./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC --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 64bit --witnessprinter.graph.data.programhash db09076fa9a5c529090d66c116e7ec6dbccd2fd7809e50a63c87ed8084989776 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:01:00,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:01:00,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:01:00,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:01:00,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:01:00,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:01:00,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:01:00,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:01:00,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:01:00,254 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:01:00,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:01:00,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:01:00,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:01:00,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:01:00,254 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:01:00,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:01:00,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:01:00,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:01:00,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:01:00,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:01:00,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:01:00,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:01:00,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:01:00,256 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:01:00,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:01:00,256 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:01:00,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:00,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:00,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:00,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:00,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:01:00,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:01:00,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:01:00,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:01:00,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:00,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:01:00,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:01:00,257 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:01:00,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:01:00,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:01:00,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:01:00,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:01:00,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:01:00,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:01:00,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:01:00,258 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db09076fa9a5c529090d66c116e7ec6dbccd2fd7809e50a63c87ed8084989776 [2024-11-24 01:01:00,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:01:00,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:01:00,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:01:00,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:01:00,525 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:01:00,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2024-11-24 01:01:03,512 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/data/adc45b7e0/de6b090041194e2887cbcca51ab8e6ed/FLAGf2478d916 [2024-11-24 01:01:03,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:01:03,898 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2024-11-24 01:01:03,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/data/adc45b7e0/de6b090041194e2887cbcca51ab8e6ed/FLAGf2478d916 [2024-11-24 01:01:03,937 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/data/adc45b7e0/de6b090041194e2887cbcca51ab8e6ed [2024-11-24 01:01:03,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:01:03,941 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:01:03,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:03,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:01:03,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:01:03,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:03" (1/1) ... [2024-11-24 01:01:03,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f888c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:03, skipping insertion in model container [2024-11-24 01:01:03,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:01:03" (1/1) ... [2024-11-24 01:01:03,999 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:01:04,349 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1268] [2024-11-24 01:01:04,350 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1269-1270] [2024-11-24 01:01:04,456 WARN L250 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_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i[40937,40950] [2024-11-24 01:01:04,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:05,277 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:01:05,341 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1268] [2024-11-24 01:01:05,345 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1269-1270] [2024-11-24 01:01:05,360 WARN L250 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_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i[40937,40950] [2024-11-24 01:01:05,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:01:06,322 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:01:06,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06 WrapperNode [2024-11-24 01:01:06,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:01:06,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:06,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:01:06,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:01:06,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:06,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:07,910 INFO L138 Inliner]: procedures = 93, calls = 33281, calls flagged for inlining = 34, calls inlined = 31, statements flattened = 33880 [2024-11-24 01:01:07,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:01:07,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:01:07,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:01:07,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:01:07,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:07,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:08,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:08,445 INFO L175 MemorySlicer]: Split 33143 memory accesses to 8 slices as follows [2, 4, 2, 11, 269, 4, 32843, 8]. 99 percent of accesses are in the largest equivalence class. The 32774 initializations are split as follows [2, 0, 0, 0, 0, 0, 32768, 4]. The 344 writes are split as follows [0, 0, 0, 11, 268, 2, 63, 0]. [2024-11-24 01:01:08,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:08,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:09,414 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:09,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:09,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:09,543 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:09,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:09,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:01:09,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:01:09,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:01:09,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:01:09,758 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (1/1) ... [2024-11-24 01:01:09,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:01:09,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:01:09,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:01:09,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:01:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:01:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:01:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:01:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 01:01:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 01:01:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 01:01:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 01:01:09,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-24 01:01:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-24 01:01:09,835 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_device_unregister_n [2024-11-24 01:01:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_device_unregister_n [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 01:01:09,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 01:01:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:01:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:01:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:01:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:01:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:01:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:01:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:01:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:01:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 01:01:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure ff_validate [2024-11-24 01:01:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_validate [2024-11-24 01:01:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-24 01:01:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-24 01:01:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-24 01:01:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-24 01:01:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-24 01:01:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-24 01:01:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-24 01:01:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-24 01:01:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-24 01:01:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-24 01:01:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-24 01:01:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-24 01:01:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-24 01:01:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-24 01:01:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-24 01:01:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-24 01:01:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure ff_irq_request [2024-11-24 01:01:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_irq_request [2024-11-24 01:01:09,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 01:01:09,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 01:01:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure device_unregister [2024-11-24 01:01:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unregister [2024-11-24 01:01:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure ff_reprogram [2024-11-24 01:01:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_reprogram [2024-11-24 01:01:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure ff_writel [2024-11-24 01:01:09,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_writel [2024-11-24 01:01:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:01:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:01:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:01:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:01:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:01:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:01:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:01:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 01:01:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 01:01:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:01:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:01:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:01:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:01:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:01:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:01:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:01:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:01:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure ff_readl [2024-11-24 01:01:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_readl [2024-11-24 01:01:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 01:01:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 01:01:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_device_register_n [2024-11-24 01:01:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_device_register_n [2024-11-24 01:01:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2024-11-24 01:01:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2024-11-24 01:01:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-24 01:01:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-24 01:01:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2024-11-24 01:01:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2024-11-24 01:01:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:01:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:01:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:01:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:01:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:01:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:01:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:01:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:01:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:01:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:01:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure ff_dev_create [2024-11-24 01:01:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_dev_create [2024-11-24 01:01:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:01:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 01:01:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 01:01:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 01:01:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 01:01:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 01:01:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 01:01:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 01:01:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 01:01:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-24 01:01:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-24 01:01:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:01:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:01:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-24 01:01:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-24 01:01:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-11-24 01:01:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-11-24 01:01:10,234 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:01:10,236 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:01:10,287 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 01:06:41,095 INFO L? ?]: Removed 485 outVars from TransFormulas that were not future-live. [2024-11-24 01:06:41,095 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:06:41,122 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:06:41,122 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 01:06:41,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:06:41 BoogieIcfgContainer [2024-11-24 01:06:41,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:06:41,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:06:41,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:06:41,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:06:41,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:01:03" (1/3) ... [2024-11-24 01:06:41,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f38eced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:06:41, skipping insertion in model container [2024-11-24 01:06:41,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:01:06" (2/3) ... [2024-11-24 01:06:41,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f38eced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:06:41, skipping insertion in model container [2024-11-24 01:06:41,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:06:41" (3/3) ... [2024-11-24 01:06:41,137 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2024-11-24 01:06:41,154 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:06:41,156 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i that has 29 procedures, 337 locations, 1 initial locations, 17 loop locations, and 1 error locations. [2024-11-24 01:06:41,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:06:41,250 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;@285d9d76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:06:41,250 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:06:41,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 301 states, 222 states have (on average 1.3738738738738738) internal successors, (305), 230 states have internal predecessors, (305), 57 states have call successors, (57), 21 states have call predecessors, (57), 20 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 01:06:41,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-24 01:06:41,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:41,270 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:41,271 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:41,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:41,277 INFO L85 PathProgramCache]: Analyzing trace with hash 840099916, now seen corresponding path program 1 times [2024-11-24 01:06:41,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:41,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511296967] [2024-11-24 01:06:41,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:41,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:08:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:08:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 01:08:15,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:08:15,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511296967] [2024-11-24 01:08:15,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511296967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:08:15,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:08:15,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:08:15,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84922488] [2024-11-24 01:08:15,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:08:15,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:08:15,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:08:15,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:08:15,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:08:15,920 INFO L87 Difference]: Start difference. First operand has 301 states, 222 states have (on average 1.3738738738738738) internal successors, (305), 230 states have internal predecessors, (305), 57 states have call successors, (57), 21 states have call predecessors, (57), 20 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 01:08:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:08:16,180 INFO L93 Difference]: Finished difference Result 605 states and 853 transitions. [2024-11-24 01:08:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:08:16,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2024-11-24 01:08:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:08:16,194 INFO L225 Difference]: With dead ends: 605 [2024-11-24 01:08:16,194 INFO L226 Difference]: Without dead ends: 291 [2024-11-24 01:08:16,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:08:16,202 INFO L435 NwaCegarLoop]: 408 mSDtfsCounter, 6 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:08:16,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 805 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:08:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-24 01:08:16,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 284. [2024-11-24 01:08:16,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 213 states have (on average 1.3427230046948357) internal successors, (286), 214 states have internal predecessors, (286), 51 states have call successors, (51), 20 states have call predecessors, (51), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-24 01:08:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 387 transitions. [2024-11-24 01:08:16,293 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 387 transitions. Word has length 50 [2024-11-24 01:08:16,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:08:16,293 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 387 transitions. [2024-11-24 01:08:16,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-24 01:08:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 387 transitions. [2024-11-24 01:08:16,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 01:08:16,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:08:16,301 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:08:16,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:08:16,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:08:16,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:08:16,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1810271873, now seen corresponding path program 1 times [2024-11-24 01:08:16,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:08:16,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739573979] [2024-11-24 01:08:16,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:08:16,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 01:09:52,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:52,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739573979] [2024-11-24 01:09:52,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739573979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:52,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:52,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:52,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004296279] [2024-11-24 01:09:52,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:52,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:52,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:52,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:52,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:52,189 INFO L87 Difference]: Start difference. First operand 284 states and 387 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:53,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:09:53,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:53,848 INFO L93 Difference]: Finished difference Result 791 states and 1074 transitions. [2024-11-24 01:09:53,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:53,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2024-11-24 01:09:53,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:53,854 INFO L225 Difference]: With dead ends: 791 [2024-11-24 01:09:53,854 INFO L226 Difference]: Without dead ends: 522 [2024-11-24 01:09:53,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:53,857 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 333 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:53,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 741 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:09:53,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-24 01:09:53,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 519. [2024-11-24 01:09:53,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 394 states have (on average 1.350253807106599) internal successors, (532), 395 states have internal predecessors, (532), 87 states have call successors, (87), 38 states have call predecessors, (87), 37 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 01:09:53,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 705 transitions. [2024-11-24 01:09:53,898 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 705 transitions. Word has length 57 [2024-11-24 01:09:53,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:53,899 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 705 transitions. [2024-11-24 01:09:53,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-24 01:09:53,899 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 705 transitions. [2024-11-24 01:09:53,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 01:09:53,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:53,901 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:53,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:09:53,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:53,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:53,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1340197933, now seen corresponding path program 1 times [2024-11-24 01:09:53,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:53,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138436649] [2024-11-24 01:09:53,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:53,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 01:11:46,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:46,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138436649] [2024-11-24 01:11:46,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138436649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:11:46,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337665321] [2024-11-24 01:11:46,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:46,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:11:46,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:11:46,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:11:46,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:14:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:00,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 68905 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:14:00,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-24 01:14:00,719 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:14:00,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337665321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:00,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:14:00,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-24 01:14:00,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822882663] [2024-11-24 01:14:00,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:00,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:14:00,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:14:00,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:14:00,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:14:00,722 INFO L87 Difference]: Start difference. First operand 519 states and 705 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 01:14:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:00,818 INFO L93 Difference]: Finished difference Result 524 states and 711 transitions. [2024-11-24 01:14:00,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:14:00,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2024-11-24 01:14:00,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:00,825 INFO L225 Difference]: With dead ends: 524 [2024-11-24 01:14:00,825 INFO L226 Difference]: Without dead ends: 521 [2024-11-24 01:14:00,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:14:00,827 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 0 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:00,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 764 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:14:00,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-24 01:14:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2024-11-24 01:14:00,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 396 states have (on average 1.3484848484848484) internal successors, (534), 397 states have internal predecessors, (534), 87 states have call successors, (87), 38 states have call predecessors, (87), 37 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 01:14:00,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 707 transitions. [2024-11-24 01:14:00,872 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 707 transitions. Word has length 61 [2024-11-24 01:14:00,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:00,872 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 707 transitions. [2024-11-24 01:14:00,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-24 01:14:00,873 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 707 transitions. [2024-11-24 01:14:00,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 01:14:00,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:00,876 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:01,076 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forcibly destroying the process [2024-11-24 01:14:01,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:14:01,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:14:01,086 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:01,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:01,087 INFO L85 PathProgramCache]: Analyzing trace with hash -538346047, now seen corresponding path program 1 times [2024-11-24 01:14:01,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:14:01,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811708260] [2024-11-24 01:14:01,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:01,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:15:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-24 01:15:55,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:15:55,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811708260] [2024-11-24 01:15:55,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811708260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:15:55,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713279725] [2024-11-24 01:15:55,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:55,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:15:55,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:15:55,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:15:55,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fa7fb5d-2d99-4a2e-af75-3a33794c9987/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process