./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d3eedf009c0354e40f9e91d5f02bdbd29fc69486fea85bd401e2764ccaedb5c6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:39:42,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:39:42,173 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 15:39:42,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:39:42,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:39:42,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:39:42,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:39:42,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:39:42,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:39:42,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:39:42,207 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:39:42,207 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:39:42,208 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:39:42,208 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:39:42,209 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:39:42,209 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:39:42,210 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:39:42,210 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:39:42,211 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:39:42,211 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:39:42,212 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:39:42,213 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:39:42,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:39:42,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:39:42,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:39:42,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:39:42,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:39:42,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:39:42,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:39:42,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:39:42,217 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:39:42,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:39:42,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:39:42,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:39:42,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:39:42,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:39:42,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:39:42,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:39:42,219 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:39:42,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:39:42,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:39:42,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:39:42,220 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:39:42,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:39:42,221 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3eedf009c0354e40f9e91d5f02bdbd29fc69486fea85bd401e2764ccaedb5c6 [2023-12-02 15:39:42,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:39:42,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:39:42,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:39:42,435 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:39:42,435 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:39:42,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2023-12-02 15:39:45,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:39:45,854 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:39:45,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2023-12-02 15:39:45,912 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/data/05414c9c5/c93453990d034b8884f5a24f2c63899c/FLAG0d55dc457 [2023-12-02 15:39:45,927 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/data/05414c9c5/c93453990d034b8884f5a24f2c63899c [2023-12-02 15:39:45,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:39:45,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:39:45,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:39:45,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:39:45,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:39:45,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:39:45" (1/1) ... [2023-12-02 15:39:45,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce9be60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:45, skipping insertion in model container [2023-12-02 15:39:45,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:39:45" (1/1) ... [2023-12-02 15:39:46,228 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:39:46,946 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_1447d36c-8503-447e-8ed8-04922015def3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i[223980,223993] [2023-12-02 15:39:49,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:39:49,982 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:39:50,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [7886] [2023-12-02 15:39:50,104 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7889] [2023-12-02 15:39:50,104 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7892] [2023-12-02 15:39:50,104 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7895] [2023-12-02 15:39:50,107 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_1447d36c-8503-447e-8ed8-04922015def3/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i[223980,223993] [2023-12-02 15:39:50,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [8243] [2023-12-02 15:39:50,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8246] [2023-12-02 15:39:50,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8249] [2023-12-02 15:39:50,119 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8252] [2023-12-02 15:39:50,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [8280-8281] [2023-12-02 15:39:50,120 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [8286-8288] [2023-12-02 15:39:50,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [8310-8311] [2023-12-02 15:39:50,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [8316-8318] [2023-12-02 15:39:50,122 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (819), "i" (12UL)); [8339-8340] [2023-12-02 15:39:50,123 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (47UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_enable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [8345-8347] [2023-12-02 15:39:50,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [18376] [2023-12-02 15:39:50,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [18379] [2023-12-02 15:39:50,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [18381] [2023-12-02 15:39:50,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [18386] [2023-12-02 15:39:50,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [18389] [2023-12-02 15:39:50,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [18391] [2023-12-02 15:39:50,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [18396] [2023-12-02 15:39:50,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [18399] [2023-12-02 15:39:50,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [18401] [2023-12-02 15:39:50,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [18406] [2023-12-02 15:39:50,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [18409] [2023-12-02 15:39:50,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [18411] [2023-12-02 15:39:50,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [18429] [2023-12-02 15:39:50,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [18432] [2023-12-02 15:39:50,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [18434] [2023-12-02 15:39:50,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [18439] [2023-12-02 15:39:50,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [18442] [2023-12-02 15:39:50,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [18444] [2023-12-02 15:39:50,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [18449] [2023-12-02 15:39:50,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [18452] [2023-12-02 15:39:50,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [18454] [2023-12-02 15:39:50,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [18459] [2023-12-02 15:39:50,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [18462] [2023-12-02 15:39:50,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [18464] [2023-12-02 15:39:50,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [18482] [2023-12-02 15:39:50,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [18489] [2023-12-02 15:39:50,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:39:50,855 WARN L675 CHandler]: The function __VERIFIER_nondet_u16 is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:39:50,855 WARN L675 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:39:50,856 WARN L675 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:39:50,856 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:39:50,863 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:39:50,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50 WrapperNode [2023-12-02 15:39:50,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:39:50,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:39:50,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:39:50,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:39:50,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:51,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:51,496 INFO L138 Inliner]: procedures = 401, calls = 9219, calls flagged for inlining = 179, calls inlined = 176, statements flattened = 20772 [2023-12-02 15:39:51,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:39:51,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:39:51,497 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:39:51,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:39:51,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:51,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:51,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:51,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:52,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:52,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:52,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:52,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:52,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:39:52,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:39:52,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:39:52,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:39:52,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (1/1) ... [2023-12-02 15:39:52,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:39:52,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:52,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:39:52,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:39:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-12-02 15:39:52,451 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-12-02 15:39:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_iq_calibrate [2023-12-02 15:39:52,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_iq_calibrate [2023-12-02 15:39:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 15:39:52,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 15:39:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_deinit_sw_leds [2023-12-02 15:39:52,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_deinit_sw_leds [2023-12-02 15:39:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_set_key [2023-12-02 15:39:52,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_set_key [2023-12-02 15:39:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_set_media_status [2023-12-02 15:39:52,452 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_set_media_status [2023-12-02 15:39:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-12-02 15:39:52,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-12-02 15:39:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2023-12-02 15:39:52,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2023-12-02 15:39:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_enable_hw_security_config [2023-12-02 15:39:52,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_enable_hw_security_config [2023-12-02 15:39:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_rfreg_delay [2023-12-02 15:39:52,454 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_rfreg_delay [2023-12-02 15:39:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-12-02 15:39:52,454 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-12-02 15:39:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_network_type [2023-12-02 15:39:52,454 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_network_type [2023-12-02 15:39:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_query_rxpwrpercentage [2023-12-02 15:39:52,455 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_query_rxpwrpercentage [2023-12-02 15:39:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2023-12-02 15:39:52,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2023-12-02 15:39:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_addr_delay [2023-12-02 15:39:52,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_addr_delay [2023-12-02 15:39:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_init_sw_leds [2023-12-02 15:39:52,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_init_sw_leds [2023-12-02 15:39:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure _DisableAnalog [2023-12-02 15:39:52,455 INFO L138 BoogieDeclarations]: Found implementation of procedure _DisableAnalog [2023-12-02 15:39:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-12-02 15:39:52,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-12-02 15:39:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 15:39:52,456 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 15:39:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_fill_fake_txdesc [2023-12-02 15:39:52,456 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_fill_fake_txdesc [2023-12-02 15:39:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl_tx_desc_checksum [2023-12-02 15:39:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl_tx_desc_checksum [2023-12-02 15:39:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_set_qos [2023-12-02 15:39:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_set_qos [2023-12-02 15:39:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_phy_rf_serial_read [2023-12-02 15:39:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_phy_rf_serial_read [2023-12-02 15:39:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2023-12-02 15:39:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2023-12-02 15:39:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_gpio_radio_on_off_checking [2023-12-02 15:39:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_gpio_radio_on_off_checking [2023-12-02 15:39:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_check_bssid [2023-12-02 15:39:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_check_bssid [2023-12-02 15:39:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_mgmt [2023-12-02 15:39:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_mgmt [2023-12-02 15:39:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-12-02 15:39:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 15:39:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 15:39:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:39:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_update_hal_rate_tbl [2023-12-02 15:39:52,459 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_update_hal_rate_tbl [2023-12-02 15:39:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2023-12-02 15:39:52,459 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2023-12-02 15:39:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 15:39:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 15:39:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:39:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_read_chip_version [2023-12-02 15:39:52,459 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_read_chip_version [2023-12-02 15:39:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 15:39:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 15:39:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure dm_writepowerindex [2023-12-02 15:39:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_writepowerindex [2023-12-02 15:39:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_cmd_send_packet [2023-12-02 15:39:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_cmd_send_packet [2023-12-02 15:39:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-12-02 15:39:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-12-02 15:39:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_update_channel_access_setting [2023-12-02 15:39:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_update_channel_access_setting [2023-12-02 15:39:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_init_led [2023-12-02 15:39:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_init_led [2023-12-02 15:39:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_set_bb_reg [2023-12-02 15:39:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_set_bb_reg [2023-12-02 15:39:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_translate_rx_signal_stuff [2023-12-02 15:39:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_translate_rx_signal_stuff [2023-12-02 15:39:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2023-12-02 15:39:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2023-12-02 15:39:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_stop_tx_beacon [2023-12-02 15:39:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_stop_tx_beacon [2023-12-02 15:39:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2023-12-02 15:39:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2023-12-02 15:39:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-12-02 15:39:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-12-02 15:39:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2023-12-02 15:39:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_query_bb_reg [2023-12-02 15:39:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_query_bb_reg [2023-12-02 15:39:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-12-02 15:39:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-12-02 15:39:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_beacon_related_registers [2023-12-02 15:39:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_beacon_related_registers [2023-12-02 15:39:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:39:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_init_chipN_reg_priority [2023-12-02 15:39:52,463 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_init_chipN_reg_priority [2023-12-02 15:39:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure _DisableRFAFEAndResetBB [2023-12-02 15:39:52,463 INFO L138 BoogieDeclarations]: Found implementation of procedure _DisableRFAFEAndResetBB [2023-12-02 15:39:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:39:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 15:39:52,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 15:39:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:39:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 15:39:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_resume_tx_beacon [2023-12-02 15:39:52,463 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_resume_tx_beacon [2023-12-02 15:39:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_led_control [2023-12-02 15:39:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_led_control [2023-12-02 15:39:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_disable_interrupt [2023-12-02 15:39:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_disable_interrupt [2023-12-02 15:39:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_set_rf_power_state [2023-12-02 15:39:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_set_rf_power_state [2023-12-02 15:39:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_dm_watchdog [2023-12-02 15:39:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_dm_watchdog [2023-12-02 15:39:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 15:39:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 15:39:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_sw_chnl [2023-12-02 15:39:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_sw_chnl [2023-12-02 15:39:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2023-12-02 15:39:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2023-12-02 15:39:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:39:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:39:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_init_sw_vars [2023-12-02 15:39:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_init_sw_vars [2023-12-02 15:39:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_signal_scale_mapping [2023-12-02 15:39:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_signal_scale_mapping [2023-12-02 15:39:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_phy_set_bw_mode [2023-12-02 15:39:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_phy_set_bw_mode [2023-12-02 15:39:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_tx_fill_cmddesc [2023-12-02 15:39:52,466 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_tx_fill_cmddesc [2023-12-02 15:39:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 15:39:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 15:39:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 15:39:52,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 15:39:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_phy_calculate_bit_shift [2023-12-02 15:39:52,466 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_phy_calculate_bit_shift [2023-12-02 15:39:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2023-12-02 15:39:52,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2023-12-02 15:39:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2023-12-02 15:39:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2023-12-02 15:39:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure _DisableGPIO [2023-12-02 15:39:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure _DisableGPIO [2023-12-02 15:39:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-12-02 15:39:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-12-02 15:39:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_enable_interrupt [2023-12-02 15:39:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_enable_interrupt [2023-12-02 15:39:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_set_bw_mode_callback [2023-12-02 15:39:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_set_bw_mode_callback [2023-12-02 15:39:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2023-12-02 15:39:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2023-12-02 15:39:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_hw_init [2023-12-02 15:39:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_hw_init [2023-12-02 15:39:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2023-12-02 15:39:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2023-12-02 15:39:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_deInit_led [2023-12-02 15:39:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_deInit_led [2023-12-02 15:39:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2023-12-02 15:39:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2023-12-02 15:39:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2023-12-02 15:39:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2023-12-02 15:39:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 15:39:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 15:39:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2023-12-02 15:39:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2023-12-02 15:39:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_rx_query_desc [2023-12-02 15:39:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_rx_query_desc [2023-12-02 15:39:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 15:39:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 15:39:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:39:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:39:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_config_rf_with_headerfile [2023-12-02 15:39:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_config_rf_with_headerfile [2023-12-02 15:39:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_dm_dynamic_txpower [2023-12-02 15:39:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_dm_dynamic_txpower [2023-12-02 15:39:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_query_rf_reg [2023-12-02 15:39:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_query_rf_reg [2023-12-02 15:39:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_phy_config_bb_with_headerfile [2023-12-02 15:39:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_phy_config_bb_with_headerfile [2023-12-02 15:39:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:39:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_rf6052_set_cck_txpower [2023-12-02 15:39:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_rf6052_set_cck_txpower [2023-12-02 15:39:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:39:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_get_hw_reg [2023-12-02 15:39:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_get_hw_reg [2023-12-02 15:39:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_deinit_sw_vars [2023-12-02 15:39:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_deinit_sw_vars [2023-12-02 15:39:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_phy_config_bb_with_pgheaderfile [2023-12-02 15:39:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_phy_config_bb_with_pgheaderfile [2023-12-02 15:39:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 15:39:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 15:39:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 15:39:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-12-02 15:39:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-12-02 15:39:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_fill_h2c_cmd [2023-12-02 15:39:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_fill_h2c_cmd [2023-12-02 15:39:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 15:39:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 15:39:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_set_rf_reg [2023-12-02 15:39:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_set_rf_reg [2023-12-02 15:39:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2023-12-02 15:39:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2023-12-02 15:39:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure rtlwifi_rate_mapping [2023-12-02 15:39:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure rtlwifi_rate_mapping [2023-12-02 15:39:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-12-02 15:39:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-12-02 15:39:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-12-02 15:39:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-12-02 15:39:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2023-12-02 15:39:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2023-12-02 15:39:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_phy_lc_calibrate [2023-12-02 15:39:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_phy_lc_calibrate [2023-12-02 15:39:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_beacon_interval [2023-12-02 15:39:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_beacon_interval [2023-12-02 15:39:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:39:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_rf6052_config [2023-12-02 15:39:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_rf6052_config [2023-12-02 15:39:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 15:39:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 15:39:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2023-12-02 15:39:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2023-12-02 15:39:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_tx_fill_desc [2023-12-02 15:39:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_tx_fill_desc [2023-12-02 15:39:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure _ResetDigitalProcedure1 [2023-12-02 15:39:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure _ResetDigitalProcedure1 [2023-12-02 15:39:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92c_llt_write [2023-12-02 15:39:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92c_llt_write [2023-12-02 15:39:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2023-12-02 15:39:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2023-12-02 15:39:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-12-02 15:39:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-12-02 15:39:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2023-12-02 15:39:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2023-12-02 15:39:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2023-12-02 15:39:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2023-12-02 15:39:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_update_interrupt_mask [2023-12-02 15:39:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_update_interrupt_mask [2023-12-02 15:39:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92cu_set_bcn_ctrl_reg [2023-12-02 15:39:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92cu_set_bcn_ctrl_reg [2023-12-02 15:39:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_set_hw_reg [2023-12-02 15:39:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_set_hw_reg [2023-12-02 15:39:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_phy_rf6052_set_ofdm_txpower [2023-12-02 15:39:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_phy_rf6052_set_ofdm_txpower [2023-12-02 15:39:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_phy_fw_rf_serial_read [2023-12-02 15:39:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_phy_fw_rf_serial_read [2023-12-02 15:39:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-12-02 15:39:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-12-02 15:39:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2023-12-02 15:39:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2023-12-02 15:39:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92c_get_chnl_group [2023-12-02 15:39:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92c_get_chnl_group [2023-12-02 15:39:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:39:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92cu_card_disable [2023-12-02 15:39:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92cu_card_disable [2023-12-02 15:39:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-12-02 15:39:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-12-02 15:39:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-12-02 15:39:53,787 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:39:53,793 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:39:54,101 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 15:40:19,980 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:40:42,188 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:40:42,189 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 15:40:42,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:40:42 BoogieIcfgContainer [2023-12-02 15:40:42,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:40:42,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:40:42,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:40:42,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:40:42,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:39:45" (1/3) ... [2023-12-02 15:40:42,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fa2025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:40:42, skipping insertion in model container [2023-12-02 15:40:42,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:50" (2/3) ... [2023-12-02 15:40:42,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fa2025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:40:42, skipping insertion in model container [2023-12-02 15:40:42,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:40:42" (3/3) ... [2023-12-02 15:40:42,201 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8192cu--rtl8192cu.ko-entry_point.cil.out.i [2023-12-02 15:40:42,221 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:40:42,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:40:42,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:40:42,359 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@902c8a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:40:42,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:40:42,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 3951 states, 2430 states have (on average 1.3506172839506172) internal successors, (3282), 2503 states have internal predecessors, (3282), 1400 states have call successors, (1400), 120 states have call predecessors, (1400), 119 states have return successors, (1395), 1367 states have call predecessors, (1395), 1395 states have call successors, (1395) [2023-12-02 15:40:42,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-02 15:40:42,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:40:42,400 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:40:42,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:40:42,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:40:42,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1764143477, now seen corresponding path program 1 times [2023-12-02 15:40:42,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:40:42,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017056335] [2023-12-02 15:40:42,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:40:42,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:40:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:40:44,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1075 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1075 trivial. 0 not checked. [2023-12-02 15:40:44,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:40:44,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017056335] [2023-12-02 15:40:44,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017056335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:40:44,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:40:44,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:40:44,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216021304] [2023-12-02 15:40:44,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:40:44,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:40:44,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:40:45,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:40:45,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:40:45,014 INFO L87 Difference]: Start difference. First operand has 3951 states, 2430 states have (on average 1.3506172839506172) internal successors, (3282), 2503 states have internal predecessors, (3282), 1400 states have call successors, (1400), 120 states have call predecessors, (1400), 119 states have return successors, (1395), 1367 states have call predecessors, (1395), 1395 states have call successors, (1395) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2023-12-02 15:40:47,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:40:51,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:40:53,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:40:56,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:40:59,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:01,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:05,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:07,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:10,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:14,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:16,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:18,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:20,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:22,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:24,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:26,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:41:26,680 INFO L93 Difference]: Finished difference Result 11689 states and 17993 transitions. [2023-12-02 15:41:26,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:41:26,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 206 [2023-12-02 15:41:26,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:41:26,763 INFO L225 Difference]: With dead ends: 11689 [2023-12-02 15:41:26,763 INFO L226 Difference]: Without dead ends: 7789 [2023-12-02 15:41:26,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:41:26,799 INFO L413 NwaCegarLoop]: 5430 mSDtfsCounter, 5936 mSDsluCounter, 5414 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 7 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5936 SdHoareTripleChecker+Valid, 10844 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:41:26,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5936 Valid, 10844 Invalid, 1319 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1297 Invalid, 15 Unknown, 0 Unchecked, 41.1s Time] [2023-12-02 15:41:26,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7789 states. [2023-12-02 15:41:27,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7789 to 7789. [2023-12-02 15:41:27,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7789 states, 4804 states have (on average 1.3488759367194005) internal successors, (6480), 4936 states have internal predecessors, (6480), 2748 states have call successors, (2748), 237 states have call predecessors, (2748), 236 states have return successors, (2747), 2691 states have call predecessors, (2747), 2747 states have call successors, (2747) [2023-12-02 15:41:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7789 states to 7789 states and 11975 transitions. [2023-12-02 15:41:27,718 INFO L78 Accepts]: Start accepts. Automaton has 7789 states and 11975 transitions. Word has length 206 [2023-12-02 15:41:27,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:41:27,720 INFO L495 AbstractCegarLoop]: Abstraction has 7789 states and 11975 transitions. [2023-12-02 15:41:27,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2023-12-02 15:41:27,721 INFO L276 IsEmpty]: Start isEmpty. Operand 7789 states and 11975 transitions. [2023-12-02 15:41:27,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-02 15:41:27,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:41:27,729 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:41:27,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:41:27,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:41:27,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:41:27,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1557957337, now seen corresponding path program 1 times [2023-12-02 15:41:27,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:41:27,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431353498] [2023-12-02 15:41:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:41:27,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:41:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:41:29,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2023-12-02 15:41:29,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:41:29,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431353498] [2023-12-02 15:41:29,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431353498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:41:29,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:41:29,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 15:41:29,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548996011] [2023-12-02 15:41:29,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:41:29,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:41:29,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:41:29,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:41:29,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:41:29,887 INFO L87 Difference]: Start difference. First operand 7789 states and 11975 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 15:41:32,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:34,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:39,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:41,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:43,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:45,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:49,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:51,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:53,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:55,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:41:57,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:00,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:03,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:04,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:07,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:09,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:11,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:13,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:15,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:18,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:20,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:23,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:25,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:27,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:29,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:31,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:33,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:36,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:38,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:42:38,447 INFO L93 Difference]: Finished difference Result 15507 states and 23846 transitions. [2023-12-02 15:42:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:42:38,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 215 [2023-12-02 15:42:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:42:38,544 INFO L225 Difference]: With dead ends: 15507 [2023-12-02 15:42:38,544 INFO L226 Difference]: Without dead ends: 15502 [2023-12-02 15:42:38,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:42:38,557 INFO L413 NwaCegarLoop]: 5420 mSDtfsCounter, 6007 mSDsluCounter, 10720 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 1 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6007 SdHoareTripleChecker+Valid, 16140 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.9s IncrementalHoareTripleChecker+Time [2023-12-02 15:42:38,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6007 Valid, 16140 Invalid, 1963 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1935 Invalid, 27 Unknown, 0 Unchecked, 67.9s Time] [2023-12-02 15:42:38,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15502 states. [2023-12-02 15:42:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15502 to 15500. [2023-12-02 15:42:40,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15500 states, 9567 states have (on average 1.3500574892860875) internal successors, (12916), 9831 states have internal predecessors, (12916), 5460 states have call successors, (5460), 473 states have call predecessors, (5460), 472 states have return successors, (5461), 5347 states have call predecessors, (5461), 5459 states have call successors, (5461) [2023-12-02 15:42:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15500 states to 15500 states and 23837 transitions. [2023-12-02 15:42:40,618 INFO L78 Accepts]: Start accepts. Automaton has 15500 states and 23837 transitions. Word has length 215 [2023-12-02 15:42:40,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:42:40,619 INFO L495 AbstractCegarLoop]: Abstraction has 15500 states and 23837 transitions. [2023-12-02 15:42:40,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 15:42:40,620 INFO L276 IsEmpty]: Start isEmpty. Operand 15500 states and 23837 transitions. [2023-12-02 15:42:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-02 15:42:40,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:42:40,636 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:42:40,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:42:40,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:42:40,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:42:40,637 INFO L85 PathProgramCache]: Analyzing trace with hash -437481857, now seen corresponding path program 1 times [2023-12-02 15:42:40,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:42:40,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784507275] [2023-12-02 15:42:40,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:42:40,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:42:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:42:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2023-12-02 15:42:41,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:42:41,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784507275] [2023-12-02 15:42:41,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784507275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:42:41,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:42:41,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:42:41,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702045881] [2023-12-02 15:42:41,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:42:41,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:42:41,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:42:41,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:42:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:42:41,930 INFO L87 Difference]: Start difference. First operand 15500 states and 23837 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 15:42:43,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:45,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:48,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:50,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:53,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:42:55,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:00,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:02,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:05,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:08,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:10,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:13,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:15,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:17,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:19,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:21,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:43:21,313 INFO L93 Difference]: Finished difference Result 45520 states and 69995 transitions. [2023-12-02 15:43:21,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:43:21,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 243 [2023-12-02 15:43:21,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:43:21,519 INFO L225 Difference]: With dead ends: 45520 [2023-12-02 15:43:21,519 INFO L226 Difference]: Without dead ends: 30091 [2023-12-02 15:43:21,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:43:21,618 INFO L413 NwaCegarLoop]: 5411 mSDtfsCounter, 5714 mSDsluCounter, 5292 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 2 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5714 SdHoareTripleChecker+Valid, 10703 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:43:21,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5714 