./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 0e0057cc 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_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/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_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:18:47,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:18:47,647 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:18:47,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:18:47,652 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:18:47,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:18:47,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:18:47,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:18:47,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:18:47,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:18:47,697 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:18:47,697 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:18:47,698 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:18:47,698 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:18:47,699 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:18:47,700 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:18:47,700 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:18:47,701 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:18:47,701 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:18:47,702 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:18:47,712 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:18:47,717 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:18:47,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:18:47,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:18:47,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:18:47,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:18:47,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:18:47,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:18:47,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:18:47,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:18:47,724 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:18:47,724 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:18:47,724 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:18:47,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:18:47,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:47,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:18:47,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:18:47,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:18:47,726 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:18:47,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:18:47,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:18:47,727 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:18:47,727 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:18:47,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:18:47,728 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_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d256a8b259faad28b260c065eb5db63197c2a9358a88ea40fe4f65cbd4165ef2 [2023-11-24 23:18:48,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:18:48,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:18:48,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:18:48,119 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:18:48,120 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:18:48,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/../../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 [2023-11-24 23:18:51,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:18:51,804 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:18:51,804 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/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 [2023-11-24 23:18:51,846 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/data/e72e6e69f/7090297296a642a5b7311c8370c7e989/FLAGe851c0e9a [2023-11-24 23:18:51,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/data/e72e6e69f/7090297296a642a5b7311c8370c7e989 [2023-11-24 23:18:51,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:18:51,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:18:51,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:51,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:18:51,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:18:51,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:51" (1/1) ... [2023-11-24 23:18:51,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5170cb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:51, skipping insertion in model container [2023-11-24 23:18:51,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:51" (1/1) ... [2023-11-24 23:18:52,012 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:18:53,514 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_3097aaad-c812-4af2-b22d-30514547f4bf/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] [2023-11-24 23:18:53,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:53,687 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:18:53,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3394] [2023-11-24 23:18:53,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3396] [2023-11-24 23:18:53,769 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] [2023-11-24 23:18:53,770 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] [2023-11-24 23:18:53,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [3604] [2023-11-24 23:18:53,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [3607] [2023-11-24 23:18:53,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [3609] [2023-11-24 23:18:53,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [3614] [2023-11-24 23:18:53,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [3617] [2023-11-24 23:18:53,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3619] [2023-11-24 23:18:53,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [3624] [2023-11-24 23:18:53,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [3627] [2023-11-24 23:18:53,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3629] [2023-11-24 23:18:53,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [3634] [2023-11-24 23:18:53,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [3637] [2023-11-24 23:18:53,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [3639] [2023-11-24 23:18:53,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [3657] [2023-11-24 23:18:53,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [3660] [2023-11-24 23:18:53,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [3662] [2023-11-24 23:18:53,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [3667] [2023-11-24 23:18:53,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [3670] [2023-11-24 23:18:53,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [3672] [2023-11-24 23:18:53,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [3677] [2023-11-24 23:18:53,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [3680] [2023-11-24 23:18:53,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [3682] [2023-11-24 23:18:53,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [3687] [2023-11-24 23:18:53,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [3690] [2023-11-24 23:18:53,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [3692] [2023-11-24 23:18:53,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3760] [2023-11-24 23:18:53,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3767] [2023-11-24 23:18:53,851 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] [2023-11-24 23:18:53,920 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_3097aaad-c812-4af2-b22d-30514547f4bf/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] [2023-11-24 23:18:53,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:54,109 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:18:54,116 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:18:54,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54 WrapperNode [2023-11-24 23:18:54,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:54,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:54,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:18:54,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:18:54,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,397 INFO L138 Inliner]: procedures = 259, calls = 1116, calls flagged for inlining = 115, calls inlined = 111, statements flattened = 2878 [2023-11-24 23:18:54,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:54,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:18:54,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:18:54,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:18:54,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:18:54,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:18:54,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:18:54,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:18:54,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (1/1) ... [2023-11-24 23:18:54,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:54,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:18:54,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:18:54,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3097aaad-c812-4af2-b22d-30514547f4bf/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:18:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_name [2023-11-24 23:18:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_name [2023-11-24 23:18:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:18:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:18:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:18:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:18:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_create [2023-11-24 23:18:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_create [2023-11-24 23:18:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:18:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:18:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-24 23:18:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-24 23:18:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:18:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:18:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-24 23:18:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-24 23:18:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_event [2023-11-24 23:18:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_event [2023-11-24 23:18:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-24 23:18:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-24 23:18:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_packet [2023-11-24 23:18:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_packet [2023-11-24 23:18:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-24 23:18:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-24 23:18:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:18:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:18:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:18:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:18:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-24 23:18:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-24 23:18:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_notify_readers [2023-11-24 23:18:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_notify_readers [2023-11-24 23:18:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-24 23:18:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-24 23:18:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:18:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-24 23:18:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-24 23:18:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_close_device [2023-11-24 23:18:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_close_device [2023-11-24 23:18:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:18:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_fasync [2023-11-24 23:18:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_fasync [2023-11-24 23:18:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-11-24 23:18:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-11-24 23:18:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mousedev [2023-11-24 23:18:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mousedev [2023-11-24 23:18:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_poll [2023-11-24 23:18:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_poll [2023-11-24 23:18:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:18:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:18:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-24 23:18:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-24 23:18:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2023-11-24 23:18:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2023-11-24 23:18:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:18:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_destroy [2023-11-24 23:18:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_destroy [2023-11-24 23:18:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:18:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:18:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:18:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2023-11-24 23:18:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2023-11-24 23:18:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2023-11-24 23:18:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2023-11-24 23:18:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-24 23:18:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-24 23:18:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_limit_delta [2023-11-24 23:18:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_limit_delta [2023-11-24 23:18:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-24 23:18:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-24 23:18:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-24 23:18:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-24 23:18:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:18:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-24 23:18:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-24 23:18:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:18:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:18:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_key_event [2023-11-24 23:18:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_key_event [2023-11-24 23:18:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:18:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:18:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2023-11-24 23:18:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2023-11-24 23:18:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-24 23:18:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-24 23:18:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-24 23:18:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-24 23:18:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:18:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:18:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2023-11-24 23:18:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2023-11-24 23:18:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:18:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure input_close_device [2023-11-24 23:18:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure input_close_device [2023-11-24 23:18:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-24 23:18:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-24 23:18:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-24 23:18:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-24 23:18:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-24 23:18:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-24 23:18:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_new_minor [2023-11-24 23:18:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_new_minor [2023-11-24 23:18:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:18:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-24 23:18:54,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-24 23:18:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:18:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_write [2023-11-24 23:18:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_write [2023-11-24 23:18:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:18:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:18:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_handle [2023-11-24 23:18:54,766 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_handle [2023-11-24 23:18:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:18:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-24 23:18:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-24 23:18:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-24 23:18:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mousedev [2023-11-24 23:18:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mousedev [2023-11-24 23:18:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-24 23:18:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-24 23:18:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_detach_client [2023-11-24 23:18:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_detach_client [2023-11-24 23:18:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2023-11-24 23:18:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2023-11-24 23:18:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-24 23:18:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-24 23:18:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-24 23:18:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-24 23:18:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_minor [2023-11-24 23:18:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_minor [2023-11-24 23:18:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_cleanup [2023-11-24 23:18:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_cleanup [2023-11-24 23:18:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_open_device [2023-11-24 23:18:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_open_device [2023-11-24 23:18:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_disconnect [2023-11-24 23:18:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_disconnect [2023-11-24 23:18:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2023-11-24 23:18:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2023-11-24 23:18:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-24 23:18:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-24 23:18:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-24 23:18:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-24 23:18:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:18:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:18:54,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:18:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-24 23:18:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-24 23:18:55,387 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:18:55,391 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:18:55,765 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:19:00,226 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:01,589 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:01,589 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:19:01,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:01 BoogieIcfgContainer [2023-11-24 23:19:01,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:01,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:01,596 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:01,599 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:01,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:18:51" (1/3) ... [2023-11-24 23:19:01,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0ecbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:01, skipping insertion in model container [2023-11-24 23:19:01,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:54" (2/3) ... [2023-11-24 23:19:01,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0ecbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:01, skipping insertion in model container [2023-11-24 23:19:01,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:01" (3/3) ... [2023-11-24 23:19:01,604 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2023-11-24 23:19:01,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:01,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:19:01,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:01,733 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;@7c10a941, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:01,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:19:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 679 states, 412 states have (on average 1.3567961165048543) internal successors, (559), 442 states have internal predecessors, (559), 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) [2023-11-24 23:19:01,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-24 23:19:01,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:01,812 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] [2023-11-24 23:19:01,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:01,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:01,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2110300453, now seen corresponding path program 1 times [2023-11-24 23:19:01,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:01,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20762930] [2023-11-24 23:19:01,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:01,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-11-24 23:19:03,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:03,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20762930] [2023-11-24 23:19:03,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20762930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:03,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:03,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:03,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517877999] [2023-11-24 23:19:03,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:03,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:03,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:03,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:03,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:03,205 INFO L87 Difference]: Start difference. First operand has 679 states, 412 states have (on average 1.3567961165048543) internal successors, (559), 442 states have internal predecessors, (559), 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) [2023-11-24 23:19:05,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:07,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:09,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:11,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:13,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-24 23:19:15,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-24 23:19:17,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:18,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:18,197 INFO L93 Difference]: Finished difference Result 1762 states and 2518 transitions. [2023-11-24 23:19:18,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:19:18,200 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 [2023-11-24 23:19:18,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:18,231 INFO L225 Difference]: With dead ends: 1762 [2023-11-24 23:19:18,232 INFO L226 Difference]: Without dead ends: 1109 [2023-11-24 23:19:18,244 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 [2023-11-24 23:19:18,248 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 648 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:18,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1608 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 287 Invalid, 4 Unknown, 0 Unchecked, 14.8s Time] [2023-11-24 23:19:18,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2023-11-24 23:19:18,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1094. [2023-11-24 23:19:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 667 states have (on average 1.3343328335832083) internal successors, (890), 704 states have internal predecessors, (890), 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) [2023-11-24 23:19:18,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1509 transitions. [2023-11-24 23:19:18,439 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1509 transitions. Word has length 192 [2023-11-24 23:19:18,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:18,443 INFO L495 AbstractCegarLoop]: Abstraction has 1094 states and 1509 transitions. [2023-11-24 23:19:18,443 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) [2023-11-24 23:19:18,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1509 transitions. [2023-11-24 23:19:18,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-24 23:19:18,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:18,459 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] [2023-11-24 23:19:18,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:19:18,459 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:18,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:18,460 INFO L85 PathProgramCache]: Analyzing trace with hash -78960179, now seen corresponding path program 1 times [2023-11-24 23:19:18,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:18,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364578554] [2023-11-24 23:19:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:18,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-11-24 23:19:19,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:19,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364578554] [2023-11-24 23:19:19,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364578554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:19,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:19,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:19,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565838315] [2023-11-24 23:19:19,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:19,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:19,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:19,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:19,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:19,450 INFO L87 Difference]: Start difference. First operand 1094 states and 1509 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) [2023-11-24 23:19:21,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:23,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:26,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:30,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-24 23:19:32,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-24 23:19:35,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-24 23:19:37,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:37,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:37,474 INFO L93 Difference]: Finished difference Result 3077 states and 4234 transitions. [2023-11-24 23:19:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:19:37,475 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 [2023-11-24 23:19:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:37,496 INFO L225 Difference]: With dead ends: 3077 [2023-11-24 23:19:37,496 INFO L226 Difference]: Without dead ends: 2025 [2023-11-24 23:19:37,502 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 [2023-11-24 23:19:37,503 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 854 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:37,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1898 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 321 Invalid, 6 Unknown, 0 Unchecked, 17.9s Time] [2023-11-24 23:19:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2023-11-24 23:19:37,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 2020. [2023-11-24 23:19:37,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 1238 states have (on average 1.3352180936995153) internal successors, (1653), 1301 states have internal predecessors, (1653), 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) [2023-11-24 23:19:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2774 transitions. [2023-11-24 23:19:37,684 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2774 transitions. Word has length 193 [2023-11-24 23:19:37,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:37,685 INFO L495 AbstractCegarLoop]: Abstraction has 2020 states and 2774 transitions. [2023-11-24 23:19:37,685 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) [2023-11-24 23:19:37,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2774 transitions. [2023-11-24 23:19:37,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-24 23:19:37,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:37,692 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] [2023-11-24 23:19:37,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:19:37,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:37,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:37,702 INFO L85 PathProgramCache]: Analyzing trace with hash -26663443, now seen corresponding path program 1 times [2023-11-24 23:19:37,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:37,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873202409] [2023-11-24 23:19:37,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:37,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:38,432 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-11-24 23:19:38,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873202409] [2023-11-24 23:19:38,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873202409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:38,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:38,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435378775] [2023-11-24 23:19:38,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:38,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:38,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:38,441 INFO L87 Difference]: Start difference. First operand 2020 states and 2774 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) [2023-11-24 23:19:40,465 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 [] [2023-11-24 23:19:43,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-24 23:19:48,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []