./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/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_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/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_33432561-8c0a-4be3-8706-f93fb1bc0183/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 71ae762d3463fef3e0ebb4d119521f12329b84181672b3d3c2019f1e21951d6d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:00:09,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:00:09,774 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 13:00:09,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:00:09,779 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:00:09,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:00:09,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:00:09,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:00:09,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:00:09,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:00:09,804 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:00:09,804 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:00:09,805 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:00:09,805 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:00:09,806 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:00:09,806 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:00:09,807 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:00:09,807 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:00:09,808 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:00:09,808 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:00:09,809 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:00:09,810 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:00:09,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:00:09,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:00:09,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:00:09,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:00:09,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:00:09,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:00:09,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:00:09,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:00:09,814 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:00:09,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:00:09,815 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:00:09,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:00:09,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:00:09,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:00:09,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:00:09,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:00:09,816 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:00:09,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:00:09,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:00:09,817 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:00:09,817 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:00:09,817 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:00:09,817 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_33432561-8c0a-4be3-8706-f93fb1bc0183/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71ae762d3463fef3e0ebb4d119521f12329b84181672b3d3c2019f1e21951d6d [2023-12-02 13:00:10,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:00:10,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:00:10,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:00:10,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:00:10,085 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:00:10,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i [2023-12-02 13:00:12,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:00:13,275 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:00:13,275 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i [2023-12-02 13:00:13,308 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/data/b281a19be/a97238e5d6a54038b35b451a86c4a20c/FLAGdb8e73224 [2023-12-02 13:00:13,321 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/data/b281a19be/a97238e5d6a54038b35b451a86c4a20c [2023-12-02 13:00:13,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:00:13,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:00:13,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:00:13,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:00:13,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:00:13,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:00:13" (1/1) ... [2023-12-02 13:00:13,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b85bf62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:13, skipping insertion in model container [2023-12-02 13:00:13,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:00:13" (1/1) ... [2023-12-02 13:00:13,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:00:15,453 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_33432561-8c0a-4be3-8706-f93fb1bc0183/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i[315942,315955] [2023-12-02 13:00:15,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:00:15,541 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:00:15,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3745-3746] [2023-12-02 13:00:15,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3871] [2023-12-02 13:00:15,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3874] [2023-12-02 13:00:15,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3877] [2023-12-02 13:00:15,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3880] [2023-12-02 13:00:15,608 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" (831), "i" (12UL)); [3908-3909] [2023-12-02 13:00:15,608 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" (43UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [3914-3916] [2023-12-02 13:00:15,609 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" (836), "i" (12UL)); [3938-3939] [2023-12-02 13:00:15,609 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.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [3944-3946] [2023-12-02 13:00:15,609 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" (841), "i" (12UL)); [3967-3968] [2023-12-02 13:00:15,610 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.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [3973-3975] [2023-12-02 13:00:15,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [4010] [2023-12-02 13:00:15,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; cmpxchgb %2,%1": "=a" (__ret), "+m" (*__ptr): "q" (__new), "0" (__old): "memory"); [4029-4030] [2023-12-02 13:00:15,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; cmpxchgw %2,%1": "=a" (__ret), "+m" (*__ptr___0): "r" (__new), "0" (__old): "memory"); [4034-4035] [2023-12-02 13:00:15,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; cmpxchgl %2,%1": "=a" (__ret), "+m" (*__ptr___1): "r" (__new), "0" (__old): "memory"); [4039-4040] [2023-12-02 13:00:15,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; cmpxchgq %2,%1": "=a" (__ret), "+m" (*__ptr___2): "r" (__new), "0" (__old): "memory"); [4044-4045] [2023-12-02 13:00:15,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [4097] [2023-12-02 13:00:15,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [4100] [2023-12-02 13:00:15,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [4102] [2023-12-02 13:00:15,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [4107] [2023-12-02 13:00:15,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [4110] [2023-12-02 13:00:15,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [4112] [2023-12-02 13:00:15,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [4117] [2023-12-02 13:00:15,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [4120] [2023-12-02 13:00:15,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [4122] [2023-12-02 13:00:15,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [4127] [2023-12-02 13:00:15,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [4130] [2023-12-02 13:00:15,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [4132] [2023-12-02 13:00:15,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [4150] [2023-12-02 13:00:15,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [4153] [2023-12-02 13:00:15,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [4155] [2023-12-02 13:00:15,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [4160] [2023-12-02 13:00:15,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [4163] [2023-12-02 13:00:15,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [4165] [2023-12-02 13:00:15,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [4170] [2023-12-02 13:00:15,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [4173] [2023-12-02 13:00:15,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [4175] [2023-12-02 13:00:15,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [4180] [2023-12-02 13:00:15,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [4183] [2023-12-02 13:00:15,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [4185] [2023-12-02 13:00:15,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [4271] [2023-12-02 13:00:15,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [4279] [2023-12-02 13:00:15,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4287] [2023-12-02 13:00:15,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [4294] [2023-12-02 13:00:15,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [4301] [2023-12-02 13:00:15,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4308] [2023-12-02 13:00:15,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4464] [2023-12-02 13:00:15,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4471] [2023-12-02 13:00:15,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4482] [2023-12-02 13:00:15,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4492] [2023-12-02 13:00:15,633 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 *)"include/linux/scatterlist.h"), "i" (123), "i" (12UL)); [4522-4523] [2023-12-02 13:00:15,633 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 *)"include/linux/scatterlist.h"), "i" (124), "i" (12UL)); [4530-4531] [2023-12-02 13:00:15,639 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [4609-4610] [2023-12-02 13:00:15,641 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [4638-4639] [2023-12-02 13:00:15,643 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (56), "i" (12UL)); [4686-4687] [2023-12-02 13:00:15,643 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (58), "i" (12UL)); [4695-4696] [2023-12-02 13:00:15,644 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (70), "i" (12UL)); [4719-4720] [2023-12-02 13:00:15,645 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (120), "i" (12UL)); [4749-4750] [2023-12-02 13:00:15,646 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (160), "i" (12UL)); [4779-4780] [2023-12-02 13:00:15,740 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (319), "i" (12UL)); [5608-5609] [2023-12-02 13:00:15,743 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (364), "i" (12UL)); [5697-5698] [2023-12-02 13:00:15,746 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (397), "i" (12UL)); [5754-5755] [2023-12-02 13:00:15,751 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (497), "i" (12UL)); [5899-5900] [2023-12-02 13:00:15,753 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (532), "i" (12UL)); [5930-5931] [2023-12-02 13:00:15,754 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (543), "i" (12UL)); [5945-5946] [2023-12-02 13:00:15,768 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (740), "i" (12UL)); [6203-6204] [2023-12-02 13:00:15,769 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (741), "i" (12UL)); [6211-6212] [2023-12-02 13:00:15,769 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (742), "i" (12UL)); [6219-6220] [2023-12-02 13:00:15,782 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (943), "i" (12UL)); [6470-6471] [2023-12-02 13:00:15,790 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (1079), "i" (12UL)); [6637-6638] [2023-12-02 13:00:15,800 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (1285), "i" (12UL)); [6916-6917] [2023-12-02 13:00:15,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7009] [2023-12-02 13:00:15,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7206] [2023-12-02 13:00:15,884 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7360] [2023-12-02 13:00:15,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7981] [2023-12-02 13:00:15,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8013] [2023-12-02 13:00:15,945 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (2317), "i" (12UL)); [8027-8028] [2023-12-02 13:00:15,953 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/13057/dscv_tempdir/dscv/ri/43_2a/drivers/mmc/host/sdhci.c"), "i" (2407), "i" (12UL)); [8157-8158] [2023-12-02 13:00:15,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8533] [2023-12-02 13:00:16,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9272] [2023-12-02 13:00:16,097 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_33432561-8c0a-4be3-8706-f93fb1bc0183/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i[315942,315955] [2023-12-02 13:00:16,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:00:16,231 WARN L675 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:00:16,231 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:00:16,239 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:00:16,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16 WrapperNode [2023-12-02 13:00:16,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:00:16,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:00:16,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:00:16,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:00:16,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,593 INFO L138 Inliner]: procedures = 338, calls = 3423, calls flagged for inlining = 168, calls inlined = 162, statements flattened = 10528 [2023-12-02 13:00:16,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:00:16,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:00:16,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:00:16,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:00:16,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:00:16,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:00:16,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:00:16,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:00:16,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (1/1) ... [2023-12-02 13:00:16,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:00:16,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:00:16,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:00:16,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:00:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_kmap_atomic [2023-12-02 13:00:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_kmap_atomic [2023-12-02 13:00:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_dumpregs [2023-12-02 13:00:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_dumpregs [2023-12-02 13:00:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2023-12-02 13:00:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_retune_needed [2023-12-02 13:00:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_retune_needed [2023-12-02 13:00:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_enable_preset_value [2023-12-02 13:00:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_enable_preset_value [2023-12-02 13:00:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 13:00:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 13:00:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 13:00:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 13:00:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 13:00:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 13:00:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-12-02 13:00:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-12-02 13:00:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~TO~VOID [2023-12-02 13:00:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~TO~VOID [2023-12-02 13:00:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-12-02 13:00:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-12-02 13:00:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-12-02 13:00:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-12-02 13:00:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_enable_irq_wakeups [2023-12-02 13:00:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_enable_irq_wakeups [2023-12-02 13:00:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 13:00:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 13:00:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_execute_tuning [2023-12-02 13:00:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_execute_tuning [2023-12-02 13:00:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-12-02 13:00:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-12-02 13:00:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_hw_reset [2023-12-02 13:00:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_hw_reset [2023-12-02 13:00:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-12-02 13:00:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-12-02 13:00:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2023-12-02 13:00:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2023-12-02 13:00:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-12-02 13:00:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-12-02 13:00:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 13:00:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 13:00:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_sg_attrs [2023-12-02 13:00:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_sg_attrs [2023-12-02 13:00:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-12-02 13:00:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-12-02 13:00:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-12-02 13:00:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-12-02 13:00:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_kunmap_atomic [2023-12-02 13:00:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_kunmap_atomic [2023-12-02 13:00:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:00:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:00:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_enable_sdio_irq [2023-12-02 13:00:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_enable_sdio_irq [2023-12-02 13:00:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-12-02 13:00:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-12-02 13:00:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_thread_irq [2023-12-02 13:00:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_thread_irq [2023-12-02 13:00:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_remove_host [2023-12-02 13:00:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_remove_host [2023-12-02 13:00:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_4 [2023-12-02 13:00:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_4 [2023-12-02 13:00:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-12-02 13:00:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-12-02 13:00:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_check_ro [2023-12-02 13:00:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_check_ro [2023-12-02 13:00:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-12-02 13:00:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-12-02 13:00:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-12-02 13:00:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-12-02 13:00:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:00:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2023-12-02 13:00:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2023-12-02 13:00:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_get_preset_value [2023-12-02 13:00:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_get_preset_value [2023-12-02 13:00:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-12-02 13:00:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-12-02 13:00:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_disable_card_detection [2023-12-02 13:00:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_disable_card_detection [2023-12-02 13:00:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 13:00:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_prepare_data [2023-12-02 13:00:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_prepare_data [2023-12-02 13:00:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-12-02 13:00:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-12-02 13:00:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_request [2023-12-02 13:00:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_request [2023-12-02 13:00:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 13:00:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 13:00:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-12-02 13:00:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-12-02 13:00:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 13:00:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 13:00:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_set_voltage [2023-12-02 13:00:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_set_voltage [2023-12-02 13:00:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:00:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_pre_dma_transfer [2023-12-02 13:00:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_pre_dma_transfer [2023-12-02 13:00:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_writeb [2023-12-02 13:00:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_writeb [2023-12-02 13:00:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 13:00:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 13:00:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 13:00:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_writel [2023-12-02 13:00:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_writel [2023-12-02 13:00:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_writew [2023-12-02 13:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_writew [2023-12-02 13:00:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_reinit [2023-12-02 13:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_reinit [2023-12-02 13:00:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_next [2023-12-02 13:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_next [2023-12-02 13:00:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-12-02 13:00:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-12-02 13:00:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_set_timeout [2023-12-02 13:00:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_set_timeout [2023-12-02 13:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 13:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-12-02 13:00:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-12-02 13:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_enable_card_detection [2023-12-02 13:00:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_enable_card_detection [2023-12-02 13:00:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-12-02 13:00:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-12-02 13:00:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_retune_timer_stop [2023-12-02 13:00:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_retune_timer_stop [2023-12-02 13:00:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_set_card_detection [2023-12-02 13:00:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_set_card_detection [2023-12-02 13:00:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 13:00:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_irq [2023-12-02 13:00:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_irq [2023-12-02 13:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-12-02 13:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-12-02 13:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_runtime_pm_get [2023-12-02 13:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_runtime_pm_get [2023-12-02 13:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 13:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-12-02 13:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-12-02 13:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2023-12-02 13:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2023-12-02 13:00:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 13:00:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 13:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_resume_host [2023-12-02 13:00:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_resume_host [2023-12-02 13:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_5 [2023-12-02 13:00:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_5 [2023-12-02 13:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_4 [2023-12-02 13:00:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_4 [2023-12-02 13:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 13:00:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 13:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_get_cd [2023-12-02 13:00:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_get_cd [2023-12-02 13:00:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_4 [2023-12-02 13:00:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_4 [2023-12-02 13:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 13:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_runtime_pm_put [2023-12-02 13:00:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_runtime_pm_put [2023-12-02 13:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_regulator_set_ocr [2023-12-02 13:00:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_regulator_set_ocr [2023-12-02 13:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-12-02 13:00:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-12-02 13:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_finish_data [2023-12-02 13:00:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_finish_data [2023-12-02 13:00:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 13:00:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 13:00:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_do_set_ios [2023-12-02 13:00:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_do_set_ios [2023-12-02 13:00:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2023-12-02 13:00:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2023-12-02 13:00:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_card_event [2023-12-02 13:00:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_card_event [2023-12-02 13:00:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_do_start_signal_voltage_switch [2023-12-02 13:00:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_do_start_signal_voltage_switch [2023-12-02 13:00:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-12-02 13:00:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-12-02 13:00:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_card_busy [2023-12-02 13:00:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_card_busy [2023-12-02 13:00:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 13:00:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2023-12-02 13:00:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2023-12-02 13:00:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_5 [2023-12-02 13:00:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_5 [2023-12-02 13:00:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-12-02 13:00:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-12-02 13:00:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:00:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_enable_sdio_irq_nolock [2023-12-02 13:00:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_enable_sdio_irq_nolock [2023-12-02 13:00:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 13:00:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 13:00:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 13:00:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 13:00:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_4 [2023-12-02 13:00:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_4 [2023-12-02 13:00:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-12-02 13:00:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-12-02 13:00:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 13:00:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 13:00:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_3 [2023-12-02 13:00:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_3 [2023-12-02 13:00:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2023-12-02 13:00:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2023-12-02 13:00:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-12-02 13:00:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-12-02 13:00:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_do_get_ro [2023-12-02 13:00:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_do_get_ro [2023-12-02 13:00:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-12-02 13:00:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-12-02 13:00:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_stop [2023-12-02 13:00:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_stop [2023-12-02 13:00:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_send_command [2023-12-02 13:00:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_send_command [2023-12-02 13:00:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_get_ro [2023-12-02 13:00:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_get_ro [2023-12-02 13:00:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2023-12-02 13:00:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2023-12-02 13:00:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_do_get_cd [2023-12-02 13:00:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_do_get_cd [2023-12-02 13:00:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_set_ios [2023-12-02 13:00:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_set_ios [2023-12-02 13:00:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 13:00:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 13:00:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-12-02 13:00:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-12-02 13:00:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_is_supported_voltage [2023-12-02 13:00:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_is_supported_voltage [2023-12-02 13:00:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_runtime_resume_host [2023-12-02 13:00:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_runtime_resume_host [2023-12-02 13:00:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-12-02 13:00:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-12-02 13:00:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-12-02 13:00:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-12-02 13:00:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_readb [2023-12-02 13:00:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_readb [2023-12-02 13:00:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_runtime_pm_bus_off [2023-12-02 13:00:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_runtime_pm_bus_off [2023-12-02 13:00:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_init [2023-12-02 13:00:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_init [2023-12-02 13:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_add_host [2023-12-02 13:00:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_add_host [2023-12-02 13:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-12-02 13:00:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-12-02 13:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2023-12-02 13:00:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2023-12-02 13:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_do_reset [2023-12-02 13:00:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_do_reset [2023-12-02 13:00:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_readw [2023-12-02 13:00:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_readw [2023-12-02 13:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2023-12-02 13:00:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2023-12-02 13:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_finish_command [2023-12-02 13:00:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_finish_command [2023-12-02 13:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:00:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_readl [2023-12-02 13:00:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_readl [2023-12-02 13:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure sdhci_adma_write_desc [2023-12-02 13:00:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sdhci_adma_write_desc [2023-12-02 13:00:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 13:00:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 13:00:17,971 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:00:17,975 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:00:18,881 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 13:00:28,563 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:00:34,447 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:00:34,447 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-02 13:00:34,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:00:34 BoogieIcfgContainer [2023-12-02 13:00:34,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:00:34,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:00:34,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:00:34,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:00:34,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:00:13" (1/3) ... [2023-12-02 13:00:34,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68de4392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:00:34, skipping insertion in model container [2023-12-02 13:00:34,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:00:16" (2/3) ... [2023-12-02 13:00:34,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68de4392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:00:34, skipping insertion in model container [2023-12-02 13:00:34,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:00:34" (3/3) ... [2023-12-02 13:00:34,458 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--mmc--host--sdhci.ko-entry_point.cil.out.i [2023-12-02 13:00:34,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:00:34,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:00:34,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:00:34,589 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;@32f50dfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:00:34,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:00:34,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 2348 states, 1472 states have (on average 1.3355978260869565) internal successors, (1966), 1564 states have internal predecessors, (1966), 760 states have call successors, (760), 119 states have call predecessors, (760), 118 states have return successors, (748), 729 states have call predecessors, (748), 748 states have call successors, (748) [2023-12-02 13:00:34,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-02 13:00:34,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:00:34,668 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:00:34,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:00:34,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:00:34,675 INFO L85 PathProgramCache]: Analyzing trace with hash 712643243, now seen corresponding path program 1 times [2023-12-02 13:00:34,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:00:34,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640576416] [2023-12-02 13:00:34,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:00:34,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:00:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:00:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-12-02 13:00:35,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:00:35,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640576416] [2023-12-02 13:00:35,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640576416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:00:35,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:00:35,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:00:35,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078150416] [2023-12-02 13:00:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:00:35,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:00:35,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:00:35,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:00:35,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:00:35,683 INFO L87 Difference]: Start difference. First operand has 2348 states, 1472 states have (on average 1.3355978260869565) internal successors, (1966), 1564 states have internal predecessors, (1966), 760 states have call successors, (760), 119 states have call predecessors, (760), 118 states have return successors, (748), 729 states have call predecessors, (748), 748 states have call successors, (748) Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 13:00:37,507 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 13:00:45,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:00:47,619 WARN L539 Checker$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 13:00:49,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:00:51,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:00:51,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:00:51,487 INFO L93 Difference]: Finished difference Result 6803 states and 10244 transitions. [2023-12-02 13:00:51,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:00:51,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 166 [2023-12-02 13:00:51,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:00:51,552 INFO L225 Difference]: With dead ends: 6803 [2023-12-02 13:00:51,552 INFO L226 Difference]: Without dead ends: 4396 [2023-12-02 13:00:51,588 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 13:00:51,592 INFO L413 NwaCegarLoop]: 3652 mSDtfsCounter, 3165 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3165 SdHoareTripleChecker+Valid, 6653 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:00:51,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3165 Valid, 6653 Invalid, 877 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 873 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2023-12-02 13:00:51,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2023-12-02 13:00:51,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4393. [2023-12-02 13:00:51,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4393 states, 2738 states have (on average 1.308254200146092) internal successors, (3582), 2888 states have internal predecessors, (3582), 1423 states have call successors, (1423), 232 states have call predecessors, (1423), 231 states have return successors, (1422), 1386 states have call predecessors, (1422), 1422 states have call successors, (1422) [2023-12-02 13:00:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4393 states to 4393 states and 6427 transitions. [2023-12-02 13:00:52,056 INFO L78 Accepts]: Start accepts. Automaton has 4393 states and 6427 transitions. Word has length 166 [2023-12-02 13:00:52,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:00:52,057 INFO L495 AbstractCegarLoop]: Abstraction has 4393 states and 6427 transitions. [2023-12-02 13:00:52,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 13:00:52,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4393 states and 6427 transitions. [2023-12-02 13:00:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-02 13:00:52,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:00:52,109 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:00:52,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:00:52,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:00:52,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:00:52,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1477142621, now seen corresponding path program 1 times [2023-12-02 13:00:52,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:00:52,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082198291] [2023-12-02 13:00:52,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:00:52,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:00:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2023-12-02 13:01:02,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:01:02,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082198291] [2023-12-02 13:01:02,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082198291] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:01:02,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167542302] [2023-12-02 13:01:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:02,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:01:02,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:01:02,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:01:02,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:01:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:05,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 4784 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 13:01:05,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:01:05,681 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-12-02 13:01:05,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:01:05,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167542302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:01:05,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:01:05,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [27] total 29 [2023-12-02 13:01:05,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960311241] [2023-12-02 13:01:05,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:01:05,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:01:05,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:01:05,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:01:05,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:01:05,687 INFO L87 Difference]: Start difference. First operand 4393 states and 6427 transitions. Second operand has 4 states, 3 states have (on average 35.333333333333336) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:01:14,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:01:16,189 WARN L539 Checker$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 13:01:16,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:01:16,442 INFO L93 Difference]: Finished difference Result 8774 states and 12846 transitions. [2023-12-02 13:01:16,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:01:16,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 35.333333333333336) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 221 [2023-12-02 13:01:16,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:01:16,486 INFO L225 Difference]: With dead ends: 8774 [2023-12-02 13:01:16,486 INFO L226 Difference]: Without dead ends: 4394 [2023-12-02 13:01:16,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:01:16,520 INFO L413 NwaCegarLoop]: 2992 mSDtfsCounter, 0 mSDsluCounter, 5968 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8960 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:01:16,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8960 Invalid, 1149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-12-02 13:01:16,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2023-12-02 13:01:16,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 4394. [2023-12-02 13:01:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 2739 states have (on average 1.308141657539248) internal successors, (3583), 2889 states have internal predecessors, (3583), 1423 states have call successors, (1423), 232 states have call predecessors, (1423), 231 states have return successors, (1422), 1386 states have call predecessors, (1422), 1422 states have call successors, (1422) [2023-12-02 13:01:16,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 6428 transitions. [2023-12-02 13:01:16,782 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 6428 transitions. Word has length 221 [2023-12-02 13:01:16,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:01:16,782 INFO L495 AbstractCegarLoop]: Abstraction has 4394 states and 6428 transitions. [2023-12-02 13:01:16,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 35.333333333333336) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-02 13:01:16,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 6428 transitions. [2023-12-02 13:01:16,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-02 13:01:16,819 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:01:16,819 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:16,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:01:17,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:01:17,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:01:17,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:01:17,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1321205848, now seen corresponding path program 1 times [2023-12-02 13:01:17,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:01:17,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923193586] [2023-12-02 13:01:17,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:17,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:01:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:23,757 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2023-12-02 13:01:23,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:01:23,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923193586] [2023-12-02 13:01:23,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923193586] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:01:23,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69730892] [2023-12-02 13:01:23,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:01:23,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:01:23,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:01:23,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:01:23,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:01:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:01:25,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 4894 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 13:01:25,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:01:25,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-12-02 13:01:26,560 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 13:01:26,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 16 [2023-12-02 13:01:26,616 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2023-12-02 13:01:26,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:01:26,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69730892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:01:26,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:01:26,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [29] total 42 [2023-12-02 13:01:26,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370737835] [2023-12-02 13:01:26,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:01:26,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 13:01:26,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:01:26,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 13:01:26,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1579, Unknown=0, NotChecked=0, Total=1722 [2023-12-02 13:01:26,621 INFO L87 Difference]: Start difference. First operand 4394 states and 6428 transitions. Second operand has 16 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 6 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (30), 7 states have call predecessors, (30), 5 states have call successors, (30) [2023-12-02 13:01:30,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:01:32,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:01:36,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:01:37,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:01:39,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:01:59,605 WARN L539 Checker$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 13:02:01,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:02:03,619 WARN L539 Checker$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 13:02:05,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:07,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:09,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:11,648 WARN L539 Checker$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 13:02:13,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:02:15,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:17,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:19,669 WARN L539 Checker$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 13:02:21,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:02:23,682 WARN L539 Checker$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 13:02:25,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:02:27,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:33,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:02:35,068 WARN L539 Checker$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 13:02:37,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:39,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:41,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:43,089 WARN L539 Checker$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 13:02:45,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:02:47,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:02:49,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:02:51,114 WARN L539 Checker$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 13:02:53,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:02:55,134 WARN L539 Checker$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 13:02:57,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:03:03,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:05,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:07,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:03:10,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:12,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:14,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:03:16,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:18,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:20,726 WARN L539 Checker$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 13:03:22,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:24,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:03:25,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:03:25,597 INFO L93 Difference]: Finished difference Result 10381 states and 15241 transitions. [2023-12-02 13:03:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 13:03:25,598 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 6 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (30), 7 states have call predecessors, (30), 5 states have call successors, (30) Word has length 229 [2023-12-02 13:03:25,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:03:25,636 INFO L225 Difference]: With dead ends: 10381 [2023-12-02 13:03:25,637 INFO L226 Difference]: Without dead ends: 6018 [2023-12-02 13:03:25,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 215 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=237, Invalid=2843, Unknown=0, NotChecked=0, Total=3080 [2023-12-02 13:03:25,658 INFO L413 NwaCegarLoop]: 3636 mSDtfsCounter, 2275 mSDsluCounter, 18170 mSDsCounter, 0 mSdLazyCounter, 11823 mSolverCounterSat, 636 mSolverCounterUnsat, 37 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2289 SdHoareTripleChecker+Valid, 21806 SdHoareTripleChecker+Invalid, 12496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 11823 IncrementalHoareTripleChecker+Invalid, 37 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:03:25,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2289 Valid, 21806 Invalid, 12496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [636 Valid, 11823 Invalid, 37 Unknown, 0 Unchecked, 118.0s Time] [2023-12-02 13:03:25,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2023-12-02 13:03:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 5945. [2023-12-02 13:03:25,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5945 states, 3715 states have (on average 1.3173620457604307) internal successors, (4894), 3942 states have internal predecessors, (4894), 1872 states have call successors, (1872), 378 states have call predecessors, (1872), 357 states have return successors, (1986), 1758 states have call predecessors, (1986), 1871 states have call successors, (1986) [2023-12-02 13:03:25,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5945 states to 5945 states and 8752 transitions. [2023-12-02 13:03:25,913 INFO L78 Accepts]: Start accepts. Automaton has 5945 states and 8752 transitions. Word has length 229 [2023-12-02 13:03:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:03:25,914 INFO L495 AbstractCegarLoop]: Abstraction has 5945 states and 8752 transitions. [2023-12-02 13:03:25,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 6 states have call successors, (35), 5 states have call predecessors, (35), 6 states have return successors, (30), 7 states have call predecessors, (30), 5 states have call successors, (30) [2023-12-02 13:03:25,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5945 states and 8752 transitions. [2023-12-02 13:03:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-02 13:03:25,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:03:25,953 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:25,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 13:03:26,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:03:26,154 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:03:26,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:03:26,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1515967807, now seen corresponding path program 1 times [2023-12-02 13:03:26,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:03:26,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714837646] [2023-12-02 13:03:26,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:26,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:03:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-12-02 13:03:26,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:03:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714837646] [2023-12-02 13:03:26,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714837646] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:03:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098179372] [2023-12-02 13:03:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:26,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:03:26,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:03:26,815 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:03:26,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:03:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:28,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 5281 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:03:28,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:03:28,606 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-02 13:03:28,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:03:28,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098179372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:03:28,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:03:28,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 13:03:28,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323449678] [2023-12-02 13:03:28,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:03:28,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:03:28,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:03:28,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:03:28,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:03:28,610 INFO L87 Difference]: Start difference. First operand 5945 states and 8752 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:03:29,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:31,447 WARN L539 Checker$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 13:03:32,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:39,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:03:42,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:47,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:48,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:03:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:03:49,799 INFO L93 Difference]: Finished difference Result 17837 states and 26282 transitions. [2023-12-02 13:03:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:03:49,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 248 [2023-12-02 13:03:49,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:03:49,891 INFO L225 Difference]: With dead ends: 17837 [2023-12-02 13:03:49,891 INFO L226 Difference]: Without dead ends: 11925 [2023-12-02 13:03:49,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:03:49,925 INFO L413 NwaCegarLoop]: 2989 mSDtfsCounter, 3356 mSDsluCounter, 8934 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3360 SdHoareTripleChecker+Valid, 11923 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:03:49,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3360 Valid, 11923 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1529 Invalid, 1 Unknown, 0 Unchecked, 20.8s Time] [2023-12-02 13:03:49,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11925 states. [2023-12-02 13:03:50,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11925 to 11894. [2023-12-02 13:03:50,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11894 states, 7443 states have (on average 1.318285637511756) internal successors, (9812), 7917 states have internal predecessors, (9812), 3732 states have call successors, (3732), 755 states have call predecessors, (3732), 718 states have return successors, (3973), 3489 states have call predecessors, (3973), 3731 states have call successors, (3973) [2023-12-02 13:03:50,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11894 states to 11894 states and 17517 transitions. [2023-12-02 13:03:50,590 INFO L78 Accepts]: Start accepts. Automaton has 11894 states and 17517 transitions. Word has length 248 [2023-12-02 13:03:50,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:03:50,591 INFO L495 AbstractCegarLoop]: Abstraction has 11894 states and 17517 transitions. [2023-12-02 13:03:50,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:03:50,592 INFO L276 IsEmpty]: Start isEmpty. Operand 11894 states and 17517 transitions. [2023-12-02 13:03:50,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-12-02 13:03:50,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:03:50,647 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:50,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:03:50,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:03:50,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:03:50,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:03:50,849 INFO L85 PathProgramCache]: Analyzing trace with hash -921673858, now seen corresponding path program 1 times [2023-12-02 13:03:50,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:03:50,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308400047] [2023-12-02 13:03:50,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:50,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:03:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-12-02 13:03:51,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:03:51,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308400047] [2023-12-02 13:03:51,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308400047] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:03:51,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849290906] [2023-12-02 13:03:51,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:03:51,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:03:51,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:03:51,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:03:51,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:03:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:03:52,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 5401 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:03:52,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:03:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 13:03:53,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:03:53,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849290906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:03:53,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:03:53,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 13:03:53,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717169965] [2023-12-02 13:03:53,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:03:53,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:03:53,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:03:53,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:03:53,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:03:53,048 INFO L87 Difference]: Start difference. First operand 11894 states and 17517 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 13:03:55,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:04:02,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:04:07,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:04:11,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:04:13,698 WARN L539 Checker$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 13:04:15,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:04:17,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:04:17,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:04:17,996 INFO L93 Difference]: Finished difference Result 35752 states and 52685 transitions. [2023-12-02 13:04:17,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:04:17,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 242 [2023-12-02 13:04:17,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:04:18,131 INFO L225 Difference]: With dead ends: 35752 [2023-12-02 13:04:18,131 INFO L226 Difference]: Without dead ends: 23891 [2023-12-02 13:04:18,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:04:18,178 INFO L413 NwaCegarLoop]: 2989 mSDtfsCounter, 3358 mSDsluCounter, 8933 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3362 SdHoareTripleChecker+Valid, 11922 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:04:18,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3362 Valid, 11922 Invalid, 1535 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 1529 Invalid, 3 Unknown, 0 Unchecked, 24.2s Time] [2023-12-02 13:04:18,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23891 states. [2023-12-02 13:04:19,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23891 to 23832. [2023-12-02 13:04:19,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23832 states, 14931 states have (on average 1.3188667872212176) internal successors, (19692), 15919 states have internal predecessors, (19692), 7452 states have call successors, (7452), 1513 states have call predecessors, (7452), 1448 states have return successors, (7959), 6935 states have call predecessors, (7959), 7451 states have call successors, (7959) [2023-12-02 13:04:19,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23832 states to 23832 states and 35103 transitions. [2023-12-02 13:04:19,440 INFO L78 Accepts]: Start accepts. Automaton has 23832 states and 35103 transitions. Word has length 242 [2023-12-02 13:04:19,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:04:19,441 INFO L495 AbstractCegarLoop]: Abstraction has 23832 states and 35103 transitions. [2023-12-02 13:04:19,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 13:04:19,441 INFO L276 IsEmpty]: Start isEmpty. Operand 23832 states and 35103 transitions. [2023-12-02 13:04:19,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-02 13:04:19,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:04:19,523 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:19,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:04:19,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:04:19,724 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:04:19,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:04:19,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2108244701, now seen corresponding path program 1 times [2023-12-02 13:04:19,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:04:19,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426859408] [2023-12-02 13:04:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:19,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:04:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-12-02 13:04:20,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:04:20,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426859408] [2023-12-02 13:04:20,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426859408] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:04:20,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216504642] [2023-12-02 13:04:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:20,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:04:20,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:04:20,203 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:04:20,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:04:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:21,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 5082 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:04:21,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:04:21,886 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-12-02 13:04:21,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:04:21,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216504642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:04:21,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:04:21,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 13:04:21,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441661029] [2023-12-02 13:04:21,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:04:21,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:04:21,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:04:21,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:04:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:04:21,889 INFO L87 Difference]: Start difference. First operand 23832 states and 35103 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 13:04:29,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:04:35,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:04:38,107 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 13:04:38,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:04:38,512 INFO L93 Difference]: Finished difference Result 45089 states and 66111 transitions. [2023-12-02 13:04:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:04:38,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 231 [2023-12-02 13:04:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:04:38,620 INFO L225 Difference]: With dead ends: 45089 [2023-12-02 13:04:38,621 INFO L226 Difference]: Without dead ends: 24080 [2023-12-02 13:04:38,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:04:38,703 INFO L413 NwaCegarLoop]: 2998 mSDtfsCounter, 3343 mSDsluCounter, 5968 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3347 SdHoareTripleChecker+Valid, 8966 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:04:38,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3347 Valid, 8966 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1147 Invalid, 2 Unknown, 0 Unchecked, 15.9s Time] [2023-12-02 13:04:38,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24080 states. [2023-12-02 13:04:39,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24080 to 23912. [2023-12-02 13:04:39,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23912 states, 15011 states have (on average 1.3187662380920657) internal successors, (19796), 15991 states have internal predecessors, (19796), 7444 states have call successors, (7444), 1521 states have call predecessors, (7444), 1456 states have return successors, (7935), 6935 states have call predecessors, (7935), 7443 states have call successors, (7935) [2023-12-02 13:04:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23912 states to 23912 states and 35175 transitions. [2023-12-02 13:04:40,031 INFO L78 Accepts]: Start accepts. Automaton has 23912 states and 35175 transitions. Word has length 231 [2023-12-02 13:04:40,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:04:40,032 INFO L495 AbstractCegarLoop]: Abstraction has 23912 states and 35175 transitions. [2023-12-02 13:04:40,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 13:04:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 23912 states and 35175 transitions. [2023-12-02 13:04:40,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-02 13:04:40,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:04:40,108 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:04:40,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 13:04:40,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:04:40,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:04:40,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:04:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash 968624806, now seen corresponding path program 1 times [2023-12-02 13:04:40,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:04:40,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423511067] [2023-12-02 13:04:40,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:40,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:04:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-12-02 13:04:40,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:04:40,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423511067] [2023-12-02 13:04:40,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423511067] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:04:40,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463839235] [2023-12-02 13:04:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:04:40,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:04:40,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:04:40,800 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:04:40,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 13:04:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:04:42,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 5407 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:04:42,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:04:42,519 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 13:04:42,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:04:42,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463839235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:04:42,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:04:42,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 13:04:42,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391111332] [2023-12-02 13:04:42,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:04:42,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:04:42,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:04:42,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:04:42,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:04:42,522 INFO L87 Difference]: Start difference. First operand 23912 states and 35175 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 13:04:44,759 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 13:04:51,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:04:56,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:04:59,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:05:01,743 WARN L539 Checker$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 13:05:03,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:05:05,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:05:06,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:05:06,455 INFO L93 Difference]: Finished difference Result 71942 states and 105875 transitions. [2023-12-02 13:05:06,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:05:06,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 245 [2023-12-02 13:05:06,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:05:06,713 INFO L225 Difference]: With dead ends: 71942 [2023-12-02 13:05:06,713 INFO L226 Difference]: Without dead ends: 48063 [2023-12-02 13:05:06,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:05:06,820 INFO L413 NwaCegarLoop]: 2998 mSDtfsCounter, 3355 mSDsluCounter, 8952 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3359 SdHoareTripleChecker+Valid, 11950 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:05:06,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3359 Valid, 11950 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1528 Invalid, 3 Unknown, 0 Unchecked, 22.6s Time] [2023-12-02 13:05:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48063 states. [2023-12-02 13:05:09,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48063 to 47948. [2023-12-02 13:05:09,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47948 states, 30131 states have (on average 1.3191729448076732) internal successors, (39748), 32171 states have internal predecessors, (39748), 14876 states have call successors, (14876), 3053 states have call predecessors, (14876), 2940 states have return successors, (15907), 13795 states have call predecessors, (15907), 14875 states have call successors, (15907) [2023-12-02 13:05:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47948 states to 47948 states and 70531 transitions. [2023-12-02 13:05:09,754 INFO L78 Accepts]: Start accepts. Automaton has 47948 states and 70531 transitions. Word has length 245 [2023-12-02 13:05:09,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:05:09,755 INFO L495 AbstractCegarLoop]: Abstraction has 47948 states and 70531 transitions. [2023-12-02 13:05:09,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 13:05:09,755 INFO L276 IsEmpty]: Start isEmpty. Operand 47948 states and 70531 transitions. [2023-12-02 13:05:09,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-02 13:05:09,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:05:09,877 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:05:09,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 13:05:10,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:05:10,078 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:05:10,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:05:10,078 INFO L85 PathProgramCache]: Analyzing trace with hash -718551935, now seen corresponding path program 1 times [2023-12-02 13:05:10,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:05:10,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840026914] [2023-12-02 13:05:10,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:05:10,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:05:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:05:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-12-02 13:05:10,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:05:10,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840026914] [2023-12-02 13:05:10,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840026914] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:05:10,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699749497] [2023-12-02 13:05:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:05:10,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:05:10,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:05:10,589 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:05:10,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 13:05:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:05:12,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 5596 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:05:12,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:05:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-12-02 13:05:12,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:05:12,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699749497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:05:12,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:05:12,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 13:05:12,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774035343] [2023-12-02 13:05:12,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:05:12,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:05:12,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:05:12,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:05:12,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:05:12,306 INFO L87 Difference]: Start difference. First operand 47948 states and 70531 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:05:24,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:05:30,320 WARN L539 Checker$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 13:05:32,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:05:34,823 WARN L539 Checker$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 13:05:36,828 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 13:05:37,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:05:37,596 INFO L93 Difference]: Finished difference Result 144290 states and 215055 transitions. [2023-12-02 13:05:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:05:37,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 257 [2023-12-02 13:05:37,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:05:38,175 INFO L225 Difference]: With dead ends: 144290 [2023-12-02 13:05:38,175 INFO L226 Difference]: Without dead ends: 96375 [2023-12-02 13:05:38,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:05:38,422 INFO L413 NwaCegarLoop]: 3214 mSDtfsCounter, 3355 mSDsluCounter, 9474 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3355 SdHoareTripleChecker+Valid, 12688 SdHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:05:38,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3355 Valid, 12688 Invalid, 1626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1614 Invalid, 4 Unknown, 0 Unchecked, 22.2s Time] [2023-12-02 13:05:38,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96375 states. [2023-12-02 13:05:42,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96375 to 96068. [2023-12-02 13:05:42,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96068 states, 60467 states have (on average 1.3196619643772636) internal successors, (79796), 64659 states have internal predecessors, (79796), 29692 states have call successors, (29692), 6101 states have call predecessors, (29692), 5908 states have return successors, (34531), 27403 states have call predecessors, (34531), 29691 states have call successors, (34531) [2023-12-02 13:05:43,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96068 states to 96068 states and 144019 transitions. [2023-12-02 13:05:43,303 INFO L78 Accepts]: Start accepts. Automaton has 96068 states and 144019 transitions. Word has length 257 [2023-12-02 13:05:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:05:43,304 INFO L495 AbstractCegarLoop]: Abstraction has 96068 states and 144019 transitions. [2023-12-02 13:05:43,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:05:43,304 INFO L276 IsEmpty]: Start isEmpty. Operand 96068 states and 144019 transitions. [2023-12-02 13:05:43,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-02 13:05:43,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:05:43,547 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:05:43,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 13:05:43,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:05:43,748 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:05:43,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:05:43,748 INFO L85 PathProgramCache]: Analyzing trace with hash 686107112, now seen corresponding path program 1 times [2023-12-02 13:05:43,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:05:43,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289633071] [2023-12-02 13:05:43,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:05:43,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:05:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:05:44,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:05:44,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289633071] [2023-12-02 13:05:44,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 13:05:44,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541539210] [2023-12-02 13:05:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:05:44,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:05:44,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:05:44,186 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:05:44,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 13:05:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:05:45,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 5254 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:05:45,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:05:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-12-02 13:05:46,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:05:46,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541539210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:05:46,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:05:46,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:05:46,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122682547] [2023-12-02 13:05:46,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:05:46,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:05:46,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:05:46,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:05:46,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:05:46,137 INFO L87 Difference]: Start difference. First operand 96068 states and 144019 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 13:05:49,119 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 13:05:59,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:06:03,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:06:06,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:06:08,025 WARN L539 Checker$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 13:06:10,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:06:12,924 WARN L539 Checker$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 13:06:14,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:06:16,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:06:16,170 INFO L93 Difference]: Finished difference Result 229434 states and 343535 transitions. [2023-12-02 13:06:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:06:16,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 240 [2023-12-02 13:06:16,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:06:16,824 INFO L225 Difference]: With dead ends: 229434 [2023-12-02 13:06:16,824 INFO L226 Difference]: Without dead ends: 145039 [2023-12-02 13:06:17,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:06:17,275 INFO L413 NwaCegarLoop]: 3044 mSDtfsCounter, 3343 mSDsluCounter, 9102 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3343 SdHoareTripleChecker+Valid, 12146 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:06:17,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3343 Valid, 12146 Invalid, 1541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1530 Invalid, 3 Unknown, 0 Unchecked, 24.3s Time] [2023-12-02 13:06:17,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145039 states. [2023-12-02 13:06:24,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145039 to 144236. [2023-12-02 13:06:24,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144236 states, 90899 states have (on average 1.3194864629973928) internal successors, (119940), 97067 states have internal predecessors, (119940), 44476 states have call successors, (44476), 9149 states have call predecessors, (44476), 8860 states have return successors, (52995), 41139 states have call predecessors, (52995), 44475 states have call successors, (52995) [2023-12-02 13:06:25,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144236 states to 144236 states and 217411 transitions. [2023-12-02 13:06:25,960 INFO L78 Accepts]: Start accepts. Automaton has 144236 states and 217411 transitions. Word has length 240 [2023-12-02 13:06:25,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:06:25,961 INFO L495 AbstractCegarLoop]: Abstraction has 144236 states and 217411 transitions. [2023-12-02 13:06:25,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 13:06:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 144236 states and 217411 transitions. [2023-12-02 13:06:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-02 13:06:26,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:06:26,390 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:06:26,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 13:06:26,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:06:26,591 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:06:26,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:06:26,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1100815226, now seen corresponding path program 1 times [2023-12-02 13:06:26,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:06:26,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305572102] [2023-12-02 13:06:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:06:26,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:06:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:06:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-12-02 13:06:27,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:06:27,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305572102] [2023-12-02 13:06:27,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305572102] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:06:27,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407775633] [2023-12-02 13:06:27,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:06:27,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:06:27,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:06:27,173 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:06:27,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 13:06:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:06:28,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 5084 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:06:28,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:06:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-12-02 13:06:29,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:06:29,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407775633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:06:29,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:06:29,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 13:06:29,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504607385] [2023-12-02 13:06:29,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:06:29,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:06:29,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:06:29,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:06:29,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:06:29,025 INFO L87 Difference]: Start difference. First operand 144236 states and 217411 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 13:06:30,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:06:38,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:06:42,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:06:46,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:06:48,329 WARN L539 Checker$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 13:06:51,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:06:51,216 INFO L93 Difference]: Finished difference Result 272795 states and 408961 transitions. [2023-12-02 13:06:51,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:06:51,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 232 [2023-12-02 13:06:51,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:06:52,100 INFO L225 Difference]: With dead ends: 272795 [2023-12-02 13:06:52,100 INFO L226 Difference]: Without dead ends: 145868 [2023-12-02 13:06:52,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:06:52,724 INFO L413 NwaCegarLoop]: 2998 mSDtfsCounter, 3342 mSDsluCounter, 5968 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3346 SdHoareTripleChecker+Valid, 8966 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:06:52,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3346 Valid, 8966 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1146 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2023-12-02 13:06:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145868 states. [2023-12-02 13:07:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145868 to 144716. [2023-12-02 13:07:00,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144716 states, 91379 states have (on average 1.3193841035686535) internal successors, (120564), 97499 states have internal predecessors, (120564), 44428 states have call successors, (44428), 9197 states have call predecessors, (44428), 8908 states have return successors, (52787), 41139 states have call predecessors, (52787), 44427 states have call successors, (52787) [2023-12-02 13:07:01,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144716 states to 144716 states and 217779 transitions. [2023-12-02 13:07:01,378 INFO L78 Accepts]: Start accepts. Automaton has 144716 states and 217779 transitions. Word has length 232 [2023-12-02 13:07:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:07:01,378 INFO L495 AbstractCegarLoop]: Abstraction has 144716 states and 217779 transitions. [2023-12-02 13:07:01,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 13:07:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 144716 states and 217779 transitions. [2023-12-02 13:07:01,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-02 13:07:01,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:07:01,614 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:01,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 13:07:01,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 13:07:01,815 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:07:01,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:07:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash 59000082, now seen corresponding path program 1 times [2023-12-02 13:07:01,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:07:01,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241005786] [2023-12-02 13:07:01,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:07:01,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:07:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:07:02,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:07:02,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241005786] [2023-12-02 13:07:02,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 13:07:02,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346761596] [2023-12-02 13:07:02,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:07:02,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:07:02,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:07:02,025 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:07:02,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 13:07:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:07:03,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 5260 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:07:03,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:07:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-12-02 13:07:04,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:07:04,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346761596] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:07:04,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:07:04,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:07:04,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748792864] [2023-12-02 13:07:04,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:07:04,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:07:04,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:07:04,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:07:04,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:07:04,024 INFO L87 Difference]: Start difference. First operand 144716 states and 217779 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 13:07:05,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:07:11,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:07:18,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:07:22,990 WARN L539 Checker$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 13:07:24,997 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 13:07:27,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:07:27,006 INFO L93 Difference]: Finished difference Result 273083 states and 409057 transitions. [2023-12-02 13:07:27,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:07:27,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 243 [2023-12-02 13:07:27,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:07:27,632 INFO L225 Difference]: With dead ends: 273083 [2023-12-02 13:07:27,632 INFO L226 Difference]: Without dead ends: 146204 [2023-12-02 13:07:28,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:07:28,183 INFO L413 NwaCegarLoop]: 2998 mSDtfsCounter, 3342 mSDsluCounter, 5968 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3346 SdHoareTripleChecker+Valid, 8966 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:07:28,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3346 Valid, 8966 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1146 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2023-12-02 13:07:28,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146204 states. [2023-12-02 13:07:35,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146204 to 145196. [2023-12-02 13:07:36,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145196 states, 91859 states have (on average 1.319282813877791) internal successors, (121188), 97931 states have internal predecessors, (121188), 44380 states have call successors, (44380), 9245 states have call predecessors, (44380), 8956 states have return successors, (52579), 41139 states have call predecessors, (52579), 44379 states have call successors, (52579) [2023-12-02 13:07:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145196 states to 145196 states and 218147 transitions. [2023-12-02 13:07:37,419 INFO L78 Accepts]: Start accepts. Automaton has 145196 states and 218147 transitions. Word has length 243 [2023-12-02 13:07:37,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:07:37,420 INFO L495 AbstractCegarLoop]: Abstraction has 145196 states and 218147 transitions. [2023-12-02 13:07:37,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 13:07:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 145196 states and 218147 transitions. [2023-12-02 13:07:37,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-02 13:07:37,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:07:37,690 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:37,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 13:07:37,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 13:07:37,890 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:07:37,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:07:37,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1711323929, now seen corresponding path program 1 times [2023-12-02 13:07:37,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:07:37,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686451828] [2023-12-02 13:07:37,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:07:37,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:07:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:07:38,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:07:38,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686451828] [2023-12-02 13:07:38,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 13:07:38,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291227772] [2023-12-02 13:07:38,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:07:38,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:07:38,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:07:38,094 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:07:38,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 13:07:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:07:39,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 5256 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:07:39,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:07:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-12-02 13:07:40,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:07:40,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291227772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:07:40,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:07:40,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:07:40,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344454171] [2023-12-02 13:07:40,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:07:40,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:07:40,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:07:40,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:07:40,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:07:40,100 INFO L87 Difference]: Start difference. First operand 145196 states and 218147 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 13:07:42,847 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 13:07:53,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:07:54,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:07:59,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:00,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:02,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:07,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:09,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:11,084 WARN L539 Checker$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 13:08:15,430 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 13:08:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:08:17,068 INFO L93 Difference]: Finished difference Result 279650 states and 418623 transitions. [2023-12-02 13:08:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:08:17,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 241 [2023-12-02 13:08:17,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:08:17,953 INFO L225 Difference]: With dead ends: 279650 [2023-12-02 13:08:17,953 INFO L226 Difference]: Without dead ends: 146415 [2023-12-02 13:08:18,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:08:18,480 INFO L413 NwaCegarLoop]: 3043 mSDtfsCounter, 3342 mSDsluCounter, 9096 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 8 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 12139 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:08:18,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3342 Valid, 12139 Invalid, 1542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1528 Invalid, 6 Unknown, 0 Unchecked, 29.3s Time] [2023-12-02 13:08:18,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146415 states. [2023-12-02 13:08:26,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146415 to 145516. [2023-12-02 13:08:26,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145516 states, 92179 states have (on average 1.319215873463587) internal successors, (121604), 98219 states have internal predecessors, (121604), 44348 states have call successors, (44348), 9277 states have call predecessors, (44348), 8988 states have return successors, (52419), 41139 states have call predecessors, (52419), 44347 states have call successors, (52419) [2023-12-02 13:08:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145516 states to 145516 states and 218371 transitions. [2023-12-02 13:08:28,003 INFO L78 Accepts]: Start accepts. Automaton has 145516 states and 218371 transitions. Word has length 241 [2023-12-02 13:08:28,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:08:28,003 INFO L495 AbstractCegarLoop]: Abstraction has 145516 states and 218371 transitions. [2023-12-02 13:08:28,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-02 13:08:28,004 INFO L276 IsEmpty]: Start isEmpty. Operand 145516 states and 218371 transitions. [2023-12-02 13:08:28,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-02 13:08:28,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:08:28,276 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:28,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 13:08:28,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:28,477 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:08:28,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:08:28,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1033280996, now seen corresponding path program 1 times [2023-12-02 13:08:28,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:08:28,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760529397] [2023-12-02 13:08:28,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:28,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:08:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-12-02 13:08:28,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:08:28,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760529397] [2023-12-02 13:08:28,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760529397] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:08:28,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276614987] [2023-12-02 13:08:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:08:28,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:08:28,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:08:28,998 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:08:28,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 13:08:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:08:30,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 5602 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:08:30,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:08:30,798 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-12-02 13:08:30,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:08:30,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276614987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:08:30,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:08:30,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 13:08:30,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129665477] [2023-12-02 13:08:30,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:08:30,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:08:30,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:08:30,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:08:30,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:08:30,800 INFO L87 Difference]: Start difference. First operand 145516 states and 218371 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:08:33,560 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 13:08:35,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:45,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:08:47,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:08:52,885 WARN L539 Checker$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 13:08:54,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:08:59,588 WARN L539 Checker$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 13:09:02,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:09:04,132 WARN L539 Checker$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 13:09:07,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:09:08,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:09:09,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:09,809 INFO L93 Difference]: Finished difference Result 279842 states and 418431 transitions. [2023-12-02 13:09:09,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:09:09,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 260 [2023-12-02 13:09:09,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:10,525 INFO L225 Difference]: With dead ends: 279842 [2023-12-02 13:09:10,525 INFO L226 Difference]: Without dead ends: 146255 [2023-12-02 13:09:11,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:09:11,222 INFO L413 NwaCegarLoop]: 3043 mSDtfsCounter, 3340 mSDsluCounter, 9097 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 8 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3340 SdHoareTripleChecker+Valid, 12140 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:11,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3340 Valid, 12140 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1530 Invalid, 6 Unknown, 0 Unchecked, 31.4s Time] [2023-12-02 13:09:11,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146255 states. [2023-12-02 13:09:19,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146255 to 145308. [2023-12-02 13:09:19,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145308 states, 92083 states have (on average 1.3188536429091147) internal successors, (121444), 98075 states have internal predecessors, (121444), 44252 states have call successors, (44252), 9277 states have call predecessors, (44252), 8972 states have return successors, (52099), 41075 states have call predecessors, (52099), 44251 states have call successors, (52099) [2023-12-02 13:09:20,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145308 states to 145308 states and 217795 transitions. [2023-12-02 13:09:20,602 INFO L78 Accepts]: Start accepts. Automaton has 145308 states and 217795 transitions. Word has length 260 [2023-12-02 13:09:20,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:20,602 INFO L495 AbstractCegarLoop]: Abstraction has 145308 states and 217795 transitions. [2023-12-02 13:09:20,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:09:20,603 INFO L276 IsEmpty]: Start isEmpty. Operand 145308 states and 217795 transitions. [2023-12-02 13:09:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-12-02 13:09:20,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:20,854 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:20,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-02 13:09:21,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:21,055 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:09:21,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:21,055 INFO L85 PathProgramCache]: Analyzing trace with hash 706562143, now seen corresponding path program 1 times [2023-12-02 13:09:21,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:21,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828861926] [2023-12-02 13:09:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:21,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-12-02 13:09:21,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:21,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828861926] [2023-12-02 13:09:21,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828861926] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:09:21,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110560193] [2023-12-02 13:09:21,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:21,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:21,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:09:21,610 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:09:21,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 13:09:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:23,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 5604 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:09:23,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:09:23,584 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-12-02 13:09:23,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:09:23,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110560193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:09:23,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:09:23,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-02 13:09:23,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397563163] [2023-12-02 13:09:23,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:09:23,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:09:23,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:23,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:09:23,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:09:23,587 INFO L87 Difference]: Start difference. First operand 145308 states and 217795 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:09:25,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:09:27,552 WARN L539 Checker$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 13:09:37,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 13:09:42,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:09:45,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:09:48,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:09:50,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:50,712 INFO L93 Difference]: Finished difference Result 273971 states and 408777 transitions. [2023-12-02 13:09:50,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:09:50,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 261 [2023-12-02 13:09:50,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:51,555 INFO L225 Difference]: With dead ends: 273971 [2023-12-02 13:09:51,555 INFO L226 Difference]: Without dead ends: 146220 [2023-12-02 13:09:52,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:09:52,062 INFO L413 NwaCegarLoop]: 2998 mSDtfsCounter, 3341 mSDsluCounter, 5968 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3345 SdHoareTripleChecker+Valid, 8966 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:52,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3345 Valid, 8966 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1146 Invalid, 3 Unknown, 0 Unchecked, 18.6s Time] [2023-12-02 13:09:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146220 states. [2023-12-02 13:10:01,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146220 to 144996. [2023-12-02 13:10:01,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144996 states, 91939 states have (on average 1.3183088787130597) internal successors, (121204), 97859 states have internal predecessors, (121204), 44108 states have call successors, (44108), 9277 states have call predecessors, (44108), 8948 states have return successors, (51683), 40979 states have call predecessors, (51683), 44107 states have call successors, (51683) [2023-12-02 13:10:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144996 states to 144996 states and 216995 transitions. [2023-12-02 13:10:02,436 INFO L78 Accepts]: Start accepts. Automaton has 144996 states and 216995 transitions. Word has length 261 [2023-12-02 13:10:02,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:10:02,437 INFO L495 AbstractCegarLoop]: Abstraction has 144996 states and 216995 transitions. [2023-12-02 13:10:02,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:10:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 144996 states and 216995 transitions. [2023-12-02 13:10:02,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-12-02 13:10:02,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:10:02,650 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:02,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 13:10:02,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:10:02,851 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:10:02,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:10:02,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1042657894, now seen corresponding path program 1 times [2023-12-02 13:10:02,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:10:02,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451934275] [2023-12-02 13:10:02,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:10:02,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:10:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:10:09,958 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2023-12-02 13:10:09,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:10:09,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451934275] [2023-12-02 13:10:09,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451934275] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:10:09,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170927520] [2023-12-02 13:10:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:10:09,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:10:09,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:10:09,960 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:10:09,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33432561-8c0a-4be3-8706-f93fb1bc0183/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-02 13:10:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:10:12,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 4889 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 13:10:12,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:10:12,698 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 96 proven. 1 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-12-02 13:10:12,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:10:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-02 13:10:13,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170927520] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:10:13,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1960347790] [2023-12-02 13:10:13,034 INFO L159 IcfgInterpreter]: Started Sifa with 146 locations of interest [2023-12-02 13:10:13,034 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:10:13,039 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:10:13,045 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:10:13,045 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:12:08,046 WARN L293 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 3901 DAG size of output: 3887 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 13:12:22,254 WARN L293 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 3901 DAG size of output: 3887 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)