,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:50:50,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:50:48" (1/3) ... [2022-11-03 02:50:50,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce4ba9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:50:50, skipping insertion in model container [2022-11-03 02:50:50,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:50:49" (2/3) ... [2022-11-03 02:50:50,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce4ba9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:50:50, skipping insertion in model container [2022-11-03 02:50:50,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:50:50" (3/3) ... [2022-11-03 02:50:50,206 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product23.cil.c [2022-11-03 02:50:50,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:50:50,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:50:50,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:50:50,325 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;@2997f301, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:50:50,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:50:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 02:50:50,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:50:50,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:50,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:50,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1876964142, now seen corresponding path program 1 times [2022-11-03 02:50:50,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:50,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425512148] [2022-11-03 02:50:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:50,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:50,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:50:50,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:50,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425512148] [2022-11-03 02:50:50,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425512148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:50,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:50,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:50:50,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898880929] [2022-11-03 02:50:50,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:50,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:50:50,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:50:50,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:50:50,641 INFO L87 Difference]: Start difference. First operand has 67 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:50:50,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:50,710 INFO L93 Difference]: Finished difference Result 132 states and 183 transitions. [2022-11-03 02:50:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:50:50,713 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 02:50:50,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:50,721 INFO L225 Difference]: With dead ends: 132 [2022-11-03 02:50:50,721 INFO L226 Difference]: Without dead ends: 62 [2022-11-03 02:50:50,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:50:50,737 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:50,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:50:50,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-03 02:50:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-03 02:50:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-03 02:50:50,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2022-11-03 02:50:50,800 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 17 [2022-11-03 02:50:50,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:50,801 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2022-11-03 02:50:50,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:50:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2022-11-03 02:50:50,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:50:50,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:50,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:50,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:50:50,809 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:50,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:50,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1357975789, now seen corresponding path program 1 times [2022-11-03 02:50:50,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:50,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266986982] [2022-11-03 02:50:50,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:50,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:50:50,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:50,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266986982] [2022-11-03 02:50:50,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266986982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:50,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:50,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:50:50,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026722711] [2022-11-03 02:50:50,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:50,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:50:50,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:50,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:50:50,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:50,973 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:50:51,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:51,021 INFO L93 Difference]: Finished difference Result 96 states and 126 transitions. [2022-11-03 02:50:51,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:50:51,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 02:50:51,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:51,023 INFO L225 Difference]: With dead ends: 96 [2022-11-03 02:50:51,024 INFO L226 Difference]: Without dead ends: 54 [2022-11-03 02:50:51,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:51,026 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 14 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:51,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 99 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:50:51,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-03 02:50:51,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-03 02:50:51,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-03 02:50:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2022-11-03 02:50:51,036 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 18 [2022-11-03 02:50:51,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:51,037 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2022-11-03 02:50:51,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:50:51,037 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2022-11-03 02:50:51,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:50:51,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:51,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:51,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:50:51,039 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:51,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:51,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1099367425, now seen corresponding path program 1 times [2022-11-03 02:50:51,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:51,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335870674] [2022-11-03 02:50:51,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:51,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:50:51,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:51,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335870674] [2022-11-03 02:50:51,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335870674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:51,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:51,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:50:51,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183904911] [2022-11-03 02:50:51,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:51,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:50:51,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:51,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:50:51,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:51,207 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:50:51,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:51,351 INFO L93 Difference]: Finished difference Result 158 states and 210 transitions. [2022-11-03 02:50:51,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:50:51,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-03 02:50:51,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:51,354 INFO L225 Difference]: With dead ends: 158 [2022-11-03 02:50:51,354 INFO L226 Difference]: Without dead ends: 106 [2022-11-03 02:50:51,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:51,357 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 58 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:51,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 134 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:50:51,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-03 02:50:51,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2022-11-03 02:50:51,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 64 states have (on average 1.390625) internal successors, (89), 79 states have internal predecessors, (89), 24 states have call successors, (24), 14 states have call predecessors, (24), 14 states have return successors, (24), 15 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-03 02:50:51,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 137 transitions. [2022-11-03 02:50:51,378 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 137 transitions. Word has length 21 [2022-11-03 02:50:51,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:51,378 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 137 transitions. [2022-11-03 02:50:51,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:50:51,379 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 137 transitions. [2022-11-03 02:50:51,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:50:51,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:51,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:51,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:50:51,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:51,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:51,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1606898109, now seen corresponding path program 1 times [2022-11-03 02:50:51,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:51,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323165016] [2022-11-03 02:50:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:51,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:50:51,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:51,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323165016] [2022-11-03 02:50:51,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323165016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:51,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:51,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:50:51,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190234305] [2022-11-03 02:50:51,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:51,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:50:51,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:51,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:50:51,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:50:51,552 INFO L87 Difference]: Start difference. First operand 103 states and 137 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:50:51,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:51,779 INFO L93 Difference]: Finished difference Result 301 states and 404 transitions. [2022-11-03 02:50:51,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:50:51,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-03 02:50:51,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:51,782 INFO L225 Difference]: With dead ends: 301 [2022-11-03 02:50:51,782 INFO L226 Difference]: Without dead ends: 200 [2022-11-03 02:50:51,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 02:50:51,785 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 46 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:51,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 300 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:50:51,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-03 02:50:51,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 192. [2022-11-03 02:50:51,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 146 states have internal predecessors, (163), 46 states have call successors, (46), 26 states have call predecessors, (46), 26 states have return successors, (46), 28 states have call predecessors, (46), 46 states have call successors, (46) [2022-11-03 02:50:51,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 255 transitions. [2022-11-03 02:50:51,852 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 255 transitions. Word has length 24 [2022-11-03 02:50:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:51,852 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 255 transitions. [2022-11-03 02:50:51,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:50:51,853 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 255 transitions. [2022-11-03 02:50:51,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:50:51,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:51,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:51,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:50:51,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:51,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:51,859 INFO L85 PathProgramCache]: Analyzing trace with hash 288246390, now seen corresponding path program 1 times [2022-11-03 02:50:51,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:51,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36325511] [2022-11-03 02:50:51,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:51,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:50:52,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:52,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36325511] [2022-11-03 02:50:52,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36325511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:52,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:52,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:50:52,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816428292] [2022-11-03 02:50:52,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:52,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:50:52,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:52,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:50:52,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:52,051 INFO L87 Difference]: Start difference. First operand 192 states and 255 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:50:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:52,180 INFO L93 Difference]: Finished difference Result 293 states and 394 transitions. [2022-11-03 02:50:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:50:52,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-03 02:50:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:52,184 INFO L225 Difference]: With dead ends: 293 [2022-11-03 02:50:52,194 INFO L226 Difference]: Without dead ends: 291 [2022-11-03 02:50:52,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:50:52,196 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 46 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:52,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 124 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:50:52,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-11-03 02:50:52,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2022-11-03 02:50:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 180 states have (on average 1.3722222222222222) internal successors, (247), 221 states have internal predecessors, (247), 70 states have call successors, (70), 40 states have call predecessors, (70), 40 states have return successors, (74), 43 states have call predecessors, (74), 70 states have call successors, (74) [2022-11-03 02:50:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 391 transitions. [2022-11-03 02:50:52,265 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 391 transitions. Word has length 27 [2022-11-03 02:50:52,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:52,266 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 391 transitions. [2022-11-03 02:50:52,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 02:50:52,266 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 391 transitions. [2022-11-03 02:50:52,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 