./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:44:01,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:44:01,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:44:01,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:44:01,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:44:01,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:44:01,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:44:01,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:44:01,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:44:01,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:44:01,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:44:01,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:44:01,917 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:44:01,918 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:44:01,918 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:44:01,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:44:01,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:44:01,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:44:01,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:44:01,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:44:01,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:44:01,921 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:44:01,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:44:01,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:44:01,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:44:01,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:01,924 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:44:01,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:44:01,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:44:01,925 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:44:01,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:44:01,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:44:01,926 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:44:01,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:44:01,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:44:01,927 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:44:01,927 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_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 [2023-11-06 22:44:02,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:44:02,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:44:02,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:44:02,216 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:44:02,217 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:44:02,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-06 22:44:05,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:44:06,118 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:44:06,119 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-06 22:44:06,178 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/data/c4833f2cd/3ab94fd519c047e290f4c806a7f69da9/FLAG1a99c3c95 [2023-11-06 22:44:06,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/data/c4833f2cd/3ab94fd519c047e290f4c806a7f69da9 [2023-11-06 22:44:06,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:44:06,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:44:06,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:06,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:44:06,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:44:06,206 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:06" (1/1) ... [2023-11-06 22:44:06,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4daa1d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:06, skipping insertion in model container [2023-11-06 22:44:06,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:06" (1/1) ... [2023-11-06 22:44:06,403 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:44:09,442 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_66b750c1-6b49-4646-a03e-ce361716c40d/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2023-11-06 22:44:09,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:09,713 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:44:09,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3673] [2023-11-06 22:44:09,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3676] [2023-11-06 22:44:09,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3679] [2023-11-06 22:44:09,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3682] [2023-11-06 22:44:09,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2,%0; sete %1": "+m" (v->counter), "=qm" (c): "ir" (i): "memory"); [3707-3708] [2023-11-06 22:44:09,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3719-3720] [2023-11-06 22:44:09,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3723-3724] [2023-11-06 22:44:09,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3727-3728] [2023-11-06 22:44:09,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3731-3732] [2023-11-06 22:44:09,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((u8 *)userbuffer), "i" (1UL)); [4856-4857] [2023-11-06 22:44:09,889 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" ((u16 *)userbuffer), "i" (2UL)); [4875-4876] [2023-11-06 22:44:09,892 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" ((u32 *)userbuffer), "i" (4UL)); [4911-4912] [2023-11-06 22:44:09,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)userbuffer): "ebx"); [5210] [2023-11-06 22:44:09,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)userbuffer): "ebx"); [5213] [2023-11-06 22:44:09,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)userbuffer): "ebx"); [5216] [2023-11-06 22:44:09,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)userbuffer): "ebx"); [5219] [2023-11-06 22:44:09,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)userbuffer): "ebx"); [5222] [2023-11-06 22:44:09,990 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" ((u16 *)userbuffer): "ebx"); [5246-5247] [2023-11-06 22:44:09,990 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" ((u16 *)userbuffer): "ebx"); [5250-5251] [2023-11-06 22:44:09,990 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" ((u16 *)userbuffer): "ebx"); [5254-5255] [2023-11-06 22:44:09,991 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" ((u16 *)userbuffer): "ebx"); [5258-5259] [2023-11-06 22:44:09,991 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" ((u16 *)userbuffer): "ebx"); [5262-5263] [2023-11-06 22:44:09,996 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" ((u32 *)userbuffer): "ebx"); [5309-5310] [2023-11-06 22:44:09,997 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" ((u32 *)userbuffer): "ebx"); [5313-5314] [2023-11-06 22:44:09,998 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" ((u32 *)userbuffer): "ebx"); [5317-5318] [2023-11-06 22:44:09,998 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" ((u32 *)userbuffer): "ebx"); [5321-5322] [2023-11-06 22:44:09,998 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" ((u32 *)userbuffer): "ebx"); [5325-5326] [2023-11-06 22:44:10,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)buffer): "ebx"); [7441] [2023-11-06 22:44:10,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)buffer): "ebx"); [7444] [2023-11-06 22:44:10,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)buffer): "ebx"); [7447] [2023-11-06 22:44:10,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)buffer): "ebx"); [7450] [2023-11-06 22:44:10,097 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((u8 *)buffer): "ebx"); [7453] [2023-11-06 22:44:10,098 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" ((u16 *)buffer): "ebx"); [7473-7474] [2023-11-06 22:44:10,098 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" ((u16 *)buffer): "ebx"); [7477-7478] [2023-11-06 22:44:10,099 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" ((u16 *)buffer): "ebx"); [7481-7482] [2023-11-06 22:44:10,099 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" ((u16 *)buffer): "ebx"); [7485-7486] [2023-11-06 22:44:10,099 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" ((u16 *)buffer): "ebx"); [7489-7490] [2023-11-06 22:44:10,100 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" ((u32 *)buffer): "ebx"); [7510-7511] [2023-11-06 22:44:10,101 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" ((u32 *)buffer): "ebx"); [7514-7515] [2023-11-06 22:44:10,101 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" ((u32 *)buffer): "ebx"); [7518-7519] [2023-11-06 22:44:10,102 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" ((u32 *)buffer): "ebx"); [7522-7523] [2023-11-06 22:44:10,102 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" ((u32 *)buffer): "ebx"); [7526-7527] [2023-11-06 22:44:10,104 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" ((u32 *)buffer): "ebx"); [7574-7575] [2023-11-06 22:44:10,105 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" ((u32 *)buffer): "ebx"); [7578-7579] [2023-11-06 22:44:10,105 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" ((u32 *)buffer): "ebx"); [7582-7583] [2023-11-06 22:44:10,105 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" ((u32 *)buffer): "ebx"); [7586-7587] [2023-11-06 22:44:10,106 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" ((u32 *)buffer): "ebx"); [7590-7591] [2023-11-06 22:44:10,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((u8 *)buffer), "i" (1UL)); [7650-7651] [2023-11-06 22:44:10,109 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" ((u16 *)buffer), "i" (2UL)); [7666-7667] [2023-11-06 22:44:10,110 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" ((u32 *)buffer), "i" (4UL)); [7682-7683] [2023-11-06 22:44:10,112 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" ((u32 *)buffer), "i" (4UL)); [7725-7726] [2023-11-06 22:44:10,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (argp): "ebx"); [7918] [2023-11-06 22:44:10,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (argp): "ebx"); [7921] [2023-11-06 22:44:10,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (argp): "ebx"); [7924] [2023-11-06 22:44:10,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (argp): "ebx"); [7927] [2023-11-06 22:44:10,122 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (argp): "ebx"); [7930] [2023-11-06 22:44:10,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [10220] [2023-11-06 22:44:10,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [10223] [2023-11-06 22:44:10,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [10226] [2023-11-06 22:44:10,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [10229] [2023-11-06 22:44:10,316 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_66b750c1-6b49-4646-a03e-ce361716c40d/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2023-11-06 22:44:10,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:10,648 WARN L672 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:44:10,648 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:44:10,657 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:44:10,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10 WrapperNode [2023-11-06 22:44:10,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:10,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:10,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:44:10,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:44:10,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:10,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:11,550 INFO L138 Inliner]: procedures = 359, calls = 7245, calls flagged for inlining = 185, calls inlined = 138, statements flattened = 14510 [2023-11-06 22:44:11,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:11,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:44:11,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:44:11,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:44:11,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:11,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:11,753 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:11,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:12,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:12,305 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:12,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:12,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:12,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:44:12,478 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:44:12,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:44:12,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:44:12,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (1/1) ... [2023-11-06 22:44:12,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:12,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:12,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:44:12,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:44:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-06 22:44:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-06 22:44:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-06 22:44:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-06 22:44:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-06 22:44:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-06 22:44:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:44:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:44:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-06 22:44:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-06 22:44:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_recv_bulk_msg [2023-11-06 22:44:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_recv_bulk_msg [2023-11-06 22:44:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 22:44:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 22:44:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_save_screen [2023-11-06 22:44:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_save_screen [2023-11-06 22:44:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_buffers [2023-11-06 22:44:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_buffers [2023-11-06 22:44:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_disconnect [2023-11-06 22:44:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_disconnect [2023-11-06 22:44:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_deinit [2023-11-06 22:44:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_deinit [2023-11-06 22:44:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_byte [2023-11-06 22:44:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_byte [2023-11-06 22:44:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-06 22:44:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-06 22:44:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-06 22:44:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-06 22:44:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 22:44:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 22:44:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_cursor [2023-11-06 22:44:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_cursor [2023-11-06 22:44:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-11-06 22:44:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-11-06 22:44:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-06 22:44:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-06 22:44:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_word [2023-11-06 22:44:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_word [2023-11-06 22:44:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:44:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:44:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetReg [2023-11-06 22:44:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetReg [2023-11-06 22:44:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-06 22:44:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-06 22:44:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb_lock_and_check [2023-11-06 22:44:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb_lock_and_check [2023-11-06 22:44:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:44:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure take_over_console [2023-11-06 22:44:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure take_over_console [2023-11-06 22:44:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_sisusb_valid [2023-11-06 22:44:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_sisusb_valid [2023-11-06 22:44:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:44:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegOR [2023-11-06 22:44:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegOR [2023-11-06 22:44:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2023-11-06 22:44:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2023-11-06 22:44:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-06 22:44:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_check_rbc [2023-11-06 22:44:12,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_check_rbc [2023-11-06 22:44:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:44:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:44:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-06 22:44:12,581 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-06 22:44:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-06 22:44:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-06 22:44:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_outurb_available [2023-11-06 22:44:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_outurb_available [2023-11-06 22:44:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_kill_all_busy [2023-11-06 22:44:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_kill_all_busy [2023-11-06 22:44:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-06 22:44:12,583 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-06 22:44:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-06 22:44:12,583 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-06 22:44:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getidxreg [2023-11-06 22:44:12,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getidxreg [2023-11-06 22:44:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-06 22:44:12,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-06 22:44:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-06 22:44:12,585 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-06 22:44:12,585 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_writeb [2023-11-06 22:44:12,586 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_writeb [2023-11-06 22:44:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 22:44:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-06 22:44:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-06 22:44:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_default_mode [2023-11-06 22:44:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_default_mode [2023-11-06 22:44:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_byte [2023-11-06 22:44:12,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_byte [2023-11-06 22:44:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:44:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_DisplayOn [2023-11-06 22:44:12,588 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_DisplayOn [2023-11-06 22:44:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-06 22:44:12,589 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-06 22:44:12,590 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregandor [2023-11-06 22:44:12,592 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregandor [2023-11-06 22:44:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_mem_bulk [2023-11-06 22:44:12,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_mem_bulk [2023-11-06 22:44:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-06 22:44:12,594 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-06 22:44:12,594 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbdummycon_init [2023-11-06 22:44:12,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbdummycon_init [2023-11-06 22:44:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-11-06 22:44:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-11-06 22:44:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:44:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetReg [2023-11-06 22:44:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetReg [2023-11-06 22:44:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_do_font_op [2023-11-06 22:44:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_do_font_op [2023-11-06 22:44:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_init_gfxdevice [2023-11-06 22:44:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_init_gfxdevice [2023-11-06 22:44:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegByte [2023-11-06 22:44:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegByte [2023-11-06 22:44:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_urbs [2023-11-06 22:44:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_urbs [2023-11-06 22:44:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-06 22:44:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-06 22:44:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bridge_packet [2023-11-06 22:44:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bridge_packet [2023-11-06 22:44:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-06 22:44:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-06 22:44:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-06 22:44:12,607 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-06 22:44:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_ioctl [2023-11-06 22:44:12,607 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_ioctl [2023-11-06 22:44:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_word [2023-11-06 22:44:12,607 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_word [2023-11-06 22:44:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb [2023-11-06 22:44:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb [2023-11-06 22:44:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-06 22:44:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-06 22:44:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_cursor [2023-11-06 22:44:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_cursor [2023-11-06 22:44:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_is_inactive [2023-11-06 22:44:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_is_inactive [2023-11-06 22:44:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-06 22:44:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-06 22:44:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_clear_vram [2023-11-06 22:44:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_clear_vram [2023-11-06 22:44:12,609 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_pci_config [2023-11-06 22:44:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_pci_config [2023-11-06 22:44:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:44:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-06 22:44:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-06 22:44:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bulk_msg [2023-11-06 22:44:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bulk_msg [2023-11-06 22:44:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-06 22:44:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-06 22:44:12,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 22:44:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 22:44:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_readb [2023-11-06 22:44:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_readb [2023-11-06 22:44:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregor [2023-11-06 22:44:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregor [2023-11-06 22:44:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:44:12,612 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-06 22:44:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-06 22:44:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-06 22:44:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-06 22:44:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:44:12,613 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_packet [2023-11-06 22:44:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_packet [2023-11-06 22:44:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_long [2023-11-06 22:44:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_long [2023-11-06 22:44:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_reset_text_mode [2023-11-06 22:44:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_reset_text_mode [2023-11-06 22:44:12,614 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSB_InitPtr [2023-11-06 22:44:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSB_InitPtr [2023-11-06 22:44:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:44:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_pci_config [2023-11-06 22:44:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_pci_config [2023-11-06 22:44:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-06 22:44:12,615 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxreg [2023-11-06 22:44:12,616 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxreg [2023-11-06 22:44:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegANDOR [2023-11-06 22:44:12,616 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegANDOR [2023-11-06 22:44:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 22:44:12,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 22:44:12,616 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_wait_all_out_complete [2023-11-06 22:44:12,617 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_wait_all_out_complete [2023-11-06 22:44:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-06 22:44:12,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-06 22:44:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegAND [2023-11-06 22:44:12,617 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegAND [2023-11-06 22:44:12,617 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregand [2023-11-06 22:44:12,618 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregand [2023-11-06 22:44:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-06 22:44:12,618 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-06 22:44:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetSegmentReg [2023-11-06 22:44:12,618 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetSegmentReg [2023-11-06 22:44:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_copy_memory [2023-11-06 22:44:12,619 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_copy_memory [2023-11-06 22:44:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setreg [2023-11-06 22:44:12,619 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setreg [2023-11-06 22:44:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2023-11-06 22:44:12,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2023-11-06 22:44:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_set_start_address [2023-11-06 22:44:12,620 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_set_start_address [2023-11-06 22:44:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-11-06 22:44:12,620 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-11-06 22:44:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-06 22:44:12,620 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-06 22:44:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_WriteDAC [2023-11-06 22:44:12,620 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_WriteDAC [2023-11-06 22:44:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_mem_bulk [2023-11-06 22:44:12,621 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_mem_bulk [2023-11-06 22:44:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getreg [2023-11-06 22:44:12,621 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getreg [2023-11-06 22:44:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSBSetMode [2023-11-06 22:44:12,621 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSBSetMode [2023-11-06 22:44:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2023-11-06 22:44:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2023-11-06 22:44:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_init [2023-11-06 22:44:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_init [2023-11-06 22:44:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-06 22:44:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-06 22:44:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:44:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_long [2023-11-06 22:44:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_long [2023-11-06 22:44:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetRegByte [2023-11-06 22:44:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetRegByte [2023-11-06 22:44:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-06 22:44:12,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-06 22:44:12,628 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_triggersr16 [2023-11-06 22:44:12,629 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_triggersr16 [2023-11-06 22:44:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-06 22:44:12,629 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-06 22:44:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:44:12,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:44:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_all_free [2023-11-06 22:44:12,629 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_all_free [2023-11-06 22:44:13,661 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:44:13,666 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:44:54,678 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:44:54,724 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:44:54,724 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:44:54,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:54 BoogieIcfgContainer [2023-11-06 22:44:54,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:44:54,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:44:54,740 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:44:54,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:44:54,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:06" (1/3) ... [2023-11-06 22:44:54,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c7d640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:54, skipping insertion in model container [2023-11-06 22:44:54,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:10" (2/3) ... [2023-11-06 22:44:54,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c7d640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:54, skipping insertion in model container [2023-11-06 22:44:54,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:54" (3/3) ... [2023-11-06 22:44:54,752 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-06 22:44:54,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:44:54,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:44:54,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:44:54,996 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=LoopsAndPotentialCycles, 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;@263241f7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:44:54,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:44:55,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 3765 states, 2872 states have (on average 1.4644846796657383) internal successors, (4206), 2899 states have internal predecessors, (4206), 785 states have call successors, (785), 106 states have call predecessors, (785), 106 states have return successors, (785), 781 states have call predecessors, (785), 785 states have call successors, (785) [2023-11-06 22:44:55,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:44:55,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:55,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:55,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:44:55,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:55,043 INFO L85 PathProgramCache]: Analyzing trace with hash 664785160, now seen corresponding path program 1 times [2023-11-06 22:44:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:55,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125962933] [2023-11-06 22:44:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:55,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:56,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:44:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:57,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:44:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:44:57,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:57,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125962933] [2023-11-06 22:44:57,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125962933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:57,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:57,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:44:57,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588511373] [2023-11-06 22:44:57,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:57,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:44:57,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:44:57,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:44:57,093 INFO L87 Difference]: Start difference. First operand has 3765 states, 2872 states have (on average 1.4644846796657383) internal successors, (4206), 2899 states have internal predecessors, (4206), 785 states have call successors, (785), 106 states have call predecessors, (785), 106 states have return successors, (785), 781 states have call predecessors, (785), 785 states have call successors, (785) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:45:05,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:45:10,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:45:12,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:45:14,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:45:16,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:45:27,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:45:29,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:45:48,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:45:50,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:45:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:53,122 INFO L93 Difference]: Finished difference Result 7672 states and 12374 transitions. [2023-11-06 22:45:53,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:45:53,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-06 22:45:53,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:53,196 INFO L225 Difference]: With dead ends: 7672 [2023-11-06 22:45:53,196 INFO L226 Difference]: Without dead ends: 3911 [2023-11-06 22:45:53,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:45:53,252 INFO L413 NwaCegarLoop]: 1061 mSDtfsCounter, 3991 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 10090 mSolverCounterSat, 328 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4560 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 10426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 10090 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:53,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4560 Valid, 2431 Invalid, 10426 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [328 Valid, 10090 Invalid, 8 Unknown, 0 Unchecked, 54.9s Time] [2023-11-06 22:45:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2023-11-06 22:45:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3758. [2023-11-06 22:45:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 2868 states have (on average 1.448744769874477) internal successors, (4155), 2893 states have internal predecessors, (4155), 785 states have call successors, (785), 106 states have call predecessors, (785), 104 states have return successors, (779), 775 states have call predecessors, (779), 779 states have call successors, (779) [2023-11-06 22:45:53,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 5719 transitions. [2023-11-06 22:45:53,702 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 5719 transitions. Word has length 19 [2023-11-06 22:45:53,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:53,703 INFO L495 AbstractCegarLoop]: Abstraction has 3758 states and 5719 transitions. [2023-11-06 22:45:53,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:45:53,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 5719 transitions. [2023-11-06 22:45:53,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-06 22:45:53,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:53,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:53,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:45:53,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:53,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:53,705 INFO L85 PathProgramCache]: Analyzing trace with hash -574582292, now seen corresponding path program 1 times [2023-11-06 22:45:53,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:53,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273464617] [2023-11-06 22:45:53,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:53,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:54,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:45:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:54,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:45:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:54,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:54,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273464617] [2023-11-06 22:45:54,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273464617] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:45:54,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958107972] [2023-11-06 22:45:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:54,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:54,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:54,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:45:54,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:45:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:57,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 8414 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:45:57,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:45:57,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:45:57,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958107972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:57,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:45:57,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-06 22:45:57,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283710710] [2023-11-06 22:45:57,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:57,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:57,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:57,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:57,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:45:57,278 INFO L87 Difference]: Start difference. First operand 3758 states and 5719 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:45:57,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:57,717 INFO L93 Difference]: Finished difference Result 3760 states and 5720 transitions. [2023-11-06 22:45:57,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:57,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-06 22:45:57,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:57,757 INFO L225 Difference]: With dead ends: 3760 [2023-11-06 22:45:57,758 INFO L226 Difference]: Without dead ends: 3757 [2023-11-06 22:45:57,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:45:57,768 INFO L413 NwaCegarLoop]: 5715 mSDtfsCounter, 5698 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5698 SdHoareTripleChecker+Valid, 5717 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:45:57,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5698 Valid, 5717 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:45:57,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2023-11-06 22:45:58,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3757. [2023-11-06 22:45:58,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3757 states, 2868 states have (on average 1.4483960948396095) internal successors, (4154), 2892 states have internal predecessors, (4154), 784 states have call successors, (784), 106 states have call predecessors, (784), 104 states have return successors, (779), 775 states have call predecessors, (779), 779 states have call successors, (779) [2023-11-06 22:45:58,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5717 transitions. [2023-11-06 22:45:58,063 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5717 transitions. Word has length 21 [2023-11-06 22:45:58,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:58,064 INFO L495 AbstractCegarLoop]: Abstraction has 3757 states and 5717 transitions. [2023-11-06 22:45:58,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:45:58,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5717 transitions. [2023-11-06 22:45:58,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 22:45:58,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:58,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:58,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:45:58,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:58,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:58,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:58,280 INFO L85 PathProgramCache]: Analyzing trace with hash -634764044, now seen corresponding path program 1 times [2023-11-06 22:45:58,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:58,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113929851] [2023-11-06 22:45:58,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:58,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:45:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:45:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:59,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:59,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113929851] [2023-11-06 22:45:59,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113929851] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:45:59,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214442668] [2023-11-06 22:45:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:59,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:45:59,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:59,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:45:59,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:46:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 8416 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:46:01,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:01,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:46:01,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:46:01,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214442668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:01,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:46:01,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-06 22:46:01,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671252820] [2023-11-06 22:46:01,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:01,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:01,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:01,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:01,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:01,813 INFO L87 Difference]: Start difference. First operand 3757 states and 5717 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:46:02,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:02,517 INFO L93 Difference]: Finished difference Result 10073 states and 15346 transitions. [2023-11-06 22:46:02,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:02,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2023-11-06 22:46:02,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:02,604 INFO L225 Difference]: With dead ends: 10073 [2023-11-06 22:46:02,605 INFO L226 Difference]: Without dead ends: 6331 [2023-11-06 22:46:02,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:02,640 INFO L413 NwaCegarLoop]: 8906 mSDtfsCounter, 4137 mSDsluCounter, 5436 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 14342 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:02,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4137 Valid, 14342 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:46:02,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6331 states. [2023-11-06 22:46:03,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6331 to 6328. [2023-11-06 22:46:03,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6328 states, 4852 states have (on average 1.4468260511129432) internal successors, (7020), 4903 states have internal predecessors, (7020), 1290 states have call successors, (1290), 184 states have call predecessors, (1290), 185 states have return successors, (1297), 1266 states have call predecessors, (1297), 1272 states have call successors, (1297) [2023-11-06 22:46:03,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6328 states to 6328 states and 9607 transitions. [2023-11-06 22:46:03,245 INFO L78 Accepts]: Start accepts. Automaton has 6328 states and 9607 transitions. Word has length 22 [2023-11-06 22:46:03,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:03,245 INFO L495 AbstractCegarLoop]: Abstraction has 6328 states and 9607 transitions. [2023-11-06 22:46:03,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:46:03,246 INFO L276 IsEmpty]: Start isEmpty. Operand 6328 states and 9607 transitions. [2023-11-06 22:46:03,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:46:03,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:03,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:03,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:03,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:03,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:03,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:03,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1794573807, now seen corresponding path program 1 times [2023-11-06 22:46:03,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:03,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751111233] [2023-11-06 22:46:03,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:03,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:46:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:46:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:04,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:04,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751111233] [2023-11-06 22:46:04,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751111233] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:04,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512926528] [2023-11-06 22:46:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:04,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:04,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:04,627 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:04,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:46:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:06,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 8418 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:46:06,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:06,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:46:06,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:46:06,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512926528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:06,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:46:06,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-06 22:46:06,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370541346] [2023-11-06 22:46:06,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:06,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:06,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:06,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:06,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:06,962 INFO L87 Difference]: Start difference. First operand 6328 states and 9607 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:46:07,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:07,505 INFO L93 Difference]: Finished difference Result 6330 states and 9608 transitions. [2023-11-06 22:46:07,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:07,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2023-11-06 22:46:07,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:07,598 INFO L225 Difference]: With dead ends: 6330 [2023-11-06 22:46:07,598 INFO L226 Difference]: Without dead ends: 6319 [2023-11-06 22:46:07,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:07,607 INFO L413 NwaCegarLoop]: 5714 mSDtfsCounter, 5694 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 5716 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:07,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 5716 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:46:07,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6319 states. [2023-11-06 22:46:08,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6319 to 6319. [2023-11-06 22:46:08,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6319 states, 4846 states have (on average 1.445934791580685) internal successors, (7007), 4896 states have internal predecessors, (7007), 1287 states have call successors, (1287), 183 states have call predecessors, (1287), 185 states have return successors, (1296), 1265 states have call predecessors, (1296), 1271 states have call successors, (1296) [2023-11-06 22:46:08,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6319 states to 6319 states and 9590 transitions. [2023-11-06 22:46:08,153 INFO L78 Accepts]: Start accepts. Automaton has 6319 states and 9590 transitions. Word has length 23 [2023-11-06 22:46:08,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:08,154 INFO L495 AbstractCegarLoop]: Abstraction has 6319 states and 9590 transitions. [2023-11-06 22:46:08,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:46:08,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6319 states and 9590 transitions. [2023-11-06 22:46:08,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-06 22:46:08,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:08,165 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:46:08,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:08,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:08,390 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:08,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:08,391 INFO L85 PathProgramCache]: Analyzing trace with hash 71436236, now seen corresponding path program 1 times [2023-11-06 22:46:08,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:08,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182937424] [2023-11-06 22:46:08,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:08,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:09,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:46:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:09,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:46:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:09,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:46:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:10,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-06 22:46:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:10,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:46:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:46:10,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182937424] [2023-11-06 22:46:10,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182937424] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:10,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124451884] [2023-11-06 22:46:10,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:10,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:10,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:10,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:10,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:46:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:12,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 8586 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:46:12,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:46:12,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:46:12,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124451884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:12,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:46:12,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-06 22:46:12,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571406542] [2023-11-06 22:46:12,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:12,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:46:12,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:12,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:46:12,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:46:12,616 INFO L87 Difference]: Start difference. First operand 6319 states and 9590 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:46:13,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:13,413 INFO L93 Difference]: Finished difference Result 12939 states and 19668 transitions. [2023-11-06 22:46:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:46:13,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2023-11-06 22:46:13,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:13,495 INFO L225 Difference]: With dead ends: 12939 [2023-11-06 22:46:13,495 INFO L226 Difference]: Without dead ends: 6635 [2023-11-06 22:46:13,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:46:13,544 INFO L413 NwaCegarLoop]: 5704 mSDtfsCounter, 197 mSDsluCounter, 5629 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 11333 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:13,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 11333 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:46:13,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6635 states. [2023-11-06 22:46:14,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6635 to 6608. [2023-11-06 22:46:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6608 states, 5049 states have (on average 1.4434541493365023) internal successors, (7288), 5106 states have internal predecessors, (7288), 1373 states have call successors, (1373), 183 states have call predecessors, (1373), 185 states have return successors, (1387), 1350 states have call predecessors, (1387), 1357 states have call successors, (1387) [2023-11-06 22:46:14,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6608 states to 6608 states and 10048 transitions. [2023-11-06 22:46:14,133 INFO L78 Accepts]: Start accepts. Automaton has 6608 states and 10048 transitions. Word has length 48 [2023-11-06 22:46:14,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:14,134 INFO L495 AbstractCegarLoop]: Abstraction has 6608 states and 10048 transitions. [2023-11-06 22:46:14,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:46:14,135 INFO L276 IsEmpty]: Start isEmpty. Operand 6608 states and 10048 transitions. [2023-11-06 22:46:14,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-06 22:46:14,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:14,140 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:46:14,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:14,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:14,364 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:14,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:14,365 INFO L85 PathProgramCache]: Analyzing trace with hash -361127708, now seen corresponding path program 1 times [2023-11-06 22:46:14,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:14,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77850817] [2023-11-06 22:46:14,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:14,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:46:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:15,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-06 22:46:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:15,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:46:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:15,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:46:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:46:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:15,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:46:15,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:15,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77850817] [2023-11-06 22:46:15,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77850817] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:15,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827857086] [2023-11-06 22:46:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:15,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:46:15,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:15,752 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:46:15,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b750c1-6b49-4646-a03e-ce361716c40d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:46:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:18,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 8590 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:46:18,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:46:18,221 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:46:18,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827857086] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:18,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:46:18,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2023-11-06 22:46:18,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944063158] [2023-11-06 22:46:18,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:18,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:46:18,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:18,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:46:18,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:46:18,347 INFO L87 Difference]: Start difference. First operand 6608 states and 10048 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:46:23,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:25,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:27,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:29,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:31,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:33,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:47,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:49,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:51,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:53,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:55,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:46:57,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:47:14,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:47:16,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:47:18,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:47:20,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:47:22,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:47:24,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []