./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--thunderbolt--thunderbolt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ --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 d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:09:22,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:09:22,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:09:22,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:09:22,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:09:22,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:09:22,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:09:22,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:09:22,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:09:22,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:09:22,574 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:09:22,576 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:09:22,576 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:09:22,578 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:09:22,578 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:09:22,579 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:09:22,579 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:09:22,579 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:09:22,580 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:09:22,580 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:09:22,581 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:09:22,581 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:09:22,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:09:22,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:09:22,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:09:22,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:09:22,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:09:22,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:09:22,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:09:22,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:09:22,586 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:09:22,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:09:22,587 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:09:22,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:22,587 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:09:22,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:09:22,588 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:09:22,588 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:09:22,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:09:22,588 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:09:22,589 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:09:22,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:09:22,589 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_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d253b745dee5ef05ffbbca6087a2bac9710536fabca8626c0fece9fd6b3fe837 [2023-11-19 05:09:22,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:09:22,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:09:22,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:09:22,967 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:09:22,968 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:09:22,969 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2023-11-19 05:09:26,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:09:26,842 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:09:26,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2023-11-19 05:09:26,909 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/data/3e4d43d4f/d43c1fd8f8294fa08f56f71dd26ff04c/FLAG862d89667 [2023-11-19 05:09:26,929 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/data/3e4d43d4f/d43c1fd8f8294fa08f56f71dd26ff04c [2023-11-19 05:09:26,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:09:26,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:09:26,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:26,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:09:26,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:09:26,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:26" (1/1) ... [2023-11-19 05:09:26,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25eed8e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:26, skipping insertion in model container [2023-11-19 05:09:26,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:26" (1/1) ... [2023-11-19 05:09:27,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:09:30,212 WARN L240 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_a1738a00-82c3-47ba-afb8-9f873e434fc9/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2023-11-19 05:09:30,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:30,540 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:09:30,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5435] [2023-11-19 05:09:30,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6164] [2023-11-19 05:09:30,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6237] [2023-11-19 05:09:31,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [7854] [2023-11-19 05:09:31,384 WARN L240 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_a1738a00-82c3-47ba-afb8-9f873e434fc9/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[312804,312817] [2023-11-19 05:09:31,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:31,605 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:09:31,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31 WrapperNode [2023-11-19 05:09:31,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:31,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:31,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:09:31,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:09:31,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:31,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,022 INFO L138 Inliner]: procedures = 480, calls = 4187, calls flagged for inlining = 167, calls inlined = 159, statements flattened = 7637 [2023-11-19 05:09:32,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:32,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:09:32,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:09:32,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:09:32,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:09:32,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:09:32,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:09:32,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:09:32,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (1/1) ... [2023-11-19 05:09:32,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:32,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:32,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:09:32,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1738a00-82c3-47ba-afb8-9f873e434fc9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:09:32,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_ring [2023-11-19 05:09:32,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_ring [2023-11-19 05:09:32,618 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2023-11-19 05:09:32,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2023-11-19 05:09:32,620 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2023-11-19 05:09:32,620 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2023-11-19 05:09:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:09:32,621 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:09:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:09:32,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:09:32,621 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2023-11-19 05:09:32,621 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2023-11-19 05:09:32,622 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2023-11-19 05:09:32,622 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2023-11-19 05:09:32,622 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-19 05:09:32,622 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-19 05:09:32,622 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2023-11-19 05:09:32,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2023-11-19 05:09:32,623 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2023-11-19 05:09:32,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2023-11-19 05:09:32,623 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2023-11-19 05:09:32,624 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2023-11-19 05:09:32,624 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2023-11-19 05:09:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2023-11-19 05:09:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2023-11-19 05:09:32,625 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2023-11-19 05:09:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2023-11-19 05:09:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2023-11-19 05:09:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 05:09:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 05:09:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2023-11-19 05:09:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2023-11-19 05:09:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 05:09:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 05:09:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 05:09:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 05:09:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_ring [2023-11-19 05:09:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_ring [2023-11-19 05:09:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2023-11-19 05:09:32,628 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2023-11-19 05:09:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:09:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2023-11-19 05:09:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2023-11-19 05:09:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2023-11-19 05:09:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2023-11-19 05:09:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:09:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:09:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2023-11-19 05:09:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2023-11-19 05:09:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2023-11-19 05:09:32,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2023-11-19 05:09:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:09:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:09:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2023-11-19 05:09:32,631 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2023-11-19 05:09:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2023-11-19 05:09:32,631 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2023-11-19 05:09:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 05:09:32,632 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 05:09:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2023-11-19 05:09:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2023-11-19 05:09:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb [2023-11-19 05:09:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb [2023-11-19 05:09:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:09:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2023-11-19 05:09:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2023-11-19 05:09:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:09:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:09:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2023-11-19 05:09:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2023-11-19 05:09:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2023-11-19 05:09:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2023-11-19 05:09:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2023-11-19 05:09:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2023-11-19 05:09:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2023-11-19 05:09:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2023-11-19 05:09:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2023-11-19 05:09:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2023-11-19 05:09:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2023-11-19 05:09:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2023-11-19 05:09:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2023-11-19 05:09:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2023-11-19 05:09:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 05:09:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 05:09:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2023-11-19 05:09:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2023-11-19 05:09:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 05:09:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 05:09:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2023-11-19 05:09:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2023-11-19 05:09:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:09:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2023-11-19 05:09:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2023-11-19 05:09:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-19 05:09:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-19 05:09:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:09:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:09:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2023-11-19 05:09:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2023-11-19 05:09:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2023-11-19 05:09:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2023-11-19 05:09:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2023-11-19 05:09:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2023-11-19 05:09:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-19 05:09:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-19 05:09:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:09:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:09:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 05:09:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 05:09:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 05:09:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 05:09:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb [2023-11-19 05:09:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb [2023-11-19 05:09:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2023-11-19 05:09:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2023-11-19 05:09:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:09:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-19 05:09:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-19 05:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2023-11-19 05:09:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2023-11-19 05:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2023-11-19 05:09:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2023-11-19 05:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 05:09:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 05:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2023-11-19 05:09:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2023-11-19 05:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2023-11-19 05:09:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2023-11-19 05:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:09:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:09:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:09:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:09:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2023-11-19 05:09:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2023-11-19 05:09:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2023-11-19 05:09:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2023-11-19 05:09:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2023-11-19 05:09:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2023-11-19 05:09:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2023-11-19 05:09:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2023-11-19 05:09:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2023-11-19 05:09:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2023-11-19 05:09:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2023-11-19 05:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2023-11-19 05:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2023-11-19 05:09:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2023-11-19 05:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-19 05:09:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-19 05:09:32,655 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2023-11-19 05:09:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2023-11-19 05:09:32,655 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:09:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:09:32,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:09:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:09:32,655 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2023-11-19 05:09:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2023-11-19 05:09:32,655 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2023-11-19 05:09:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2023-11-19 05:09:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-19 05:09:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-19 05:09:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:09:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:09:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2023-11-19 05:09:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2023-11-19 05:09:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2023-11-19 05:09:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2023-11-19 05:09:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2023-11-19 05:09:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2023-11-19 05:09:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 05:09:32,657 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 05:09:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2023-11-19 05:09:32,661 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2023-11-19 05:09:32,662 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2023-11-19 05:09:32,662 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2023-11-19 05:09:32,662 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2023-11-19 05:09:32,662 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2023-11-19 05:09:32,662 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-19 05:09:32,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-19 05:09:32,663 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2023-11-19 05:09:32,663 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2023-11-19 05:09:32,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:09:32,663 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 05:09:32,663 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 05:09:32,663 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2023-11-19 05:09:32,664 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2023-11-19 05:09:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2023-11-19 05:09:32,664 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2023-11-19 05:09:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2023-11-19 05:09:32,664 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2023-11-19 05:09:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:09:32,664 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-11-19 05:09:32,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-11-19 05:09:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-19 05:09:32,665 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-19 05:09:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:09:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2023-11-19 05:09:32,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2023-11-19 05:09:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 05:09:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 05:09:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2023-11-19 05:09:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2023-11-19 05:09:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2023-11-19 05:09:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2023-11-19 05:09:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-19 05:09:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-19 05:09:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 05:09:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 05:09:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-19 05:09:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-19 05:09:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2023-11-19 05:09:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2023-11-19 05:09:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-19 05:09:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-19 05:09:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-11-19 05:09:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-11-19 05:09:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2023-11-19 05:09:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2023-11-19 05:09:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-11-19 05:09:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-11-19 05:09:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2023-11-19 05:09:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2023-11-19 05:09:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2023-11-19 05:09:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2023-11-19 05:09:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2023-11-19 05:09:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2023-11-19 05:09:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2023-11-19 05:09:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2023-11-19 05:09:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-19 05:09:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-19 05:09:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2023-11-19 05:09:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2023-11-19 05:09:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2023-11-19 05:09:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2023-11-19 05:09:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2023-11-19 05:09:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2023-11-19 05:09:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2023-11-19 05:09:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2023-11-19 05:09:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:09:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:09:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2023-11-19 05:09:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2023-11-19 05:09:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:09:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:09:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:09:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2023-11-19 05:09:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2023-11-19 05:09:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2023-11-19 05:09:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2023-11-19 05:09:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2023-11-19 05:09:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2023-11-19 05:09:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2023-11-19 05:09:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2023-11-19 05:09:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2023-11-19 05:09:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2023-11-19 05:09:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2023-11-19 05:09:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2023-11-19 05:09:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2023-11-19 05:09:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2023-11-19 05:09:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2023-11-19 05:09:32,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2023-11-19 05:09:32,675 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2023-11-19 05:09:32,675 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2023-11-19 05:09:32,675 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2023-11-19 05:09:32,675 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2023-11-19 05:09:32,675 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2023-11-19 05:09:32,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2023-11-19 05:09:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2023-11-19 05:09:32,676 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2023-11-19 05:09:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-19 05:09:32,676 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-19 05:09:32,676 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2023-11-19 05:09:32,677 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2023-11-19 05:09:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-11-19 05:09:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-11-19 05:09:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2023-11-19 05:09:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2023-11-19 05:09:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2023-11-19 05:09:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2023-11-19 05:09:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2023-11-19 05:09:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2023-11-19 05:09:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2023-11-19 05:09:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2023-11-19 05:09:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_tb_nhi [2023-11-19 05:09:32,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_tb_nhi [2023-11-19 05:09:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:09:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2023-11-19 05:09:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2023-11-19 05:09:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_tb_nhi [2023-11-19 05:09:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_tb_nhi [2023-11-19 05:09:34,010 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:09:34,021 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:09:34,721 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:09:59,998 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:10:02,561 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:10:02,561 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:10:02,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:10:02 BoogieIcfgContainer [2023-11-19 05:10:02,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:10:02,580 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:10:02,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:10:02,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:10:02,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:09:26" (1/3) ... [2023-11-19 05:10:02,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b96c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:10:02, skipping insertion in model container [2023-11-19 05:10:02,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:31" (2/3) ... [2023-11-19 05:10:02,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b96c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:10:02, skipping insertion in model container [2023-11-19 05:10:02,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:10:02" (3/3) ... [2023-11-19 05:10:02,587 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2023-11-19 05:10:02,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:10:02,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:10:02,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:10:02,766 INFO L357 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, mHoare=true, 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;@3732d932, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:10:02,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:10:02,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 2439 states, 1458 states have (on average 1.2997256515775035) internal successors, (1895), 1523 states have internal predecessors, (1895), 843 states have call successors, (843), 137 states have call predecessors, (843), 136 states have return successors, (837), 833 states have call predecessors, (837), 837 states have call successors, (837) [2023-11-19 05:10:02,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 05:10:02,801 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:02,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:10:02,804 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:10:02,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:02,813 INFO L85 PathProgramCache]: Analyzing trace with hash 425209750, now seen corresponding path program 1 times [2023-11-19 05:10:02,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:02,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383194043] [2023-11-19 05:10:02,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:02,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:10:04,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:04,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383194043] [2023-11-19 05:10:04,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383194043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:04,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:04,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:10:04,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839632219] [2023-11-19 05:10:04,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:04,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:10:04,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:04,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:10:04,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:04,069 INFO L87 Difference]: Start difference. First operand has 2439 states, 1458 states have (on average 1.2997256515775035) internal successors, (1895), 1523 states have internal predecessors, (1895), 843 states have call successors, (843), 137 states have call predecessors, (843), 136 states have return successors, (837), 833 states have call predecessors, (837), 837 states have call successors, (837) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:10:08,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:10,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:10,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:10:10,954 INFO L93 Difference]: Finished difference Result 4908 states and 7353 transitions. [2023-11-19 05:10:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:10:10,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2023-11-19 05:10:10,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:10:11,001 INFO L225 Difference]: With dead ends: 4908 [2023-11-19 05:10:11,001 INFO L226 Difference]: Without dead ends: 2463 [2023-11-19 05:10:11,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:11,032 INFO L413 NwaCegarLoop]: 3327 mSDtfsCounter, 3277 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3277 SdHoareTripleChecker+Valid, 3589 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:10:11,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3277 Valid, 3589 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 274 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2023-11-19 05:10:11,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2023-11-19 05:10:11,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2461. [2023-11-19 05:10:11,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 1474 states have (on average 1.2903663500678426) internal successors, (1902), 1529 states have internal predecessors, (1902), 837 states have call successors, (837), 150 states have call predecessors, (837), 149 states have return successors, (828), 824 states have call predecessors, (828), 828 states have call successors, (828) [2023-11-19 05:10:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 3567 transitions. [2023-11-19 05:10:11,612 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 3567 transitions. Word has length 26 [2023-11-19 05:10:11,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:10:11,613 INFO L495 AbstractCegarLoop]: Abstraction has 2461 states and 3567 transitions. [2023-11-19 05:10:11,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 05:10:11,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 3567 transitions. [2023-11-19 05:10:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 05:10:11,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:11,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:10:11,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:10:11,620 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:10:11,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:11,621 INFO L85 PathProgramCache]: Analyzing trace with hash 772622533, now seen corresponding path program 1 times [2023-11-19 05:10:11,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892762678] [2023-11-19 05:10:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:11,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:12,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:10:12,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:12,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892762678] [2023-11-19 05:10:12,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892762678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:12,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:12,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:10:12,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837250430] [2023-11-19 05:10:12,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:12,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:10:12,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:12,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:10:12,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:12,156 INFO L87 Difference]: Start difference. First operand 2461 states and 3567 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)