./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-43_2a-drivers--usb--misc--ftdi-elan.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/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_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/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_ab217996-90a8-4152-971d-ba59ba5b6c53/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 41a06dba17575946a131560ceaa3b40649c8b00d9b30bc4696c27d89715c52b3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:23:52,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:23:52,394 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:23:52,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:23:52,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:23:52,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:23:52,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:23:52,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:23:52,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:23:52,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:23:52,459 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:23:52,460 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:23:52,460 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:23:52,462 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:23:52,463 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:23:52,463 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:23:52,463 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:23:52,464 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:23:52,464 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:23:52,465 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:23:52,465 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:23:52,466 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:23:52,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:23:52,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:23:52,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:23:52,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:23:52,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:23:52,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:23:52,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:23:52,470 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:23:52,471 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:23:52,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:23:52,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:23:52,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:23:52,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:23:52,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:23:52,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:23:52,473 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:23:52,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:23:52,473 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:23:52,473 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:23:52,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:23:52,474 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_ab217996-90a8-4152-971d-ba59ba5b6c53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41a06dba17575946a131560ceaa3b40649c8b00d9b30bc4696c27d89715c52b3 [2023-11-19 05:23:52,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:23:52,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:23:52,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:23:52,769 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:23:52,770 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:23:52,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2023-11-19 05:23:55,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:23:56,532 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:23:56,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2023-11-19 05:23:56,587 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/data/eeb0c9d01/a2e2e25081e54be38cbfb6661305cfc3/FLAG8c64d8001 [2023-11-19 05:23:56,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/data/eeb0c9d01/a2e2e25081e54be38cbfb6661305cfc3 [2023-11-19 05:23:56,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:23:56,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:23:56,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:23:56,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:23:56,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:23:56,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:23:56" (1/1) ... [2023-11-19 05:23:56,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb4c5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:56, skipping insertion in model container [2023-11-19 05:23:56,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:23:56" (1/1) ... [2023-11-19 05:23:56,791 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:23:58,840 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_ab217996-90a8-4152-971d-ba59ba5b6c53/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[263943,263956] [2023-11-19 05:23:58,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:23:58,973 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:23:59,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3725-3726] [2023-11-19 05:23:59,104 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3737-3738] [2023-11-19 05:23:59,105 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3741-3742] [2023-11-19 05:23:59,105 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3745-3746] [2023-11-19 05:23:59,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3749-3750] [2023-11-19 05:23:59,335 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_ab217996-90a8-4152-971d-ba59ba5b6c53/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[263943,263956] [2023-11-19 05:23:59,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:23:59,430 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:23:59,430 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:23:59,439 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:23:59,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59 WrapperNode [2023-11-19 05:23:59,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:23:59,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:23:59,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:23:59,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:23:59,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:23:59,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:23:59,909 INFO L138 Inliner]: procedures = 267, calls = 2900, calls flagged for inlining = 122, calls inlined = 113, statements flattened = 6785 [2023-11-19 05:23:59,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:23:59,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:23:59,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:23:59,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:23:59,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:23:59,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:23:59,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:24:00,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:24:00,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:24:00,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:24:00,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:24:00,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:24:00,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:00,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:00,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:00,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:00,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (1/1) ... [2023-11-19 05:24:00,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:00,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:00,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:00,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab217996-90a8-4152-971d-ba59ba5b6c53/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-19 05:24:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-19 05:24:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 05:24:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 05:24:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-19 05:24:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-19 05:24:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2023-11-19 05:24:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2023-11-19 05:24:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:24:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:24:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:24:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:24:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2023-11-19 05:24:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2023-11-19 05:24:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:24:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:24:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 05:24:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 05:24:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2023-11-19 05:24:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2023-11-19 05:24:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-19 05:24:00,395 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-19 05:24:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-19 05:24:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-19 05:24:00,510 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2023-11-19 05:24:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2023-11-19 05:24:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:24:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:24:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-19 05:24:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-19 05:24:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:24:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:24:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-19 05:24:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-19 05:24:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:24:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:24:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2023-11-19 05:24:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2023-11-19 05:24:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2023-11-19 05:24:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2023-11-19 05:24:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:24:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:24:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 05:24:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 05:24:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-19 05:24:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-19 05:24:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-11-19 05:24:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-11-19 05:24:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2023-11-19 05:24:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2023-11-19 05:24:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:24:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 05:24:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-19 05:24:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-19 05:24:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-11-19 05:24:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-11-19 05:24:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2023-11-19 05:24:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2023-11-19 05:24:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:24:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-11-19 05:24:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-11-19 05:24:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:24:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2023-11-19 05:24:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2023-11-19 05:24:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:24:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:24:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 05:24:00,516 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 05:24:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-19 05:24:00,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-19 05:24:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-19 05:24:00,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-19 05:24:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:24:00,517 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:24:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2023-11-19 05:24:00,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2023-11-19 05:24:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2023-11-19 05:24:00,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2023-11-19 05:24:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 05:24:00,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 05:24:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_45 [2023-11-19 05:24:00,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_45 [2023-11-19 05:24:00,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_44 [2023-11-19 05:24:00,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_44 [2023-11-19 05:24:00,518 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-19 05:24:00,521 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-19 05:24:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_43 [2023-11-19 05:24:00,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_43 [2023-11-19 05:24:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-19 05:24:00,522 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-19 05:24:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-11-19 05:24:00,522 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-11-19 05:24:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2023-11-19 05:24:00,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2023-11-19 05:24:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2023-11-19 05:24:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2023-11-19 05:24:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2023-11-19 05:24:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2023-11-19 05:24:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2023-11-19 05:24:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2023-11-19 05:24:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2023-11-19 05:24:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2023-11-19 05:24:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:24:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 05:24:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 05:24:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2023-11-19 05:24:00,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2023-11-19 05:24:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-19 05:24:00,525 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-19 05:24:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-19 05:24:00,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-19 05:24:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-19 05:24:00,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-19 05:24:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:24:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-19 05:24:00,526 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-19 05:24:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2023-11-19 05:24:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2023-11-19 05:24:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2023-11-19 05:24:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2023-11-19 05:24:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2023-11-19 05:24:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2023-11-19 05:24:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2023-11-19 05:24:00,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2023-11-19 05:24:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 05:24:00,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 05:24:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:24:00,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:24:00,542 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2023-11-19 05:24:00,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2023-11-19 05:24:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-19 05:24:00,543 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-19 05:24:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:24:00,543 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-19 05:24:00,543 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-19 05:24:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:24:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:24:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2023-11-19 05:24:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2023-11-19 05:24:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 05:24:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 05:24:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2023-11-19 05:24:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2023-11-19 05:24:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2023-11-19 05:24:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2023-11-19 05:24:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:24:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2023-11-19 05:24:00,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2023-11-19 05:24:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 05:24:00,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 05:24:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-19 05:24:00,546 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-19 05:24:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-19 05:24:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-19 05:24:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:24:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2023-11-19 05:24:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2023-11-19 05:24:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:24:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:24:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2023-11-19 05:24:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2023-11-19 05:24:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 05:24:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 05:24:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2023-11-19 05:24:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2023-11-19 05:24:00,549 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-11-19 05:24:00,549 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-11-19 05:24:00,549 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-19 05:24:00,549 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-19 05:24:00,549 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-19 05:24:00,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-19 05:24:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:24:00,550 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:24:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 05:24:00,550 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 05:24:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2023-11-19 05:24:00,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2023-11-19 05:24:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2023-11-19 05:24:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2023-11-19 05:24:00,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:24:00,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:01,392 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:01,398 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:02,535 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:24:18,059 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:20,161 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:20,161 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:24:20,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:20 BoogieIcfgContainer [2023-11-19 05:24:20,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:20,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:20,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:20,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:20,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:23:56" (1/3) ... [2023-11-19 05:24:20,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a43353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:20, skipping insertion in model container [2023-11-19 05:24:20,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:59" (2/3) ... [2023-11-19 05:24:20,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a43353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:20, skipping insertion in model container [2023-11-19 05:24:20,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:20" (3/3) ... [2023-11-19 05:24:20,192 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2023-11-19 05:24:20,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:20,212 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:20,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:20,314 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;@49e52ec7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:20,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:20,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 1499 states, 931 states have (on average 1.406015037593985) internal successors, (1309), 983 states have internal predecessors, (1309), 483 states have call successors, (483), 84 states have call predecessors, (483), 83 states have return successors, (476), 462 states have call predecessors, (476), 476 states have call successors, (476) [2023-11-19 05:24:20,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 05:24:20,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:20,346 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:20,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:20,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:20,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1505238674, now seen corresponding path program 1 times [2023-11-19 05:24:20,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:20,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606866253] [2023-11-19 05:24:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:20,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-19 05:24:21,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:21,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606866253] [2023-11-19 05:24:21,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606866253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:21,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:21,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:21,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789912581] [2023-11-19 05:24:21,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:21,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:21,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:24:21,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:21,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:21,570 INFO L87 Difference]: Start difference. First operand has 1499 states, 931 states have (on average 1.406015037593985) internal successors, (1309), 983 states have internal predecessors, (1309), 483 states have call successors, (483), 84 states have call predecessors, (483), 83 states have return successors, (476), 462 states have call predecessors, (476), 476 states have call successors, (476) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 05:24:23,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:24:27,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:24:29,577 WARN L539 Checker$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 05:24:31,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:24:32,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:32,023 INFO L93 Difference]: Finished difference Result 4304 states and 6675 transitions. [2023-11-19 05:24:32,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:32,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 93 [2023-11-19 05:24:32,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:32,069 INFO L225 Difference]: With dead ends: 4304 [2023-11-19 05:24:32,069 INFO L226 Difference]: Without dead ends: 2807 [2023-11-19 05:24:32,095 INFO L412 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 [2023-11-19 05:24:32,099 INFO L413 NwaCegarLoop]: 2119 mSDtfsCounter, 2079 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2079 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:32,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2079 Valid, 4120 Invalid, 385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 378 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2023-11-19 05:24:32,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2023-11-19 05:24:32,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 2804. [2023-11-19 05:24:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 1766 states have (on average 1.406568516421291) internal successors, (2484), 1851 states have internal predecessors, (2484), 880 states have call successors, (880), 158 states have call predecessors, (880), 157 states have return successors, (878), 850 states have call predecessors, (878), 878 states have call successors, (878) [2023-11-19 05:24:32,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4242 transitions. [2023-11-19 05:24:32,441 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4242 transitions. Word has length 93 [2023-11-19 05:24:32,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:32,443 INFO L495 AbstractCegarLoop]: Abstraction has 2804 states and 4242 transitions. [2023-11-19 05:24:32,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 05:24:32,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4242 transitions. [2023-11-19 05:24:32,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 05:24:32,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:32,463 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:32,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:24:32,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:32,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:32,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1018881552, now seen corresponding path program 1 times [2023-11-19 05:24:32,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:32,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839642857] [2023-11-19 05:24:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:32,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-19 05:24:33,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:33,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839642857] [2023-11-19 05:24:33,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839642857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:33,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:33,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:33,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707369162] [2023-11-19 05:24:33,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:33,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:24:33,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:33,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:33,229 INFO L87 Difference]: Start difference. First operand 2804 states and 4242 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 05:24:38,470 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 05:24:41,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:24:43,126 WARN L539 Checker$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 05:24:44,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:44,461 INFO L93 Difference]: Finished difference Result 8186 states and 12372 transitions. [2023-11-19 05:24:44,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:44,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2023-11-19 05:24:44,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:44,518 INFO L225 Difference]: With dead ends: 8186 [2023-11-19 05:24:44,518 INFO L226 Difference]: Without dead ends: 5404 [2023-11-19 05:24:44,552 INFO L412 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 [2023-11-19 05:24:44,553 INFO L413 NwaCegarLoop]: 2058 mSDtfsCounter, 2090 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 4074 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:44,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 4074 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 386 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2023-11-19 05:24:44,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2023-11-19 05:24:44,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 5401. [2023-11-19 05:24:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 3395 states have (on average 1.4044182621502208) internal successors, (4768), 3561 states have internal predecessors, (4768), 1696 states have call successors, (1696), 310 states have call predecessors, (1696), 309 states have return successors, (1693), 1637 states have call predecessors, (1693), 1693 states have call successors, (1693) [2023-11-19 05:24:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 8157 transitions. [2023-11-19 05:24:44,985 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 8157 transitions. Word has length 100 [2023-11-19 05:24:44,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:44,986 INFO L495 AbstractCegarLoop]: Abstraction has 5401 states and 8157 transitions. [2023-11-19 05:24:44,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 05:24:44,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 8157 transitions. [2023-11-19 05:24:44,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:24:44,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:44,990 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:24:44,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:24:44,991 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:44,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:44,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1289454401, now seen corresponding path program 1 times [2023-11-19 05:24:44,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:44,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944455635] [2023-11-19 05:24:44,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:44,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:46,253 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-19 05:24:46,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:46,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944455635] [2023-11-19 05:24:46,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944455635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:46,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:46,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:24:46,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75789445] [2023-11-19 05:24:46,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:46,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:24:46,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:24:46,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:24:46,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:24:46,259 INFO L87 Difference]: Start difference. First operand 5401 states and 8157 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)