./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 13:00:26,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 13:00:26,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 13:00:26,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 13:00:26,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 13:00:26,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 13:00:26,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 13:00:26,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 13:00:26,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 13:00:26,899 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 13:00:26,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 13:00:26,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 13:00:26,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 13:00:26,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 13:00:26,900 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 13:00:26,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 13:00:26,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 13:00:26,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 13:00:26,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 13:00:26,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 13:00:26,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 13:00:26,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 13:00:26,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 13:00:26,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 13:00:26,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 13:00:26,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 13:00:26,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 13:00:26,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 13:00:26,903 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 [2024-11-07 13:00:27,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 13:00:27,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 13:00:27,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 13:00:27,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 13:00:27,193 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 13:00:27,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2024-11-07 13:00:28,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 13:00:28,985 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 13:00:28,987 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2024-11-07 13:00:29,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a53669000/ab21623a2eee41c693b1f2edf1d2ea78/FLAG74e8ded5f [2024-11-07 13:00:29,070 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a53669000/ab21623a2eee41c693b1f2edf1d2ea78 [2024-11-07 13:00:29,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 13:00:29,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 13:00:29,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 13:00:29,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 13:00:29,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 13:00:29,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:29" (1/1) ... [2024-11-07 13:00:29,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a52aa86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:29, skipping insertion in model container [2024-11-07 13:00:29,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:00:29" (1/1) ... [2024-11-07 13:00:29,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 13:00:29,920 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i[163507,163520] [2024-11-07 13:00:30,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 13:00:30,293 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 13:00:30,452 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"); [5277] [2024-11-07 13:00:30,454 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)); [5284] [2024-11-07 13:00:30,454 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5292-5293] [2024-11-07 13:00:30,455 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5301-5302] [2024-11-07 13:00:30,459 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; incl %0": "+m" (v->counter)); [5349] [2024-11-07 13:00:30,461 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [5357-5358] [2024-11-07 13:00:30,482 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i[163507,163520] [2024-11-07 13:00:30,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5939] [2024-11-07 13:00:30,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5942] [2024-11-07 13:00:30,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5945] [2024-11-07 13:00:30,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5948] [2024-11-07 13:00:30,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5951] [2024-11-07 13:00:30,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5967-5968] [2024-11-07 13:00:30,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5971-5972] [2024-11-07 13:00:30,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5975-5976] [2024-11-07 13:00:30,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5979-5980] [2024-11-07 13:00:30,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5983-5984] [2024-11-07 13:00:30,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6007-6008] [2024-11-07 13:00:30,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6011-6012] [2024-11-07 13:00:30,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6015-6016] [2024-11-07 13:00:30,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6019-6020] [2024-11-07 13:00:30,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6023-6024] [2024-11-07 13:00:30,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6152] [2024-11-07 13:00:30,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6155] [2024-11-07 13:00:30,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6158] [2024-11-07 13:00:30,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6161] [2024-11-07 13:00:30,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6164] [2024-11-07 13:00:30,514 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int *)argp), "i" (4UL)); [6176-6177] [2024-11-07 13:00:30,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6194-6195] [2024-11-07 13:00:30,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6198-6199] [2024-11-07 13:00:30,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6202-6203] [2024-11-07 13:00:30,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6206-6207] [2024-11-07 13:00:30,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6210-6211] [2024-11-07 13:00:30,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" (p), "i" (4UL)); [6223-6224] [2024-11-07 13:00:30,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6237-6238] [2024-11-07 13:00:30,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6241-6242] [2024-11-07 13:00:30,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6245-6246] [2024-11-07 13:00:30,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6249-6250] [2024-11-07 13:00:30,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6253-6254] [2024-11-07 13:00:30,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" (p), "i" (4UL)); [6266-6267] [2024-11-07 13:00:30,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6304-6305] [2024-11-07 13:00:30,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6308-6309] [2024-11-07 13:00:30,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6312-6313] [2024-11-07 13:00:30,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6316-6317] [2024-11-07 13:00:30,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6320-6321] [2024-11-07 13:00:30,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___2), "=r" (__val_gu___2): "0" ((int *)argp), "i" (4UL)); [6333-6334] [2024-11-07 13:00:30,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 13:00:30,671 INFO L204 MainTranslator]: Completed translation [2024-11-07 13:00:30,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30 WrapperNode [2024-11-07 13:00:30,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 13:00:30,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 13:00:30,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 13:00:30,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 13:00:30,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:30,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:30,805 INFO L138 Inliner]: procedures = 176, calls = 475, calls flagged for inlining = 92, calls inlined = 85, statements flattened = 1980 [2024-11-07 13:00:30,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 13:00:30,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 13:00:30,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 13:00:30,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 13:00:30,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:30,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:30,833 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:31,058 INFO L175 MemorySlicer]: Split 190 memory accesses to 9 slices as follows [2, 7, 1, 24, 20, 2, 1, 120, 13]. 63 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 1, 0, 15, 2, 1, 10, 0]. The 86 writes are split as follows [0, 6, 0, 24, 2, 0, 0, 41, 13]. [2024-11-07 13:00:31,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:31,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:31,133 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:31,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:31,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:31,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:31,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 13:00:31,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 13:00:31,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 13:00:31,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 13:00:31,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (1/1) ... [2024-11-07 13:00:31,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 13:00:31,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 13:00:31,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 13:00:31,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 13:00:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-07 13:00:31,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-07 13:00:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2024-11-07 13:00:31,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2024-11-07 13:00:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2024-11-07 13:00:31,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2024-11-07 13:00:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 13:00:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 13:00:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 13:00:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 13:00:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 13:00:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 13:00:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-07 13:00:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-07 13:00:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-07 13:00:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-07 13:00:31,248 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-07 13:00:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-07 13:00:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-07 13:00:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-07 13:00:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-07 13:00:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-07 13:00:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-07 13:00:31,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-07 13:00:31,250 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-07 13:00:31,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-07 13:00:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-07 13:00:31,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-07 13:00:31,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-07 13:00:31,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-07 13:00:31,250 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-07 13:00:31,251 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 13:00:31,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 13:00:31,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 13:00:31,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-07 13:00:31,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-07 13:00:31,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-07 13:00:31,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-07 13:00:31,252 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-07 13:00:31,252 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-07 13:00:31,252 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2024-11-07 13:00:31,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2024-11-07 13:00:31,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-07 13:00:31,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-07 13:00:31,252 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-07 13:00:31,252 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-07 13:00:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2024-11-07 13:00:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2024-11-07 13:00:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 13:00:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 13:00:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 13:00:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-07 13:00:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-07 13:00:31,254 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-07 13:00:31,254 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-07 13:00:31,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-07 13:00:31,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-07 13:00:31,256 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-07 13:00:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-07 13:00:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-07 13:00:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-07 13:00:31,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-07 13:00:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-07 13:00:31,257 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-07 13:00:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2024-11-07 13:00:31,257 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2024-11-07 13:00:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 13:00:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 13:00:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 13:00:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 13:00:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 13:00:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 13:00:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 13:00:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-07 13:00:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-07 13:00:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-07 13:00:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2024-11-07 13:00:31,258 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2024-11-07 13:00:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2024-11-07 13:00:31,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2024-11-07 13:00:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-07 13:00:31,258 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-07 13:00:31,259 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-07 13:00:31,259 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2024-11-07 13:00:31,259 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-07 13:00:31,259 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-07 13:00:31,259 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-07 13:00:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-07 13:00:31,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-07 13:00:31,260 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 13:00:31,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 13:00:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2024-11-07 13:00:31,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2024-11-07 13:00:31,741 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 13:00:31,745 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 13:00:31,822 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-07 13:00:37,724 INFO L? ?]: Removed 1116 outVars from TransFormulas that were not future-live. [2024-11-07 13:00:37,725 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 13:00:37,754 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 13:00:37,754 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-07 13:00:37,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:37 BoogieIcfgContainer [2024-11-07 13:00:37,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 13:00:37,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 13:00:37,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 13:00:37,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 13:00:37,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:00:29" (1/3) ... [2024-11-07 13:00:37,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a8b4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:37, skipping insertion in model container [2024-11-07 13:00:37,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:00:30" (2/3) ... [2024-11-07 13:00:37,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a8b4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:37, skipping insertion in model container [2024-11-07 13:00:37,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:37" (3/3) ... [2024-11-07 13:00:37,766 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2024-11-07 13:00:37,779 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 13:00:37,780 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 13:00:37,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 13:00:37,863 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, 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;@2f5c22d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 13:00:37,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 13:00:37,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 698 states, 532 states have (on average 1.394736842105263) internal successors, (742), 547 states have internal predecessors, (742), 124 states have call successors, (124), 41 states have call predecessors, (124), 40 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-07 13:00:37,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 13:00:37,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:00:37,883 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:00:37,883 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:00:37,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:00:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1247263065, now seen corresponding path program 1 times [2024-11-07 13:00:37,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:00:37,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910512056] [2024-11-07 13:00:37,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:00:37,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:00:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:00:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 13:00:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:00:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 13:00:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 13:00:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 13:00:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 13:00:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 13:00:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:00:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 13:00:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-07 13:00:38,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:00:38,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910512056] [2024-11-07 13:00:38,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910512056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:00:38,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:00:38,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 13:00:38,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852268497] [2024-11-07 13:00:38,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:00:38,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 13:00:38,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:00:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 13:00:38,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 13:00:38,907 INFO L87 Difference]: Start difference. First operand has 698 states, 532 states have (on average 1.394736842105263) internal successors, (742), 547 states have internal predecessors, (742), 124 states have call successors, (124), 41 states have call predecessors, (124), 40 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-07 13:00:42,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:00:46,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:00:48,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:00:48,964 INFO L93 Difference]: Finished difference Result 2173 states and 3186 transitions. [2024-11-07 13:00:48,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 13:00:48,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 78 [2024-11-07 13:00:48,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:00:48,985 INFO L225 Difference]: With dead ends: 2173 [2024-11-07 13:00:48,986 INFO L226 Difference]: Without dead ends: 1464 [2024-11-07 13:00:48,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 13:00:48,996 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1335 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 316 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-07 13:00:48,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 1779 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 865 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2024-11-07 13:00:49,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2024-11-07 13:00:49,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1326. [2024-11-07 13:00:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1022 states have (on average 1.37573385518591) internal successors, (1406), 1040 states have internal predecessors, (1406), 225 states have call successors, (225), 79 states have call predecessors, (225), 78 states have return successors, (224), 220 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-07 13:00:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1855 transitions. [2024-11-07 13:00:49,179 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1855 transitions. Word has length 78 [2024-11-07 13:00:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:00:49,181 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 1855 transitions. [2024-11-07 13:00:49,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-07 13:00:49,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1855 transitions. [2024-11-07 13:00:49,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 13:00:49,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:00:49,190 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:00:49,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 13:00:49,190 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:00:49,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:00:49,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1079685925, now seen corresponding path program 1 times [2024-11-07 13:00:49,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:00:49,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548386861] [2024-11-07 13:00:49,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:00:49,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:00:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:00:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 13:00:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:00:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 13:00:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 13:00:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 13:00:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 13:00:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 13:00:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:00:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 13:00:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-07 13:00:49,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:00:49,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548386861] [2024-11-07 13:00:49,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548386861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:00:49,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:00:49,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 13:00:49,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266483849] [2024-11-07 13:00:49,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:00:49,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 13:00:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:00:49,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 13:00:49,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 13:00:49,767 INFO L87 Difference]: Start difference. First operand 1326 states and 1855 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-07 13:00:53,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:00:55,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:00:55,983 INFO L93 Difference]: Finished difference Result 4203 states and 5995 transitions. [2024-11-07 13:00:55,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 13:00:55,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 82 [2024-11-07 13:00:55,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:00:56,005 INFO L225 Difference]: With dead ends: 4203 [2024-11-07 13:00:56,006 INFO L226 Difference]: Without dead ends: 2893 [2024-11-07 13:00:56,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-07 13:00:56,012 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 1362 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 315 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-07 13:00:56,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 3231 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 1594 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2024-11-07 13:00:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2024-11-07 13:00:56,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2685. [2024-11-07 13:00:56,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2070 states have (on average 1.3777777777777778) internal successors, (2852), 2112 states have internal predecessors, (2852), 454 states have call successors, (454), 157 states have call predecessors, (454), 160 states have return successors, (499), 445 states have call predecessors, (499), 453 states have call successors, (499) [2024-11-07 13:00:56,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3805 transitions. [2024-11-07 13:00:56,181 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3805 transitions. Word has length 82 [2024-11-07 13:00:56,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:00:56,181 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3805 transitions. [2024-11-07 13:00:56,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-07 13:00:56,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3805 transitions. [2024-11-07 13:00:56,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-07 13:00:56,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:00:56,189 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:00:56,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 13:00:56,189 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:00:56,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:00:56,190 INFO L85 PathProgramCache]: Analyzing trace with hash -756578280, now seen corresponding path program 1 times [2024-11-07 13:00:56,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:00:56,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555813568] [2024-11-07 13:00:56,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:00:56,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:00:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:00:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 13:00:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:00:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 13:00:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 13:00:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 13:00:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 13:00:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 13:00:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:00:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 13:00:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 13:00:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 13:00:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:00:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:00:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 13:00:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:00:56,697 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-07 13:00:56,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:00:56,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555813568] [2024-11-07 13:00:56,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555813568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:00:56,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:00:56,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 13:00:56,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120429974] [2024-11-07 13:00:56,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:00:56,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 13:00:56,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:00:56,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 13:00:56,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 13:00:56,701 INFO L87 Difference]: Start difference. First operand 2685 states and 3805 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 13:01:00,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:04,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:08,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:12,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:15,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:01:15,338 INFO L93 Difference]: Finished difference Result 7559 states and 10766 transitions. [2024-11-07 13:01:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 13:01:15,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2024-11-07 13:01:15,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:01:15,374 INFO L225 Difference]: With dead ends: 7559 [2024-11-07 13:01:15,375 INFO L226 Difference]: Without dead ends: 4898 [2024-11-07 13:01:15,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-07 13:01:15,388 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 1998 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 845 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-11-07 13:01:15,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2084 Valid, 2124 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1309 Invalid, 4 Unknown, 0 Unchecked, 18.2s Time] [2024-11-07 13:01:15,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2024-11-07 13:01:15,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4306. [2024-11-07 13:01:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4306 states, 3326 states have (on average 1.3743235117257968) internal successors, (4571), 3383 states have internal predecessors, (4571), 697 states have call successors, (697), 257 states have call predecessors, (697), 282 states have return successors, (816), 699 states have call predecessors, (816), 696 states have call successors, (816) [2024-11-07 13:01:15,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 6084 transitions. [2024-11-07 13:01:15,637 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 6084 transitions. Word has length 128 [2024-11-07 13:01:15,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:01:15,640 INFO L471 AbstractCegarLoop]: Abstraction has 4306 states and 6084 transitions. [2024-11-07 13:01:15,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 13:01:15,640 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 6084 transitions. [2024-11-07 13:01:15,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-07 13:01:15,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:01:15,656 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:01:15,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 13:01:15,659 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:01:15,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:01:15,659 INFO L85 PathProgramCache]: Analyzing trace with hash 15639102, now seen corresponding path program 1 times [2024-11-07 13:01:15,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:01:15,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390563037] [2024-11-07 13:01:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:01:15,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:01:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:15,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:01:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:15,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 13:01:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:15,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:01:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:15,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 13:01:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 13:01:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 13:01:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 13:01:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 13:01:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:01:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 13:01:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 13:01:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:01:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:01:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 13:01:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:01:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 13:01:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 13:01:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-07 13:01:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-07 13:01:16,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:01:16,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390563037] [2024-11-07 13:01:16,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390563037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:01:16,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:01:16,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 13:01:16,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590899369] [2024-11-07 13:01:16,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:01:16,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 13:01:16,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:01:16,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 13:01:16,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 13:01:16,158 INFO L87 Difference]: Start difference. First operand 4306 states and 6084 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-07 13:01:20,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:24,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:28,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:30,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:01:30,989 INFO L93 Difference]: Finished difference Result 11064 states and 15579 transitions. [2024-11-07 13:01:30,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 13:01:30,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2024-11-07 13:01:30,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:01:31,030 INFO L225 Difference]: With dead ends: 11064 [2024-11-07 13:01:31,030 INFO L226 Difference]: Without dead ends: 6782 [2024-11-07 13:01:31,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-07 13:01:31,046 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 1241 mSDsluCounter, 2354 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 439 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-07 13:01:31,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 3231 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 1705 Invalid, 3 Unknown, 0 Unchecked, 14.5s Time] [2024-11-07 13:01:31,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6782 states. [2024-11-07 13:01:31,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6782 to 6044. [2024-11-07 13:01:31,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 4644 states have (on average 1.3613264427217915) internal successors, (6322), 4741 states have internal predecessors, (6322), 962 states have call successors, (962), 398 states have call predecessors, (962), 437 states have return successors, (1129), 964 states have call predecessors, (1129), 961 states have call successors, (1129) [2024-11-07 13:01:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8413 transitions. [2024-11-07 13:01:31,442 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8413 transitions. Word has length 149 [2024-11-07 13:01:31,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:01:31,442 INFO L471 AbstractCegarLoop]: Abstraction has 6044 states and 8413 transitions. [2024-11-07 13:01:31,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-07 13:01:31,443 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8413 transitions. [2024-11-07 13:01:31,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-07 13:01:31,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:01:31,455 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:01:31,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 13:01:31,455 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:01:31,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:01:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1420180406, now seen corresponding path program 1 times [2024-11-07 13:01:31,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:01:31,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391327279] [2024-11-07 13:01:31,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:01:31,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:01:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:01:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 13:01:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:01:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 13:01:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 13:01:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 13:01:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 13:01:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 13:01:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:01:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 13:01:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 13:01:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 13:01:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 13:01:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 13:01:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:01:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:01:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 13:01:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:31,939 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-07 13:01:31,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:01:31,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391327279] [2024-11-07 13:01:31,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391327279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:01:31,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:01:31,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 13:01:31,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149752648] [2024-11-07 13:01:31,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:01:31,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 13:01:31,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:01:31,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 13:01:31,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 13:01:31,942 INFO L87 Difference]: Start difference. First operand 6044 states and 8413 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-07 13:01:35,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:39,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:43,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:47,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:51,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 13:01:54,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 13:01:54,624 INFO L93 Difference]: Finished difference Result 16168 states and 22563 transitions. [2024-11-07 13:01:54,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 13:01:54,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 151 [2024-11-07 13:01:54,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 13:01:54,678 INFO L225 Difference]: With dead ends: 16168 [2024-11-07 13:01:54,679 INFO L226 Difference]: Without dead ends: 10159 [2024-11-07 13:01:54,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-07 13:01:54,698 INFO L432 NwaCegarLoop]: 680 mSDtfsCounter, 1961 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 696 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2024-11-07 13:01:54,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 2977 Invalid, 2612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 1911 Invalid, 5 Unknown, 0 Unchecked, 22.3s Time] [2024-11-07 13:01:54,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10159 states. [2024-11-07 13:01:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10159 to 8975. [2024-11-07 13:01:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8975 states, 6966 states have (on average 1.3607522250933104) internal successors, (9479), 7098 states have internal predecessors, (9479), 1335 states have call successors, (1335), 608 states have call predecessors, (1335), 673 states have return successors, (1570), 1352 states have call predecessors, (1570), 1334 states have call successors, (1570) [2024-11-07 13:01:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8975 states to 8975 states and 12384 transitions. [2024-11-07 13:01:55,154 INFO L78 Accepts]: Start accepts. Automaton has 8975 states and 12384 transitions. Word has length 151 [2024-11-07 13:01:55,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 13:01:55,155 INFO L471 AbstractCegarLoop]: Abstraction has 8975 states and 12384 transitions. [2024-11-07 13:01:55,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-07 13:01:55,155 INFO L276 IsEmpty]: Start isEmpty. Operand 8975 states and 12384 transitions. [2024-11-07 13:01:55,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 13:01:55,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 13:01:55,167 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 13:01:55,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 13:01:55,168 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 13:01:55,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 13:01:55,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1479340687, now seen corresponding path program 1 times [2024-11-07 13:01:55,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 13:01:55,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607519501] [2024-11-07 13:01:55,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 13:01:55,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 13:01:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 13:01:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 13:01:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:01:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 13:01:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 13:01:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 13:01:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 13:01:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 13:01:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 13:01:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-07 13:01:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 13:01:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 13:01:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 13:01:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:01:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 13:01:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 13:01:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 13:01:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 13:01:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 13:01:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-07 13:01:55,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 13:01:55,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607519501] [2024-11-07 13:01:55,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607519501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 13:01:55,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 13:01:55,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 13:01:55,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318431864] [2024-11-07 13:01:55,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 13:01:55,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 13:01:55,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 13:01:55,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 13:01:55,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-07 13:01:55,682 INFO L87 Difference]: Start difference. First operand 8975 states and 12384 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)