./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje --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 4b418a847569c2fdb13e49f0158439b90c8dabf7cf2f41b74c1e9948cb252ab6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:06:54,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:06:54,151 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:06:54,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:06:54,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:06:54,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:06:54,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:06:54,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:06:54,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:06:54,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:06:54,201 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:06:54,201 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:06:54,202 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:06:54,204 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:06:54,204 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:06:54,205 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:06:54,207 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:06:54,209 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:06:54,209 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:06:54,209 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:06:54,210 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:06:54,214 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:06:54,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:06:54,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:06:54,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:06:54,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:06:54,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:06:54,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:06:54,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:06:54,218 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:06:54,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:06:54,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:06:54,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:06:54,222 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:06:54,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:06:54,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:06:54,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:06:54,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:06:54,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:06:54,224 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:06:54,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:06:54,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:06:54,226 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:06:54,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:06:54,227 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b418a847569c2fdb13e49f0158439b90c8dabf7cf2f41b74c1e9948cb252ab6 [2024-11-09 07:06:54,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:06:54,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:06:54,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:06:54,646 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:06:54,646 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:06:54,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 07:06:57,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:06:57,771 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:06:57,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2024-11-09 07:06:57,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/data/df1ddcc15/a4adb1755106430e8af9bc50d3f49b5b/FLAGc3e1e4737 [2024-11-09 07:06:57,836 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/data/df1ddcc15/a4adb1755106430e8af9bc50d3f49b5b [2024-11-09 07:06:57,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:06:57,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:06:57,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:06:57,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:06:57,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:06:57,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:57" (1/1) ... [2024-11-09 07:06:57,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d15981f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:57, skipping insertion in model container [2024-11-09 07:06:57,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:57" (1/1) ... [2024-11-09 07:06:58,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:07:00,223 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_8f961b40-661d-423b-97a0-96d90b725ea1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[235755,235768] [2024-11-09 07:07:00,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:07:00,503 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:07:01,050 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_8f961b40-661d-423b-97a0-96d90b725ea1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[235755,235768] [2024-11-09 07:07:01,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:07:01,236 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:07:01,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01 WrapperNode [2024-11-09 07:07:01,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:07:01,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:07:01,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:07:01,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:07:01,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:01,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:01,658 INFO L138 Inliner]: procedures = 223, calls = 2693, calls flagged for inlining = 70, calls inlined = 65, statements flattened = 5981 [2024-11-09 07:07:01,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:07:01,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:07:01,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:07:01,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:07:01,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:01,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:01,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:01,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:02,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:02,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:02,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:02,160 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:02,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:07:02,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:07:02,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:07:02,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:07:02,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (1/1) ... [2024-11-09 07:07:02,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:07:02,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:07:02,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:07:02,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f961b40-661d-423b-97a0-96d90b725ea1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:07:02,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-09 07:07:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-09 07:07:02,269 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_in_callback [2024-11-09 07:07:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_in_callback [2024-11-09 07:07:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-09 07:07:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-09 07:07:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 07:07:02,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:07:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 07:07:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 07:07:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 07:07:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 07:07:02,271 INFO L130 BoogieDeclarations]: Found specification of procedure ti_throttle [2024-11-09 07:07:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_throttle [2024-11-09 07:07:02,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_tiocmiwait [2024-11-09 07:07:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_tiocmiwait [2024-11-09 07:07:02,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 07:07:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 07:07:02,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_td_open_close_lock_of_ti_device [2024-11-09 07:07:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_td_open_close_lock_of_ti_device [2024-11-09 07:07:02,273 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_out_callback [2024-11-09 07:07:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_out_callback [2024-11-09 07:07:02,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2024-11-09 07:07:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2024-11-09 07:07:02,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_get_icount [2024-11-09 07:07:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_get_icount [2024-11-09 07:07:02,274 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_mcr [2024-11-09 07:07:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_mcr [2024-11-09 07:07:02,275 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 07:07:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 07:07:02,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 07:07:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 07:07:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure ti_startup [2024-11-09 07:07:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_startup [2024-11-09 07:07:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 07:07:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 07:07:02,276 INFO L130 BoogieDeclarations]: Found specification of procedure ti_ioctl [2024-11-09 07:07:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_ioctl [2024-11-09 07:07:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:07:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:07:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_2 [2024-11-09 07:07:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_2 [2024-11-09 07:07:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2024-11-09 07:07:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2024-11-09 07:07:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmget [2024-11-09 07:07:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmget [2024-11-09 07:07:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure ti_port_remove [2024-11-09 07:07:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_port_remove [2024-11-09 07:07:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2024-11-09 07:07:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2024-11-09 07:07:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-09 07:07:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-09 07:07:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure ti_port_probe [2024-11-09 07:07:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_port_probe [2024-11-09 07:07:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:07:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2024-11-09 07:07:02,280 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2024-11-09 07:07:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure ti_break [2024-11-09 07:07:02,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_break [2024-11-09 07:07:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16s [2024-11-09 07:07:02,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16s [2024-11-09 07:07:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:07:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tx_empty [2024-11-09 07:07:02,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tx_empty [2024-11-09 07:07:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 07:07:02,282 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 07:07:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-09 07:07:02,282 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-09 07:07:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:07:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write [2024-11-09 07:07:02,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write [2024-11-09 07:07:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 07:07:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ti_restart_read [2024-11-09 07:07:02,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_restart_read [2024-11-09 07:07:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 07:07:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 07:07:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-09 07:07:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-09 07:07:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ti_release [2024-11-09 07:07:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_release [2024-11-09 07:07:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 07:07:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 07:07:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 07:07:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 07:07:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-11-09 07:07:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-11-09 07:07:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-09 07:07:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-09 07:07:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2024-11-09 07:07:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2024-11-09 07:07:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 07:07:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 07:07:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2024-11-09 07:07:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2024-11-09 07:07:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2024-11-09 07:07:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2024-11-09 07:07:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 07:07:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:07:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:07:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure ti_command_out_sync [2024-11-09 07:07:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_command_out_sync [2024-11-09 07:07:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-09 07:07:02,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-09 07:07:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-09 07:07:02,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-09 07:07:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure ti_open [2024-11-09 07:07:02,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_open [2024-11-09 07:07:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmset [2024-11-09 07:07:02,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmset [2024-11-09 07:07:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 07:07:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 07:07:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:07:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-09 07:07:02,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-09 07:07:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_byte [2024-11-09 07:07:02,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_byte [2024-11-09 07:07:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ti_chars_in_buffer [2024-11-09 07:07:02,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_chars_in_buffer [2024-11-09 07:07:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 07:07:02,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 07:07:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_room [2024-11-09 07:07:02,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_room [2024-11-09 07:07:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-09 07:07:02,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-09 07:07:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:07:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-09 07:07:02,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-09 07:07:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ti_interrupt_callback [2024-11-09 07:07:02,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_interrupt_callback [2024-11-09 07:07:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:07:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 07:07:02,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 07:07:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:07:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ti_close [2024-11-09 07:07:02,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_close [2024-11-09 07:07:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-11-09 07:07:02,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-11-09 07:07:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_td_open_close_lock_of_ti_device [2024-11-09 07:07:02,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_td_open_close_lock_of_ti_device [2024-11-09 07:07:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure ti_unthrottle [2024-11-09 07:07:02,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_unthrottle [2024-11-09 07:07:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2024-11-09 07:07:02,298 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2024-11-09 07:07:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2024-11-09 07:07:02,299 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2024-11-09 07:07:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 07:07:02,299 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 07:07:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure ti_send [2024-11-09 07:07:02,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_send [2024-11-09 07:07:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:07:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_termios [2024-11-09 07:07:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_termios [2024-11-09 07:07:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2024-11-09 07:07:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2024-11-09 07:07:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:07:02,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:07:03,159 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:07:03,168 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:07:04,508 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 07:07:24,709 INFO L? ?]: Removed 1518 outVars from TransFormulas that were not future-live. [2024-11-09 07:07:24,709 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:07:27,557 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:07:27,557 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:07:27,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:07:27 BoogieIcfgContainer [2024-11-09 07:07:27,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:07:27,561 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:07:27,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:07:27,566 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:07:27,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:06:57" (1/3) ... [2024-11-09 07:07:27,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b7e6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:07:27, skipping insertion in model container [2024-11-09 07:07:27,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:07:01" (2/3) ... [2024-11-09 07:07:27,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b7e6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:07:27, skipping insertion in model container [2024-11-09 07:07:27,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:07:27" (3/3) ... [2024-11-09 07:07:27,570 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2024-11-09 07:07:27,596 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:07:27,597 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:07:27,734 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:07:27,746 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;@b042322, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:07:27,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:07:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 1435 states, 922 states have (on average 1.3915401301518437) internal successors, (1283), 949 states have internal predecessors, (1283), 442 states have call successors, (442), 70 states have call predecessors, (442), 69 states have return successors, (438), 432 states have call predecessors, (438), 438 states have call successors, (438) [2024-11-09 07:07:27,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-09 07:07:27,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:07:27,789 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:27,790 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:07:27,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:27,799 INFO L85 PathProgramCache]: Analyzing trace with hash -745516674, now seen corresponding path program 1 times [2024-11-09 07:07:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:07:27,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219329044] [2024-11-09 07:07:27,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:27,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:11:00,686 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2024-11-09 07:11:00,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:11:00,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219329044] [2024-11-09 07:11:00,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219329044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:11:00,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:11:00,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:11:00,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877374640] [2024-11-09 07:11:00,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:11:00,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:11:00,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:11:00,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:11:00,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:11:00,745 INFO L87 Difference]: Start difference. First operand has 1435 states, 922 states have (on average 1.3915401301518437) internal successors, (1283), 949 states have internal predecessors, (1283), 442 states have call successors, (442), 70 states have call predecessors, (442), 69 states have return successors, (438), 432 states have call predecessors, (438), 438 states have call successors, (438) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-09 07:11:03,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:05,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:08,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:11,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:11:11,743 INFO L93 Difference]: Finished difference Result 4176 states and 6341 transitions. [2024-11-09 07:11:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:11:11,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 209 [2024-11-09 07:11:11,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:11:11,787 INFO L225 Difference]: With dead ends: 4176 [2024-11-09 07:11:11,787 INFO L226 Difference]: Without dead ends: 2774 [2024-11-09 07:11:11,802 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 [2024-11-09 07:11:11,805 INFO L432 NwaCegarLoop]: 2045 mSDtfsCounter, 2034 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 4080 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:11:11,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 4080 Invalid, 234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 229 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2024-11-09 07:11:11,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2024-11-09 07:11:12,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2770. [2024-11-09 07:11:12,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 1797 states have (on average 1.389538119087368) internal successors, (2497), 1834 states have internal predecessors, (2497), 839 states have call successors, (839), 134 states have call predecessors, (839), 133 states have return successors, (833), 821 states have call predecessors, (833), 833 states have call successors, (833) [2024-11-09 07:11:12,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 4169 transitions. [2024-11-09 07:11:12,079 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 4169 transitions. Word has length 209 [2024-11-09 07:11:12,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:11:12,083 INFO L471 AbstractCegarLoop]: Abstraction has 2770 states and 4169 transitions. [2024-11-09 07:11:12,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-09 07:11:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 4169 transitions. [2024-11-09 07:11:12,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-09 07:11:12,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:11:12,095 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:11:12,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:11:12,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:11:12,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:11:12,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1244904482, now seen corresponding path program 1 times [2024-11-09 07:11:12,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:11:12,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792216679] [2024-11-09 07:11:12,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:11:12,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:14:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:01,202 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2024-11-09 07:15:01,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:15:01,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792216679] [2024-11-09 07:15:01,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792216679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:01,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:01,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:15:01,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485628321] [2024-11-09 07:15:01,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:01,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:15:01,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:15:01,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:15:01,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:15:01,214 INFO L87 Difference]: Start difference. First operand 2770 states and 4169 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 07:15:03,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:06,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:06,200 INFO L93 Difference]: Finished difference Result 2772 states and 4170 transitions. [2024-11-09 07:15:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:15:06,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 211 [2024-11-09 07:15:06,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:06,223 INFO L225 Difference]: With dead ends: 2772 [2024-11-09 07:15:06,223 INFO L226 Difference]: Without dead ends: 2769 [2024-11-09 07:15:06,228 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 [2024-11-09 07:15:06,229 INFO L432 NwaCegarLoop]: 2031 mSDtfsCounter, 2092 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:06,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 2031 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-09 07:15:06,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2024-11-09 07:15:06,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2024-11-09 07:15:06,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 1797 states have (on average 1.3889816360601002) internal successors, (2496), 1833 states have internal predecessors, (2496), 838 states have call successors, (838), 134 states have call predecessors, (838), 133 states have return successors, (833), 821 states have call predecessors, (833), 833 states have call successors, (833) [2024-11-09 07:15:06,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4167 transitions. [2024-11-09 07:15:06,391 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4167 transitions. Word has length 211 [2024-11-09 07:15:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:06,394 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 4167 transitions. [2024-11-09 07:15:06,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 07:15:06,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4167 transitions. [2024-11-09 07:15:06,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-09 07:15:06,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:06,402 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:06,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:15:06,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:15:06,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:06,404 INFO L85 PathProgramCache]: Analyzing trace with hash 62006886, now seen corresponding path program 1 times [2024-11-09 07:15:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:15:06,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180195210] [2024-11-09 07:15:06,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:06,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2024-11-09 07:18:09,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:09,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180195210] [2024-11-09 07:18:09,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180195210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:18:09,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:18:09,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:18:09,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175096037] [2024-11-09 07:18:09,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:18:09,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:18:09,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:09,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:18:09,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:18:09,335 INFO L87 Difference]: Start difference. First operand 2769 states and 4167 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 07:18:11,605 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 [] [2024-11-09 07:18:15,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:18:15,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:15,566 INFO L93 Difference]: Finished difference Result 2771 states and 4168 transitions. [2024-11-09 07:18:15,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:18:15,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 212 [2024-11-09 07:18:15,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:15,587 INFO L225 Difference]: With dead ends: 2771 [2024-11-09 07:18:15,588 INFO L226 Difference]: Without dead ends: 2768 [2024-11-09 07:18:15,590 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 [2024-11-09 07:18:15,592 INFO L432 NwaCegarLoop]: 2029 mSDtfsCounter, 2089 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:15,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 2029 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2024-11-09 07:18:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2024-11-09 07:18:15,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 2768. [2024-11-09 07:18:15,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2768 states, 1797 states have (on average 1.3884251530328324) internal successors, (2495), 1832 states have internal predecessors, (2495), 837 states have call successors, (837), 134 states have call predecessors, (837), 133 states have return successors, (833), 821 states have call predecessors, (833), 833 states have call successors, (833) [2024-11-09 07:18:15,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 4165 transitions. [2024-11-09 07:18:15,771 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 4165 transitions. Word has length 212 [2024-11-09 07:18:15,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:15,773 INFO L471 AbstractCegarLoop]: Abstraction has 2768 states and 4165 transitions. [2024-11-09 07:18:15,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 07:18:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 4165 transitions. [2024-11-09 07:18:15,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-09 07:18:15,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:15,778 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:18:15,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:18:15,779 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:18:15,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1921558497, now seen corresponding path program 1 times [2024-11-09 07:18:15,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:15,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485655456] [2024-11-09 07:18:15,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:15,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:25,522 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2024-11-09 07:21:25,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:25,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485655456] [2024-11-09 07:21:25,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485655456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:25,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:25,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:21:25,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307410272] [2024-11-09 07:21:25,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:25,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:21:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:21:25,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:21:25,529 INFO L87 Difference]: Start difference. First operand 2768 states and 4165 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 07:21:27,801 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 [] [2024-11-09 07:21:29,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:29,715 INFO L93 Difference]: Finished difference Result 2770 states and 4166 transitions. [2024-11-09 07:21:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:21:29,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 213 [2024-11-09 07:21:29,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:29,736 INFO L225 Difference]: With dead ends: 2770 [2024-11-09 07:21:29,736 INFO L226 Difference]: Without dead ends: 2767 [2024-11-09 07:21:29,739 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 [2024-11-09 07:21:29,740 INFO L432 NwaCegarLoop]: 2027 mSDtfsCounter, 2086 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2086 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:29,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2086 Valid, 2027 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 07:21:29,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2024-11-09 07:21:29,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2767. [2024-11-09 07:21:29,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2767 states, 1797 states have (on average 1.387868670005565) internal successors, (2494), 1831 states have internal predecessors, (2494), 836 states have call successors, (836), 134 states have call predecessors, (836), 133 states have return successors, (833), 821 states have call predecessors, (833), 833 states have call successors, (833) [2024-11-09 07:21:29,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 4163 transitions. [2024-11-09 07:21:29,946 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 4163 transitions. Word has length 213 [2024-11-09 07:21:29,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:29,947 INFO L471 AbstractCegarLoop]: Abstraction has 2767 states and 4163 transitions. [2024-11-09 07:21:29,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 07:21:29,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 4163 transitions. [2024-11-09 07:21:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-09 07:21:29,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:29,952 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:21:29,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:21:29,953 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:21:29,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:29,954 INFO L85 PathProgramCache]: Analyzing trace with hash -561878839, now seen corresponding path program 1 times [2024-11-09 07:21:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:29,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507295444] [2024-11-09 07:21:29,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:29,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms