./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme --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 0.2.4-dev-0e0057c [2023-11-26 11:43:43,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:43,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 11:43:43,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:43,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:43,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:43,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:43,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:43,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:43:43,916 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:43:43,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:43:43,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:43:43,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:43,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:43,920 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:43,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:43,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:43:43,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:43,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:43,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:43:43,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:43:43,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:43:43,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:43,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:43,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:43,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:43,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:43:43,928 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:43:43,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:43,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:43,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:43:43,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:43:43,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:43,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:43:43,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:43:43,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:43:43,933 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:43:43,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:43:43,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:43:43,935 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 [2023-11-26 11:43:44,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:44,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:44,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:44,320 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:44,321 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:44,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/../../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 [2023-11-26 11:43:47,461 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:43:48,077 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:43:48,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/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 [2023-11-26 11:43:48,126 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/data/10e2de07f/2193cbf143a345df9bbf9f7d904e0f0b/FLAG63075a5a0 [2023-11-26 11:43:48,150 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/data/10e2de07f/2193cbf143a345df9bbf9f7d904e0f0b [2023-11-26 11:43:48,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:43:48,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:43:48,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:48,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:43:48,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:43:48,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ed5121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48, skipping insertion in model container [2023-11-26 11:43:48,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,331 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:43:49,604 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/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] [2023-11-26 11:43:50,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:50,124 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:43:50,351 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] [2023-11-26 11:43:50,353 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] [2023-11-26 11:43:50,354 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] [2023-11-26 11:43:50,356 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] [2023-11-26 11:43:50,360 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] [2023-11-26 11:43:50,361 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] [2023-11-26 11:43:50,388 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/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] [2023-11-26 11:43:50,420 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] [2023-11-26 11:43:50,423 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] [2023-11-26 11:43:50,423 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] [2023-11-26 11:43:50,424 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] [2023-11-26 11:43:50,424 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] [2023-11-26 11:43:50,425 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] [2023-11-26 11:43:50,426 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] [2023-11-26 11:43:50,426 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] [2023-11-26 11:43:50,426 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] [2023-11-26 11:43:50,427 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] [2023-11-26 11:43:50,428 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] [2023-11-26 11:43:50,429 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] [2023-11-26 11:43:50,429 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] [2023-11-26 11:43:50,430 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] [2023-11-26 11:43:50,430 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] [2023-11-26 11:43:50,450 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] [2023-11-26 11:43:50,452 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] [2023-11-26 11:43:50,453 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] [2023-11-26 11:43:50,453 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] [2023-11-26 11:43:50,453 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] [2023-11-26 11:43:50,454 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] [2023-11-26 11:43:50,456 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] [2023-11-26 11:43:50,457 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] [2023-11-26 11:43:50,457 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] [2023-11-26 11:43:50,458 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] [2023-11-26 11:43:50,458 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] [2023-11-26 11:43:50,459 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] [2023-11-26 11:43:50,460 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] [2023-11-26 11:43:50,462 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] [2023-11-26 11:43:50,463 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] [2023-11-26 11:43:50,463 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] [2023-11-26 11:43:50,464 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] [2023-11-26 11:43:50,464 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] [2023-11-26 11:43:50,468 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] [2023-11-26 11:43:50,468 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] [2023-11-26 11:43:50,469 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] [2023-11-26 11:43:50,469 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] [2023-11-26 11:43:50,470 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] [2023-11-26 11:43:50,472 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] [2023-11-26 11:43:50,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:50,655 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:43:50,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50 WrapperNode [2023-11-26 11:43:50,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:50,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:50,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:43:50,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:43:50,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:50,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:50,883 INFO L138 Inliner]: procedures = 176, calls = 460, calls flagged for inlining = 92, calls inlined = 85, statements flattened = 1905 [2023-11-26 11:43:50,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:50,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:43:50,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:43:50,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:43:50,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:50,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:50,931 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,317 INFO L175 MemorySlicer]: Split 172 memory accesses to 9 slices as follows [2, 120, 7, 11, 1, 22, 2, 1, 6]. 70 percent of accesses are in the largest equivalence class. The 49 initializations are split as follows [2, 10, 0, 11, 1, 22, 2, 1, 0]. The 50 writes are split as follows [0, 41, 6, 0, 0, 0, 0, 0, 3]. [2023-11-26 11:43:51,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,318 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,450 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:43:51,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:43:51,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:43:51,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:43:51,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:51,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:51,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:51,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df598fa0-734c-44a3-b1f3-68d9ed521ff4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:43:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-26 11:43:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-26 11:43:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2023-11-26 11:43:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2023-11-26 11:43:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2023-11-26 11:43:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2023-11-26 11:43:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 11:43:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 11:43:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 11:43:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-26 11:43:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-26 11:43:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-26 11:43:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-26 11:43:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-26 11:43:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-26 