Valid, 10703 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1298 Invalid, 12 Unknown, 0 Unchecked, 38.5s Time] [2023-12-02 15:43:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30091 states. [2023-12-02 15:43:24,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30091 to 30086. [2023-12-02 15:43:24,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30086 states, 18533 states have (on average 1.350078238817245) internal successors, (25021), 19057 states have internal predecessors, (25021), 10617 states have call successors, (10617), 936 states have call predecessors, (10617), 935 states have return successors, (10618), 10392 states have call predecessors, (10618), 10616 states have call successors, (10618) [2023-12-02 15:43:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30086 states to 30086 states and 46256 transitions. [2023-12-02 15:43:24,413 INFO L78 Accepts]: Start accepts. Automaton has 30086 states and 46256 transitions. Word has length 243 [2023-12-02 15:43:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:43:24,414 INFO L495 AbstractCegarLoop]: Abstraction has 30086 states and 46256 transitions. [2023-12-02 15:43:24,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 15:43:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 30086 states and 46256 transitions. [2023-12-02 15:43:24,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-02 15:43:24,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:43:24,443 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:43:24,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:43:24,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:43:24,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:43:24,444 INFO L85 PathProgramCache]: Analyzing trace with hash -492317299, now seen corresponding path program 1 times [2023-12-02 15:43:24,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:43:24,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892045377] [2023-12-02 15:43:24,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:43:24,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:43:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:43:26,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1670 trivial. 0 not checked. [2023-12-02 15:43:26,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:43:26,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892045377] [2023-12-02 15:43:26,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892045377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:43:26,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:43:26,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:43:26,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899782180] [2023-12-02 15:43:26,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:43:26,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:43:26,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:43:26,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:43:26,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:43:26,925 INFO L87 Difference]: Start difference. First operand 30086 states and 46256 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-02 15:43:29,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:31,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:33,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:35,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:38,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:43,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:45,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:47,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:49,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:53,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:55,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:43:57,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:01,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:03,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:05,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:07,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:10,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:12,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:14,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:16,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:22,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:24,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:26,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:28,179 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 [] [2023-12-02 15:44:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:44:30,176 INFO L93 Difference]: Finished difference Result 60125 states and 92470 transitions. [2023-12-02 15:44:30,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 15:44:30,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 1 states have call successors, (43) Word has length 279 [2023-12-02 15:44:30,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:44:30,316 INFO L225 Difference]: With dead ends: 60125 [2023-12-02 15:44:30,316 INFO L226 Difference]: Without dead ends: 30116 [2023-12-02 15:44:30,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:44:30,410 INFO L413 NwaCegarLoop]: 5404 mSDtfsCounter, 2 mSDsluCounter, 16207 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 1 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21611 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:44:30,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21611 Invalid, 2604 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2581 Invalid, 22 Unknown, 0 Unchecked, 62.3s Time] [2023-12-02 15:44:30,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30116 states. [2023-12-02 15:44:32,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30116 to 30106. [2023-12-02 15:44:32,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30106 states, 18547 states have (on average 1.3498139860893945) internal successors, (25035), 19073 states have internal predecessors, (25035), 10617 states have call successors, (10617), 936 states have call predecessors, (10617), 941 states have return successors, (10636), 10396 states have call predecessors, (10636), 10616 states have call successors, (10636) [2023-12-02 15:44:33,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30106 states to 30106 states and 46288 transitions. [2023-12-02 15:44:33,021 INFO L78 Accepts]: Start accepts. Automaton has 30106 states and 46288 transitions. Word has length 279 [2023-12-02 15:44:33,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:44:33,021 INFO L495 AbstractCegarLoop]: Abstraction has 30106 states and 46288 transitions. [2023-12-02 15:44:33,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (44), 2 states have call predecessors, (44), 3 states have return successors, (43), 3 states have call predecessors, (43), 1 states have call successors, (43) [2023-12-02 15:44:33,022 INFO L276 IsEmpty]: Start isEmpty. Operand 30106 states and 46288 transitions. [2023-12-02 15:44:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-02 15:44:33,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:44:33,048 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:44:33,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:44:33,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:44:33,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:44:33,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1756482578, now seen corresponding path program 1 times [2023-12-02 15:44:33,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:44:33,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680734290] [2023-12-02 15:44:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:44:33,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:44:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:44:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 1702 trivial. 0 not checked. [2023-12-02 15:44:35,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:44:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680734290] [2023-12-02 15:44:35,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680734290] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:44:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952693530] [2023-12-02 15:44:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:44:35,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:44:35,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:44:35,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:44:35,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:44:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:44:39,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 13750 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 15:44:39,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:44:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 742 proven. 0 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2023-12-02 15:44:39,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:44:39,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952693530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:44:39,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:44:39,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2023-12-02 15:44:39,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508597000] [2023-12-02 15:44:39,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:44:39,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:44:39,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:44:39,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:44:39,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:44:39,253 INFO L87 Difference]: Start difference. First operand 30106 states and 46288 transitions. Second operand has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-02 15:44:41,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:43,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:45,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:50,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:52,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:54,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:44:58,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:00,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:02,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:05,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:07,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:09,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:11,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:13,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:15,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:21,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:23,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:45:25,320 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 [] [2023-12-02 15:45:26,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:45:26,810 INFO L93 Difference]: Finished difference Result 60180 states and 92637 transitions. [2023-12-02 15:45:26,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:45:26,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 283 [2023-12-02 15:45:26,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:45:26,940 INFO L225 Difference]: With dead ends: 60180 [2023-12-02 15:45:26,941 INFO L226 Difference]: Without dead ends: 30114 [2023-12-02 15:45:27,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:45:27,045 INFO L413 NwaCegarLoop]: 5405 mSDtfsCounter, 1 mSDsluCounter, 10789 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 19 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 16194 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:45:27,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 16194 Invalid, 1986 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1951 Invalid, 16 Unknown, 0 Unchecked, 46.6s Time] [2023-12-02 15:45:27,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30114 states. [2023-12-02 15:45:29,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30114 to 30114. [2023-12-02 15:45:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30114 states, 18555 states have (on average 1.3496631635677714) internal successors, (25043), 19081 states have internal predecessors, (25043), 10617 states have call successors, (10617), 936 states have call predecessors, (10617), 941 states have return successors, (10636), 10396 states have call predecessors, (10636), 10616 states have call successors, (10636) [2023-12-02 15:45:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30114 states to 30114 states and 46296 transitions. [2023-12-02 15:45:29,765 INFO L78 Accepts]: Start accepts. Automaton has 30114 states and 46296 transitions. Word has length 283 [2023-12-02 15:45:29,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:45:29,765 INFO L495 AbstractCegarLoop]: Abstraction has 30114 states and 46296 transitions. [2023-12-02 15:45:29,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-02 15:45:29,766 INFO L276 IsEmpty]: Start isEmpty. Operand 30114 states and 46296 transitions. [2023-12-02 15:45:29,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-02 15:45:29,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:45:29,790 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 15, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:45:29,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:45:29,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:45:29,991 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:45:29,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:45:29,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1975818790, now seen corresponding path program 1 times [2023-12-02 15:45:29,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:45:29,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349177144] [2023-12-02 15:45:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:45:29,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:45:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:45:32,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1989 trivial. 0 not checked. [2023-12-02 15:45:32,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:45:32,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349177144] [2023-12-02 15:45:32,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349177144] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:45:32,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995467127] [2023-12-02 15:45:32,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:45:32,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:45:32,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:45:32,931 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:45:32,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1447d36c-8503-447e-8ed8-04922015def3/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:45:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:45:38,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 13975 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 15:45:38,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:45:38,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 644 proven. 1 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2023-12-02 15:45:38,643 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:45:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2060 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1989 trivial. 0 not checked. [2023-12-02 15:45:38,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995467127] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:45:38,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1946900472] [2023-12-02 15:45:38,944 INFO L159 IcfgInterpreter]: Started Sifa with 130 locations of interest [2023-12-02 15:45:38,944 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:45:38,948 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:45:38,954 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:45:38,954 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs