./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-sound--drivers--snd-mts64.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_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/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_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/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_521c56a3-3e10-4806-84d1-5148926f5231/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 425a3bbb125c6bdd9dab7ba3d2b6e465c36167f805fbb1bc755a03e911f07206 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:40:59,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:40:59,651 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:40:59,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:40:59,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:40:59,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:40:59,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:40:59,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:40:59,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:40:59,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:40:59,693 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:40:59,694 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:40:59,694 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:40:59,694 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:40:59,694 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:40:59,694 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:40:59,694 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:40:59,695 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:40:59,695 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:40:59,695 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:40:59,695 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:40:59,695 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:40:59,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:40:59,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:40:59,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:40:59,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:40:59,696 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:40:59,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:40:59,697 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:40:59,697 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:40:59,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:40:59,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:40:59,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:40:59,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:40:59,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:40:59,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:40:59,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:40:59,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:40:59,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:40:59,698 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:40:59,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:40:59,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:40:59,698 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:40:59,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:40:59,699 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_521c56a3-3e10-4806-84d1-5148926f5231/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 -> 425a3bbb125c6bdd9dab7ba3d2b6e465c36167f805fbb1bc755a03e911f07206 [2024-11-14 03:41:00,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:41:00,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:41:00,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:41:00,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:41:00,105 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:41:00,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-14 03:41:02,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:41:03,403 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:41:03,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i [2024-11-14 03:41:03,469 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/data/12476b5c4/eb65e07fe37c4a0296aba36cbdf51879/FLAG304b2c22d [2024-11-14 03:41:03,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/data/12476b5c4/eb65e07fe37c4a0296aba36cbdf51879 [2024-11-14 03:41:03,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:41:03,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:41:03,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:41:03,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:41:03,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:41:03,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:41:03" (1/1) ... [2024-11-14 03:41:03,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29c41bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:03, skipping insertion in model container [2024-11-14 03:41:03,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:41:03" (1/1) ... [2024-11-14 03:41:03,620 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:41:04,291 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2024-11-14 03:41:04,292 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3507-3508] [2024-11-14 03:41:04,488 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_521c56a3-3e10-4806-84d1-5148926f5231/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i[103871,103884] [2024-11-14 03:41:05,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:41:05,205 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:41:05,315 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3506] [2024-11-14 03:41:05,315 WARN L1355 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3507-3508] [2024-11-14 03:41:05,326 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_521c56a3-3e10-4806-84d1-5148926f5231/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i[103871,103884] [2024-11-14 03:41:05,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:41:05,746 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:41:05,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05 WrapperNode [2024-11-14 03:41:05,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:41:05,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:41:05,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:41:05,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:41:05,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:05,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:05,985 INFO L138 Inliner]: procedures = 158, calls = 872, calls flagged for inlining = 74, calls inlined = 62, statements flattened = 2011 [2024-11-14 03:41:05,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:41:05,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:41:05,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:41:05,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:41:05,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:05,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:06,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:06,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:06,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:06,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:06,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:06,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:06,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:41:06,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:41:06,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:41:06,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:41:06,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (1/1) ... [2024-11-14 03:41:06,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:41:06,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:41:06,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:41:06,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_521c56a3-3e10-4806-84d1-5148926f5231/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:41:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-14 03:41:06,281 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-14 03:41:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_open [2024-11-14 03:41:06,281 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_open [2024-11-14 03:41:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 03:41:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-14 03:41:06,282 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-14 03:41:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2024-11-14 03:41:06,283 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2024-11-14 03:41:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_close [2024-11-14 03:41:06,283 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_close [2024-11-14 03:41:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2024-11-14 03:41:06,283 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2024-11-14 03:41:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 03:41:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 03:41:06,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 03:41:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:41:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-14 03:41:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-14 03:41:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_command [2024-11-14 03:41:06,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_command [2024-11-14 03:41:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_info [2024-11-14 03:41:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_info [2024-11-14 03:41:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_data [2024-11-14 03:41:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_data [2024-11-14 03:41:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 03:41:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 03:41:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_remove [2024-11-14 03:41:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_remove [2024-11-14 03:41:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_get [2024-11-14 03:41:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_get [2024-11-14 03:41:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_detach [2024-11-14 03:41:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_detach [2024-11-14 03:41:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_close [2024-11-14 03:41:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_close [2024-11-14 03:41:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:41:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-14 03:41:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-14 03:41:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_init [2024-11-14 03:41:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_init [2024-11-14 03:41:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read_char [2024-11-14 03:41:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read_char [2024-11-14 03:41:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2024-11-14 03:41:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2024-11-14 03:41:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_read [2024-11-14 03:41:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_read [2024-11-14 03:41:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe_port [2024-11-14 03:41:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe_port [2024-11-14 03:41:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_open [2024-11-14 03:41:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_open [2024-11-14 03:41:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:41:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:41:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_smpte_stop [2024-11-14 03:41:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_smpte_stop [2024-11-14 03:41:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_disable_readout [2024-11-14 03:41:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_disable_readout [2024-11-14 03:41:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:41:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-14 03:41:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-14 03:41:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:41:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_ctl_smpte_time_put [2024-11-14 03:41:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_ctl_smpte_time_put [2024-11-14 03:41:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:41:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:41:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_enable_readout [2024-11-14 03:41:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_enable_readout [2024-11-14 03:41:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2024-11-14 03:41:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2024-11-14 03:41:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-14 03:41:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-14 03:41:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:41:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_write_midi [2024-11-14 03:41:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_write_midi [2024-11-14 03:41:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-14 03:41:06,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-14 03:41:06,298 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2024-11-14 03:41:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2024-11-14 03:41:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-14 03:41:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-14 03:41:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_device_ready [2024-11-14 03:41:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_device_ready [2024-11-14 03:41:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure mts64_probe [2024-11-14 03:41:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mts64_probe [2024-11-14 03:41:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:41:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2024-11-14 03:41:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2024-11-14 03:41:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 03:41:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2024-11-14 03:41:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2024-11-14 03:41:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2024-11-14 03:41:06,300 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2024-11-14 03:41:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_unregister_all [2024-11-14 03:41:06,301 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_unregister_all [2024-11-14 03:41:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_probe [2024-11-14 03:41:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_probe [2024-11-14 03:41:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2024-11-14 03:41:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2024-11-14 03:41:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_output_trigger [2024-11-14 03:41:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_output_trigger [2024-11-14 03:41:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:41:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mts64_rawmidi_input_trigger [2024-11-14 03:41:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mts64_rawmidi_input_trigger [2024-11-14 03:41:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-14 03:41:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-14 03:41:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure __snd_printk [2024-11-14 03:41:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __snd_printk [2024-11-14 03:41:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:41:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:41:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2024-11-14 03:41:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2024-11-14 03:41:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2024-11-14 03:41:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2024-11-14 03:41:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2024-11-14 03:41:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2024-11-14 03:41:06,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:41:06,998 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:41:07,210 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 03:41:13,755 INFO L? ?]: Removed 797 outVars from TransFormulas that were not future-live. [2024-11-14 03:41:13,755 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:41:14,548 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:41:14,549 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-14 03:41:14,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:41:14 BoogieIcfgContainer [2024-11-14 03:41:14,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:41:14,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:41:14,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:41:14,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:41:14,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:41:03" (1/3) ... [2024-11-14 03:41:14,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de7e197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:41:14, skipping insertion in model container [2024-11-14 03:41:14,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:41:05" (2/3) ... [2024-11-14 03:41:14,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de7e197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:41:14, skipping insertion in model container [2024-11-14 03:41:14,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:41:14" (3/3) ... [2024-11-14 03:41:14,562 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i [2024-11-14 03:41:14,582 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:41:14,585 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-mts64.ko-entry_point.cil.out.i that has 51 procedures, 619 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-14 03:41:14,694 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:41:14,709 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;@1d8b897d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:41:14,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:41:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 618 states, 388 states have (on average 1.3994845360824741) internal successors, (543), 410 states have internal predecessors, (543), 179 states have call successors, (179), 50 states have call predecessors, (179), 49 states have return successors, (167), 166 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-14 03:41:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-14 03:41:14,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:41:14,746 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:41:14,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:41:14,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:41:14,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2139557943, now seen corresponding path program 1 times [2024-11-14 03:41:14,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:41:14,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752637616] [2024-11-14 03:41:14,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:14,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:41:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:41:20,839 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:41:20,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:41:20,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752637616] [2024-11-14 03:41:20,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752637616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:41:20,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:41:20,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:41:20,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483620369] [2024-11-14 03:41:20,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:41:20,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:41:20,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:41:20,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:41:20,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:41:20,888 INFO L87 Difference]: Start difference. First operand has 618 states, 388 states have (on average 1.3994845360824741) internal successors, (543), 410 states have internal predecessors, (543), 179 states have call successors, (179), 50 states have call predecessors, (179), 49 states have return successors, (167), 166 states have call predecessors, (167), 167 states have call successors, (167) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:41:22,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:41:25,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:41:25,560 INFO L93 Difference]: Finished difference Result 1804 states and 2724 transitions. [2024-11-14 03:41:25,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:41:25,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2024-11-14 03:41:25,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:41:25,588 INFO L225 Difference]: With dead ends: 1804 [2024-11-14 03:41:25,589 INFO L226 Difference]: Without dead ends: 1157 [2024-11-14 03:41:25,607 INFO L431 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 [2024-11-14 03:41:25,611 INFO L432 NwaCegarLoop]: 980 mSDtfsCounter, 843 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:41:25,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 1740 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 223 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-14 03:41:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-11-14 03:41:25,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1154. [2024-11-14 03:41:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 741 states have (on average 1.3616734143049933) internal successors, (1009), 757 states have internal predecessors, (1009), 318 states have call successors, (318), 95 states have call predecessors, (318), 94 states have return successors, (317), 315 states have call predecessors, (317), 317 states have call successors, (317) [2024-11-14 03:41:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1644 transitions. [2024-11-14 03:41:25,813 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1644 transitions. Word has length 104 [2024-11-14 03:41:25,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:41:25,814 INFO L471 AbstractCegarLoop]: Abstraction has 1154 states and 1644 transitions. [2024-11-14 03:41:25,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:41:25,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1644 transitions. [2024-11-14 03:41:25,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-14 03:41:25,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:41:25,836 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:25,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:41:25,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:41:25,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:41:25,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2063464766, now seen corresponding path program 1 times [2024-11-14 03:41:25,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:41:25,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653234871] [2024-11-14 03:41:25,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:25,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:41:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:41:29,447 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-14 03:41:29,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:41:29,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653234871] [2024-11-14 03:41:29,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653234871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:41:29,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:41:29,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:41:29,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358705545] [2024-11-14 03:41:29,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:41:29,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:41:29,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:41:29,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:41:29,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:41:29,451 INFO L87 Difference]: Start difference. First operand 1154 states and 1644 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:41:31,511 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 03:41:33,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:41:33,680 INFO L93 Difference]: Finished difference Result 3390 states and 4820 transitions. [2024-11-14 03:41:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:41:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-11-14 03:41:33,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:41:33,703 INFO L225 Difference]: With dead ends: 3390 [2024-11-14 03:41:33,704 INFO L226 Difference]: Without dead ends: 2249 [2024-11-14 03:41:33,710 INFO L431 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 [2024-11-14 03:41:33,711 INFO L432 NwaCegarLoop]: 757 mSDtfsCounter, 811 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:41:33,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1486 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 203 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-14 03:41:33,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2024-11-14 03:41:33,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2244. [2024-11-14 03:41:33,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1440 states have (on average 1.3611111111111112) internal successors, (1960), 1474 states have internal predecessors, (1960), 615 states have call successors, (615), 189 states have call predecessors, (615), 188 states have return successors, (614), 608 states have call predecessors, (614), 614 states have call successors, (614) [2024-11-14 03:41:33,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3189 transitions. [2024-11-14 03:41:33,895 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3189 transitions. Word has length 118 [2024-11-14 03:41:33,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:41:33,895 INFO L471 AbstractCegarLoop]: Abstraction has 2244 states and 3189 transitions. [2024-11-14 03:41:33,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:41:33,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3189 transitions. [2024-11-14 03:41:33,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-14 03:41:33,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:41:33,910 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:33,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:41:33,911 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:41:33,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:41:33,915 INFO L85 PathProgramCache]: Analyzing trace with hash 359713761, now seen corresponding path program 1 times [2024-11-14 03:41:33,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:41:33,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948138410] [2024-11-14 03:41:33,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:33,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:41:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:41:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-14 03:41:37,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:41:37,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948138410] [2024-11-14 03:41:37,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948138410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:41:37,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:41:37,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:41:37,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744805754] [2024-11-14 03:41:37,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:41:37,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:41:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:41:37,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:41:37,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:41:37,789 INFO L87 Difference]: Start difference. First operand 2244 states and 3189 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:41:39,853 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 03:41:42,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:41:42,567 INFO L93 Difference]: Finished difference Result 6564 states and 9305 transitions. [2024-11-14 03:41:42,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:41:42,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-11-14 03:41:42,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:41:42,611 INFO L225 Difference]: With dead ends: 6564 [2024-11-14 03:41:42,612 INFO L226 Difference]: Without dead ends: 4333 [2024-11-14 03:41:42,626 INFO L431 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 [2024-11-14 03:41:42,629 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 781 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:41:42,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1513 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-14 03:41:42,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4333 states. [2024-11-14 03:41:43,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4333 to 4326. [2024-11-14 03:41:43,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4326 states, 2780 states have (on average 1.362589928057554) internal successors, (3788), 2850 states have internal predecessors, (3788), 1169 states have call successors, (1169), 377 states have call predecessors, (1169), 376 states have return successors, (1168), 1154 states have call predecessors, (1168), 1168 states have call successors, (1168) [2024-11-14 03:41:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 6125 transitions. [2024-11-14 03:41:43,067 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 6125 transitions. Word has length 124 [2024-11-14 03:41:43,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:41:43,068 INFO L471 AbstractCegarLoop]: Abstraction has 4326 states and 6125 transitions. [2024-11-14 03:41:43,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:41:43,068 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 6125 transitions. [2024-11-14 03:41:43,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 03:41:43,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:41:43,082 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:43,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:41:43,082 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:41:43,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:41:43,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1813860216, now seen corresponding path program 1 times [2024-11-14 03:41:43,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:41:43,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467052601] [2024-11-14 03:41:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:43,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:41:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:41:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-14 03:41:46,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:41:46,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467052601] [2024-11-14 03:41:46,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467052601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:41:46,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:41:46,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:41:46,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886645971] [2024-11-14 03:41:46,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:41:46,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:41:46,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:41:46,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:41:46,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:41:46,386 INFO L87 Difference]: Start difference. First operand 4326 states and 6125 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 03:41:48,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:41:51,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:41:51,146 INFO L93 Difference]: Finished difference Result 12347 states and 17430 transitions. [2024-11-14 03:41:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:41:51,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-14 03:41:51,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:41:51,235 INFO L225 Difference]: With dead ends: 12347 [2024-11-14 03:41:51,235 INFO L226 Difference]: Without dead ends: 8034 [2024-11-14 03:41:51,267 INFO L431 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 [2024-11-14 03:41:51,268 INFO L432 NwaCegarLoop]: 811 mSDtfsCounter, 754 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:41:51,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1546 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-14 03:41:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8034 states. [2024-11-14 03:41:51,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8034 to 8023. [2024-11-14 03:41:51,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8023 states, 5208 states have (on average 1.3673195084485408) internal successors, (7121), 5343 states have internal predecessors, (7121), 2093 states have call successors, (2093), 722 states have call predecessors, (2093), 721 states have return successors, (2092), 2063 states have call predecessors, (2092), 2092 states have call successors, (2092) [2024-11-14 03:41:52,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8023 states to 8023 states and 11306 transitions. [2024-11-14 03:41:52,022 INFO L78 Accepts]: Start accepts. Automaton has 8023 states and 11306 transitions. Word has length 128 [2024-11-14 03:41:52,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:41:52,022 INFO L471 AbstractCegarLoop]: Abstraction has 8023 states and 11306 transitions. [2024-11-14 03:41:52,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 03:41:52,023 INFO L276 IsEmpty]: Start isEmpty. Operand 8023 states and 11306 transitions. [2024-11-14 03:41:52,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-14 03:41:52,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:41:52,028 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:41:52,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:41:52,029 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:41:52,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:41:52,029 INFO L85 PathProgramCache]: Analyzing trace with hash 474363492, now seen corresponding path program 1 times [2024-11-14 03:41:52,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:41:52,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728410725] [2024-11-14 03:41:52,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:52,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:41:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:41:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-14 03:41:56,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:41:56,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728410725] [2024-11-14 03:41:56,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728410725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:41:56,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:41:56,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:41:56,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139707246] [2024-11-14 03:41:56,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:41:56,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:41:56,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:41:56,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:41:56,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:41:56,187 INFO L87 Difference]: Start difference. First operand 8023 states and 11306 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 03:41:58,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:42:00,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:00,028 INFO L93 Difference]: Finished difference Result 16033 states and 22593 transitions. [2024-11-14 03:42:00,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:00,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2024-11-14 03:42:00,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:00,128 INFO L225 Difference]: With dead ends: 16033 [2024-11-14 03:42:00,129 INFO L226 Difference]: Without dead ends: 8023 [2024-11-14 03:42:00,169 INFO L431 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 [2024-11-14 03:42:00,171 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 851 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:00,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 756 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2024-11-14 03:42:00,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8023 states. [2024-11-14 03:42:00,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8023 to 8023. [2024-11-14 03:42:00,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8023 states, 5208 states have (on average 1.364247311827957) internal successors, (7105), 5343 states have internal predecessors, (7105), 2093 states have call successors, (2093), 722 states have call predecessors, (2093), 721 states have return successors, (2092), 2063 states have call predecessors, (2092), 2092 states have call successors, (2092) [2024-11-14 03:42:00,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8023 states to 8023 states and 11290 transitions. [2024-11-14 03:42:00,994 INFO L78 Accepts]: Start accepts. Automaton has 8023 states and 11290 transitions. Word has length 130 [2024-11-14 03:42:00,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:00,996 INFO L471 AbstractCegarLoop]: Abstraction has 8023 states and 11290 transitions. [2024-11-14 03:42:00,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 03:42:00,997 INFO L276 IsEmpty]: Start isEmpty. Operand 8023 states and 11290 transitions. [2024-11-14 03:42:01,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-14 03:42:01,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:01,057 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:01,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:42:01,058 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:42:01,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:01,059 INFO L85 PathProgramCache]: Analyzing trace with hash -11908867, now seen corresponding path program 1 times [2024-11-14 03:42:01,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:01,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015994189] [2024-11-14 03:42:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:01,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2024-11-14 03:42:08,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:08,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015994189] [2024-11-14 03:42:08,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015994189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:08,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:08,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:42:08,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808098640] [2024-11-14 03:42:08,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:08,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:42:08,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:08,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:42:08,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:42:08,334 INFO L87 Difference]: Start difference. First operand 8023 states and 11290 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 4 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-14 03:42:10,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:42:12,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:42:14,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:42:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:25,039 INFO L93 Difference]: Finished difference Result 13211 states and 18466 transitions. [2024-11-14 03:42:25,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:42:25,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 4 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 232 [2024-11-14 03:42:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:25,146 INFO L225 Difference]: With dead ends: 13211 [2024-11-14 03:42:25,146 INFO L226 Difference]: Without dead ends: 13208 [2024-11-14 03:42:25,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:42:25,154 INFO L432 NwaCegarLoop]: 753 mSDtfsCounter, 951 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 429 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:25,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 1993 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1040 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2024-11-14 03:42:25,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13208 states. [2024-11-14 03:42:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13208 to 13118. [2024-11-14 03:42:26,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13118 states, 8299 states have (on average 1.3334136642969032) internal successors, (11066), 8637 states have internal predecessors, (11066), 3534 states have call successors, (3534), 1165 states have call predecessors, (3534), 1284 states have return successors, (3699), 3466 states have call predecessors, (3699), 3533 states have call successors, (3699) [2024-11-14 03:42:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13118 states to 13118 states and 18299 transitions. [2024-11-14 03:42:26,229 INFO L78 Accepts]: Start accepts. Automaton has 13118 states and 18299 transitions. Word has length 232 [2024-11-14 03:42:26,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:26,231 INFO L471 AbstractCegarLoop]: Abstraction has 13118 states and 18299 transitions. [2024-11-14 03:42:26,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 4 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-14 03:42:26,234 INFO L276 IsEmpty]: Start isEmpty. Operand 13118 states and 18299 transitions. [2024-11-14 03:42:26,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-14 03:42:26,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:26,286 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:26,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:42:26,286 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:42:26,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:26,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1823167222, now seen corresponding path program 1 times [2024-11-14 03:42:26,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:26,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268175336] [2024-11-14 03:42:26,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:26,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-14 03:42:29,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:29,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268175336] [2024-11-14 03:42:29,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268175336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:29,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:29,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:29,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592447998] [2024-11-14 03:42:29,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:29,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:29,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:29,362 INFO L87 Difference]: Start difference. First operand 13118 states and 18299 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 03:42:31,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:42:33,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:42:38,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:38,078 INFO L93 Difference]: Finished difference Result 33084 states and 46147 transitions. [2024-11-14 03:42:38,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:38,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 234 [2024-11-14 03:42:38,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:38,204 INFO L225 Difference]: With dead ends: 33084 [2024-11-14 03:42:38,204 INFO L226 Difference]: Without dead ends: 19979 [2024-11-14 03:42:38,257 INFO L431 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 [2024-11-14 03:42:38,257 INFO L432 NwaCegarLoop]: 1149 mSDtfsCounter, 809 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:38,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1883 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 258 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2024-11-14 03:42:38,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19979 states. [2024-11-14 03:42:40,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19979 to 19974. [2024-11-14 03:42:40,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19974 states, 12643 states have (on average 1.3314877797990983) internal successors, (16834), 13161 states have internal predecessors, (16834), 5370 states have call successors, (5370), 1777 states have call predecessors, (5370), 1960 states have return successors, (5619), 5266 states have call predecessors, (5619), 5369 states have call successors, (5619) [2024-11-14 03:42:40,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19974 states to 19974 states and 27823 transitions. [2024-11-14 03:42:40,217 INFO L78 Accepts]: Start accepts. Automaton has 19974 states and 27823 transitions. Word has length 234 [2024-11-14 03:42:40,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:40,218 INFO L471 AbstractCegarLoop]: Abstraction has 19974 states and 27823 transitions. [2024-11-14 03:42:40,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 03:42:40,219 INFO L276 IsEmpty]: Start isEmpty. Operand 19974 states and 27823 transitions. [2024-11-14 03:42:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-14 03:42:40,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:40,279 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:40,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:42:40,279 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:42:40,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:40,280 INFO L85 PathProgramCache]: Analyzing trace with hash 232919099, now seen corresponding path program 1 times [2024-11-14 03:42:40,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:40,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874641028] [2024-11-14 03:42:40,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:40,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-14 03:42:44,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:44,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874641028] [2024-11-14 03:42:44,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874641028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:42:44,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:42:44,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:42:44,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574107905] [2024-11-14 03:42:44,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:42:44,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:42:44,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:44,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:42:44,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:42:44,707 INFO L87 Difference]: Start difference. First operand 19974 states and 27823 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 03:42:46,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:42:48,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:42:53,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:53,296 INFO L93 Difference]: Finished difference Result 50182 states and 69897 transitions. [2024-11-14 03:42:53,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:42:53,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 240 [2024-11-14 03:42:53,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:53,540 INFO L225 Difference]: With dead ends: 50182 [2024-11-14 03:42:53,540 INFO L226 Difference]: Without dead ends: 30221 [2024-11-14 03:42:53,645 INFO L431 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 [2024-11-14 03:42:53,646 INFO L432 NwaCegarLoop]: 1105 mSDtfsCounter, 787 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:53,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1820 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 244 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2024-11-14 03:42:53,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30221 states. [2024-11-14 03:42:55,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30221 to 30212. [2024-11-14 03:42:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30212 states, 19145 states have (on average 1.3302689997388353) internal successors, (25468), 19933 states have internal predecessors, (25468), 8092 states have call successors, (8092), 2695 states have call predecessors, (8092), 2974 states have return successors, (8465), 7934 states have call predecessors, (8465), 8091 states have call successors, (8465) [2024-11-14 03:42:56,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30212 states to 30212 states and 42025 transitions. [2024-11-14 03:42:56,225 INFO L78 Accepts]: Start accepts. Automaton has 30212 states and 42025 transitions. Word has length 240 [2024-11-14 03:42:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:56,228 INFO L471 AbstractCegarLoop]: Abstraction has 30212 states and 42025 transitions. [2024-11-14 03:42:56,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 03:42:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 30212 states and 42025 transitions. [2024-11-14 03:42:56,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-14 03:42:56,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:56,304 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:56,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:42:56,304 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:42:56,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:56,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1494913305, now seen corresponding path program 1 times [2024-11-14 03:42:56,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:56,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713794566] [2024-11-14 03:42:56,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:56,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:43:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:02,525 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-14 03:43:02,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:43:02,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713794566] [2024-11-14 03:43:02,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713794566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:43:02,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:43:02,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:43:02,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690391620] [2024-11-14 03:43:02,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:43:02,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:43:02,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:43:02,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:43:02,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:43:02,532 INFO L87 Difference]: Start difference. First operand 30212 states and 42025 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 03:43:04,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:43:06,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:43:09,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:43:13,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:43:13,062 INFO L93 Difference]: Finished difference Result 60182 states and 83704 transitions. [2024-11-14 03:43:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:43:13,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 240 [2024-11-14 03:43:13,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:43:13,243 INFO L225 Difference]: With dead ends: 60182 [2024-11-14 03:43:13,243 INFO L226 Difference]: Without dead ends: 29641 [2024-11-14 03:43:13,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:43:13,359 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 0 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:43:13,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2263 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 293 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2024-11-14 03:43:13,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29641 states. [2024-11-14 03:43:15,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29641 to 29641. [2024-11-14 03:43:15,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29641 states, 18797 states have (on average 1.3306910677235728) internal successors, (25013), 19568 states have internal predecessors, (25013), 7922 states have call successors, (7922), 2642 states have call predecessors, (7922), 2921 states have return successors, (8295), 7781 states have call predecessors, (8295), 7921 states have call successors, (8295) [2024-11-14 03:43:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29641 states to 29641 states and 41230 transitions. [2024-11-14 03:43:15,358 INFO L78 Accepts]: Start accepts. Automaton has 29641 states and 41230 transitions. Word has length 240 [2024-11-14 03:43:15,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:43:15,358 INFO L471 AbstractCegarLoop]: Abstraction has 29641 states and 41230 transitions. [2024-11-14 03:43:15,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 03:43:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 29641 states and 41230 transitions. [2024-11-14 03:43:15,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-14 03:43:15,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:43:15,410 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:15,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:43:15,410 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:43:15,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:43:15,411 INFO L85 PathProgramCache]: Analyzing trace with hash -33599135, now seen corresponding path program 1 times [2024-11-14 03:43:15,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:43:15,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320376822] [2024-11-14 03:43:15,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:43:15,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:43:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-14 03:43:19,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:43:19,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320376822] [2024-11-14 03:43:19,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320376822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:43:19,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:43:19,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:43:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950147229] [2024-11-14 03:43:19,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:43:19,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:43:19,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:43:19,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:43:19,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:43:19,099 INFO L87 Difference]: Start difference. First operand 29641 states and 41230 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 03:43:21,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:43:24,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:43:24,204 INFO L93 Difference]: Finished difference Result 59450 states and 82700 transitions. [2024-11-14 03:43:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:43:24,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 242 [2024-11-14 03:43:24,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:43:24,419 INFO L225 Difference]: With dead ends: 59450 [2024-11-14 03:43:24,419 INFO L226 Difference]: Without dead ends: 29815 [2024-11-14 03:43:24,538 INFO L431 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 [2024-11-14 03:43:24,538 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 251 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:43:24,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1458 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2024-11-14 03:43:24,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29815 states. [2024-11-14 03:43:25,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29815 to 29815. [2024-11-14 03:43:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29815 states, 18929 states have (on average 1.3317132442284325) internal successors, (25208), 19701 states have internal predecessors, (25208), 7950 states have call successors, (7950), 2656 states have call predecessors, (7950), 2935 states have return successors, (8323), 7809 states have call predecessors, (8323), 7949 states have call successors, (8323) [2024-11-14 03:43:25,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29815 states to 29815 states and 41481 transitions. [2024-11-14 03:43:26,010 INFO L78 Accepts]: Start accepts. Automaton has 29815 states and 41481 transitions. Word has length 242 [2024-11-14 03:43:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:43:26,010 INFO L471 AbstractCegarLoop]: Abstraction has 29815 states and 41481 transitions. [2024-11-14 03:43:26,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 03:43:26,010 INFO L276 IsEmpty]: Start isEmpty. Operand 29815 states and 41481 transitions. [2024-11-14 03:43:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-14 03:43:26,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:43:26,048 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:26,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:43:26,048 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:43:26,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:43:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash -916513579, now seen corresponding path program 1 times [2024-11-14 03:43:26,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:43:26,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045043022] [2024-11-14 03:43:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:43:26,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:43:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:31,101 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2024-11-14 03:43:31,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:43:31,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045043022] [2024-11-14 03:43:31,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045043022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:43:31,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:43:31,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:43:31,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378246538] [2024-11-14 03:43:31,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:43:31,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:43:31,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:43:31,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:43:31,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:43:31,108 INFO L87 Difference]: Start difference. First operand 29815 states and 41481 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-14 03:43:33,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:43:33,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:43:33,972 INFO L93 Difference]: Finished difference Result 29949 states and 41677 transitions. [2024-11-14 03:43:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:43:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 269 [2024-11-14 03:43:33,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:43:34,012 INFO L225 Difference]: With dead ends: 29949 [2024-11-14 03:43:34,012 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:43:34,103 INFO L431 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 [2024-11-14 03:43:34,104 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 213 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:43:34,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 202 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2024-11-14 03:43:34,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:43:34,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:43:34,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:43:34,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:43:34,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 269 [2024-11-14 03:43:34,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:43:34,143 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:43:34,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-14 03:43:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:43:34,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:43:34,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:43:34,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:43:34,151 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:43:34,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.