./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c9ee75e44352b6ea6b091abc908af4681506ed391b6529699b0d4480d6bf973b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:24,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:24,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:08:24,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:24,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:25,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:25,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:25,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:25,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:25,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:25,044 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:25,044 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:25,045 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:25,047 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:08:25,047 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:25,048 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:25,049 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:08:25,049 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:08:25,050 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:25,051 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:08:25,051 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:08:25,055 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:08:25,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:25,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:25,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:08:25,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:25,059 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:25,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:25,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:25,061 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:08:25,063 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:08:25,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:25,064 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:25,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:25,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:25,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:25,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:25,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:25,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:25,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:25,067 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:08:25,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:08:25,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:25,068 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:25,069 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:25,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:25,069 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_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9ee75e44352b6ea6b091abc908af4681506ed391b6529699b0d4480d6bf973b [2023-11-23 21:08:25,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:25,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:25,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:25,531 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:25,533 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:25,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2023-11-23 21:08:29,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:29,734 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:29,735 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2023-11-23 21:08:29,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/data/92ea595a7/c2d07b7c5c8e4478bf7eb54b684e5946/FLAGc97fe93a8 [2023-11-23 21:08:29,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/data/92ea595a7/c2d07b7c5c8e4478bf7eb54b684e5946 [2023-11-23 21:08:29,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:29,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:29,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:29,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:29,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:29,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:29" (1/1) ... [2023-11-23 21:08:29,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4575ceb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:29, skipping insertion in model container [2023-11-23 21:08:29,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:29" (1/1) ... [2023-11-23 21:08:29,920 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:30,555 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2550] [2023-11-23 21:08:30,559 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2551-2552] [2023-11-23 21:08:31,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:31,410 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:31,649 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2550] [2023-11-23 21:08:31,650 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2551-2552] [2023-11-23 21:08:31,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2634] [2023-11-23 21:08:31,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("661:\n\tcall __sw_hweight32\n662:\n.pushsection .altinstructions,\"a\"\n .long 661b - .\n .long 6631f - .\n .word (4*32+23)\n .byte 662b-661b\n .byte 6641f-6631f\n.popsection\n.pushsection .discard,\"aw\",@progbits\n .byte 0xff + (6641f-6631f) - (662b-661b)\n.popsection\n.pushsection .altinstr_replacement, \"ax\"\n6631:\n\t.byte 0xf3,0x40,0x0f,0xb8,0xc7\n6641:\n\t.popsection": "=a" (res): "D" (w)); [2643] [2023-11-23 21:08:31,660 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" (179), "i" (12UL)); [2687-2688] [2023-11-23 21:08:31,661 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c6;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c5\n .byte 772b-771b\n .short %c7\n.popsection\n": "=D" (__edi), "=S" (__esi), "=d" (__edx), "=c" (__ecx), "=a" (__eax): [paravirt_typenum] "i" (34UL), [paravirt_opptr] "i" (& pv_cpu_ops.read_tsc), [paravirt_clobber] "i" (511): "memory", "cc", "r8", "r9", "r10", "r11"); [2693-2696] [2023-11-23 21:08:31,665 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [2719-2720] [2023-11-23 21:08:31,666 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [2725-2727] [2023-11-23 21:08:31,667 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"./arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [2749-2750] [2023-11-23 21:08:31,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [2755-2757] [2023-11-23 21:08:31,678 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" (814), "i" (12UL)); [2778-2779] [2023-11-23 21:08:31,679 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" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [2784-2786] [2023-11-23 21:08:31,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [2810] [2023-11-23 21:08:31,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [2818] [2023-11-23 21:08:31,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:31,937 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:31,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31 WrapperNode [2023-11-23 21:08:31,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:31,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:31,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:31,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:31,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,244 INFO L138 Inliner]: procedures = 118, calls = 678, calls flagged for inlining = 41, calls inlined = 39, statements flattened = 2563 [2023-11-23 21:08:32,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:32,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:32,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:32,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:32,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:32,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:32,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:32,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:32,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (1/1) ... [2023-11-23 21:08:32,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:32,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:32,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:32,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2023-11-23 21:08:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2023-11-23 21:08:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 21:08:32,634 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 21:08:32,634 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2023-11-23 21:08:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2023-11-23 21:08:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:08:32,635 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:08:32,635 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2023-11-23 21:08:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2023-11-23 21:08:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:08:32,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:08:32,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:08:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2023-11-23 21:08:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2023-11-23 21:08:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2023-11-23 21:08:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2023-11-23 21:08:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:08:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:08:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-23 21:08:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-23 21:08:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2023-11-23 21:08:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2023-11-23 21:08:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2023-11-23 21:08:32,639 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2023-11-23 21:08:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:08:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-23 21:08:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-23 21:08:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2023-11-23 21:08:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2023-11-23 21:08:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:08:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:08:32,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:08:32,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:08:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:08:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:08:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:32,642 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:32,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:08:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2023-11-23 21:08:32,643 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2023-11-23 21:08:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:32,643 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2023-11-23 21:08:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2023-11-23 21:08:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:08:32,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:08:32,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:08:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:08:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-23 21:08:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-23 21:08:32,645 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-23 21:08:32,645 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-23 21:08:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:08:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:08:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-23 21:08:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-23 21:08:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2023-11-23 21:08:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2023-11-23 21:08:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:08:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2023-11-23 21:08:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2023-11-23 21:08:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-23 21:08:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-23 21:08:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2023-11-23 21:08:32,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2023-11-23 21:08:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2023-11-23 21:08:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2023-11-23 21:08:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:08:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-23 21:08:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-23 21:08:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2023-11-23 21:08:32,650 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2023-11-23 21:08:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:08:32,650 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-23 21:08:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-23 21:08:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2023-11-23 21:08:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2023-11-23 21:08:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2023-11-23 21:08:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2023-11-23 21:08:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:08:32,652 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:08:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2023-11-23 21:08:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2023-11-23 21:08:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:08:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:08:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:08:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:08:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:08:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2023-11-23 21:08:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2023-11-23 21:08:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-23 21:08:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-23 21:08:32,655 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2023-11-23 21:08:32,655 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2023-11-23 21:08:32,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:08:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:08:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:32,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2023-11-23 21:08:32,657 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2023-11-23 21:08:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-23 21:08:32,657 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-23 21:08:33,088 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:33,092 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:33,413 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:08:35,978 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:37,775 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:37,775 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 21:08:37,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:37 BoogieIcfgContainer [2023-11-23 21:08:37,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:37,781 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:37,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:37,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:37,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:29" (1/3) ... [2023-11-23 21:08:37,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78205ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:37, skipping insertion in model container [2023-11-23 21:08:37,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:31" (2/3) ... [2023-11-23 21:08:37,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78205ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:37, skipping insertion in model container [2023-11-23 21:08:37,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:37" (3/3) ... [2023-11-23 21:08:37,795 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2023-11-23 21:08:37,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:37,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 235 error locations. [2023-11-23 21:08:37,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:37,920 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;@2d2f9253, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:37,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 235 error locations. [2023-11-23 21:08:37,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 975 states, 558 states have (on average 1.6505376344086022) internal successors, (921), 808 states have internal predecessors, (921), 138 states have call successors, (138), 45 states have call predecessors, (138), 44 states have return successors, (135), 130 states have call predecessors, (135), 135 states have call successors, (135) [2023-11-23 21:08:37,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:08:37,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:37,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:37,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr97ASSERT_VIOLATIONINTEGER_OVERFLOW === [analog_pollErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 232 more)] === [2023-11-23 21:08:37,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1392207840, now seen corresponding path program 1 times [2023-11-23 21:08:37,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:37,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148656087] [2023-11-23 21:08:37,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:37,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:38,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:38,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:08:38,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148656087] [2023-11-23 21:08:38,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148656087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:38,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:38,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:08:38,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334837998] [2023-11-23 21:08:38,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:38,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:38,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:08:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:38,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:38,742 INFO L87 Difference]: Start difference. First operand has 975 states, 558 states have (on average 1.6505376344086022) internal successors, (921), 808 states have internal predecessors, (921), 138 states have call successors, (138), 45 states have call predecessors, (138), 44 states have return successors, (135), 130 states have call predecessors, (135), 135 states have call successors, (135) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:39,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:39,585 INFO L93 Difference]: Finished difference Result 1974 states and 2452 transitions. [2023-11-23 21:08:39,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:39,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-23 21:08:39,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:39,615 INFO L225 Difference]: With dead ends: 1974 [2023-11-23 21:08:39,615 INFO L226 Difference]: Without dead ends: 985 [2023-11-23 21:08:39,632 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 [2023-11-23 21:08:39,636 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 69 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:39,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2035 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:08:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2023-11-23 21:08:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 979. [2023-11-23 21:08:39,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 585 states have (on average 1.6) internal successors, (936), 807 states have internal predecessors, (936), 135 states have call successors, (135), 46 states have call predecessors, (135), 46 states have return successors, (135), 130 states have call predecessors, (135), 135 states have call successors, (135) [2023-11-23 21:08:39,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1206 transitions. [2023-11-23 21:08:39,799 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1206 transitions. Word has length 15 [2023-11-23 21:08:39,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:39,800 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1206 transitions. [2023-11-23 21:08:39,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:39,801 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1206 transitions. [2023-11-23 21:08:39,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 21:08:39,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:39,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:39,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:08:39,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr105ASSERT_VIOLATIONINTEGER_OVERFLOW === [analog_pollErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 232 more)] === [2023-11-23 21:08:39,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:39,804 INFO L85 PathProgramCache]: Analyzing trace with hash -909508096, now seen corresponding path program 1 times [2023-11-23 21:08:39,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:39,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245948078] [2023-11-23 21:08:39,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:39,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:39,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:08:39,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245948078] [2023-11-23 21:08:39,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245948078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:39,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:39,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:39,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021863764] [2023-11-23 21:08:39,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:39,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:39,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:08:39,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:39,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:39,974 INFO L87 Difference]: Start difference. First operand 979 states and 1206 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:40,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:40,659 INFO L93 Difference]: Finished difference Result 1983 states and 2462 transitions. [2023-11-23 21:08:40,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:40,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-23 21:08:40,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:40,675 INFO L225 Difference]: With dead ends: 1983 [2023-11-23 21:08:40,675 INFO L226 Difference]: Without dead ends: 1015 [2023-11-23 21:08:40,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:40,687 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 20 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:40,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1991 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:08:40,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2023-11-23 21:08:40,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1013. [2023-11-23 21:08:40,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 617 states have (on average 1.5948136142625609) internal successors, (984), 839 states have internal predecessors, (984), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 132 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-23 21:08:40,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1258 transitions. [2023-11-23 21:08:40,779 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1258 transitions. Word has length 17 [2023-11-23 21:08:40,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:40,780 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1258 transitions. [2023-11-23 21:08:40,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1258 transitions. [2023-11-23 21:08:40,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:08:40,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:40,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:40,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:08:40,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONINTEGER_OVERFLOW === [analog_pollErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 232 more)] === [2023-11-23 21:08:40,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:40,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1635141961, now seen corresponding path program 1 times [2023-11-23 21:08:40,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:40,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010369010] [2023-11-23 21:08:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:40,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:40,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:08:40,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010369010] [2023-11-23 21:08:40,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010369010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:40,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:40,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:40,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978372675] [2023-11-23 21:08:40,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:40,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:40,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:08:40,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:40,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:40,998 INFO L87 Difference]: Start difference. First operand 1013 states and 1258 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:41,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:41,690 INFO L93 Difference]: Finished difference Result 1079 states and 1362 transitions. [2023-11-23 21:08:41,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:41,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-23 21:08:41,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:41,701 INFO L225 Difference]: With dead ends: 1079 [2023-11-23 21:08:41,702 INFO L226 Difference]: Without dead ends: 1077 [2023-11-23 21:08:41,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:41,704 INFO L413 NwaCegarLoop]: 1006 mSDtfsCounter, 21 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:41,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2004 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:08:41,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2023-11-23 21:08:41,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1033. [2023-11-23 21:08:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 637 states have (on average 1.5886970172684458) internal successors, (1012), 859 states have internal predecessors, (1012), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 132 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-23 21:08:41,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1286 transitions. [2023-11-23 21:08:41,768 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1286 transitions. Word has length 19 [2023-11-23 21:08:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:41,769 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1286 transitions. [2023-11-23 21:08:41,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1286 transitions. [2023-11-23 21:08:41,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 21:08:41,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:41,771 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:41,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:08:41,772 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr105ASSERT_VIOLATIONINTEGER_OVERFLOW === [analog_pollErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 232 more)] === [2023-11-23 21:08:41,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1795568839, now seen corresponding path program 1 times [2023-11-23 21:08:41,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:41,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140527851] [2023-11-23 21:08:41,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:41,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:42,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:42,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:08:42,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140527851] [2023-11-23 21:08:42,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140527851] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:08:42,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196980117] [2023-11-23 21:08:42,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:42,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:42,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:42,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:08:42,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:08:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:42,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:42,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:42,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:42,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:42,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196980117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:42,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:08:42,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-23 21:08:42,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373526942] [2023-11-23 21:08:42,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:42,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:08:42,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:08:42,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:08:42,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:08:42,540 INFO L87 Difference]: Start difference. First operand 1033 states and 1286 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:43,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:43,205 INFO L93 Difference]: Finished difference Result 1035 states and 1286 transitions. [2023-11-23 21:08:43,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:08:43,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-23 21:08:43,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:43,214 INFO L225 Difference]: With dead ends: 1035 [2023-11-23 21:08:43,215 INFO L226 Difference]: Without dead ends: 1033 [2023-11-23 21:08:43,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:08:43,217 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 44 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:43,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 2001 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:08:43,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2023-11-23 21:08:43,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1031. [2023-11-23 21:08:43,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 637 states have (on average 1.5824175824175823) internal successors, (1008), 857 states have internal predecessors, (1008), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 132 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-23 21:08:43,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1282 transitions. [2023-11-23 21:08:43,270 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1282 transitions. Word has length 20 [2023-11-23 21:08:43,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:43,270 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1282 transitions. [2023-11-23 21:08:43,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:43,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1282 transitions. [2023-11-23 21:08:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 21:08:43,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:43,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:43,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:43,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:43,499 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr106ASSERT_VIOLATIONINTEGER_OVERFLOW === [analog_pollErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 232 more)] === [2023-11-23 21:08:43,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash -171938252, now seen corresponding path program 1 times [2023-11-23 21:08:43,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:43,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439543221] [2023-11-23 21:08:43,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:43,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:43,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:08:43,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:08:43,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439543221] [2023-11-23 21:08:43,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439543221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:43,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:43,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:43,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965463639] [2023-11-23 21:08:43,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:43,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:43,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:08:43,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:43,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:43,649 INFO L87 Difference]: Start difference. First operand 1031 states and 1282 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:44,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:44,244 INFO L93 Difference]: Finished difference Result 1033 states and 1282 transitions. [2023-11-23 21:08:44,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:44,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-23 21:08:44,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:44,255 INFO L225 Difference]: With dead ends: 1033 [2023-11-23 21:08:44,256 INFO L226 Difference]: Without dead ends: 1032 [2023-11-23 21:08:44,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:44,258 INFO L413 NwaCegarLoop]: 995 mSDtfsCounter, 20 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:44,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1988 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:08:44,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2023-11-23 21:08:44,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1026. [2023-11-23 21:08:44,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 633 states have (on average 1.5829383886255923) internal successors, (1002), 852 states have internal predecessors, (1002), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 132 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-23 21:08:44,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1276 transitions. [2023-11-23 21:08:44,378 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1276 transitions. Word has length 21 [2023-11-23 21:08:44,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:44,379 INFO L495 AbstractCegarLoop]: Abstraction has 1026 states and 1276 transitions. [2023-11-23 21:08:44,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:44,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1276 transitions. [2023-11-23 21:08:44,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 21:08:44,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:44,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:44,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:08:44,387 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONINTEGER_OVERFLOW === [analog_pollErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 232 more)] === [2023-11-23 21:08:44,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:44,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1778387568, now seen corresponding path program 1 times [2023-11-23 21:08:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:44,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18781536] [2023-11-23 21:08:44,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:44,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:44,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:08:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18781536] [2023-11-23 21:08:44,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18781536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:08:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592544560] [2023-11-23 21:08:44,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:44,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:44,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:44,586 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:08:44,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:08:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:44,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:44,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:45,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:45,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:45,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592544560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:45,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:08:45,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-23 21:08:45,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800702484] [2023-11-23 21:08:45,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:45,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:08:45,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:08:45,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:08:45,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:08:45,030 INFO L87 Difference]: Start difference. First operand 1026 states and 1276 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:45,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:45,604 INFO L93 Difference]: Finished difference Result 1073 states and 1346 transitions. [2023-11-23 21:08:45,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:08:45,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-23 21:08:45,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:45,617 INFO L225 Difference]: With dead ends: 1073 [2023-11-23 21:08:45,617 INFO L226 Difference]: Without dead ends: 1072 [2023-11-23 21:08:45,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:08:45,621 INFO L413 NwaCegarLoop]: 1015 mSDtfsCounter, 37 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:45,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2013 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:08:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-11-23 21:08:45,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1025. [2023-11-23 21:08:45,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 633 states have (on average 1.5766192733017377) internal successors, (998), 851 states have internal predecessors, (998), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 132 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-23 21:08:45,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1272 transitions. [2023-11-23 21:08:45,675 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1272 transitions. Word has length 24 [2023-11-23 21:08:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:45,675 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1272 transitions. [2023-11-23 21:08:45,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:08:45,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1272 transitions. [2023-11-23 21:08:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 21:08:45,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:45,677 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:45,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:45,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 21:08:45,891 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr102ASSERT_VIOLATIONINTEGER_OVERFLOW === [analog_pollErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, analog_pollErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 232 more)] === [2023-11-23 21:08:45,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:45,892 INFO L85 PathProgramCache]: Analyzing trace with hash -704557698, now seen corresponding path program 1 times [2023-11-23 21:08:45,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:45,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687330856] [2023-11-23 21:08:45,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:45,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:46,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:08:46,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687330856] [2023-11-23 21:08:46,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687330856] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:08:46,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016685236] [2023-11-23 21:08:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:46,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:08:46,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:46,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:08:46,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf14c458-124e-4bd5-9681-3fbaf199417d/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:08:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:46,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:46,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:46,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:46,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:08:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:46,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016685236] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:08:46,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [212156640] [2023-11-23 21:08:46,574 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-11-23 21:08:46,575 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:08:46,579 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:08:46,585 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:08:46,585 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs