./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--input--mousedev.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX --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 d256a8b259faad28b260c065eb5db63197c2a9358a88ea40fe4f65cbd4165ef2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:44:05,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:44:05,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:44:05,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:44:05,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:44:05,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:44:05,997 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:44:05,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:44:05,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:44:05,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:44:06,000 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:44:06,001 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:44:06,001 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:44:06,002 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:44:06,002 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:44:06,003 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:44:06,003 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:44:06,004 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:44:06,004 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:44:06,005 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:44:06,005 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:44:06,006 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:44:06,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:44:06,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:44:06,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:44:06,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:44:06,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:44:06,009 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:44:06,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:44:06,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:44:06,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:44:06,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:44:06,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:44:06,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:06,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:44:06,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:44:06,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:44:06,012 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:44:06,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:44:06,025 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:44:06,026 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:44:06,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:44:06,026 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_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d256a8b259faad28b260c065eb5db63197c2a9358a88ea40fe4f65cbd4165ef2 [2023-11-12 00:44:06,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:44:06,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:44:06,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:44:06,403 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:44:06,404 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:44:06,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2023-11-12 00:44:09,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:44:10,073 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:44:10,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2023-11-12 00:44:10,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/data/bb91a6ce8/08e858dff3f64eef81dee489aae5f16a/FLAGc0c3bd937 [2023-11-12 00:44:10,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/data/bb91a6ce8/08e858dff3f64eef81dee489aae5f16a [2023-11-12 00:44:10,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:44:10,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:44:10,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:10,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:44:10,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:44:10,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:10" (1/1) ... [2023-11-12 00:44:10,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9eed992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:10, skipping insertion in model container [2023-11-12 00:44:10,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:10" (1/1) ... [2023-11-12 00:44:10,291 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:44:12,065 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_b29e690e-26c1-4d36-b730-dd66734efe49/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2023-11-12 00:44:12,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:12,307 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:44:12,382 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3394] [2023-11-12 00:44:12,385 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3396] [2023-11-12 00:44:12,386 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; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3406] [2023-11-12 00:44:12,386 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3413] [2023-11-12 00:44:12,394 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [3604] [2023-11-12 00:44:12,394 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [3607] [2023-11-12 00:44:12,395 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [3609] [2023-11-12 00:44:12,395 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [3614] [2023-11-12 00:44:12,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [3617] [2023-11-12 00:44:12,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3619] [2023-11-12 00:44:12,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [3624] [2023-11-12 00:44:12,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [3627] [2023-11-12 00:44:12,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3629] [2023-11-12 00:44:12,399 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [3634] [2023-11-12 00:44:12,399 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [3637] [2023-11-12 00:44:12,399 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [3639] [2023-11-12 00:44:12,400 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [3657] [2023-11-12 00:44:12,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [3660] [2023-11-12 00:44:12,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [3662] [2023-11-12 00:44:12,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [3667] [2023-11-12 00:44:12,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [3670] [2023-11-12 00:44:12,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [3672] [2023-11-12 00:44:12,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [3677] [2023-11-12 00:44:12,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [3680] [2023-11-12 00:44:12,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [3682] [2023-11-12 00:44:12,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [3687] [2023-11-12 00:44:12,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [3690] [2023-11-12 00:44:12,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [3692] [2023-11-12 00:44:12,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3760] [2023-11-12 00:44:12,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3767] [2023-11-12 00:44:12,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (buffer + (unsigned long )i), "i" (1UL)); [4719-4720] [2023-11-12 00:44:12,532 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_b29e690e-26c1-4d36-b730-dd66734efe49/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2023-11-12 00:44:12,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:12,791 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:44:12,799 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:44:12,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12 WrapperNode [2023-11-12 00:44:12,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:12,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:12,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:44:12,803 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:44:12,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:12,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,084 INFO L138 Inliner]: procedures = 259, calls = 1116, calls flagged for inlining = 115, calls inlined = 111, statements flattened = 2846 [2023-11-12 00:44:13,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:13,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:44:13,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:44:13,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:44:13,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:44:13,331 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:44:13,332 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:44:13,332 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:44:13,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (1/1) ... [2023-11-12 00:44:13,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:13,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:13,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:44:13,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29e690e-26c1-4d36-b730-dd66734efe49/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:44:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_name [2023-11-12 00:44:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_name [2023-11-12 00:44:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:44:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:44:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:44:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:44:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_create [2023-11-12 00:44:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_create [2023-11-12 00:44:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:44:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:44:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-12 00:44:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-12 00:44:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:44:13,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:44:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:44:13,434 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:44:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_event [2023-11-12 00:44:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_event [2023-11-12 00:44:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:44:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:44:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_packet [2023-11-12 00:44:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_packet [2023-11-12 00:44:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-12 00:44:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-12 00:44:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:44:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:44:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:44:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:44:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 00:44:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 00:44:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_notify_readers [2023-11-12 00:44:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_notify_readers [2023-11-12 00:44:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:44:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:44:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:44:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 00:44:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 00:44:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_close_device [2023-11-12 00:44:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_close_device [2023-11-12 00:44:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:44:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_fasync [2023-11-12 00:44:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_fasync [2023-11-12 00:44:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-11-12 00:44:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-11-12 00:44:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mousedev [2023-11-12 00:44:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mousedev [2023-11-12 00:44:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_poll [2023-11-12 00:44:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_poll [2023-11-12 00:44:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:44:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:44:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-12 00:44:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-12 00:44:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2023-11-12 00:44:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2023-11-12 00:44:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:44:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_destroy [2023-11-12 00:44:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_destroy [2023-11-12 00:44:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:44:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:44:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:44:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2023-11-12 00:44:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2023-11-12 00:44:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2023-11-12 00:44:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2023-11-12 00:44:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-12 00:44:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-12 00:44:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_limit_delta [2023-11-12 00:44:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_limit_delta [2023-11-12 00:44:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:44:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:44:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 00:44:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 00:44:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:44:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 00:44:13,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 00:44:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:44:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:44:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_key_event [2023-11-12 00:44:13,449 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_key_event [2023-11-12 00:44:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:44:13,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:44:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2023-11-12 00:44:13,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2023-11-12 00:44:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:44:13,450 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:44:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-12 00:44:13,451 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-12 00:44:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:44:13,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:44:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2023-11-12 00:44:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2023-11-12 00:44:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:44:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure input_close_device [2023-11-12 00:44:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure input_close_device [2023-11-12 00:44:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-12 00:44:13,453 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-12 00:44:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-12 00:44:13,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-12 00:44:13,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 00:44:13,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 00:44:13,454 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_new_minor [2023-11-12 00:44:13,454 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_new_minor [2023-11-12 00:44:13,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:44:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-12 00:44:13,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-12 00:44:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:44:13,455 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_write [2023-11-12 00:44:13,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_write [2023-11-12 00:44:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:44:13,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:44:13,456 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_handle [2023-11-12 00:44:13,456 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_handle [2023-11-12 00:44:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:44:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-12 00:44:13,457 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-12 00:44:13,457 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:44:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mousedev [2023-11-12 00:44:13,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mousedev [2023-11-12 00:44:13,458 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-12 00:44:13,458 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-12 00:44:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_detach_client [2023-11-12 00:44:13,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_detach_client [2023-11-12 00:44:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2023-11-12 00:44:13,459 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2023-11-12 00:44:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-12 00:44:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-12 00:44:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 00:44:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 00:44:13,460 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_minor [2023-11-12 00:44:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_minor [2023-11-12 00:44:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_cleanup [2023-11-12 00:44:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_cleanup [2023-11-12 00:44:13,461 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_open_device [2023-11-12 00:44:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_open_device [2023-11-12 00:44:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_disconnect [2023-11-12 00:44:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_disconnect [2023-11-12 00:44:13,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2023-11-12 00:44:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2023-11-12 00:44:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 00:44:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 00:44:13,463 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:44:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:44:13,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:44:13,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:44:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:44:13,464 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:44:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:44:14,090 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:44:14,094 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:44:14,668 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:44:19,573 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:44:21,342 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:44:21,342 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:44:21,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:21 BoogieIcfgContainer [2023-11-12 00:44:21,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:44:21,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:44:21,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:44:21,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:44:21,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:44:10" (1/3) ... [2023-11-12 00:44:21,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc5fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:21, skipping insertion in model container [2023-11-12 00:44:21,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:12" (2/3) ... [2023-11-12 00:44:21,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc5fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:21, skipping insertion in model container [2023-11-12 00:44:21,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:21" (3/3) ... [2023-11-12 00:44:21,361 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2023-11-12 00:44:21,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:44:21,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:44:21,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:44:21,490 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;@7a13f52c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:44:21,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:44:21,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 677 states, 410 states have (on average 1.3585365853658538) internal successors, (557), 442 states have internal predecessors, (557), 201 states have call successors, (201), 65 states have call predecessors, (201), 64 states have return successors, (197), 194 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-12 00:44:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-12 00:44:21,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:21,540 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:44:21,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:44:21,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash -112162573, now seen corresponding path program 1 times [2023-11-12 00:44:21,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:21,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704973283] [2023-11-12 00:44:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:21,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-11-12 00:44:22,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:22,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704973283] [2023-11-12 00:44:22,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704973283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:22,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:22,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:44:22,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661164988] [2023-11-12 00:44:22,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:22,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:44:22,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:22,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:44:22,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:22,953 INFO L87 Difference]: Start difference. First operand has 677 states, 410 states have (on average 1.3585365853658538) internal successors, (557), 442 states have internal predecessors, (557), 201 states have call successors, (201), 65 states have call predecessors, (201), 64 states have return successors, (197), 194 states have call predecessors, (197), 197 states have call successors, (197) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:44:25,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:29,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:31,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:32,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:44:32,064 INFO L93 Difference]: Finished difference Result 1758 states and 2514 transitions. [2023-11-12 00:44:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:44:32,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 192 [2023-11-12 00:44:32,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:44:32,100 INFO L225 Difference]: With dead ends: 1758 [2023-11-12 00:44:32,100 INFO L226 Difference]: Without dead ends: 1107 [2023-11-12 00:44:32,117 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 [2023-11-12 00:44:32,121 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 648 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:44:32,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1606 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 287 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2023-11-12 00:44:32,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-11-12 00:44:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1092. [2023-11-12 00:44:32,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 665 states have (on average 1.3353383458646617) internal successors, (888), 704 states have internal predecessors, (888), 313 states have call successors, (313), 114 states have call predecessors, (313), 113 states have return successors, (306), 301 states have call predecessors, (306), 306 states have call successors, (306) [2023-11-12 00:44:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1507 transitions. [2023-11-12 00:44:32,374 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1507 transitions. Word has length 192 [2023-11-12 00:44:32,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:44:32,376 INFO L495 AbstractCegarLoop]: Abstraction has 1092 states and 1507 transitions. [2023-11-12 00:44:32,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:44:32,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1507 transitions. [2023-11-12 00:44:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-12 00:44:32,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:32,382 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:44:32,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:44:32,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:44:32,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:32,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1661469889, now seen corresponding path program 1 times [2023-11-12 00:44:32,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:32,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377470975] [2023-11-12 00:44:32,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:32,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:33,324 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-11-12 00:44:33,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:33,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377470975] [2023-11-12 00:44:33,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377470975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:33,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:33,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:44:33,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049724335] [2023-11-12 00:44:33,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:33,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:44:33,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:33,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:44:33,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:33,330 INFO L87 Difference]: Start difference. First operand 1092 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:44:35,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:37,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:39,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:44,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:45,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:47,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:47,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:44:47,987 INFO L93 Difference]: Finished difference Result 3071 states and 4228 transitions. [2023-11-12 00:44:47,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:44:47,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 193 [2023-11-12 00:44:47,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:44:48,015 INFO L225 Difference]: With dead ends: 3071 [2023-11-12 00:44:48,015 INFO L226 Difference]: Without dead ends: 2021 [2023-11-12 00:44:48,022 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 [2023-11-12 00:44:48,024 INFO L413 NwaCegarLoop]: 1127 mSDtfsCounter, 852 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:44:48,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 1894 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 322 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2023-11-12 00:44:48,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2023-11-12 00:44:48,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 2016. [2023-11-12 00:44:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1234 states have (on average 1.3363047001620745) internal successors, (1649), 1301 states have internal predecessors, (1649), 564 states have call successors, (564), 218 states have call predecessors, (564), 217 states have return successors, (557), 548 states have call predecessors, (557), 557 states have call successors, (557) [2023-11-12 00:44:48,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2770 transitions. [2023-11-12 00:44:48,202 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2770 transitions. Word has length 193 [2023-11-12 00:44:48,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:44:48,205 INFO L495 AbstractCegarLoop]: Abstraction has 2016 states and 2770 transitions. [2023-11-12 00:44:48,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:44:48,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2770 transitions. [2023-11-12 00:44:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-12 00:44:48,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:48,213 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:44:48,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:44:48,214 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:44:48,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:48,226 INFO L85 PathProgramCache]: Analyzing trace with hash 975956317, now seen corresponding path program 1 times [2023-11-12 00:44:48,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:48,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918651225] [2023-11-12 00:44:48,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:48,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:48,974 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-11-12 00:44:48,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:48,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918651225] [2023-11-12 00:44:48,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918651225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:48,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:48,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:44:48,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849204587] [2023-11-12 00:44:48,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:48,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:44:48,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:48,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:44:48,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:48,979 INFO L87 Difference]: Start difference. First operand 2016 states and 2770 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-12 00:44:51,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:53,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:56,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:58,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:00,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:00,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:00,930 INFO L93 Difference]: Finished difference Result 5008 states and 6850 transitions. [2023-11-12 00:45:00,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:45:00,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 213 [2023-11-12 00:45:00,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:00,957 INFO L225 Difference]: With dead ends: 5008 [2023-11-12 00:45:00,957 INFO L226 Difference]: Without dead ends: 3042 [2023-11-12 00:45:00,967 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 [2023-11-12 00:45:00,968 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 656 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:00,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1503 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 287 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2023-11-12 00:45:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2023-11-12 00:45:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 3017. [2023-11-12 00:45:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 1844 states have (on average 1.3378524945770065) internal successors, (2467), 1945 states have internal predecessors, (2467), 824 states have call successors, (824), 359 states have call predecessors, (824), 348 states have return successors, (825), 786 states have call predecessors, (825), 817 states have call successors, (825) [2023-11-12 00:45:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 4116 transitions. [2023-11-12 00:45:01,160 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 4116 transitions. Word has length 213 [2023-11-12 00:45:01,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:01,162 INFO L495 AbstractCegarLoop]: Abstraction has 3017 states and 4116 transitions. [2023-11-12 00:45:01,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-12 00:45:01,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 4116 transitions. [2023-11-12 00:45:01,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-12 00:45:01,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:01,166 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:45:01,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:45:01,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:45:01,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:01,168 INFO L85 PathProgramCache]: Analyzing trace with hash -948942856, now seen corresponding path program 1 times [2023-11-12 00:45:01,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:45:01,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950201341] [2023-11-12 00:45:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:45:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-11-12 00:45:02,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:45:02,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950201341] [2023-11-12 00:45:02,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950201341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:02,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:02,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:45:02,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34389520] [2023-11-12 00:45:02,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:02,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:45:02,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:45:02,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:45:02,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:45:02,493 INFO L87 Difference]: Start difference. First operand 3017 states and 4116 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 4 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24)