./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0289d2bc768d77152556c65688d1c231999d9919b651d65a3b9e8da8ee9b3f9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:11:56,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:11:56,530 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:11:56,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:11:56,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:11:56,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:11:56,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:11:56,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:11:56,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:11:56,593 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:11:56,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:11:56,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:11:56,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:11:56,596 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:11:56,597 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:11:56,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:11:56,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:11:56,598 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:11:56,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:11:56,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:11:56,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:11:56,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:11:56,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:11:56,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:11:56,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:11:56,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:11:56,602 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:11:56,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:11:56,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:11:56,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:11:56,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:11:56,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:56,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:11:56,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:11:56,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:11:56,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:11:56,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:11:56,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:11:56,608 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:11:56,608 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:11:56,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:11:56,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:11:56,610 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0289d2bc768d77152556c65688d1c231999d9919b651d65a3b9e8da8ee9b3f9 [2023-11-21 22:11:56,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:11:56,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:11:56,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:11:56,989 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:11:56,990 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:11:56,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c [2023-11-21 22:12:00,041 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:12:00,530 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:12:00,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c [2023-11-21 22:12:00,566 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/data/308b7861a/ae0e7f0c602d4394bea7f8e22597486c/FLAGc47d5c580 [2023-11-21 22:12:00,585 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/data/308b7861a/ae0e7f0c602d4394bea7f8e22597486c [2023-11-21 22:12:00,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:12:00,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:12:00,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:00,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:12:00,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:12:00,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:00" (1/1) ... [2023-11-21 22:12:00,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338684a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:00, skipping insertion in model container [2023-11-21 22:12:00,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:00" (1/1) ... [2023-11-21 22:12:00,710 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:12:01,120 WARN L240 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_ee48b20b-3578-4b53-bfc4-2791c1d10174/sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c[27271,27284] [2023-11-21 22:12:01,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:01,400 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:12:01,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-11-21 22:12:01,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [414] [2023-11-21 22:12:01,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1087] [2023-11-21 22:12:01,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1096] [2023-11-21 22:12:01,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1197] [2023-11-21 22:12:01,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1554] [2023-11-21 22:12:01,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1567] [2023-11-21 22:12:01,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1687] [2023-11-21 22:12:01,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1722] [2023-11-21 22:12:01,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [3280] [2023-11-21 22:12:01,489 WARN L240 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_ee48b20b-3578-4b53-bfc4-2791c1d10174/sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c[27271,27284] [2023-11-21 22:12:01,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:01,625 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:12:01,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01 WrapperNode [2023-11-21 22:12:01,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:01,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:01,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:12:01,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:12:01,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,716 INFO L138 Inliner]: procedures = 94, calls = 346, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 864 [2023-11-21 22:12:01,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:01,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:12:01,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:12:01,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:12:01,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,747 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,797 INFO L187 HeapSplitter]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4] [2023-11-21 22:12:01,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:12:01,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:12:01,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:12:01,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:12:01,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (1/1) ... [2023-11-21 22:12:01,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:01,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:01,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:12:01,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee48b20b-3578-4b53-bfc4-2791c1d10174/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:12:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-11-21 22:12:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-11-21 22:12:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:12:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-11-21 22:12:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-11-21 22:12:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-11-21 22:12:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-11-21 22:12:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-11-21 22:12:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-11-21 22:12:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-11-21 22:12:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-11-21 22:12:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-11-21 22:12:02,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-11-21 22:12:02,025 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-21 22:12:02,026 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-21 22:12:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-21 22:12:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-21 22:12:02,027 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-11-21 22:12:02,027 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-11-21 22:12:02,030 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-11-21 22:12:02,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-11-21 22:12:02,030 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-11-21 22:12:02,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-11-21 22:12:02,031 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-11-21 22:12:02,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-11-21 22:12:02,032 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-11-21 22:12:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-11-21 22:12:02,033 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-11-21 22:12:02,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-11-21 22:12:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-11-21 22:12:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-11-21 22:12:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-11-21 22:12:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-11-21 22:12:02,038 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-11-21 22:12:02,038 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-11-21 22:12:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-11-21 22:12:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-11-21 22:12:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-11-21 22:12:02,039 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-11-21 22:12:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:12:02,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:12:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:12:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:12:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:12:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:12:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:12:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:12:02,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 22:12:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 22:12:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 22:12:02,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 22:12:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 22:12:02,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-21 22:12:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-21 22:12:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-21 22:12:02,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-21 22:12:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-21 22:12:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-21 22:12:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-21 22:12:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-11-21 22:12:02,044 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-11-21 22:12:02,044 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-11-21 22:12:02,044 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-11-21 22:12:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-11-21 22:12:02,045 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-11-21 22:12:02,045 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-11-21 22:12:02,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-11-21 22:12:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2023-11-21 22:12:02,046 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2023-11-21 22:12:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-11-21 22:12:02,046 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-11-21 22:12:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:12:02,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:12:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-11-21 22:12:02,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-11-21 22:12:02,331 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:12:02,335 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:12:03,596 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:12:04,963 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:12:04,963 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:12:04,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:04 BoogieIcfgContainer [2023-11-21 22:12:04,965 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:12:04,968 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:12:04,968 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:12:04,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:12:04,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:12:00" (1/3) ... [2023-11-21 22:12:04,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e621a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:04, skipping insertion in model container [2023-11-21 22:12:04,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:01" (2/3) ... [2023-11-21 22:12:04,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e621a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:04, skipping insertion in model container [2023-11-21 22:12:04,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:04" (3/3) ... [2023-11-21 22:12:04,975 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product22.cil.c [2023-11-21 22:12:04,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:12:04,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:12:05,086 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:12:05,095 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4e4a956a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:12:05,095 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:12:05,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 390 states, 261 states have (on average 1.5862068965517242) internal successors, (414), 284 states have internal predecessors, (414), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (101), 94 states have call predecessors, (101), 101 states have call successors, (101) [2023-11-21 22:12:05,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-21 22:12:05,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:05,138 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:12:05,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:12:05,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2141229845, now seen corresponding path program 1 times [2023-11-21 22:12:05,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:05,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442887167] [2023-11-21 22:12:05,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:05,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:12:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:06,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:06,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:12:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:12:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:06,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:06,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:12:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 22:12:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 22:12:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:07,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:12:07,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:07,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442887167] [2023-11-21 22:12:07,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442887167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:07,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:07,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:12:07,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000229246] [2023-11-21 22:12:07,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:07,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:12:07,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:07,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:12:07,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:12:07,434 INFO L87 Difference]: Start difference. First operand has 390 states, 261 states have (on average 1.5862068965517242) internal successors, (414), 284 states have internal predecessors, (414), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (101), 94 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-21 22:12:15,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:15,255 INFO L93 Difference]: Finished difference Result 1233 states and 1994 transitions. [2023-11-21 22:12:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:12:15,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2023-11-21 22:12:15,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:15,296 INFO L225 Difference]: With dead ends: 1233 [2023-11-21 22:12:15,296 INFO L226 Difference]: Without dead ends: 860 [2023-11-21 22:12:15,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:12:15,312 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1256 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:15,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 416 Invalid, 1704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [390 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-21 22:12:15,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2023-11-21 22:12:15,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 727. [2023-11-21 22:12:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 509 states have (on average 1.6031434184675835) internal successors, (816), 539 states have internal predecessors, (816), 174 states have call successors, (174), 42 states have call predecessors, (174), 43 states have return successors, (176), 159 states have call predecessors, (176), 169 states have call successors, (176) [2023-11-21 22:12:15,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1166 transitions. [2023-11-21 22:12:15,686 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1166 transitions. Word has length 54 [2023-11-21 22:12:15,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:15,687 INFO L495 AbstractCegarLoop]: Abstraction has 727 states and 1166 transitions. [2023-11-21 22:12:15,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-21 22:12:15,688 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1166 transitions. [2023-11-21 22:12:15,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-21 22:12:15,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:15,696 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:12:15,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:12:15,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:12:15,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:15,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1342876119, now seen corresponding path program 1 times [2023-11-21 22:12:15,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:15,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054526588] [2023-11-21 22:12:15,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:15,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:12:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:12:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:12:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:12:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 22:12:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:17,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:18,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:12:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:12:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:12:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:18,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:12:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 22:12:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:18,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:12:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:18,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:12:18,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:18,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054526588] [2023-11-21 22:12:18,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054526588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:18,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:18,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-21 22:12:18,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020584198] [2023-11-21 22:12:18,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:18,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 22:12:18,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:18,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 22:12:18,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:12:18,453 INFO L87 Difference]: Start difference. First operand 727 states and 1166 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-21 22:12:31,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:31,121 INFO L93 Difference]: Finished difference Result 1892 states and 3086 transitions. [2023-11-21 22:12:31,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-21 22:12:31,123 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 86 [2023-11-21 22:12:31,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:31,144 INFO L225 Difference]: With dead ends: 1892 [2023-11-21 22:12:31,145 INFO L226 Difference]: Without dead ends: 1189 [2023-11-21 22:12:31,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=137, Invalid=565, Unknown=0, NotChecked=0, Total=702 [2023-11-21 22:12:31,156 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 1683 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 4618 mSolverCounterSat, 907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 5525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 907 IncrementalHoareTripleChecker+Valid, 4618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:31,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 2260 Invalid, 5525 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [907 Valid, 4618 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-11-21 22:12:31,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-11-21 22:12:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 925. [2023-11-21 22:12:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 648 states have (on average 1.5802469135802468) internal successors, (1024), 682 states have internal predecessors, (1024), 217 states have call successors, (217), 54 states have call predecessors, (217), 59 states have return successors, (244), 200 states have call predecessors, (244), 212 states have call successors, (244) [2023-11-21 22:12:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1485 transitions. [2023-11-21 22:12:31,702 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1485 transitions. Word has length 86 [2023-11-21 22:12:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:31,704 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1485 transitions. [2023-11-21 22:12:31,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-21 22:12:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1485 transitions. [2023-11-21 22:12:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-21 22:12:31,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:31,712 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:12:31,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:12:31,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:12:31,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:31,713 INFO L85 PathProgramCache]: Analyzing trace with hash -807679552, now seen corresponding path program 1 times [2023-11-21 22:12:31,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:31,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242550783] [2023-11-21 22:12:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:31,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:32,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:12:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:32,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:32,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:12:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:12:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:12:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-21 22:12:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:12:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:34,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:12:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:34,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 22:12:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-21 22:12:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:12:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:34,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-21 22:12:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:12:34,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:34,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242550783] [2023-11-21 22:12:34,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242550783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:34,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:34,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-21 22:12:34,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386524978] [2023-11-21 22:12:34,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:34,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:12:34,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:34,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:12:34,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:12:34,237 INFO L87 Difference]: Start difference. First operand 925 states and 1485 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-21 22:12:46,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:46,317 INFO L93 Difference]: Finished difference Result 2099 states and 3412 transitions. [2023-11-21 22:12:46,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-21 22:12:46,318 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 87 [2023-11-21 22:12:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:46,331 INFO L225 Difference]: With dead ends: 2099 [2023-11-21 22:12:46,331 INFO L226 Difference]: Without dead ends: 1199 [2023-11-21 22:12:46,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2023-11-21 22:12:46,339 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 1367 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 4204 mSolverCounterSat, 700 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 4904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 700 IncrementalHoareTripleChecker+Valid, 4204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:46,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 2112 Invalid, 4904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [700 Valid, 4204 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-21 22:12:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states.