02:50:52,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:50:52,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:50:52,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:50:52,273 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:50:52,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:50:52,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2060942588, now seen corresponding path program 1 times [2022-11-03 02:50:52,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:50:52,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747867767] [2022-11-03 02:50:52,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:50:52,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:50:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:50:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:50:52,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:50:52,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747867767] [2022-11-03 02:50:52,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747867767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:50:52,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:50:52,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:50:52,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152417894] [2022-11-03 02:50:52,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:50:52,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:50:52,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:50:52,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:50:52,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:50:52,645 INFO L87 Difference]: Start difference. First operand 291 states and 391 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:50:52,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:50:52,791 INFO L93 Difference]: Finished difference Result 437 states and 581 transitions. [2022-11-03 02:50:52,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:50:52,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2022-11-03 02:50:52,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:50:52,793 INFO L225 Difference]: With dead ends: 437 [2022-11-03 02:50:52,793 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:50:52,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:50:52,796 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 41 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:50:52,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 55 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:50:52,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:50:52,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:50:52,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:50:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:50:52,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2022-11-03 02:50:52,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:50:52,799 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:50:52,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 02:50:52,800 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:50:52,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:50:52,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:50:52,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:50:52,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:50:53,555 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 729 736) the Hoare annotation is: true [2022-11-03 02:50:53,555 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 729 736) no Hoare annotation was computed. [2022-11-03 02:50:53,556 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 662 668) no Hoare annotation was computed. [2022-11-03 02:50:53,556 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 662 668) the Hoare annotation is: true [2022-11-03 02:50:53,556 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2022-11-03 02:50:53,556 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-03 02:50:53,556 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 867 896) no Hoare annotation was computed. [2022-11-03 02:50:53,556 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 867 896) the Hoare annotation is: true [2022-11-03 02:50:53,556 INFO L902 garLoopResultBuilder]: At program point L892(lines 867 896) the Hoare annotation is: true [2022-11-03 02:50:53,557 INFO L899 garLoopResultBuilder]: For program point L888(line 888) no Hoare annotation was computed. [2022-11-03 02:50:53,557 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 885) no Hoare annotation was computed. [2022-11-03 02:50:53,557 INFO L902 garLoopResultBuilder]: At program point L881-1(lines 881 885) the Hoare annotation is: true [2022-11-03 02:50:53,557 INFO L902 garLoopResultBuilder]: At program point L877-2(lines 877 891) the Hoare annotation is: true [2022-11-03 02:50:53,557 INFO L902 garLoopResultBuilder]: At program point L873(line 873) the Hoare annotation is: true [2022-11-03 02:50:53,557 INFO L899 garLoopResultBuilder]: For program point L873-1(line 873) no Hoare annotation was computed. [2022-11-03 02:50:53,557 INFO L899 garLoopResultBuilder]: For program point L642-1(lines 641 660) no Hoare annotation was computed. [2022-11-03 02:50:53,558 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 712) no Hoare annotation was computed. [2022-11-03 02:50:53,558 INFO L899 garLoopResultBuilder]: For program point L700(lines 700 717) no Hoare annotation was computed. [2022-11-03 02:50:53,558 INFO L895 garLoopResultBuilder]: At program point L742(line 742) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-03 02:50:53,559 INFO L895 garLoopResultBuilder]: At program point L742-1(line 742) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-03 02:50:53,559 INFO L895 garLoopResultBuilder]: At program point L557(line 557) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-03 02:50:53,559 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 179) no Hoare annotation was computed. [2022-11-03 02:50:53,559 INFO L895 garLoopResultBuilder]: At program point L710(line 710) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-03 02:50:53,559 INFO L895 garLoopResultBuilder]: At program point L165(lines 165 182) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)))) [2022-11-03 02:50:53,560 INFO L895 garLoopResultBuilder]: At program point L165-1(lines 157 185) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)))) [2022-11-03 02:50:53,560 INFO L895 garLoopResultBuilder]: At program point L706(line 706) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0))) [2022-11-03 02:50:53,560 INFO L895 garLoopResultBuilder]: At program point L715(line 715) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:50:53,560 INFO L895 garLoopResultBuilder]: At program point L715-1(lines 696 720) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:50:53,561 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 176) no Hoare annotation was computed. [2022-11-03 02:50:53,561 INFO L899 garLoopResultBuilder]: For program point L649-1(lines 649 655) no Hoare annotation was computed. [2022-11-03 02:50:53,561 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 638 661) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:50:53,561 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 638 661) no Hoare annotation was computed. [2022-11-03 02:50:53,561 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 557) no Hoare annotation was computed. [2022-11-03 02:50:53,561 INFO L895 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:50:53,562 INFO L899 garLoopResultBuilder]: For program point L163-1(line 163) no Hoare annotation was computed. [2022-11-03 02:50:53,562 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2022-11-03 02:50:53,562 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2022-11-03 02:50:53,562 INFO L899 garLoopResultBuilder]: For program point L576(lines 575 622) no Hoare annotation was computed. [2022-11-03 02:50:53,562 INFO L899 garLoopResultBuilder]: For program point L605(lines 605 618) no Hoare annotation was computed. [2022-11-03 02:50:53,562 INFO L895 garLoopResultBuilder]: At program point L597(line 597) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 02:50:53,563 INFO L902 garLoopResultBuilder]: At program point L626(lines 565 630) the Hoare annotation is: true [2022-11-03 02:50:53,563 INFO L899 garLoopResultBuilder]: For program point L816(lines 816 822) no Hoare annotation was computed. [2022-11-03 02:50:53,569 INFO L895 garLoopResultBuilder]: At program point L816-1(lines 816 822) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 02:50:53,571 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 591) no Hoare annotation was computed. [2022-11-03 02:50:53,571 INFO L899 garLoopResultBuilder]: For program point L585-1(lines 585 591) no Hoare annotation was computed. [2022-11-03 02:50:53,571 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 02:50:53,571 INFO L895 garLoopResultBuilder]: At program point L949(lines 949 956) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-11-03 02:50:53,572 INFO L902 garLoopResultBuilder]: At program point L949-2(lines 949 956) the Hoare annotation is: true [2022-11-03 02:50:53,572 INFO L895 garLoopResultBuilder]: At program point L623(lines 574 624) the Hoare annotation is: false [2022-11-03 02:50:53,572 INFO L899 garLoopResultBuilder]: For program point L611(lines 611 617) no Hoare annotation was computed. [2022-11-03 02:50:53,572 INFO L895 garLoopResultBuilder]: At program point L611-2(lines 605 618) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 02:50:53,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:50:53,573 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 601) no Hoare annotation was computed. [2022-11-03 02:50:53,573 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 595 601) no Hoare annotation was computed. [2022-11-03 02:50:53,574 INFO L895 garLoopResultBuilder]: At program point L818(line 818) the Hoare annotation is: false [2022-11-03 02:50:53,574 INFO L895 garLoopResultBuilder]: At program point L620(lines 575 622) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 02:50:53,574 INFO L895 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 02:50:53,575 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-03 02:50:53,575 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: true [2022-11-03 02:50:53,575 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 670 694) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:50:53,576 INFO L895 garLoopResultBuilder]: At program point L684(line 684) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:50:53,576 INFO L895 garLoopResultBuilder]: At program point L680(line 680) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:50:53,577 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 686) no Hoare annotation was computed. [2022-11-03 02:50:53,577 INFO L895 garLoopResultBuilder]: At program point L674(lines 674 691) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:50:53,580 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 670 694) no Hoare annotation was computed. [2022-11-03 02:50:53,580 INFO L895 garLoopResultBuilder]: At program point L689(line 689) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= ~methAndRunningLastTime~0 0))) [2022-11-03 02:50:53,580 INFO L899 garLoopResultBuilder]: For program point L689-1(lines 670 694) no Hoare annotation was computed. [2022-11-03 02:50:53,584 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-03 02:50:53,587 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:50:53,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:50:53 BoogieIcfgContainer [2022-11-03 02:50:53,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:50:53,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:50:53,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:50:53,615 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:50:53,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:50:50" (3/4) ... [2022-11-03 02:50:53,621 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:50:53,627 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 02:50:53,627 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 02:50:53,627 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 02:50:53,627 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 02:50:53,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 02:50:53,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 02:50:53,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 02:50:53,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-11-03 02:50:53,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2022-11-03 02:50:53,644 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-03 02:50:53,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-03 02:50:53,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:50:53,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:50:53,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:50:53,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:50:53,678 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-03 02:50:53,679 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) [2022-11-03 02:50:53,680 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methAndRunningLastTime == 0) [2022-11-03 02:50:53,681 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-11-03 02:50:53,681 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2022-11-03 02:50:53,681 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-11-03 02:50:53,682 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) [2022-11-03 02:50:53,711 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:50:53,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:50:53,712 INFO L158 Benchmark]: Toolchain (without parser) took 4994.61ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 83.1MB in the beginning and 95.8MB in the end (delta: -12.8MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-11-03 02:50:53,713 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:50:53,713 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.90ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 85.3MB in the end (delta: -2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 02:50:53,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.03ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 82.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:50:53,714 INFO L158 Benchmark]: Boogie Preprocessor took 46.41ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:50:53,714 INFO L158 Benchmark]: RCFGBuilder took 786.01ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 51.8MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-03 02:50:53,715 INFO L158 Benchmark]: TraceAbstraction took 3414.12ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 51.3MB in the beginning and 101.1MB in the end (delta: -49.8MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-11-03 02:50:53,715 INFO L158 Benchmark]: Witness Printer took 98.25ms. Allocated memory is still 165.7MB. Free memory was 101.1MB in the beginning and 95.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 02:50:53,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 64.7MB in the beginning and 64.7MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.90ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 85.3MB in the end (delta: -2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.03ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 82.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.41ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 786.01ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 51.8MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3414.12ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 51.3MB in the beginning and 101.1MB in the end (delta: -49.8MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Witness Printer took 98.25ms. Allocated memory is still 165.7MB. Free memory was 101.1MB in the beginning and 95.8MB in the end (delta: 5.2MB). 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: 557]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 205 mSDsluCounter, 784 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 493 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 255 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 371 mSDtfsCounter, 255 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 457 PreInvPairs, 494 NumberOfFragments, 307 HoareAnnotationTreeSize, 457 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 1632 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 18/18 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: 742]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 574]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 638]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 674]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0) - InvariantResult [Line: 877]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0) - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 867]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-03 02:50:53,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0688b96-e728-4d01-b535-191283908079/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