./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 cf1a7837 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_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/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_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:10:20,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:20,922 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 00:10:20,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:20,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:20,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:20,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:20,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:20,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:20,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:20,990 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:20,991 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:20,992 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:20,993 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:20,994 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:20,994 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:20,995 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:20,995 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:20,996 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:20,996 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:20,997 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:20,997 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:20,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:20,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:20,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:21,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:21,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:21,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:21,002 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:21,002 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:10:21,003 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:10:21,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:21,004 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:21,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:21,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:21,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:21,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:21,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:21,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:21,006 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:21,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:21,006 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:21,007 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:21,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:21,007 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_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9ee75e44352b6ea6b091abc908af4681506ed391b6529699b0d4480d6bf973b [2023-11-12 00:10:21,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:21,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:21,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:21,331 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:21,332 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:21,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/../../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 [2023-11-12 00:10:24,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:25,077 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:25,080 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/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 [2023-11-12 00:10:25,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/data/4fbd90c78/7edbfbf1a1a6474aa0b37af311a0d00f/FLAGb4910f423 [2023-11-12 00:10:25,137 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/data/4fbd90c78/7edbfbf1a1a6474aa0b37af311a0d00f [2023-11-12 00:10:25,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:25,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:25,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:25,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:25,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:25,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:25" (1/1) ... [2023-11-12 00:10:25,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3393bdc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:25, skipping insertion in model container [2023-11-12 00:10:25,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:25" (1/1) ... [2023-11-12 00:10:25,255 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:25,649 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2550] [2023-11-12 00:10:25,649 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2551-2552] [2023-11-12 00:10:26,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:26,510 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:26,613 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2550] [2023-11-12 00:10:26,614 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2551-2552] [2023-11-12 00:10:26,617 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] [2023-11-12 00:10:26,619 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] [2023-11-12 00:10:26,623 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] [2023-11-12 00:10:26,624 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] [2023-11-12 00:10:26,626 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] [2023-11-12 00:10:26,627 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] [2023-11-12 00:10:26,629 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] [2023-11-12 00:10:26,629 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] [2023-11-12 00:10:26,637 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] [2023-11-12 00:10:26,638 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] [2023-11-12 00:10:26,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [2810] [2023-11-12 00:10:26,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [2818] [2023-11-12 00:10:26,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:26,879 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:26,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26 WrapperNode [2023-11-12 00:10:26,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:26,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:26,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:26,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:26,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:26,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,125 INFO L138 Inliner]: procedures = 118, calls = 678, calls flagged for inlining = 41, calls inlined = 39, statements flattened = 2563 [2023-11-12 00:10:27,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:27,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:27,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:27,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:27,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:27,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:27,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:27,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:27,332 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (1/1) ... [2023-11-12 00:10:27,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:27,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:27,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:27,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:27,412 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2023-11-12 00:10:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2023-11-12 00:10:27,412 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-12 00:10:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-12 00:10:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2023-11-12 00:10:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2023-11-12 00:10:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-12 00:10:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-12 00:10:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2023-11-12 00:10:27,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2023-11-12 00:10:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:10:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:10:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:10:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2023-11-12 00:10:27,418 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2023-11-12 00:10:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2023-11-12 00:10:27,421 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2023-11-12 00:10:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:10:27,421 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:10:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-12 00:10:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-12 00:10:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2023-11-12 00:10:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2023-11-12 00:10:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2023-11-12 00:10:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2023-11-12 00:10:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:10:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-12 00:10:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-12 00:10:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2023-11-12 00:10:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2023-11-12 00:10:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:10:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:10:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:10:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:10:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:10:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:10:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:10:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:10:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:10:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2023-11-12 00:10:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2023-11-12 00:10:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2023-11-12 00:10:27,428 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2023-11-12 00:10:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:10:27,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:10:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:10:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:10:27,431 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-12 00:10:27,431 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-12 00:10:27,432 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-12 00:10:27,432 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-12 00:10:27,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:10:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:10:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-12 00:10:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-12 00:10:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2023-11-12 00:10:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2023-11-12 00:10:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:10:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2023-11-12 00:10:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2023-11-12 00:10:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-12 00:10:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-12 00:10:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2023-11-12 00:10:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2023-11-12 00:10:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2023-11-12 00:10:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2023-11-12 00:10:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:10:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-12 00:10:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-12 00:10:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2023-11-12 00:10:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2023-11-12 00:10:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:10:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-12 00:10:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-12 00:10:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2023-11-12 00:10:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2023-11-12 00:10:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2023-11-12 00:10:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2023-11-12 00:10:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:10:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:10:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2023-11-12 00:10:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2023-11-12 00:10:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:10:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:10:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:10:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:10:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2023-11-12 00:10:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2023-11-12 00:10:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-12 00:10:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-12 00:10:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2023-11-12 00:10:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2023-11-12 00:10:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:10:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:10:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2023-11-12 00:10:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2023-11-12 00:10:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-12 00:10:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-12 00:10:27,855 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:27,858 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:28,241 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:10:30,428 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:31,984 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:31,985 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 00:10:31,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:31 BoogieIcfgContainer [2023-11-12 00:10:31,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:31,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:31,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:31,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:31,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:25" (1/3) ... [2023-11-12 00:10:31,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7205e042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:31, skipping insertion in model container [2023-11-12 00:10:31,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:26" (2/3) ... [2023-11-12 00:10:31,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7205e042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:31, skipping insertion in model container [2023-11-12 00:10:31,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:31" (3/3) ... [2023-11-12 00:10:31,999 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 [2023-11-12 00:10:32,021 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:32,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 235 error locations. [2023-11-12 00:10:32,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:32,128 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;@4d188696, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:32,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 235 error locations. [2023-11-12 00:10:32,141 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) [2023-11-12 00:10:32,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:10:32,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:32,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:32,153 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)] === [2023-11-12 00:10:32,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:32,162 INFO L85 PathProgramCache]: Analyzing trace with hash 520661273, now seen corresponding path program 1 times [2023-11-12 00:10:32,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:32,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831013054] [2023-11-12 00:10:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:32,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:32,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831013054] [2023-11-12 00:10:32,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831013054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:32,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:32,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:32,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271953937] [2023-11-12 00:10:32,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:32,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:32,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:32,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:32,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:32,795 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) [2023-11-12 00:10:33,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:33,510 INFO L93 Difference]: Finished difference Result 1974 states and 2452 transitions. [2023-11-12 00:10:33,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:33,513 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 [2023-11-12 00:10:33,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:33,533 INFO L225 Difference]: With dead ends: 1974 [2023-11-12 00:10:33,534 INFO L226 Difference]: Without dead ends: 985 [2023-11-12 00:10:33,543 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 [2023-11-12 00:10:33,547 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, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:33,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2035 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 00:10:33,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2023-11-12 00:10:33,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 979. [2023-11-12 00:10:33,656 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) [2023-11-12 00:10:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1206 transitions. [2023-11-12 00:10:33,667 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1206 transitions. Word has length 15 [2023-11-12 00:10:33,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:33,667 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1206 transitions. [2023-11-12 00:10:33,668 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) [2023-11-12 00:10:33,668 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1206 transitions. [2023-11-12 00:10:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:10:33,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:33,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:33,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:10:33,670 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)] === [2023-11-12 00:10:33,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash -887340499, now seen corresponding path program 1 times [2023-11-12 00:10:33,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:33,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765163624] [2023-11-12 00:10:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:33,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:33,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:33,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:33,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765163624] [2023-11-12 00:10:33,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765163624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:33,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:33,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:10:33,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326397089] [2023-11-12 00:10:33,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:33,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:33,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:33,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:33,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:33,846 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) [2023-11-12 00:10:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:34,515 INFO L93 Difference]: Finished difference Result 1983 states and 2462 transitions. [2023-11-12 00:10:34,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:34,516 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 [2023-11-12 00:10:34,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:34,524 INFO L225 Difference]: With dead ends: 1983 [2023-11-12 00:10:34,525 INFO L226 Difference]: Without dead ends: 1015 [2023-11-12 00:10:34,528 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 [2023-11-12 00:10:34,530 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 [2023-11-12 00:10:34,530 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] [2023-11-12 00:10:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2023-11-12 00:10:34,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1013. [2023-11-12 00:10:34,574 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) [2023-11-12 00:10:34,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1258 transitions. [2023-11-12 00:10:34,583 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1258 transitions. Word has length 17 [2023-11-12 00:10:34,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:34,584 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1258 transitions. [2023-11-12 00:10:34,584 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) [2023-11-12 00:10:34,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1258 transitions. [2023-11-12 00:10:34,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:10:34,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:34,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:34,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:10:34,586 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)] === [2023-11-12 00:10:34,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:34,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1810935665, now seen corresponding path program 1 times [2023-11-12 00:10:34,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:34,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004972221] [2023-11-12 00:10:34,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:34,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:34,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:34,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004972221] [2023-11-12 00:10:34,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004972221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:34,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:34,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:10:34,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616571886] [2023-11-12 00:10:34,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:34,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:34,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:34,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:34,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:34,735 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) [2023-11-12 00:10:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:35,314 INFO L93 Difference]: Finished difference Result 1079 states and 1362 transitions. [2023-11-12 00:10:35,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:35,315 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 [2023-11-12 00:10:35,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:35,322 INFO L225 Difference]: With dead ends: 1079 [2023-11-12 00:10:35,322 INFO L226 Difference]: Without dead ends: 1077 [2023-11-12 00:10:35,323 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 [2023-11-12 00:10:35,325 INFO L413 NwaCegarLoop]: 1006 mSDtfsCounter, 21 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:35,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2004 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 00:10:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2023-11-12 00:10:35,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1033. [2023-11-12 00:10:35,359 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) [2023-11-12 00:10:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1286 transitions. [2023-11-12 00:10:35,366 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1286 transitions. Word has length 19 [2023-11-12 00:10:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:35,367 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1286 transitions. [2023-11-12 00:10:35,367 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) [2023-11-12 00:10:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1286 transitions. [2023-11-12 00:10:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:10:35,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:35,368 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:35,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:10:35,369 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)] === [2023-11-12 00:10:35,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:35,369 INFO L85 PathProgramCache]: Analyzing trace with hash 765486862, now seen corresponding path program 1 times [2023-11-12 00:10:35,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:35,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863325929] [2023-11-12 00:10:35,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:35,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:35,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:35,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863325929] [2023-11-12 00:10:35,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863325929] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:35,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208097490] [2023-11-12 00:10:35,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:35,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:35,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:35,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:35,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:10:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:35,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:10:35,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:35,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:35,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:10:35,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208097490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:35,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:10:35,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-12 00:10:35,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762324196] [2023-11-12 00:10:35,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:35,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:10:35,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:35,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:10:35,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:10:35,963 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) [2023-11-12 00:10:36,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:36,485 INFO L93 Difference]: Finished difference Result 1035 states and 1286 transitions. [2023-11-12 00:10:36,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:10:36,486 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 [2023-11-12 00:10:36,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:36,493 INFO L225 Difference]: With dead ends: 1035 [2023-11-12 00:10:36,493 INFO L226 Difference]: Without dead ends: 1033 [2023-11-12 00:10:36,494 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 [2023-11-12 00:10:36,495 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 44 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:36,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 2001 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 00:10:36,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2023-11-12 00:10:36,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1031. [2023-11-12 00:10:36,570 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) [2023-11-12 00:10:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1282 transitions. [2023-11-12 00:10:36,577 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1282 transitions. Word has length 20 [2023-11-12 00:10:36,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:36,578 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1282 transitions. [2023-11-12 00:10:36,578 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) [2023-11-12 00:10:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1282 transitions. [2023-11-12 00:10:36,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:10:36,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:36,580 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:36,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:36,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:36,788 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)] === [2023-11-12 00:10:36,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2039708467, now seen corresponding path program 1 times [2023-11-12 00:10:36,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:36,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172721569] [2023-11-12 00:10:36,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:36,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:10:36,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:36,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172721569] [2023-11-12 00:10:36,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172721569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:36,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:36,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:10:36,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852741907] [2023-11-12 00:10:36,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:36,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:36,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:36,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:36,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:36,894 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) [2023-11-12 00:10:37,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:37,451 INFO L93 Difference]: Finished difference Result 1033 states and 1282 transitions. [2023-11-12 00:10:37,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:37,452 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 [2023-11-12 00:10:37,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:37,459 INFO L225 Difference]: With dead ends: 1033 [2023-11-12 00:10:37,459 INFO L226 Difference]: Without dead ends: 1032 [2023-11-12 00:10:37,460 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 [2023-11-12 00:10:37,461 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 [2023-11-12 00:10:37,461 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] [2023-11-12 00:10:37,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2023-11-12 00:10:37,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1026. [2023-11-12 00:10:37,491 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) [2023-11-12 00:10:37,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1276 transitions. [2023-11-12 00:10:37,499 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1276 transitions. Word has length 21 [2023-11-12 00:10:37,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:37,499 INFO L495 AbstractCegarLoop]: Abstraction has 1026 states and 1276 transitions. [2023-11-12 00:10:37,499 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) [2023-11-12 00:10:37,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1276 transitions. [2023-11-12 00:10:37,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 00:10:37,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:37,501 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] [2023-11-12 00:10:37,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:10:37,502 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)] === [2023-11-12 00:10:37,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:37,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1515657572, now seen corresponding path program 1 times [2023-11-12 00:10:37,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:37,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351321887] [2023-11-12 00:10:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:37,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:37,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:37,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:37,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351321887] [2023-11-12 00:10:37,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351321887] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:37,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432814074] [2023-11-12 00:10:37,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:37,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:37,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:37,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:37,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:10:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:38,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:10:38,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:38,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:38,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:10:38,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432814074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:38,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:10:38,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-12 00:10:38,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506186181] [2023-11-12 00:10:38,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:38,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:10:38,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:38,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:10:38,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:10:38,039 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) [2023-11-12 00:10:38,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:38,592 INFO L93 Difference]: Finished difference Result 1073 states and 1346 transitions. [2023-11-12 00:10:38,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:10:38,593 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 [2023-11-12 00:10:38,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:38,600 INFO L225 Difference]: With dead ends: 1073 [2023-11-12 00:10:38,600 INFO L226 Difference]: Without dead ends: 1072 [2023-11-12 00:10:38,601 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 [2023-11-12 00:10:38,601 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 [2023-11-12 00:10:38,602 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] [2023-11-12 00:10:38,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-11-12 00:10:38,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1025. [2023-11-12 00:10:38,635 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) [2023-11-12 00:10:38,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1272 transitions. [2023-11-12 00:10:38,643 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1272 transitions. Word has length 24 [2023-11-12 00:10:38,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:38,643 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1272 transitions. [2023-11-12 00:10:38,643 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) [2023-11-12 00:10:38,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1272 transitions. [2023-11-12 00:10:38,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 00:10:38,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:38,645 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] [2023-11-12 00:10:38,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:38,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 00:10:38,852 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)] === [2023-11-12 00:10:38,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash 259258066, now seen corresponding path program 1 times [2023-11-12 00:10:38,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:38,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663428730] [2023-11-12 00:10:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:38,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:39,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663428730] [2023-11-12 00:10:39,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663428730] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:10:39,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538828272] [2023-11-12 00:10:39,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:39,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:39,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:39,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:10:39,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a33bf65-6ab5-431c-b291-21161c6c4b26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:10:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:39,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:10:39,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:39,463 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:39,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:10:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:10:39,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538828272] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:10:39,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [925896334] [2023-11-12 00:10:39,540 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-11-12 00:10:39,540 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:10:39,543 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:10:39,549 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:10:39,549 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs