./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU --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 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:13:01,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:13:01,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:13:01,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:13:01,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:13:01,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:13:01,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:13:01,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:13:01,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:13:01,748 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:13:01,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:13:01,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:13:01,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:13:01,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:13:01,753 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:13:01,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:13:01,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:13:01,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:13:01,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:13:01,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:13:01,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:13:01,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:13:01,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:13:01,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:13:01,762 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:13:01,762 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:13:01,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:13:01,763 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:13:01,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:13:01,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:13:01,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:13:01,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:13:01,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:01,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:13:01,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:13:01,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:13:01,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:13:01,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:13:01,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:13:01,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:13:01,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:13:01,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:13:01,771 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_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec [2024-10-31 22:13:02,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:13:02,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:13:02,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:13:02,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:13:02,160 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:13:02,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c Unable to find full path for "g++" [2024-10-31 22:13:04,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:13:04,848 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:13:04,853 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c [2024-10-31 22:13:04,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/data/0483718f9/d23b5b221ad54f17abd2e9857ce2c083/FLAG91fca4492 [2024-10-31 22:13:04,918 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/data/0483718f9/d23b5b221ad54f17abd2e9857ce2c083 [2024-10-31 22:13:04,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:13:04,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:13:04,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:04,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:13:04,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:13:04,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:04" (1/1) ... [2024-10-31 22:13:04,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b8f940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:04, skipping insertion in model container [2024-10-31 22:13:04,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:04" (1/1) ... [2024-10-31 22:13:05,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:13:05,759 WARN L251 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_0b6f71b0-9db7-4320-b506-0eff3714925f/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c[66231,66244] [2024-10-31 22:13:05,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:05,860 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:13:05,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-10-31 22:13:05,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] [2024-10-31 22:13:05,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] [2024-10-31 22:13:05,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] [2024-10-31 22:13:05,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] [2024-10-31 22:13:05,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] [2024-10-31 22:13:05,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] [2024-10-31 22:13:05,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] [2024-10-31 22:13:05,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] [2024-10-31 22:13:05,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] [2024-10-31 22:13:05,980 WARN L251 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_0b6f71b0-9db7-4320-b506-0eff3714925f/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c[66231,66244] [2024-10-31 22:13:05,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:06,020 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:13:06,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06 WrapperNode [2024-10-31 22:13:06,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:06,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:06,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:13:06,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:13:06,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,154 INFO L138 Inliner]: procedures = 91, calls = 334, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 845 [2024-10-31 22:13:06,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:06,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:13:06,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:13:06,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:13:06,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,177 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,212 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-10-31 22:13:06,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:13:06,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:13:06,283 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:13:06,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:13:06,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (1/1) ... [2024-10-31 22:13:06,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:06,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:06,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:13:06,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b6f71b0-9db7-4320-b506-0eff3714925f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:13:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:13:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-31 22:13:06,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-31 22:13:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-10-31 22:13:06,377 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-10-31 22:13:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-31 22:13:06,377 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-31 22:13:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-31 22:13:06,377 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-31 22:13:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-31 22:13:06,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-31 22:13:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-31 22:13:06,378 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-31 22:13:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-31 22:13:06,378 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-31 22:13:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-10-31 22:13:06,378 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-10-31 22:13:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-31 22:13:06,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-31 22:13:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-31 22:13:06,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-31 22:13:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-31 22:13:06,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-31 22:13:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-31 22:13:06,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-31 22:13:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-31 22:13:06,379 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-31 22:13:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-31 22:13:06,379 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-31 22:13:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-31 22:13:06,380 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-31 22:13:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-31 22:13:06,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-31 22:13:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-31 22:13:06,380 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-31 22:13:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:13:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:13:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:13:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:13:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:13:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:13:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 22:13:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 22:13:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 22:13:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 22:13:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 22:13:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 22:13:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-31 22:13:06,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-31 22:13:06,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-31 22:13:06,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-31 22:13:06,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-31 22:13:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-31 22:13:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-31 22:13:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-31 22:13:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-31 22:13:06,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-31 22:13:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-31 22:13:06,387 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-31 22:13:06,388 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-31 22:13:06,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-31 22:13:06,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:13:06,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:13:06,388 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-31 22:13:06,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-31 22:13:06,671 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:13:06,673 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:13:08,584 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-10-31 22:13:08,584 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:13:08,655 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:13:08,661 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:13:08,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:08 BoogieIcfgContainer [2024-10-31 22:13:08,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:13:08,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:13:08,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:13:08,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:13:08,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:13:04" (1/3) ... [2024-10-31 22:13:08,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b88a71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:08, skipping insertion in model container [2024-10-31 22:13:08,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:06" (2/3) ... [2024-10-31 22:13:08,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b88a71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:08, skipping insertion in model container [2024-10-31 22:13:08,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:08" (3/3) ... [2024-10-31 22:13:08,688 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.c [2024-10-31 22:13:08,723 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:13:08,724 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:13:08,875 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:13:08,890 INFO L333 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, 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;@ab842dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:13:08,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:13:08,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 541 states, 430 states have (on average 1.7116279069767442) internal successors, (736), 451 states have internal predecessors, (736), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2024-10-31 22:13:08,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:13:08,945 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:08,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:08,947 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:13:08,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:08,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1781440538, now seen corresponding path program 1 times [2024-10-31 22:13:08,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:08,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556065887] [2024-10-31 22:13:08,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:08,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:09,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:13:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:10,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:13:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:10,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:13:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:10,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:13:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:10,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:13:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:11,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:13:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:11,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:13:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:11,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-31 22:13:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:11,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:11,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556065887] [2024-10-31 22:13:11,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556065887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:11,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:11,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-31 22:13:11,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311961988] [2024-10-31 22:13:11,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:11,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:13:11,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:11,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:13:11,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:13:11,166 INFO L87 Difference]: Start difference. First operand has 541 states, 430 states have (on average 1.7116279069767442) internal successors, (736), 451 states have internal predecessors, (736), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:13:22,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:22,974 INFO L93 Difference]: Finished difference Result 1327 states and 2273 transitions. [2024-10-31 22:13:22,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:13:22,978 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-10-31 22:13:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:23,029 INFO L225 Difference]: With dead ends: 1327 [2024-10-31 22:13:23,029 INFO L226 Difference]: Without dead ends: 798 [2024-10-31 22:13:23,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:13:23,053 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 1410 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 5058 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 5410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 5058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:23,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 3192 Invalid, 5410 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [352 Valid, 5058 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-10-31 22:13:23,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-31 22:13:23,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 537. [2024-10-31 22:13:23,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 427 states have (on average 1.7025761124121779) internal successors, (727), 446 states have internal predecessors, (727), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (85), 82 states have call predecessors, (85), 83 states have call successors, (85) [2024-10-31 22:13:23,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 900 transitions. [2024-10-31 22:13:23,365 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 900 transitions. Word has length 74 [2024-10-31 22:13:23,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:23,366 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 900 transitions. [2024-10-31 22:13:23,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:13:23,366 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 900 transitions. [2024-10-31 22:13:23,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-31 22:13:23,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:23,374 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:23,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:13:23,375 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:13:23,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:23,376 INFO L85 PathProgramCache]: Analyzing trace with hash 786513718, now seen corresponding path program 1 times [2024-10-31 22:13:23,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:23,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825737234] [2024-10-31 22:13:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:23,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:13:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:13:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:13:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:24,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:13:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:24,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:13:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:24,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-31 22:13:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:24,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:13:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:24,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:13:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:24,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:24,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825737234] [2024-10-31 22:13:24,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825737234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:24,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:24,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-31 22:13:24,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646769426] [2024-10-31 22:13:24,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:24,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:13:24,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:24,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:13:24,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:13:24,553 INFO L87 Difference]: Start difference. First operand 537 states and 900 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8)