./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec1_product11.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_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/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_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec1_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/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_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/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 5477c3156be335e627e6d8ad4c695e912cf982226281f4316d6a1123dc83cedb --- 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 04:08:46,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:08:46,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:08:46,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:08:46,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:08:46,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:08:46,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:08:46,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:08:46,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:08:46,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:08:46,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:08:46,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:08:46,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:08:46,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:08:46,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:08:46,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:08:46,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:08:46,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:08:46,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:08:46,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:08:46,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:08:46,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:08:46,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:08:46,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:08:46,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:08:46,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:08:46,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:08:46,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:08:46,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:08:46,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:08:46,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:08:46,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:08:46,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:08:46,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:08:46,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:08:46,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:08:46,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:08:46,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:08:46,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:08:46,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:08:46,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:08:46,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:08:46,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:08:46,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:08:46,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:08:46,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:08:46,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:08:46,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:08:46,333 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:08:46,334 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:08:46,334 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:08:46,334 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:08:46,335 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:08:46,335 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:08:46,336 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:08:46,336 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:08:46,336 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:08:46,336 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:08:46,337 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:08:46,337 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:08:46,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:08:46,338 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:08:46,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:08:46,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:08:46,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:08:46,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:08:46,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:08:46,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:08:46,341 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:08:46,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:08:46,341 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:08:46,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:08:46,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:08:46,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:08:46,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:08:46,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:08:46,343 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:08:46,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:08:46,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:08:46,344 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:08:46,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:08:46,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:08:46,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:08:46,344 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_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5477c3156be335e627e6d8ad4c695e912cf982226281f4316d6a1123dc83cedb [2022-11-03 04:08:46,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:08:46,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:08:46,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:08:46,730 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:08:46,731 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:08:46,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/elevator_spec1_product11.cil.c [2022-11-03 04:08:46,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/data/ed5cdc65e/57300323f03b423fbbfae55a5dd38913/FLAG1a5a8d298 [2022-11-03 04:08:47,610 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:08:47,611 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/sv-benchmarks/c/product-lines/elevator_spec1_product11.cil.c [2022-11-03 04:08:47,640 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/data/ed5cdc65e/57300323f03b423fbbfae55a5dd38913/FLAG1a5a8d298 [2022-11-03 04:08:47,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/data/ed5cdc65e/57300323f03b423fbbfae55a5dd38913 [2022-11-03 04:08:47,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:08:47,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:08:47,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:08:47,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:08:47,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:08:47,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:47" (1/1) ... [2022-11-03 04:08:47,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a93d539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:47, skipping insertion in model container [2022-11-03 04:08:47,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:47" (1/1) ... [2022-11-03 04:08:47,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:08:47,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:08:48,386 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_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/sv-benchmarks/c/product-lines/elevator_spec1_product11.cil.c[40826,40839] [2022-11-03 04:08:48,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:08:48,628 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:08:48,758 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_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/sv-benchmarks/c/product-lines/elevator_spec1_product11.cil.c[40826,40839] [2022-11-03 04:08:48,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:08:48,859 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:08:48,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48 WrapperNode [2022-11-03 04:08:48,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:08:48,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:08:48,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:08:48,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:08:48,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:48,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:48,988 INFO L138 Inliner]: procedures = 93, calls = 339, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1118 [2022-11-03 04:08:48,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:08:48,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:08:48,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:08:48,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:08:49,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:49,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:49,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:49,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:49,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:49,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:49,052 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:49,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:49,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:08:49,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:08:49,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:08:49,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:08:49,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (1/1) ... [2022-11-03 04:08:49,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:08:49,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:49,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:08:49,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:08:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2022-11-03 04:08:49,202 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2022-11-03 04:08:49,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:08:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-11-03 04:08:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-11-03 04:08:49,203 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-11-03 04:08:49,203 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-11-03 04:08:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-11-03 04:08:49,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-11-03 04:08:49,204 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-11-03 04:08:49,204 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-11-03 04:08:49,205 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-11-03 04:08:49,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-11-03 04:08:49,205 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 04:08:49,205 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 04:08:49,206 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 04:08:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 04:08:49,206 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-11-03 04:08:49,206 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-11-03 04:08:49,206 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-11-03 04:08:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-11-03 04:08:49,207 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-11-03 04:08:49,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-11-03 04:08:49,207 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-11-03 04:08:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-11-03 04:08:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-11-03 04:08:49,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-11-03 04:08:49,208 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-11-03 04:08:49,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-11-03 04:08:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-11-03 04:08:49,209 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-11-03 04:08:49,209 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-11-03 04:08:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-11-03 04:08:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-11-03 04:08:49,210 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-11-03 04:08:49,210 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-11-03 04:08:49,211 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-11-03 04:08:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-11-03 04:08:49,211 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-11-03 04:08:49,211 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-11-03 04:08:49,211 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-11-03 04:08:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:08:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-11-03 04:08:49,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-11-03 04:08:49,212 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-11-03 04:08:49,213 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-11-03 04:08:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-11-03 04:08:49,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-11-03 04:08:49,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:08:49,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:08:49,214 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-11-03 04:08:49,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-11-03 04:08:49,429 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:08:49,432 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:08:50,920 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:08:51,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:08:51,939 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:08:51,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:08:51 BoogieIcfgContainer [2022-11-03 04:08:51,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:08:51,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:08:51,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:08:51,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:08:51,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:08:47" (1/3) ... [2022-11-03 04:08:51,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd8ec2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:08:51, skipping insertion in model container [2022-11-03 04:08:51,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:48" (2/3) ... [2022-11-03 04:08:51,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd8ec2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:08:51, skipping insertion in model container [2022-11-03 04:08:51,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:08:51" (3/3) ... [2022-11-03 04:08:51,959 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product11.cil.c [2022-11-03 04:08:51,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:08:51,983 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:08:52,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:08:52,102 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;@707aa3c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:08:52,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:08:52,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 375 states, 252 states have (on average 1.5952380952380953) internal successors, (402), 273 states have internal predecessors, (402), 97 states have call successors, (97), 24 states have call predecessors, (97), 24 states have return successors, (97), 91 states have call predecessors, (97), 97 states have call successors, (97) [2022-11-03 04:08:52,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-03 04:08:52,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:52,161 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:52,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:52,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:52,171 INFO L85 PathProgramCache]: Analyzing trace with hash 990924699, now seen corresponding path program 1 times [2022-11-03 04:08:52,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:52,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248386312] [2022-11-03 04:08:52,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:52,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:52,852 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 04:08:52,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:52,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248386312] [2022-11-03 04:08:52,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248386312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:52,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:52,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:52,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084650161] [2022-11-03 04:08:52,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:52,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:08:52,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:52,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:08:52,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:08:52,923 INFO L87 Difference]: Start difference. First operand has 375 states, 252 states have (on average 1.5952380952380953) internal successors, (402), 273 states have internal predecessors, (402), 97 states have call successors, (97), 24 states have call predecessors, (97), 24 states have return successors, (97), 91 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-03 04:08:53,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:53,166 INFO L93 Difference]: Finished difference Result 393 states and 623 transitions. [2022-11-03 04:08:53,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:08:53,169 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 88 [2022-11-03 04:08:53,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:53,200 INFO L225 Difference]: With dead ends: 393 [2022-11-03 04:08:53,200 INFO L226 Difference]: Without dead ends: 371 [2022-11-03 04:08:53,206 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 04:08:53,211 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:53,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 556 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:53,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-03 04:08:53,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2022-11-03 04:08:53,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 250 states have (on average 1.584) internal successors, (396), 269 states have internal predecessors, (396), 97 states have call successors, (97), 24 states have call predecessors, (97), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2022-11-03 04:08:53,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 585 transitions. [2022-11-03 04:08:53,317 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 585 transitions. Word has length 88 [2022-11-03 04:08:53,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:53,320 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 585 transitions. [2022-11-03 04:08:53,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-03 04:08:53,320 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 585 transitions. [2022-11-03 04:08:53,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-03 04:08:53,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:53,327 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:53,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:08:53,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:53,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:53,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1041667582, now seen corresponding path program 1 times [2022-11-03 04:08:53,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:53,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124668023] [2022-11-03 04:08:53,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:53,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 04:08:54,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:54,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124668023] [2022-11-03 04:08:54,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124668023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:54,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:54,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:08:54,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138155253] [2022-11-03 04:08:54,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:54,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:08:54,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:54,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:08:54,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:54,282 INFO L87 Difference]: Start difference. First operand 371 states and 585 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-03 04:08:57,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:57,368 INFO L93 Difference]: Finished difference Result 1130 states and 1816 transitions. [2022-11-03 04:08:57,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:57,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 89 [2022-11-03 04:08:57,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:57,386 INFO L225 Difference]: With dead ends: 1130 [2022-11-03 04:08:57,386 INFO L226 Difference]: Without dead ends: 782 [2022-11-03 04:08:57,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:08:57,401 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 1126 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 2244 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 2244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:57,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 1844 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 2244 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 04:08:57,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2022-11-03 04:08:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 733. [2022-11-03 04:08:57,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 504 states have (on average 1.5992063492063493) internal successors, (806), 537 states have internal predecessors, (806), 185 states have call successors, (185), 43 states have call predecessors, (185), 43 states have return successors, (186), 177 states have call predecessors, (186), 180 states have call successors, (186) [2022-11-03 04:08:57,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1177 transitions. [2022-11-03 04:08:57,563 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1177 transitions. Word has length 89 [2022-11-03 04:08:57,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:57,567 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 1177 transitions. [2022-11-03 04:08:57,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-03 04:08:57,568 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1177 transitions. [2022-11-03 04:08:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-03 04:08:57,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:57,582 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:57,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:08:57,583 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:57,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:57,595 INFO L85 PathProgramCache]: Analyzing trace with hash -427096989, now seen corresponding path program 1 times [2022-11-03 04:08:57,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:57,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032415131] [2022-11-03 04:08:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 04:08:58,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:58,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032415131] [2022-11-03 04:08:58,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032415131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:58,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:58,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:08:58,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179037020] [2022-11-03 04:08:58,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:58,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:08:58,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:58,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:08:58,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:08:58,212 INFO L87 Difference]: Start difference. First operand 733 states and 1177 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 04:08:58,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:58,882 INFO L93 Difference]: Finished difference Result 804 states and 1289 transitions. [2022-11-03 04:08:58,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:08:58,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 93 [2022-11-03 04:08:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:58,890 INFO L225 Difference]: With dead ends: 804 [2022-11-03 04:08:58,890 INFO L226 Difference]: Without dead ends: 789 [2022-11-03 04:08:58,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 04:08:58,892 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 677 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:58,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1464 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:08:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-03 04:08:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 737. [2022-11-03 04:08:58,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 508 states have (on average 1.594488188976378) internal successors, (810), 541 states have internal predecessors, (810), 185 states have call successors, (185), 43 states have call predecessors, (185), 43 states have return successors, (186), 177 states have call predecessors, (186), 180 states have call successors, (186) [2022-11-03 04:08:58,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1181 transitions. [2022-11-03 04:08:58,959 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1181 transitions. Word has length 93 [2022-11-03 04:08:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:58,960 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1181 transitions. [2022-11-03 04:08:58,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 04:08:58,961 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1181 transitions. [2022-11-03 04:08:58,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-03 04:08:58,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:58,964 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:58,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:08:58,965 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:58,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:58,966 INFO L85 PathProgramCache]: Analyzing trace with hash -222904570, now seen corresponding path program 1 times [2022-11-03 04:08:58,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:58,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20815394] [2022-11-03 04:08:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:58,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 04:08:59,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:59,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20815394] [2022-11-03 04:08:59,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20815394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:59,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:59,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:08:59,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131407189] [2022-11-03 04:08:59,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:59,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:08:59,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:59,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:08:59,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:59,453 INFO L87 Difference]: Start difference. First operand 737 states and 1181 transitions. Second operand has 5 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-03 04:08:59,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:59,651 INFO L93 Difference]: Finished difference Result 756 states and 1205 transitions. [2022-11-03 04:08:59,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:08:59,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) Word has length 98 [2022-11-03 04:08:59,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:59,660 INFO L225 Difference]: With dead ends: 756 [2022-11-03 04:08:59,664 INFO L226 Difference]: Without dead ends: 741 [2022-11-03 04:08:59,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:08:59,674 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 30 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:59,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2182 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:59,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2022-11-03 04:08:59,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 737. [2022-11-03 04:08:59,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 508 states have (on average 1.5905511811023623) internal successors, (808), 541 states have internal predecessors, (808), 185 states have call successors, (185), 43 states have call predecessors, (185), 43 states have return successors, (186), 177 states have call predecessors, (186), 180 states have call successors, (186) [2022-11-03 04:08:59,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1179 transitions. [2022-11-03 04:08:59,747 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1179 transitions. Word has length 98 [2022-11-03 04:08:59,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:59,755 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1179 transitions. [2022-11-03 04:08:59,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-03 04:08:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1179 transitions. [2022-11-03 04:08:59,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 04:08:59,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:59,762 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:59,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:08:59,762 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:59,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:59,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1031691049, now seen corresponding path program 1 times [2022-11-03 04:08:59,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:59,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800657467] [2022-11-03 04:08:59,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:59,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 04:09:05,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:05,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800657467] [2022-11-03 04:09:05,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800657467] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:05,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936038476] [2022-11-03 04:09:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:05,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:05,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:05,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:05,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:09:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:06,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 1840 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:09:06,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:06,133 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 04:09:06,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:09:06,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936038476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:06,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 04:09:06,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [27] total 29 [2022-11-03 04:09:06,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218507223] [2022-11-03 04:09:06,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:06,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:09:06,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:06,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:09:06,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-11-03 04:09:06,137 INFO L87 Difference]: Start difference. First operand 737 states and 1179 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 04:09:06,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:06,364 INFO L93 Difference]: Finished difference Result 820 states and 1303 transitions. [2022-11-03 04:09:06,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:09:06,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 105 [2022-11-03 04:09:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:06,372 INFO L225 Difference]: With dead ends: 820 [2022-11-03 04:09:06,372 INFO L226 Difference]: Without dead ends: 805 [2022-11-03 04:09:06,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=787, Unknown=0, NotChecked=0, Total=870 [2022-11-03 04:09:06,375 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 44 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:06,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1717 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:06,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2022-11-03 04:09:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 741. [2022-11-03 04:09:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 512 states have (on average 1.5859375) internal successors, (812), 545 states have internal predecessors, (812), 185 states have call successors, (185), 43 states have call predecessors, (185), 43 states have return successors, (186), 177 states have call predecessors, (186), 180 states have call successors, (186) [2022-11-03 04:09:06,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1183 transitions. [2022-11-03 04:09:06,445 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1183 transitions. Word has length 105 [2022-11-03 04:09:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:06,446 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 1183 transitions. [2022-11-03 04:09:06,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 04:09:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1183 transitions. [2022-11-03 04:09:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-03 04:09:06,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:06,450 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:06,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:06,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:06,679 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:06,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:06,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1311288589, now seen corresponding path program 1 times [2022-11-03 04:09:06,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:06,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806274468] [2022-11-03 04:09:06,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:06,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-03 04:09:08,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:08,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806274468] [2022-11-03 04:09:08,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806274468] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:08,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647885127] [2022-11-03 04:09:08,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:08,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:08,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:08,955 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:08,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:09:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:09,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 1904 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-03 04:09:09,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:11,993 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:09:11,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:14,572 WARN L234 SmtUtils]: Spent 56.80s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:11:12,988 WARN L234 SmtUtils]: Spent 57.64s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 04:11:13,967 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-03 04:11:13,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647885127] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:11:13,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2080017885] [2022-11-03 04:11:14,003 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2022-11-03 04:11:14,003 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:11:14,009 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:11:14,016 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:11:14,016 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:11:23,568 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 433 for LOIs [2022-11-03 04:11:23,656 INFO L197 IcfgInterpreter]: Interpreting procedure cleanup with input of size 580 for LOIs [2022-11-03 04:11:28,355 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 580 for LOIs [2022-11-03 04:11:39,937 INFO L197 IcfgInterpreter]: Interpreting procedure stopRequestedInDirection with input of size 443 for LOIs [2022-11-03 04:11:42,492 INFO L197 IcfgInterpreter]: Interpreting procedure isExecutiveFloorCalling with input of size 493 for LOIs [2022-11-03 04:11:44,952 INFO L197 IcfgInterpreter]: Interpreting procedure isFloorCalling with input of size 76 for LOIs [2022-11-03 04:11:44,970 INFO L197 IcfgInterpreter]: Interpreting procedure getCurrentFloorID with input of size 83 for LOIs [2022-11-03 04:11:44,990 INFO L197 IcfgInterpreter]: Interpreting procedure bigMacCall with input of size 589 for LOIs [2022-11-03 04:11:49,244 INFO L197 IcfgInterpreter]: Interpreting procedure isBlocked with input of size 28 for LOIs [2022-11-03 04:11:49,256 INFO L197 IcfgInterpreter]: Interpreting procedure continueInDirection with input of size 451 for LOIs [2022-11-03 04:11:50,300 INFO L197 IcfgInterpreter]: Interpreting procedure isTopFloor with input of size 445 for LOIs [2022-11-03 04:11:50,386 INFO L197 IcfgInterpreter]: Interpreting procedure angelinaCall with input of size 552 for LOIs [2022-11-03 04:11:53,503 INFO L197 IcfgInterpreter]: Interpreting procedure initPersonOnFloor with input of size 825 for LOIs [2022-11-03 04:12:09,459 INFO L197 IcfgInterpreter]: Interpreting procedure getOrigin with input of size 652 for LOIs [2022-11-03 04:12:10,040 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:12:18,038 WARN L234 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 520 DAG size of output: 515 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:33,684 WARN L234 SmtUtils]: Spent 9.66s on a formula simplification. DAG size of input: 652 DAG size of output: 584 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:45,503 WARN L234 SmtUtils]: Spent 10.23s on a formula simplification. DAG size of input: 692 DAG size of output: 597 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:12:55,828 WARN L234 SmtUtils]: Spent 9.58s on a formula simplification. DAG size of input: 671 DAG size of output: 609 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:06,136 WARN L234 SmtUtils]: Spent 9.54s on a formula simplification. DAG size of input: 671 DAG size of output: 609 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:13:24,595 WARN L234 SmtUtils]: Spent 14.62s on a formula simplification. DAG size of input: 825 DAG size of output: 678 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:00,189 WARN L234 SmtUtils]: Spent 34.04s on a formula simplification. DAG size of input: 903 DAG size of output: 705 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:17,637 WARN L234 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 560 DAG size of output: 555 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:23,826 WARN L234 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 560 DAG size of output: 555 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:39,923 WARN L234 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 493 DAG size of output: 464 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:47,743 WARN L234 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 620 DAG size of output: 596 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:54,133 WARN L234 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 620 DAG size of output: 596 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:15:00,708 WARN L234 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 622 DAG size of output: 598 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:15:08,267 WARN L234 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 626 DAG size of output: 600 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:15:15,356 WARN L234 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 624 DAG size of output: 600 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:15:22,474 WARN L234 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 630 DAG size of output: 604 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:15:29,630 WARN L234 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 635 DAG size of output: 606 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:15:36,261 WARN L234 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 634 DAG size of output: 606 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:16:10,359 WARN L234 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 645 DAG size of output: 615 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:16:17,088 WARN L234 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 645 DAG size of output: 615 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:16,610 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11723#(and (= 30 (select |#length| 34)) (= (select (select |#memory_int| 23) 0) 32) (= 6 (select |#length| 18)) (= 116 (select (select |#memory_int| 7) 2)) (= (select |#valid| 30) 1) (= (select (select |#memory_int| 20) 1) 37) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= (select |#valid| 15) 1) (= ~executiveFloor~0 4) (= (select |#length| 21) 4) (= (select (select |#memory_int| 21) 1) 37) (<= 0 (+ ~currentFloorID~0 2147483648)) (= (select (select |#memory_int| 23) 1) 37) (= (select (select |#memory_int| 20) 3) 0) (= (select (select |#memory_int| 22) 3) 0) (= (select (select |#memory_int| 5) 3) 0) (= 4 (select |#length| 16)) (= 3 (select |#length| 10)) (= ~floorButtons_3~0 0) (= (select (select |#memory_int| 22) 0) 32) (= (select (select |#memory_int| 13) 3) 0) (= (select |#valid| 26) 1) (= (select |#length| 4) 10) (<= ~currentHeading~0 1) (= (select |#length| 8) 3) (= (select |#length| 6) 4) (= (select (select |#memory_int| 13) 1) 37) (= (select |#valid| 35) 1) (= (select |#valid| 9) 1) (= 30 (select |#length| 25)) (= (select (select |#memory_int| 18) 5) 0) (= (select (select |#memory_int| 20) 0) 32) (= (select (select |#memory_int| 6) 0) 91) (= (select |#valid| 11) 1) (= (select |#length| 9) 10) (= (select |#valid| 27) 1) (= (select (select |#memory_int| 8) 0) 37) (= (select |#valid| 33) 1) (= 73 (select (select |#memory_int| 12) 1)) (= (select (select |#memory_int| 22) 1) 37) (<= ~currentFloorID~0 2147483647) (= (select (select |#memory_int| 23) 2) 105) (= (select (select |#memory_int| 10) 0) 117) (= ~calls_3~0 0) (= (select (select |#memory_int| 19) 2) 105) (= (select |#length| 15) 4) (= ~calls_0~0 0) (= 31 (select |#length| 2)) (= (select (select |#memory_int| 19) 1) 37) (= ~head~0.offset 0) (= 7 (select |#length| 12)) (= (select (select |#memory_int| 22) 2) 105) (= 2 (select |#length| 1)) (= (select (select |#memory_int| 16) 2) 105) (= (select (select |#memory_int| 17) 2) 105) (= (select |#length| 19) 4) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= ~floorButtons_4~0 0) (= (select (select |#memory_int| 18) 4) 58) (= (select |#length| 35) 9) (= (select |#valid| 18) 1) (= ~calls_1~0 0) (= 91 (select (select |#memory_int| 5) 0)) (= (select |#valid| 22) 1) (= 70 (select (select |#memory_int| 18) 1)) (= 5 (select |#length| 7)) (= (select |#valid| 24) 1) (= (select (select |#memory_int| 19) 3) 0) (= 32 (select (select |#memory_int| 7) 0)) (not (= ~landingButtons_spc1_0~0 0)) (= (select (select |#memory_int| 17) 3) 0) (= (select (select |#memory_int| 5) 1) 95) (= (select |#valid| 12) 1) (= (select |#valid| 32) 1) (= ~floorButtons_2~0 0) (= (select |#valid| 28) 1) (= (select |#length| 17) 4) (= (select (select |#memory_int| 13) 2) 105) (= 112 (select (select |#memory_int| 12) 4)) (= (select |#valid| 4) 1) (= (select (select |#memory_int| 16) 1) 37) (= (select |#length| 32) 9) (= (select (select |#memory_int| 20) 2) 105) (= 112 (select (select |#memory_int| 10) 1)) (= (select (select |#memory_int| 8) 2) 0) (= (select (select |#memory_int| 21) 2) 105) (= 0 (select (select |#memory_int| 7) 4)) (= (select |#length| 13) 4) (= 5 (select |#length| 11)) (= (select (select |#memory_int| 17) 1) 37) (= (select (select |#memory_int| 6) 1) 93) (= (select |#valid| 1) 1) (= (select |#valid| 20) 1) (= (select |#length| 36) 25) (= ~floorButtons_1~0 0) (= (select |#length| 24) 2) (= (select (select |#memory_int| 12) 6) 0) (= (select |#valid| 21) 1) (= (select (select |#memory_int| 11) 0) 100) (= (select (select |#memory_int| 24) 0) 10) (= ~floorButtons_0~0 0) (= 97 (select (select |#memory_int| 7) 1)) (= (select (select |#memory_int| 15) 1) 37) (= (select |#length| 33) 25) (= (select |#length| 5) 4) (= (select |#valid| 14) 1) (= 21 (select |#length| 30)) (= 112 (select (select |#memory_int| 18) 3)) (= (select |#length| 27) 21) (= 119 (select (select |#memory_int| 11) 2)) (= (select |#valid| 0) 0) (= (select (select |#memory_int| 12) 5) 58) (= (select (select |#memory_int| 16) 0) 32) (= (select |#valid| 25) 1) (= ~head~0.base 0) (= (select (select |#memory_int| 14) 3) 0) (= (select (select |#memory_int| 23) 3) 0) (= 95 (select (select |#memory_int| 12) 3)) (= 105 (select (select |#memory_int| 14) 2)) (= (select |#valid| 2) 1) (= (select (select |#memory_int| 14) 1) 37) (= |#NULL.offset| 0) (= (select |#valid| 36) 1) (= (select (select |#memory_int| 10) 2) 0) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 11) 1) 111) (= (select |#valid| 23) 1) (= 9 (select |#length| 29)) (= 32 (select (select |#memory_int| 7) 3)) (= 4 (select |#length| 23)) (= (select (select |#memory_int| 24) 1) 0) (= (select |#length| 20) 4) (= (select (select |#memory_int| 21) 3) 0) (<= 0 ~currentHeading~0) (= 76 (select (select |#memory_int| 12) 2)) (= (select |#valid| 19) 1) (= (select (select |#memory_int| 15) 0) 32) (= 32 (select (select |#memory_int| 13) 0)) (= (select |#valid| 31) 1) (= (select |#valid| 34) 1) (= (select (select |#memory_int| 6) 3) 0) (= (select |#valid| 16) 1) (= (select (select |#memory_int| 15) 2) 105) (= 32 (select (select |#memory_int| 17) 0)) (= (select |#valid| 6) 1) (= (select (select |#memory_int| 15) 3) 0) (= (select (select |#memory_int| 1) 1) 0) (= 30 (select |#length| 28)) (= (select (select |#memory_int| 5) 2) 93) (= (select (select |#memory_int| 14) 0) 32) (= ~calls_2~0 0) (= ~calls_4~0 0) (= 30 (select |#length| 31)) (= (select |#valid| 29) 1) (= (select (select |#memory_int| 6) 2) 32) (= 32 (select (select |#memory_int| 12) 0)) (= (select |#valid| 17) 1) (= (select (select |#memory_int| 16) 3) 0) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select (select |#memory_int| 11) 4) 0) (= 32 (select (select |#memory_int| 19) 0)) (= (select (select |#memory_int| 18) 2) 95) (= 4 (select |#length| 14)) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 12) (= (select |#length| 22) 4) (= 9 (select |#length| 26)) (= |#NULL.base| 0) (= 32 (select (select |#memory_int| 18) 0)) (= (select (select |#memory_int| 8) 1) 105) (= (select (select |#memory_int| 11) 3) 110) (= 32 (select (select |#memory_int| 21) 0)))' at error location [2022-11-03 04:17:16,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:17:16,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:17:16,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 23, 20] total 54 [2022-11-03 04:17:16,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969843855] [2022-11-03 04:17:16,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:17:16,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-03 04:17:16,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:17:16,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-03 04:17:16,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1764, Invalid=17418, Unknown=0, NotChecked=0, Total=19182 [2022-11-03 04:17:16,617 INFO L87 Difference]: Start difference. First operand 741 states and 1183 transitions. Second operand has 54 states, 39 states have (on average 4.384615384615385) internal successors, (171), 41 states have internal predecessors, (171), 19 states have call successors, (57), 9 states have call predecessors, (57), 24 states have return successors, (58), 25 states have call predecessors, (58), 18 states have call successors, (58) [2022-11-03 04:18:05,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:18:05,721 INFO L93 Difference]: Finished difference Result 5156 states and 8360 transitions. [2022-11-03 04:18:05,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2022-11-03 04:18:05,722 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 39 states have (on average 4.384615384615385) internal successors, (171), 41 states have internal predecessors, (171), 19 states have call successors, (57), 9 states have call predecessors, (57), 24 states have return successors, (58), 25 states have call predecessors, (58), 18 states have call successors, (58) Word has length 128 [2022-11-03 04:18:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:18:05,752 INFO L225 Difference]: With dead ends: 5156 [2022-11-03 04:18:05,752 INFO L226 Difference]: Without dead ends: 4444 [2022-11-03 04:18:05,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 288 SyntacticMatches, 4 SemanticMatches, 283 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32066 ImplicationChecksByTransitivity, 320.5s TimeCoverageRelationStatistics Valid=7283, Invalid=73657, Unknown=0, NotChecked=0, Total=80940 [2022-11-03 04:18:05,773 INFO L413 NwaCegarLoop]: 1788 mSDtfsCounter, 8883 mSDsluCounter, 21619 mSDsCounter, 0 mSdLazyCounter, 55339 mSolverCounterSat, 6322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8931 SdHoareTripleChecker+Valid, 22110 SdHoareTripleChecker+Invalid, 61661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 6322 IncrementalHoareTripleChecker+Valid, 55339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:18:05,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8931 Valid, 22110 Invalid, 61661 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [6322 Valid, 55339 Invalid, 0 Unknown, 0 Unchecked, 35.1s Time] [2022-11-03 04:18:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4444 states. [2022-11-03 04:18:06,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4444 to 3362. [2022-11-03 04:18:06,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 2370 states have (on average 1.5852320675105485) internal successors, (3757), 2512 states have internal predecessors, (3757), 781 states have call successors, (781), 192 states have call predecessors, (781), 210 states have return successors, (836), 754 states have call predecessors, (836), 776 states have call successors, (836) [2022-11-03 04:18:06,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 5374 transitions. [2022-11-03 04:18:06,168 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 5374 transitions. Word has length 128 [2022-11-03 04:18:06,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:18:06,170 INFO L495 AbstractCegarLoop]: Abstraction has 3362 states and 5374 transitions. [2022-11-03 04:18:06,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 39 states have (on average 4.384615384615385) internal successors, (171), 41 states have internal predecessors, (171), 19 states have call successors, (57), 9 states have call predecessors, (57), 24 states have return successors, (58), 25 states have call predecessors, (58), 18 states have call successors, (58) [2022-11-03 04:18:06,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 5374 transitions. [2022-11-03 04:18:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-03 04:18:06,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:18:06,182 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:18:06,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:18:06,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:18:06,395 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:18:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:18:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash 949206525, now seen corresponding path program 1 times [2022-11-03 04:18:06,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:18:06,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46200279] [2022-11-03 04:18:06,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:18:06,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:18:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:18:06,783 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 04:18:06,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:18:06,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46200279] [2022-11-03 04:18:06,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46200279] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:18:06,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072374111] [2022-11-03 04:18:06,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:18:06,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:18:06,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:18:06,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:18:06,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbf86e47-bb9f-42a9-b0ea-e5705e7b2ad0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:18:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:18:07,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2225 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:18:07,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:18:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 04:18:07,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:18:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 04:18:07,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072374111] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:18:07,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1409157295] [2022-11-03 04:18:07,931 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2022-11-03 04:18:07,931 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:18:07,931 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:18:07,932 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:18:07,932 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:18:15,685 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 410 for LOIs [2022-11-03 04:18:15,739 INFO L197 IcfgInterpreter]: Interpreting procedure cleanup with input of size 580 for LOIs [2022-11-03 04:18:23,751 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 681 for LOIs [2022-11-03 04:18:28,547 INFO L197 IcfgInterpreter]: Interpreting procedure stopRequestedInDirection with input of size 37 for LOIs [2022-11-03 04:18:28,642 INFO L197 IcfgInterpreter]: Interpreting procedure isExecutiveFloorCalling with input of size 24 for LOIs [2022-11-03 04:18:28,666 INFO L197 IcfgInterpreter]: Interpreting procedure isFloorCalling with input of size 49 for LOIs [2022-11-03 04:18:28,678 INFO L197 IcfgInterpreter]: Interpreting procedure getCurrentFloorID with input of size 48 for LOIs [2022-11-03 04:18:28,686 INFO L197 IcfgInterpreter]: Interpreting procedure bigMacCall with input of size 589 for LOIs [2022-11-03 04:18:32,019 INFO L197 IcfgInterpreter]: Interpreting procedure isBlocked with input of size 24 for LOIs [2022-11-03 04:18:32,021 INFO L197 IcfgInterpreter]: Interpreting procedure continueInDirection with input of size 47 for LOIs [2022-11-03 04:18:32,080 INFO L197 IcfgInterpreter]: Interpreting procedure isTopFloor with input of size 43 for LOIs [2022-11-03 04:18:32,084 INFO L197 IcfgInterpreter]: Interpreting procedure angelinaCall with input of size 552 for LOIs [2022-11-03 04:18:34,486 INFO L197 IcfgInterpreter]: Interpreting procedure initPersonOnFloor with input of size 825 for LOIs [2022-11-03 04:19:59,548 INFO L197 IcfgInterpreter]: Interpreting procedure getOrigin with input of size 652 for LOIs [2022-11-03 04:20:00,017 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:20:17,528 WARN L234 SmtUtils]: Spent 7.88s on a formula simplification. DAG size of input: 652 DAG size of output: 584 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:20:26,523 WARN L234 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 692 DAG size of output: 597 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:20:34,550 WARN L234 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 671 DAG size of output: 609 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:20:42,602 WARN L234 SmtUtils]: Spent 7.84s on a formula simplification. DAG size of input: 671 DAG size of output: 609 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:20:54,690 WARN L234 SmtUtils]: Spent 11.25s on a formula simplification. DAG size of input: 825 DAG size of output: 678 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)