11:43:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-26 11:43:51,582 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-26 11:43:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-26 11:43:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-26 11:43:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-26 11:43:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-26 11:43:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-26 11:43:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-26 11:43:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-26 11:43:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-26 11:43:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-26 11:43:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-26 11:43:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-26 11:43:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-26 11:43:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-26 11:43:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-26 11:43:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-26 11:43:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-26 11:43:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-26 11:43:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-26 11:43:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-26 11:43:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-26 11:43:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:43:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:43:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:43:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:43:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:43:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:43:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:43:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 11:43:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 11:43:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-26 11:43:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-26 11:43:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2023-11-26 11:43:51,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2023-11-26 11:43:51,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-26 11:43:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-26 11:43:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-26 11:43:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-26 11:43:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-26 11:43:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-26 11:43:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-26 11:43:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-26 11:43:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-26 11:43:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-26 11:43:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-26 11:43:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-26 11:43:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-26 11:43:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-26 11:43:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-26 11:43:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-26 11:43:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-26 11:43:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-26 11:43:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-11-26 11:43:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-11-26 11:43:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-26 11:43:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-26 11:43:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2023-11-26 11:43:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2023-11-26 11:43:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-26 11:43:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-26 11:43:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-26 11:43:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-26 11:43:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-26 11:43:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-26 11:43:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2023-11-26 11:43:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2023-11-26 11:43:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-26 11:43:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-26 11:43:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:43:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:43:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:43:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:43:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:43:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:43:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:43:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 11:43:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 11:43:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-26 11:43:51,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-26 11:43:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-26 11:43:51,608 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-26 11:43:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2023-11-26 11:43:51,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2023-11-26 11:43:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-26 11:43:51,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-26 11:43:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-26 11:43:51,609 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-26 11:43:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2023-11-26 11:43:51,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2023-11-26 11:43:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:43:51,613 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:43:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:43:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-26 11:43:51,614 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-26 11:43:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-26 11:43:51,614 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-26 11:43:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:43:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:43:51,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:43:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:43:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:43:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:43:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:43:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:43:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 11:43:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 11:43:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:43:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-26 11:43:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-26 11:43:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-26 11:43:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-26 11:43:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:43:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:43:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:43:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:43:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:43:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:43:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:43:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 11:43:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 11:43:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-11-26 11:43:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-11-26 11:43:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-26 11:43:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-26 11:43:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2023-11-26 11:43:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2023-11-26 11:43:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:43:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:43:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:43:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:43:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:43:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:43:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:43:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:43:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 11:43:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-26 11:43:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-26 11:43:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-26 11:43:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2023-11-26 11:43:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2023-11-26 11:43:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-26 11:43:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-26 11:43:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-26 11:43:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-26 11:43:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-26 11:43:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-26 11:43:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2023-11-26 11:43:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2023-11-26 11:43:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-26 11:43:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-26 11:43:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:43:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:43:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:43:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:43:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:43:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:43:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:43:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 11:43:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 11:43:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-26 11:43:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-26 11:43:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-26 11:43:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-26 11:43:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-26 11:43:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-26 11:43:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-26 11:43:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-26 11:43:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-26 11:43:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-26 11:43:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-26 11:43:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-26 11:43:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-26 11:43:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-26 11:43:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-26 11:43:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:43:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:43:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2023-11-26 11:43:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2023-11-26 11:43:52,219 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:43:52,223 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:43:52,298 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-26 11:43:54,376 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:43:54,618 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:43:54,618 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-26 11:43:54,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:54 BoogieIcfgContainer [2023-11-26 11:43:54,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:43:54,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:43:54,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:43:54,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:43:54,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:43:48" (1/3) ... [2023-11-26 11:43:54,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9cc63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:54, skipping insertion in model container [2023-11-26 11:43:54,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (2/3) ... [2023-11-26 11:43:54,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9cc63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:54, skipping insertion in model container [2023-11-26 11:43:54,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:54" (3/3) ... [2023-11-26 11:43:54,629 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 [2023-11-26 11:43:54,652 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:43:54,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:43:54,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:43:54,739 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@7d4a8397, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:43:54,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:43:54,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 577 states, 411 states have (on average 1.510948905109489) internal successors, (621), 426 states have internal predecessors, (621), 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) [2023-11-26 11:43:54,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-26 11:43:54,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:54,766 INFO L195 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] [2023-11-26 11:43:54,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:43:54,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,773 INFO L85 PathProgramCache]: Analyzing trace with hash 478044097, now seen corresponding path program 1 times [2023-11-26 11:43:54,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806440861] [2023-11-26 11:43:54,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:43:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:43:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:43:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:43:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:43:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 11:43:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 11:43:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:43:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:43:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:43:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 11:43:55,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:55,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806440861] [2023-11-26 11:43:55,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806440861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:55,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:55,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:43:55,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428515421] [2023-11-26 11:43:55,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:55,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:43:55,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:55,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:43:55,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:43:55,832 INFO L87 Difference]: Start difference. First operand has 577 states, 411 states have (on average 1.510948905109489) internal successors, (621), 426 states have internal predecessors, (621), 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 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-26 11:43:58,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:44:01,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:01,181 INFO L93 Difference]: Finished difference Result 1806 states and 2819 transitions. [2023-11-26 11:44:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:44:01,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 73 [2023-11-26 11:44:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:01,232 INFO L225 Difference]: With dead ends: 1806 [2023-11-26 11:44:01,232 INFO L226 Difference]: Without dead ends: 1219 [2023-11-26 11:44:01,252 INFO L412 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 [2023-11-26 11:44:01,256 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 1121 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:01,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 1464 Invalid, 1170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [316 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-26 11:44:01,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2023-11-26 11:44:01,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1099. [2023-11-26 11:44:01,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 795 states have (on average 1.4830188679245282) internal successors, (1179), 813 states have internal predecessors, (1179), 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) [2023-11-26 11:44:01,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1628 transitions. [2023-11-26 11:44:01,480 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1628 transitions. Word has length 73 [2023-11-26 11:44:01,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:01,481 INFO L495 AbstractCegarLoop]: Abstraction has 1099 states and 1628 transitions. [2023-11-26 11:44:01,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-26 11:44:01,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1628 transitions. [2023-11-26 11:44:01,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-26 11:44:01,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:01,488 INFO L195 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] [2023-11-26 11:44:01,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:44:01,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:01,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:01,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1179826590, now seen corresponding path program 1 times [2023-11-26 11:44:01,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:01,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323244593] [2023-11-26 11:44:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:01,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:44:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:44:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:44:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:44:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 11:44:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 11:44:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:44:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:44:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:44:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,006 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 11:44:02,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:02,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323244593] [2023-11-26 11:44:02,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323244593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:02,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:02,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:02,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990746810] [2023-11-26 11:44:02,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:02,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:02,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:02,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:02,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:02,012 INFO L87 Difference]: Start difference. First operand 1099 states and 1628 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-26 11:44:06,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:44:07,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:44:08,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:08,161 INFO L93 Difference]: Finished difference Result 3492 states and 5284 transitions. [2023-11-26 11:44:08,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:08,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 76 [2023-11-26 11:44:08,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:08,185 INFO L225 Difference]: With dead ends: 3492 [2023-11-26 11:44:08,185 INFO L226 Difference]: Without dead ends: 2408 [2023-11-26 11:44:08,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:08,191 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 1149 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:08,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 1996 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-26 11:44:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2023-11-26 11:44:08,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2230. [2023-11-26 11:44:08,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 1615 states have (on average 1.4842105263157894) internal successors, (2397), 1657 states have internal predecessors, (2397), 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) [2023-11-26 11:44:08,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 3350 transitions. [2023-11-26 11:44:08,395 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 3350 transitions. Word has length 76 [2023-11-26 11:44:08,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:08,398 INFO L495 AbstractCegarLoop]: Abstraction has 2230 states and 3350 transitions. [2023-11-26 11:44:08,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-26 11:44:08,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 3350 transitions. [2023-11-26 11:44:08,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-26 11:44:08,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:08,418 INFO L195 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] [2023-11-26 11:44:08,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:44:08,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:08,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash 573132447, now seen corresponding path program 1 times [2023-11-26 11:44:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:08,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212867702] [2023-11-26 11:44:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:08,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:44:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:44:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:44:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:44:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 11:44:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 11:44:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:44:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:44:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:44:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:44:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-26 11:44:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,847 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 11:44:08,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:08,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212867702] [2023-11-26 11:44:08,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212867702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:08,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:08,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:08,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031929313] [2023-11-26 11:44:08,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:08,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:08,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:08,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:08,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:08,852 INFO L87 Difference]: Start difference. First operand 2230 states and 3350 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 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) [2023-11-26 11:44:13,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:44:15,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:44:17,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:17,208 INFO L93 Difference]: Finished difference Result 6334 states and 9541 transitions. [2023-11-26 11:44:17,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 11:44:17,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 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 115 [2023-11-26 11:44:17,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:17,247 INFO L225 Difference]: With dead ends: 6334 [2023-11-26 11:44:17,247 INFO L226 Difference]: Without dead ends: 4125 [2023-11-26 11:44:17,292 INFO L412 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 [2023-11-26 11:44:17,295 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 1620 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:17,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 2079 Invalid, 2291 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [855 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-26 11:44:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4125 states. [2023-11-26 11:44:17,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4125 to 3616. [2023-11-26 11:44:17,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 2636 states have (on average 1.4723065250379364) internal successors, (3881), 2693 states have internal predecessors, (3881), 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) [2023-11-26 11:44:17,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 5394 transitions. [2023-11-26 11:44:17,591 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 5394 transitions. Word has length 115 [2023-11-26 11:44:17,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:17,592 INFO L495 AbstractCegarLoop]: Abstraction has 3616 states and 5394 transitions. [2023-11-26 11:44:17,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 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) [2023-11-26 11:44:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5394 transitions. [2023-11-26 11:44:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-26 11:44:17,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:17,615 INFO L195 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] [2023-11-26 11:44:17,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:44:17,616 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:17,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:17,616 INFO L85 PathProgramCache]: Analyzing trace with hash 912880991, now seen corresponding path program 1 times [2023-11-26 11:44:17,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:17,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925332440] [2023-11-26 11:44:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:17,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:44:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:44:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:44:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:44:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 11:44:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 11:44:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:44:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:44:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:44:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:44:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 11:44:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:18,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:44:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:18,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:18,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:44:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:18,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:18,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-26 11:44:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 11:44:18,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:18,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925332440] [2023-11-26 11:44:18,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925332440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:18,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:18,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:44:18,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076439703] [2023-11-26 11:44:18,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:18,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:18,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:18,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:18,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:18,067 INFO L87 Difference]: Start difference. First operand 3616 states and 5394 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-11-26 11:44:24,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:44:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:26,836 INFO L93 Difference]: Finished difference Result 9272 states and 13787 transitions. [2023-11-26 11:44:26,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:44:26,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 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 133 [2023-11-26 11:44:26,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:26,883 INFO L225 Difference]: With dead ends: 9272 [2023-11-26 11:44:26,883 INFO L226 Difference]: Without dead ends: 5677 [2023-11-26 11:44:26,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:44:26,897 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 1007 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:26,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 2619 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-11-26 11:44:26,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5677 states. [2023-11-26 11:44:27,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5677 to 5044. [2023-11-26 11:44:27,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5044 states, 3644 states have (on average 1.460482985729967) internal successors, (5322), 3741 states have internal predecessors, (5322), 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) [2023-11-26 11:44:27,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5044 states to 5044 states and 7413 transitions. [2023-11-26 11:44:27,250 INFO L78 Accepts]: Start accepts. Automaton has 5044 states and 7413 transitions. Word has length 133 [2023-11-26 11:44:27,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:27,251 INFO L495 AbstractCegarLoop]: Abstraction has 5044 states and 7413 transitions. [2023-11-26 11:44:27,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-11-26 11:44:27,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5044 states and 7413 transitions. [2023-11-26 11:44:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-26 11:44:27,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:27,263 INFO L195 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] [2023-11-26 11:44:27,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:44:27,263 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:27,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:27,264 INFO L85 PathProgramCache]: Analyzing trace with hash 810435455, now seen corresponding path program 1 times [2023-11-26 11:44:27,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:27,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529016813] [2023-11-26 11:44:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:27,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:44:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:44:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 11:44:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:44:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 11:44:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 11:44:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:44:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:44:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:44:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:44:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:44:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 11:44:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-26 11:44:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:27,714 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-26 11:44:27,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:27,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529016813] [2023-11-26 11:44:27,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529016813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:27,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:27,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:27,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473433791] [2023-11-26 11:44:27,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:27,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:27,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:27,718 INFO L87 Difference]: Start difference. First operand 5044 states and 7413 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 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) [2023-11-26 11:44:33,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []