./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--hdpvr--hdpvr.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--hdpvr--hdpvr.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 28cee9ba0508edd93029c4ac22e688d6ef34318badd23315e72f8660dad50f96 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:51:03,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:51:03,768 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:51:03,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:51:03,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:51:03,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:51:03,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:51:03,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:51:03,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:51:03,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:51:03,798 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:51:03,798 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:51:03,798 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:51:03,799 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:51:03,799 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:51:03,799 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:51:03,799 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:51:03,799 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:51:03,799 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:51:03,800 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:51:03,800 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:51:03,800 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:51:03,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:51:03,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:51:03,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:51:03,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:51:03,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:51:03,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:51:03,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:51:03,801 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:51:03,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:51:03,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:51:03,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:51:03,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:51:03,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:51:03,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:51:03,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:51:03,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:51:03,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:51:03,806 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:51:03,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:51:03,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:51:03,806 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:51:03,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:51:03,806 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 28cee9ba0508edd93029c4ac22e688d6ef34318badd23315e72f8660dad50f96 [2024-11-14 04:51:04,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:51:04,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:51:04,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:51:04,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:51:04,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:51:04,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--hdpvr--hdpvr.ko-entry_point.cil.out.i Unable to find full path for "g++" Unable to find full path for "g++" [2024-11-14 04:51:07,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:51:08,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:51:08,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--hdpvr--hdpvr.ko-entry_point.cil.out.i [2024-11-14 04:51:08,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/data/b2f1156d8/1b1c60d5d72a4336923578592ab3be0e/FLAG2932d7b08 [2024-11-14 04:51:08,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/data/b2f1156d8/1b1c60d5d72a4336923578592ab3be0e [2024-11-14 04:51:08,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:51:08,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:51:08,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:51:08,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:51:08,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:51:08,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:51:08" (1/1) ... [2024-11-14 04:51:08,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a942765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:08, skipping insertion in model container [2024-11-14 04:51:08,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:51:08" (1/1) ... [2024-11-14 04:51:08,327 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:51:09,020 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4023] [2024-11-14 04:51:11,043 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_08607e12-a4e0-490b-8d75-897f8feaa789/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--hdpvr--hdpvr.ko-entry_point.cil.out.i[321780,321793] [2024-11-14 04:51:11,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:51:11,570 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:51:11,755 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4023] [2024-11-14 04:51:11,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [5861] [2024-11-14 04:51:11,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [5872-5873] [2024-11-14 04:51:11,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [5876-5877] [2024-11-14 04:51:11,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [5880-5881] [2024-11-14 04:51:11,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [5884-5885] [2024-11-14 04:51:12,296 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_08607e12-a4e0-490b-8d75-897f8feaa789/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--hdpvr--hdpvr.ko-entry_point.cil.out.i[321780,321793] [2024-11-14 04:51:12,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:51:12,597 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:51:12,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12 WrapperNode [2024-11-14 04:51:12,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:51:12,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:51:12,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:51:12,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:51:12,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:12,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:14,729 INFO L138 Inliner]: procedures = 424, calls = 5743, calls flagged for inlining = 185, calls inlined = 176, statements flattened = 11432 [2024-11-14 04:51:14,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:51:14,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:51:14,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:51:14,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:51:14,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:14,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:15,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:15,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:17,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:18,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:18,104 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:18,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:18,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:51:18,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:51:18,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:51:18,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:51:18,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (1/1) ... [2024-11-14 04:51:18,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:51:18,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:51:18,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:51:18,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08607e12-a4e0-490b-8d75-897f8feaa789/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:51:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure list_size [2024-11-14 04:51:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure list_size [2024-11-14 04:51:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 04:51:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 04:51:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 04:51:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 04:51:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_free_buffers [2024-11-14 04:51:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_free_buffers [2024-11-14 04:51:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2024-11-14 04:51:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2024-11-14 04:51:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2024-11-14 04:51:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2024-11-14 04:51:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_set_audio [2024-11-14 04:51:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_set_audio [2024-11-14 04:51:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_config_call [2024-11-14 04:51:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_config_call [2024-11-14 04:51:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2024-11-14 04:51:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2024-11-14 04:51:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2024-11-14 04:51:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2024-11-14 04:51:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure get_video_info [2024-11-14 04:51:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure get_video_info [2024-11-14 04:51:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2024-11-14 04:51:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2024-11-14 04:51:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_device [2024-11-14 04:51:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_device [2024-11-14 04:51:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_get_next_buffer [2024-11-14 04:51:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_get_next_buffer [2024-11-14 04:51:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2024-11-14 04:51:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2024-11-14 04:51:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:51:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_poll [2024-11-14 04:51:18,379 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_poll [2024-11-14 04:51:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-14 04:51:18,382 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-14 04:51:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2024-11-14 04:51:18,382 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2024-11-14 04:51:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 04:51:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-14 04:51:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-14 04:51:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2024-11-14 04:51:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2024-11-14 04:51:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 04:51:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:51:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-14 04:51:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-14 04:51:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_i2c_write [2024-11-14 04:51:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_i2c_write [2024-11-14 04:51:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2024-11-14 04:51:18,383 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2024-11-14 04:51:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2024-11-14 04:51:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-14 04:51:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_delete [2024-11-14 04:51:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_delete [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2024-11-14 04:51:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-14 04:51:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_stop_streaming [2024-11-14 04:51:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_stop_streaming [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-11-14 04:51:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-11-14 04:51:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-14 04:51:18,384 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-14 04:51:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_cancel_queue [2024-11-14 04:51:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_cancel_queue [2024-11-14 04:51:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2024-11-14 04:51:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2024-11-14 04:51:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-11-14 04:51:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-11-14 04:51:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2024-11-14 04:51:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2024-11-14 04:51:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:51:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:51:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_start_streaming [2024-11-14 04:51:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_start_streaming [2024-11-14 04:51:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_i2c_read [2024-11-14 04:51:18,385 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_i2c_read [2024-11-14 04:51:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-14 04:51:18,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-14 04:51:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-14 04:51:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-14 04:51:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 04:51:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 04:51:18,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 04:51:18,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 04:51:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2024-11-14 04:51:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2024-11-14 04:51:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-14 04:51:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-14 04:51:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-14 04:51:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-14 04:51:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 04:51:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 04:51:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:51:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:51:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-14 04:51:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-14 04:51:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2024-11-14 04:51:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2024-11-14 04:51:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:51:18,391 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-14 04:51:18,391 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-14 04:51:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:51:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2024-11-14 04:51:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2024-11-14 04:51:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_io_mutex_of_hdpvr_device [2024-11-14 04:51:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_io_mutex_of_hdpvr_device [2024-11-14 04:51:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-14 04:51:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-14 04:51:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 04:51:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 04:51:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 04:51:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2024-11-14 04:51:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2024-11-14 04:51:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-14 04:51:18,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-14 04:51:18,392 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-14 04:51:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-14 04:51:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-14 04:51:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-14 04:51:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2024-11-14 04:51:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2024-11-14 04:51:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2024-11-14 04:51:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2024-11-14 04:51:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-14 04:51:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-14 04:51:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i2c_mutex_of_hdpvr_device [2024-11-14 04:51:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i2c_mutex_of_hdpvr_device [2024-11-14 04:51:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_set_bitrate [2024-11-14 04:51:18,393 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_set_bitrate [2024-11-14 04:51:18,393 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-14 04:51:18,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-14 04:51:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_io_mutex_of_hdpvr_device [2024-11-14 04:51:18,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_io_mutex_of_hdpvr_device [2024-11-14 04:51:18,396 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_free_queue [2024-11-14 04:51:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_free_queue [2024-11-14 04:51:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-14 04:51:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-14 04:51:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:51:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure hdpvr_transmit_buffers [2024-11-14 04:51:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure hdpvr_transmit_buffers [2024-11-14 04:51:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2024-11-14 04:51:18,397 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2024-11-14 04:51:18,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-14 04:51:18,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-14 04:51:18,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i2c_mutex_of_hdpvr_device [2024-11-14 04:51:18,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i2c_mutex_of_hdpvr_device [2024-11-14 04:51:18,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_usbc_mutex_of_hdpvr_device [2024-11-14 04:51:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_usbc_mutex_of_hdpvr_device [2024-11-14 04:51:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-14 04:51:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-14 04:51:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_usbc_mutex_of_hdpvr_device [2024-11-14 04:51:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_usbc_mutex_of_hdpvr_device [2024-11-14 04:51:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2024-11-14 04:51:18,402 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2024-11-14 04:51:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:51:19,867 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:51:19,872 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:51:20,221 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 04:52:16,340 INFO L? ?]: Removed 2246 outVars from TransFormulas that were not future-live. [2024-11-14 04:52:16,340 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:52:19,219 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:52:19,219 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 04:52:19,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:52:19 BoogieIcfgContainer [2024-11-14 04:52:19,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:52:19,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:52:19,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:52:19,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:52:19,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:51:08" (1/3) ... [2024-11-14 04:52:19,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5e0072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:52:19, skipping insertion in model container [2024-11-14 04:52:19,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:51:12" (2/3) ... [2024-11-14 04:52:19,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5e0072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:52:19, skipping insertion in model container [2024-11-14 04:52:19,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:52:19" (3/3) ... [2024-11-14 04:52:19,236 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--hdpvr--hdpvr.ko-entry_point.cil.out.i [2024-11-14 04:52:19,257 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:52:19,262 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--hdpvr--hdpvr.ko-entry_point.cil.out.i that has 74 procedures, 1377 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-14 04:52:19,373 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:52:19,392 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=FINITE_AUTOMATA, 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;@65a4b7ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:52:19,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:52:19,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 1376 states, 832 states have (on average 1.3485576923076923) internal successors, (1122), 867 states have internal predecessors, (1122), 470 states have call successors, (470), 73 states have call predecessors, (470), 72 states have return successors, (462), 462 states have call predecessors, (462), 462 states have call successors, (462) [2024-11-14 04:52:19,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 04:52:19,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:52:19,417 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] [2024-11-14 04:52:19,418 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:52:19,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:52:19,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1654887590, now seen corresponding path program 1 times [2024-11-14 04:52:19,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:52:19,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391989908] [2024-11-14 04:52:19,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:52:19,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:55:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:55:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:55:56,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:55:56,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391989908] [2024-11-14 04:55:56,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391989908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:55:56,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:55:56,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:55:56,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889783468] [2024-11-14 04:55:56,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:55:56,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:55:56,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:55:56,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:55:56,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:55:56,806 INFO L87 Difference]: Start difference. First operand has 1376 states, 832 states have (on average 1.3485576923076923) internal successors, (1122), 867 states have internal predecessors, (1122), 470 states have call successors, (470), 73 states have call predecessors, (470), 72 states have return successors, (462), 462 states have call predecessors, (462), 462 states have call successors, (462) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:55:59,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:03,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:07,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:11,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:14,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:16,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:19,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:21,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:24,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:26,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:28,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:31,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:33,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:34,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:36,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:38,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:41,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:43,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:56:43,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:56:43,322 INFO L93 Difference]: Finished difference Result 4072 states and 6283 transitions. [2024-11-14 04:56:43,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:56:43,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-14 04:56:43,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:56:43,369 INFO L225 Difference]: With dead ends: 4072 [2024-11-14 04:56:43,370 INFO L226 Difference]: Without dead ends: 2678 [2024-11-14 04:56:43,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:56:43,396 INFO L432 NwaCegarLoop]: 1912 mSDtfsCounter, 1953 mSDsluCounter, 1850 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 2 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:56:43,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 3762 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 359 Invalid, 16 Unknown, 0 Unchecked, 46.2s Time] [2024-11-14 04:56:43,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2024-11-14 04:56:43,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2654. [2024-11-14 04:56:43,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 1611 states have (on average 1.329608938547486) internal successors, (2142), 1650 states have internal predecessors, (2142), 900 states have call successors, (900), 143 states have call predecessors, (900), 142 states have return successors, (887), 886 states have call predecessors, (887), 887 states have call successors, (887) [2024-11-14 04:56:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 3929 transitions. [2024-11-14 04:56:43,764 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 3929 transitions. Word has length 27 [2024-11-14 04:56:43,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:56:43,765 INFO L471 AbstractCegarLoop]: Abstraction has 2654 states and 3929 transitions. [2024-11-14 04:56:43,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:56:43,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 3929 transitions. [2024-11-14 04:56:43,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 04:56:43,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:56:43,770 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] [2024-11-14 04:56:43,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:56:43,770 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:56:43,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:56:43,771 INFO L85 PathProgramCache]: Analyzing trace with hash -13987898, now seen corresponding path program 1 times [2024-11-14 04:56:43,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:56:43,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790765708] [2024-11-14 04:56:43,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:56:43,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:59:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:59:57,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:59:57,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:59:57,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790765708] [2024-11-14 04:59:57,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790765708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:59:57,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:59:57,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:59:57,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930285607] [2024-11-14 04:59:57,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:59:57,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:59:57,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:59:57,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:59:57,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:59:57,533 INFO L87 Difference]: Start difference. First operand 2654 states and 3929 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:59:59,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:02,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:12,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:15,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:18,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:20,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:22,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:24,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:27,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:30,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:32,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:36,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:38,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:40,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:42,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:44,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:46,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:00:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:46,983 INFO L93 Difference]: Finished difference Result 7898 states and 11691 transitions. [2024-11-14 05:00:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:00:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-11-14 05:00:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:47,031 INFO L225 Difference]: With dead ends: 7898 [2024-11-14 05:00:47,032 INFO L226 Difference]: Without dead ends: 5247 [2024-11-14 05:00:47,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:00:47,048 INFO L432 NwaCegarLoop]: 1966 mSDtfsCounter, 1950 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 3 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:47,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 3795 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 366 Invalid, 17 Unknown, 0 Unchecked, 49.2s Time] [2024-11-14 05:00:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5247 states. [2024-11-14 05:00:47,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5247 to 5239. [2024-11-14 05:00:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 3188 states have (on average 1.3281053952321205) internal successors, (4234), 3253 states have internal predecessors, (4234), 1766 states have call successors, (1766), 285 states have call predecessors, (1766), 284 states have return successors, (1753), 1752 states have call predecessors, (1753), 1753 states have call successors, (1753) [2024-11-14 05:00:47,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 7753 transitions. [2024-11-14 05:00:47,440 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 7753 transitions. Word has length 28 [2024-11-14 05:00:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:47,441 INFO L471 AbstractCegarLoop]: Abstraction has 5239 states and 7753 transitions. [2024-11-14 05:00:47,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 05:00:47,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 7753 transitions. [2024-11-14 05:00:47,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 05:00:47,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:47,446 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] [2024-11-14 05:00:47,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:00:47,447 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:00:47,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:47,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1735132196, now seen corresponding path program 1 times [2024-11-14 05:00:47,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:47,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65736051] [2024-11-14 05:00:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:47,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:04:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:04:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:04:24,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:04:24,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65736051] [2024-11-14 05:04:24,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65736051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:04:24,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:04:24,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:04:24,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236302449] [2024-11-14 05:04:24,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:04:24,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:04:24,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:04:24,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:04:24,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:04:24,556 INFO L87 Difference]: Start difference. First operand 5239 states and 7753 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 05:04:26,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:31,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:37,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:39,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:41,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:43,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:45,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:47,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:50,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:52,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:54,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:57,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:04:59,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:05:01,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:05:03,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:05:05,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:05:05,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:05:05,913 INFO L93 Difference]: Finished difference Result 14312 states and 21116 transitions. [2024-11-14 05:05:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:05:05,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2024-11-14 05:05:05,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:05:05,991 INFO L225 Difference]: With dead ends: 14312 [2024-11-14 05:05:05,991 INFO L226 Difference]: Without dead ends: 9076 [2024-11-14 05:05:06,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:05:06,022 INFO L432 NwaCegarLoop]: 2198 mSDtfsCounter, 1467 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 4029 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:05:06,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 4029 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 405 Invalid, 14 Unknown, 0 Unchecked, 41.1s Time] [2024-11-14 05:05:06,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9076 states. [2024-11-14 05:05:06,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9076 to 9051. [2024-11-14 05:05:06,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9051 states, 5588 states have (on average 1.3403722261989979) internal successors, (7490), 5689 states have internal predecessors, (7490), 2928 states have call successors, (2928), 535 states have call predecessors, (2928), 534 states have return successors, (2915), 2914 states have call predecessors, (2915), 2915 states have call successors, (2915) [2024-11-14 05:05:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9051 states to 9051 states and 13333 transitions. [2024-11-14 05:05:06,647 INFO L78 Accepts]: Start accepts. Automaton has 9051 states and 13333 transitions. Word has length 38 [2024-11-14 05:05:06,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:05:06,647 INFO L471 AbstractCegarLoop]: Abstraction has 9051 states and 13333 transitions. [2024-11-14 05:05:06,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 05:05:06,648 INFO L276 IsEmpty]: Start isEmpty. Operand 9051 states and 13333 transitions. [2024-11-14 05:05:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 05:05:06,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:05:06,650 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:05:06,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:05:06,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:05:06,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:05:06,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1249416356, now seen corresponding path program 1 times [2024-11-14 05:05:06,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:05:06,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273825932] [2024-11-14 05:05:06,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:06,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms