./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 818c635cf736ceef0cf6e46266c8f75f5ad55dd0b6a806d4c2f32c53e0369659 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:05:47,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:05:47,390 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:05:47,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:05:47,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:05:47,445 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:05:47,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:05:47,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:05:47,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:05:47,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:05:47,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:05:47,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:05:47,453 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:05:47,454 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:05:47,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:05:47,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:05:47,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:05:47,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:05:47,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:05:47,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:05:47,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:05:47,459 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:05:47,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:05:47,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:05:47,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:05:47,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:05:47,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:05:47,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:05:47,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:05:47,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:05:47,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:05:47,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:05:47,465 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:05:47,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:05:47,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:05:47,466 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:05:47,467 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 818c635cf736ceef0cf6e46266c8f75f5ad55dd0b6a806d4c2f32c53e0369659 [2023-11-06 22:05:47,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:05:47,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:05:47,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:05:47,912 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:05:47,914 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:05:47,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i [2023-11-06 22:05:51,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:05:51,662 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:05:51,663 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i [2023-11-06 22:05:51,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/data/0c913b693/03e958a15f9f4aefb9e47b91f107ca49/FLAGaec1fe589 [2023-11-06 22:05:51,739 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/data/0c913b693/03e958a15f9f4aefb9e47b91f107ca49 [2023-11-06 22:05:51,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:05:51,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:05:51,749 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:05:51,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:05:51,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:05:51,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:05:51" (1/1) ... [2023-11-06 22:05:51,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416470a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:51, skipping insertion in model container [2023-11-06 22:05:51,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:05:51" (1/1) ... [2023-11-06 22:05:51,902 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:05:53,618 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i[199878,199891] [2023-11-06 22:05:53,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:05:53,856 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:05:53,990 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 *)"/work/ldvuser/zakharov_benchmarks/bench/cpa/inst/current/envs/linux-3.8-rc1/linux-3.8-rc1/arch/x86/include/asm/paravirt.h"), "i" (179), "i" (12UL)); [3950-3951] [2023-11-06 22:05:53,992 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" (35UL), [paravirt_opptr] "i" (& pv_cpu_ops.read_tsc), [paravirt_clobber] "i" (511): "memory", "cc", "r8", "r9", "r10", "r11"); [3956-3959] [2023-11-06 22:05:53,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("661:\n\tprefetcht0 (%1)\n662:\n.pushsection .altinstructions,\"a\"\n .long 661b - .\n .long 6631f - .\n .word (1*32+31)\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\tprefetchw (%1)\n6641:\n\t.popsection": : "i" (0), "r" (x)); [3967-3968] [2023-11-06 22:05:53,994 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [3988] [2023-11-06 22:05:53,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2,%0; sete %1": "+m" (v->counter), "=qm" (c): "ir" (i): "memory"); [3995-3996] [2023-11-06 22:05:53,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [4003] [2023-11-06 22:05:54,054 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)front) [4600] [2023-11-06 22:05:54,055 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)back) [4601] [2023-11-06 22:05:54,196 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 *)"/work/ldvuser/zakharov_benchmarks/bench/cpa/work/current--X--drivers/video/udlfb.ko--X--x1linux-3.8-rc1--X--32_7a--X--cpachecker/linux-3.8-rc1/csd_deg_dscv/12/dscv_tempdir/dscv/ri/32_7a/drivers/video/udlfb.c.prepared"), "i" (1990), "i" (12UL)); [6381-6382] [2023-11-06 22:05:54,198 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 *)"/work/ldvuser/zakharov_benchmarks/bench/cpa/work/current--X--drivers/video/udlfb.ko--X--x1linux-3.8-rc1--X--32_7a--X--cpachecker/linux-3.8-rc1/csd_deg_dscv/12/dscv_tempdir/dscv/ri/32_7a/drivers/video/udlfb.c.prepared"), "i" (2008), "i" (12UL)); [6404-6405] [2023-11-06 22:05:54,209 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i[199878,199891] [2023-11-06 22:05:54,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:05:54,415 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:05:54,423 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:05:54,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54 WrapperNode [2023-11-06 22:05:54,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:05:54,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:05:54,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:05:54,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:05:54,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,702 INFO L138 Inliner]: procedures = 257, calls = 1528, calls flagged for inlining = 110, calls inlined = 100, statements flattened = 3886 [2023-11-06 22:05:54,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:05:54,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:05:54,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:05:54,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:05:54,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:05:54,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:05:54,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:05:54,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:05:54,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (1/1) ... [2023-11-06 22:05:54,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:05:54,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:05:54,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:05:55,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62075f5d-efa2-4545-850a-395b63577bea/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:05:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-06 22:05:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-06 22:05:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_fillrect [2023-11-06 22:05:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_fillrect [2023-11-06 22:05:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-06 22:05:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-06 22:05:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2023-11-06 22:05:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2023-11-06 22:05:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2023-11-06 22:05:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2023-11-06 22:05:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:05:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:05:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_mmap [2023-11-06 22:05:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_mmap [2023-11-06 22:05:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2023-11-06 22:05:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2023-11-06 22:05:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2023-11-06 22:05:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2023-11-06 22:05:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 22:05:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 22:05:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2023-11-06 22:05:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2023-11-06 22:05:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2023-11-06 22:05:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2023-11-06 22:05:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2023-11-06 22:05:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2023-11-06 22:05:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2023-11-06 22:05:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2023-11-06 22:05:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-06 22:05:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-06 22:05:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-06 22:05:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-06 22:05:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_setcolreg [2023-11-06 22:05:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_setcolreg [2023-11-06 22:05:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 22:05:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 22:05:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-06 22:05:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-06 22:05:55,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:05:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:05:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2023-11-06 22:05:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2023-11-06 22:05:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2023-11-06 22:05:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2023-11-06 22:05:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2023-11-06 22:05:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2023-11-06 22:05:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-06 22:05:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-06 22:05:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-06 22:05:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-06 22:05:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2023-11-06 22:05:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2023-11-06 22:05:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:05:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-06 22:05:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-06 22:05:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 22:05:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2023-11-06 22:05:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2023-11-06 22:05:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-11-06 22:05:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-11-06 22:05:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:05:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_copyarea [2023-11-06 22:05:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_copyarea [2023-11-06 22:05:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 22:05:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 22:05:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2023-11-06 22:05:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2023-11-06 22:05:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:05:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2023-11-06 22:05:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2023-11-06 22:05:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:05:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-06 22:05:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-06 22:05:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2023-11-06 22:05:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2023-11-06 22:05:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 22:05:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 22:05:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-06 22:05:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-06 22:05:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-06 22:05:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-06 22:05:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-06 22:05:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-06 22:05:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2023-11-06 22:05:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2023-11-06 22:05:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-06 22:05:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-06 22:05:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-06 22:05:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-06 22:05:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 22:05:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-06 22:05:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-06 22:05:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2023-11-06 22:05:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2023-11-06 22:05:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-06 22:05:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-06 22:05:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:05:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-06 22:05:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-06 22:05:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:05:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_ioctl [2023-11-06 22:05:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_ioctl [2023-11-06 22:05:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2023-11-06 22:05:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2023-11-06 22:05:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-06 22:05:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-06 22:05:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2023-11-06 22:05:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2023-11-06 22:05:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-06 22:05:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-06 22:05:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-06 22:05:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-06 22:05:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-06 22:05:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-06 22:05:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-06 22:05:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-06 22:05:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2023-11-06 22:05:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2023-11-06 22:05:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:05:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2023-11-06 22:05:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2023-11-06 22:05:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2023-11-06 22:05:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2023-11-06 22:05:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-06 22:05:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-06 22:05:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 22:05:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 22:05:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:05:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2023-11-06 22:05:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2023-11-06 22:05:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2023-11-06 22:05:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2023-11-06 22:05:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:05:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_imageblit [2023-11-06 22:05:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_imageblit [2023-11-06 22:05:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:05:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 22:05:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 22:05:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_open [2023-11-06 22:05:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_open [2023-11-06 22:05:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2023-11-06 22:05:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2023-11-06 22:05:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-06 22:05:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-06 22:05:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-06 22:05:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-06 22:05:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-06 22:05:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-06 22:05:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-06 22:05:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-06 22:05:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2023-11-06 22:05:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2023-11-06 22:05:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-06 22:05:55,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-06 22:05:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-06 22:05:55,129 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-06 22:05:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2023-11-06 22:05:55,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2023-11-06 22:05:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-06 22:05:55,130 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-06 22:05:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:05:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-06 22:05:55,130 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-06 22:05:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:05:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:05:55,891 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:05:55,897 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:06:05,504 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:06:05,527 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:06:05,527 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:06:05,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:05 BoogieIcfgContainer [2023-11-06 22:06:05,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:06:05,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:06:05,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:06:05,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:06:05,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:05:51" (1/3) ... [2023-11-06 22:06:05,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520d15c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:05, skipping insertion in model container [2023-11-06 22:06:05,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:54" (2/3) ... [2023-11-06 22:06:05,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520d15c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:05, skipping insertion in model container [2023-11-06 22:06:05,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:05" (3/3) ... [2023-11-06 22:06:05,542 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i [2023-11-06 22:06:05,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:06:05,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:06:05,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:06:05,654 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@ad9f854, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:06:05,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:06:05,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 1264 states, 906 states have (on average 1.335540838852097) internal successors, (1210), 928 states have internal predecessors, (1210), 282 states have call successors, (282), 74 states have call predecessors, (282), 74 states have return successors, (282), 278 states have call predecessors, (282), 282 states have call successors, (282) [2023-11-06 22:06:05,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-06 22:06:05,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:05,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:05,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:05,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:05,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1417750124, now seen corresponding path program 1 times [2023-11-06 22:06:05,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:05,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487420879] [2023-11-06 22:06:05,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:05,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:06,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:06,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:06,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487420879] [2023-11-06 22:06:06,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487420879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:06,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:06,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:06,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961282148] [2023-11-06 22:06:06,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:06,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:06,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:06,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:06,382 INFO L87 Difference]: Start difference. First operand has 1264 states, 906 states have (on average 1.335540838852097) internal successors, (1210), 928 states have internal predecessors, (1210), 282 states have call successors, (282), 74 states have call predecessors, (282), 74 states have return successors, (282), 278 states have call predecessors, (282), 282 states have call successors, (282) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:06,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:06,768 INFO L93 Difference]: Finished difference Result 3760 states and 5360 transitions. [2023-11-06 22:06:06,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:06,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-06 22:06:06,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:06,818 INFO L225 Difference]: With dead ends: 3760 [2023-11-06 22:06:06,819 INFO L226 Difference]: Without dead ends: 2489 [2023-11-06 22:06:06,835 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 [2023-11-06 22:06:06,838 INFO L413 NwaCegarLoop]: 1760 mSDtfsCounter, 1725 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 3505 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:06,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 3505 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:06:06,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2023-11-06 22:06:07,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2485. [2023-11-06 22:06:07,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 1781 states have (on average 1.325659741718136) internal successors, (2361), 1815 states have internal predecessors, (2361), 557 states have call successors, (557), 147 states have call predecessors, (557), 146 states have return successors, (550), 542 states have call predecessors, (550), 550 states have call successors, (550) [2023-11-06 22:06:07,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 3468 transitions. [2023-11-06 22:06:07,159 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 3468 transitions. Word has length 16 [2023-11-06 22:06:07,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:07,160 INFO L495 AbstractCegarLoop]: Abstraction has 2485 states and 3468 transitions. [2023-11-06 22:06:07,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 3468 transitions. [2023-11-06 22:06:07,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:06:07,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:07,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:07,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:06:07,170 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:07,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:07,172 INFO L85 PathProgramCache]: Analyzing trace with hash 512391876, now seen corresponding path program 1 times [2023-11-06 22:06:07,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:07,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847469286] [2023-11-06 22:06:07,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:07,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:07,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:07,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847469286] [2023-11-06 22:06:07,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847469286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:07,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:07,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:07,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633789178] [2023-11-06 22:06:07,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:07,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:07,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:07,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:07,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:07,392 INFO L87 Difference]: Start difference. First operand 2485 states and 3468 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:07,580 INFO L93 Difference]: Finished difference Result 2511 states and 3500 transitions. [2023-11-06 22:06:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-06 22:06:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:07,602 INFO L225 Difference]: With dead ends: 2511 [2023-11-06 22:06:07,602 INFO L226 Difference]: Without dead ends: 2498 [2023-11-06 22:06:07,605 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 [2023-11-06 22:06:07,607 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 1745 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1745 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:07,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1745 Valid, 1781 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:07,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2023-11-06 22:06:07,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2485. [2023-11-06 22:06:07,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 1781 states have (on average 1.3250982594048288) internal successors, (2360), 1815 states have internal predecessors, (2360), 557 states have call successors, (557), 147 states have call predecessors, (557), 146 states have return successors, (550), 542 states have call predecessors, (550), 550 states have call successors, (550) [2023-11-06 22:06:07,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 3467 transitions. [2023-11-06 22:06:07,820 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 3467 transitions. Word has length 19 [2023-11-06 22:06:07,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:07,821 INFO L495 AbstractCegarLoop]: Abstraction has 2485 states and 3467 transitions. [2023-11-06 22:06:07,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:07,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 3467 transitions. [2023-11-06 22:06:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:06:07,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:07,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:07,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:06:07,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:07,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:07,889 INFO L85 PathProgramCache]: Analyzing trace with hash 569650178, now seen corresponding path program 1 times [2023-11-06 22:06:07,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:07,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591525462] [2023-11-06 22:06:07,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:07,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:08,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591525462] [2023-11-06 22:06:08,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591525462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:08,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:08,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:08,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686478400] [2023-11-06 22:06:08,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:08,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:08,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:08,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:08,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:08,085 INFO L87 Difference]: Start difference. First operand 2485 states and 3467 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:08,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:08,275 INFO L93 Difference]: Finished difference Result 2487 states and 3468 transitions. [2023-11-06 22:06:08,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:08,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-06 22:06:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:08,297 INFO L225 Difference]: With dead ends: 2487 [2023-11-06 22:06:08,298 INFO L226 Difference]: Without dead ends: 2484 [2023-11-06 22:06:08,302 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 [2023-11-06 22:06:08,308 INFO L413 NwaCegarLoop]: 1747 mSDtfsCounter, 1732 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:08,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 1747 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:08,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2023-11-06 22:06:08,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2484. [2023-11-06 22:06:08,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 1781 states have (on average 1.3245367770915215) internal successors, (2359), 1814 states have internal predecessors, (2359), 556 states have call successors, (556), 147 states have call predecessors, (556), 146 states have return successors, (550), 542 states have call predecessors, (550), 550 states have call successors, (550) [2023-11-06 22:06:08,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3465 transitions. [2023-11-06 22:06:08,559 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3465 transitions. Word has length 19 [2023-11-06 22:06:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:08,561 INFO L495 AbstractCegarLoop]: Abstraction has 2484 states and 3465 transitions. [2023-11-06 22:06:08,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3465 transitions. [2023-11-06 22:06:08,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-06 22:06:08,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:08,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:08,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:06:08,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:08,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash 478734133, now seen corresponding path program 1 times [2023-11-06 22:06:08,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:08,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736484312] [2023-11-06 22:06:08,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:08,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:08,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:08,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:08,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736484312] [2023-11-06 22:06:08,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736484312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:08,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:08,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:08,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670579092] [2023-11-06 22:06:08,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:08,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:08,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:08,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:08,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:08,785 INFO L87 Difference]: Start difference. First operand 2484 states and 3465 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:09,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:09,044 INFO L93 Difference]: Finished difference Result 2486 states and 3466 transitions. [2023-11-06 22:06:09,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:09,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-06 22:06:09,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:09,065 INFO L225 Difference]: With dead ends: 2486 [2023-11-06 22:06:09,065 INFO L226 Difference]: Without dead ends: 2483 [2023-11-06 22:06:09,068 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 [2023-11-06 22:06:09,075 INFO L413 NwaCegarLoop]: 1745 mSDtfsCounter, 1729 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:09,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1745 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:09,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2023-11-06 22:06:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 2483. [2023-11-06 22:06:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 1781 states have (on average 1.3239752947782144) internal successors, (2358), 1813 states have internal predecessors, (2358), 555 states have call successors, (555), 147 states have call predecessors, (555), 146 states have return successors, (550), 542 states have call predecessors, (550), 550 states have call successors, (550) [2023-11-06 22:06:09,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3463 transitions. [2023-11-06 22:06:09,322 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3463 transitions. Word has length 20 [2023-11-06 22:06:09,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:09,323 INFO L495 AbstractCegarLoop]: Abstraction has 2483 states and 3463 transitions. [2023-11-06 22:06:09,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:09,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3463 transitions. [2023-11-06 22:06:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-06 22:06:09,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:09,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:09,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:06:09,325 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:09,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:09,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1955308901, now seen corresponding path program 1 times [2023-11-06 22:06:09,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:09,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797677973] [2023-11-06 22:06:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:09,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:09,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:09,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797677973] [2023-11-06 22:06:09,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797677973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:09,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:09,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:09,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40474823] [2023-11-06 22:06:09,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:09,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:09,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:09,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:09,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:09,506 INFO L87 Difference]: Start difference. First operand 2483 states and 3463 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:09,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:09,909 INFO L93 Difference]: Finished difference Result 7407 states and 10480 transitions. [2023-11-06 22:06:09,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:09,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-06 22:06:09,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:09,954 INFO L225 Difference]: With dead ends: 7407 [2023-11-06 22:06:09,955 INFO L226 Difference]: Without dead ends: 4927 [2023-11-06 22:06:09,970 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 [2023-11-06 22:06:09,970 INFO L413 NwaCegarLoop]: 1993 mSDtfsCounter, 1732 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 3732 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:09,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 3732 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:09,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2023-11-06 22:06:10,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4921. [2023-11-06 22:06:10,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4921 states, 3534 states have (on average 1.3248443689869835) internal successors, (4682), 3594 states have internal predecessors, (4682), 1100 states have call successors, (1100), 288 states have call predecessors, (1100), 286 states have return successors, (1162), 1078 states have call predecessors, (1162), 1094 states have call successors, (1162) [2023-11-06 22:06:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4921 states to 4921 states and 6944 transitions. [2023-11-06 22:06:10,437 INFO L78 Accepts]: Start accepts. Automaton has 4921 states and 6944 transitions. Word has length 21 [2023-11-06 22:06:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:10,438 INFO L495 AbstractCegarLoop]: Abstraction has 4921 states and 6944 transitions. [2023-11-06 22:06:10,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 4921 states and 6944 transitions. [2023-11-06 22:06:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 22:06:10,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:10,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:10,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:06:10,442 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:10,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:10,443 INFO L85 PathProgramCache]: Analyzing trace with hash 484491320, now seen corresponding path program 1 times [2023-11-06 22:06:10,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:10,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733984143] [2023-11-06 22:06:10,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:10,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:10,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:10,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733984143] [2023-11-06 22:06:10,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733984143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:10,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:10,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:10,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877058674] [2023-11-06 22:06:10,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:10,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:10,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:10,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:10,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:10,624 INFO L87 Difference]: Start difference. First operand 4921 states and 6944 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:11,005 INFO L93 Difference]: Finished difference Result 4923 states and 6945 transitions. [2023-11-06 22:06:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:11,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-06 22:06:11,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:11,047 INFO L225 Difference]: With dead ends: 4923 [2023-11-06 22:06:11,047 INFO L226 Difference]: Without dead ends: 4920 [2023-11-06 22:06:11,051 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 [2023-11-06 22:06:11,052 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 1725 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:11,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 1743 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:11,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4920 states. [2023-11-06 22:06:11,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4920 to 4920. [2023-11-06 22:06:11,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4920 states, 3534 states have (on average 1.3245614035087718) internal successors, (4681), 3593 states have internal predecessors, (4681), 1099 states have call successors, (1099), 288 states have call predecessors, (1099), 286 states have return successors, (1162), 1078 states have call predecessors, (1162), 1094 states have call successors, (1162) [2023-11-06 22:06:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4920 states to 4920 states and 6942 transitions. [2023-11-06 22:06:11,615 INFO L78 Accepts]: Start accepts. Automaton has 4920 states and 6942 transitions. Word has length 22 [2023-11-06 22:06:11,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:11,616 INFO L495 AbstractCegarLoop]: Abstraction has 4920 states and 6942 transitions. [2023-11-06 22:06:11,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:11,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4920 states and 6942 transitions. [2023-11-06 22:06:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:06:11,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:11,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:11,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:06:11,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:11,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2133791432, now seen corresponding path program 1 times [2023-11-06 22:06:11,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:11,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987043780] [2023-11-06 22:06:11,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:11,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:11,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:06:11,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:11,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987043780] [2023-11-06 22:06:11,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987043780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:11,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:11,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:11,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453994159] [2023-11-06 22:06:11,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:11,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:11,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:11,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:11,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:11,765 INFO L87 Difference]: Start difference. First operand 4920 states and 6942 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:12,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:12,195 INFO L93 Difference]: Finished difference Result 4922 states and 6943 transitions. [2023-11-06 22:06:12,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:12,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-11-06 22:06:12,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:12,232 INFO L225 Difference]: With dead ends: 4922 [2023-11-06 22:06:12,232 INFO L226 Difference]: Without dead ends: 4910 [2023-11-06 22:06:12,235 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 [2023-11-06 22:06:12,236 INFO L413 NwaCegarLoop]: 1742 mSDtfsCounter, 1722 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:12,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 1742 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:06:12,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4910 states. [2023-11-06 22:06:12,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4910 to 4910. [2023-11-06 22:06:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4910 states, 3525 states have (on average 1.3245390070921985) internal successors, (4669), 3583 states have internal predecessors, (4669), 1098 states have call successors, (1098), 288 states have call predecessors, (1098), 286 states have return successors, (1162), 1078 states have call predecessors, (1162), 1094 states have call successors, (1162) [2023-11-06 22:06:12,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4910 states to 4910 states and 6929 transitions. [2023-11-06 22:06:12,694 INFO L78 Accepts]: Start accepts. Automaton has 4910 states and 6929 transitions. Word has length 23 [2023-11-06 22:06:12,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:12,694 INFO L495 AbstractCegarLoop]: Abstraction has 4910 states and 6929 transitions. [2023-11-06 22:06:12,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:12,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4910 states and 6929 transitions. [2023-11-06 22:06:12,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-06 22:06:12,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:12,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:12,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:06:12,701 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:12,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:12,701 INFO L85 PathProgramCache]: Analyzing trace with hash -557069101, now seen corresponding path program 1 times [2023-11-06 22:06:12,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:12,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612024471] [2023-11-06 22:06:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:12,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:12,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-06 22:06:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:12,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:06:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:12,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:06:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:12,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:06:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:06:12,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:12,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612024471] [2023-11-06 22:06:12,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612024471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:12,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:12,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:06:12,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488033562] [2023-11-06 22:06:12,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:12,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:12,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:12,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:12,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:12,975 INFO L87 Difference]: Start difference. First operand 4910 states and 6929 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:06:15,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:17,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:19,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:21,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:22,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:27,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:30,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:31,738 INFO L93 Difference]: Finished difference Result 15254 states and 21607 transitions. [2023-11-06 22:06:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:06:31,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2023-11-06 22:06:31,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:31,813 INFO L225 Difference]: With dead ends: 15254 [2023-11-06 22:06:31,813 INFO L226 Difference]: Without dead ends: 10347 [2023-11-06 22:06:31,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:31,843 INFO L413 NwaCegarLoop]: 1687 mSDtfsCounter, 2376 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 738 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:31,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 3860 Invalid, 2210 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [738 Valid, 1467 Invalid, 5 Unknown, 0 Unchecked, 17.6s Time] [2023-11-06 22:06:31,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10347 states. [2023-11-06 22:06:32,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10347 to 10100. [2023-11-06 22:06:32,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10100 states, 7227 states have (on average 1.3121627231216273) internal successors, (9483), 7365 states have internal predecessors, (9483), 2228 states have call successors, (2228), 574 states have call predecessors, (2228), 644 states have return successors, (2588), 2248 states have call predecessors, (2588), 2224 states have call successors, (2588) [2023-11-06 22:06:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10100 states to 10100 states and 14299 transitions. [2023-11-06 22:06:32,908 INFO L78 Accepts]: Start accepts. Automaton has 10100 states and 14299 transitions. Word has length 49 [2023-11-06 22:06:32,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:32,908 INFO L495 AbstractCegarLoop]: Abstraction has 10100 states and 14299 transitions. [2023-11-06 22:06:32,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:06:32,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10100 states and 14299 transitions. [2023-11-06 22:06:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-06 22:06:32,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:32,919 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:32,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:06:32,920 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:32,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:32,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1228392271, now seen corresponding path program 1 times [2023-11-06 22:06:32,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:32,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450994592] [2023-11-06 22:06:32,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:32,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:06:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:06:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:06:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:33,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:06:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:33,230 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:06:33,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:33,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450994592] [2023-11-06 22:06:33,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450994592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:33,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:33,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:06:33,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754476291] [2023-11-06 22:06:33,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:33,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:33,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:33,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:33,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:33,234 INFO L87 Difference]: Start difference. First operand 10100 states and 14299 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:06:35,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:37,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:39,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:41,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:43,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:49,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:53,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:06:54,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:06:54,656 INFO L93 Difference]: Finished difference Result 25566 states and 36243 transitions. [2023-11-06 22:06:54,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:06:54,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 61 [2023-11-06 22:06:54,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:06:54,745 INFO L225 Difference]: With dead ends: 25566 [2023-11-06 22:06:54,745 INFO L226 Difference]: Without dead ends: 15469 [2023-11-06 22:06:54,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:54,798 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 1949 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 432 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 5182 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:06:54,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 5182 Invalid, 2474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [432 Valid, 2035 Invalid, 7 Unknown, 0 Unchecked, 20.1s Time] [2023-11-06 22:06:54,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15469 states. [2023-11-06 22:06:56,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15469 to 15106. [2023-11-06 22:06:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15106 states, 10813 states have (on average 1.3114769259225008) internal successors, (14181), 11019 states have internal predecessors, (14181), 3326 states have call successors, (3326), 860 states have call predecessors, (3326), 966 states have return successors, (3862), 3358 states have call predecessors, (3862), 3322 states have call successors, (3862) [2023-11-06 22:06:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15106 states to 15106 states and 21369 transitions. [2023-11-06 22:06:56,351 INFO L78 Accepts]: Start accepts. Automaton has 15106 states and 21369 transitions. Word has length 61 [2023-11-06 22:06:56,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:06:56,351 INFO L495 AbstractCegarLoop]: Abstraction has 15106 states and 21369 transitions. [2023-11-06 22:06:56,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 22:06:56,352 INFO L276 IsEmpty]: Start isEmpty. Operand 15106 states and 21369 transitions. [2023-11-06 22:06:56,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:06:56,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:06:56,369 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:56,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:06:56,370 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:06:56,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:56,370 INFO L85 PathProgramCache]: Analyzing trace with hash -579797735, now seen corresponding path program 1 times [2023-11-06 22:06:56,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:56,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077945593] [2023-11-06 22:06:56,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:56,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:56,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 22:06:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:56,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:06:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:06:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:06:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:56,695 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-06 22:06:56,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:56,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077945593] [2023-11-06 22:06:56,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077945593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:56,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:56,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:56,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448680094] [2023-11-06 22:06:56,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:56,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:56,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:56,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:56,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:56,699 INFO L87 Difference]: Start difference. First operand 15106 states and 21369 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:06:59,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:01,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:03,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:05,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:10,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:12,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:12,553 INFO L93 Difference]: Finished difference Result 30684 states and 43926 transitions. [2023-11-06 22:07:12,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:07:12,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 73 [2023-11-06 22:07:12,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:12,629 INFO L225 Difference]: With dead ends: 30684 [2023-11-06 22:07:12,629 INFO L226 Difference]: Without dead ends: 15581 [2023-11-06 22:07:12,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:12,685 INFO L413 NwaCegarLoop]: 1286 mSDtfsCounter, 541 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 235 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 4392 SdHoareTripleChecker+Invalid, 2164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:12,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 4392 Invalid, 2164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1924 Invalid, 5 Unknown, 0 Unchecked, 14.6s Time] [2023-11-06 22:07:12,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15581 states. [2023-11-06 22:07:14,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15581 to 15142. [2023-11-06 22:07:14,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15142 states, 10849 states have (on average 1.3104433588349156) internal successors, (14217), 11055 states have internal predecessors, (14217), 3326 states have call successors, (3326), 860 states have call predecessors, (3326), 966 states have return successors, (3862), 3358 states have call predecessors, (3862), 3322 states have call successors, (3862) [2023-11-06 22:07:14,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15142 states to 15142 states and 21405 transitions. [2023-11-06 22:07:14,162 INFO L78 Accepts]: Start accepts. Automaton has 15142 states and 21405 transitions. Word has length 73 [2023-11-06 22:07:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:14,163 INFO L495 AbstractCegarLoop]: Abstraction has 15142 states and 21405 transitions. [2023-11-06 22:07:14,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:07:14,164 INFO L276 IsEmpty]: Start isEmpty. Operand 15142 states and 21405 transitions. [2023-11-06 22:07:14,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:07:14,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:14,180 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:14,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:07:14,180 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:14,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:14,181 INFO L85 PathProgramCache]: Analyzing trace with hash 100260635, now seen corresponding path program 1 times [2023-11-06 22:07:14,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:14,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703820024] [2023-11-06 22:07:14,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:14,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 22:07:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:14,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:07:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:14,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:07:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:07:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-06 22:07:14,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:14,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703820024] [2023-11-06 22:07:14,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703820024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:14,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:14,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:14,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232648037] [2023-11-06 22:07:14,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:14,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:14,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:14,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:14,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:14,742 INFO L87 Difference]: Start difference. First operand 15142 states and 21405 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-06 22:07:17,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:19,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:21,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:27,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:27,822 INFO L93 Difference]: Finished difference Result 30593 states and 43283 transitions. [2023-11-06 22:07:27,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:07:27,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 73 [2023-11-06 22:07:27,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:27,902 INFO L225 Difference]: With dead ends: 30593 [2023-11-06 22:07:27,902 INFO L226 Difference]: Without dead ends: 15454 [2023-11-06 22:07:27,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:07:27,944 INFO L413 NwaCegarLoop]: 1243 mSDtfsCounter, 1920 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 597 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:27,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 3128 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 1324 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2023-11-06 22:07:27,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15454 states. [2023-11-06 22:07:29,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15454 to 15106. [2023-11-06 22:07:29,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15106 states, 10825 states have (on average 1.3096535796766744) internal successors, (14177), 11031 states have internal predecessors, (14177), 3314 states have call successors, (3314), 860 states have call predecessors, (3314), 966 states have return successors, (3846), 3346 states have call predecessors, (3846), 3310 states have call successors, (3846) [2023-11-06 22:07:29,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15106 states to 15106 states and 21337 transitions. [2023-11-06 22:07:29,463 INFO L78 Accepts]: Start accepts. Automaton has 15106 states and 21337 transitions. Word has length 73 [2023-11-06 22:07:29,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:29,463 INFO L495 AbstractCegarLoop]: Abstraction has 15106 states and 21337 transitions. [2023-11-06 22:07:29,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-06 22:07:29,464 INFO L276 IsEmpty]: Start isEmpty. Operand 15106 states and 21337 transitions. [2023-11-06 22:07:29,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-06 22:07:29,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:29,495 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:29,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:07:29,495 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:29,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:29,496 INFO L85 PathProgramCache]: Analyzing trace with hash -2090681879, now seen corresponding path program 1 times [2023-11-06 22:07:29,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:29,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796448611] [2023-11-06 22:07:29,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:29,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 22:07:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:07:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-06 22:07:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:07:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:07:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:07:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-06 22:07:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 22:07:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-06 22:07:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-06 22:07:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:07:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:29,863 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:07:29,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:29,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796448611] [2023-11-06 22:07:29,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796448611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:29,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:29,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:29,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070794730] [2023-11-06 22:07:29,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:29,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:29,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:29,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:29,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:29,866 INFO L87 Difference]: Start difference. First operand 15106 states and 21337 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:07:32,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:34,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:36,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:38,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:45,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:48,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:50,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:52,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:07:58,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:00,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:02,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:04,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:06,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:06,038 INFO L93 Difference]: Finished difference Result 46116 states and 65501 transitions. [2023-11-06 22:08:06,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:08:06,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 115 [2023-11-06 22:08:06,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:06,176 INFO L225 Difference]: With dead ends: 46116 [2023-11-06 22:08:06,176 INFO L226 Difference]: Without dead ends: 31013 [2023-11-06 22:08:06,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:08:06,227 INFO L413 NwaCegarLoop]: 1387 mSDtfsCounter, 2666 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 1373 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1373 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:08:06,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 4027 Invalid, 4087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1373 Valid, 2704 Invalid, 10 Unknown, 0 Unchecked, 33.5s Time] [2023-11-06 22:08:06,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31013 states. [2023-11-06 22:08:08,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31013 to 27636. [2023-11-06 22:08:08,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27636 states, 19547 states have (on average 1.2834194505550724) internal successors, (25087), 19993 states have internal predecessors, (25087), 6036 states have call successors, (6036), 1586 states have call predecessors, (6036), 2052 states have return successors, (7752), 6320 states have call predecessors, (7752), 6032 states have call successors, (7752) [2023-11-06 22:08:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27636 states to 27636 states and 38875 transitions. [2023-11-06 22:08:08,896 INFO L78 Accepts]: Start accepts. Automaton has 27636 states and 38875 transitions. Word has length 115 [2023-11-06 22:08:08,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:08,896 INFO L495 AbstractCegarLoop]: Abstraction has 27636 states and 38875 transitions. [2023-11-06 22:08:08,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:08:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand 27636 states and 38875 transitions. [2023-11-06 22:08:08,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-06 22:08:08,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:08,945 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:08:08,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:08:08,945 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:08,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:08,946 INFO L85 PathProgramCache]: Analyzing trace with hash 489212254, now seen corresponding path program 1 times [2023-11-06 22:08:08,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:08,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379504570] [2023-11-06 22:08:08,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:08:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 22:08:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:08:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:08:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:08:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:08:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:08:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-06 22:08:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-06 22:08:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-06 22:08:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-06 22:08:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 22:08:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-06 22:08:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:08:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-06 22:08:09,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:09,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379504570] [2023-11-06 22:08:09,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379504570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:09,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:09,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:08:09,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968503624] [2023-11-06 22:08:09,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:09,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:08:09,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:09,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:08:09,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:08:09,257 INFO L87 Difference]: Start difference. First operand 27636 states and 38875 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:08:12,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:13,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:15,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:16,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:19,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:21,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:23,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:41,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:43,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:44,883 INFO L93 Difference]: Finished difference Result 74814 states and 105985 transitions. [2023-11-06 22:08:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:08:44,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2023-11-06 22:08:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:45,120 INFO L225 Difference]: With dead ends: 74814 [2023-11-06 22:08:45,121 INFO L226 Difference]: Without dead ends: 47181 [2023-11-06 22:08:45,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:08:45,224 INFO L413 NwaCegarLoop]: 2061 mSDtfsCounter, 2429 mSDsluCounter, 3400 mSDsCounter, 0 mSdLazyCounter, 3357 mSolverCounterSat, 1006 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2643 SdHoareTripleChecker+Valid, 5461 SdHoareTripleChecker+Invalid, 4369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1006 IncrementalHoareTripleChecker+Valid, 3357 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:08:45,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2643 Valid, 5461 Invalid, 4369 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1006 Valid, 3357 Invalid, 6 Unknown, 0 Unchecked, 31.6s Time] [2023-11-06 22:08:45,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47181 states. [2023-11-06 22:08:49,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47181 to 41856. [2023-11-06 22:08:49,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41856 states, 29839 states have (on average 1.2927041790944738) internal successors, (38573), 30477 states have internal predecessors, (38573), 8862 states have call successors, (8862), 2448 states have call predecessors, (8862), 3154 states have return successors, (11366), 9302 states have call predecessors, (11366), 8858 states have call successors, (11366) [2023-11-06 22:08:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41856 states to 41856 states and 58801 transitions. [2023-11-06 22:08:49,416 INFO L78 Accepts]: Start accepts. Automaton has 41856 states and 58801 transitions. Word has length 119 [2023-11-06 22:08:49,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:49,416 INFO L495 AbstractCegarLoop]: Abstraction has 41856 states and 58801 transitions. [2023-11-06 22:08:49,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:08:49,417 INFO L276 IsEmpty]: Start isEmpty. Operand 41856 states and 58801 transitions. [2023-11-06 22:08:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 22:08:49,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:49,504 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:08:49,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:08:49,505 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:49,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:49,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1952438939, now seen corresponding path program 1 times [2023-11-06 22:08:49,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:08:49,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531797231] [2023-11-06 22:08:49,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:49,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:08:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:08:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 22:08:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-06 22:08:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-06 22:08:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:08:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:08:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:08:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-06 22:08:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 22:08:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 22:08:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:08:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 22:08:49,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:08:49,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531797231] [2023-11-06 22:08:49,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531797231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:49,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:49,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:08:49,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653894443] [2023-11-06 22:08:49,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:49,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:08:49,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:08:49,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:08:49,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:08:49,818 INFO L87 Difference]: Start difference. First operand 41856 states and 58801 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:08:52,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:53,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:55,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:58,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:09:00,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:09:19,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:09:21,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:09:23,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:09:25,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:09:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:09:28,445 INFO L93 Difference]: Finished difference Result 120624 states and 170528 transitions. [2023-11-06 22:09:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:09:28,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 127 [2023-11-06 22:09:28,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:09:28,723 INFO L225 Difference]: With dead ends: 120624 [2023-11-06 22:09:28,723 INFO L226 Difference]: Without dead ends: 78771 [2023-11-06 22:09:28,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:09:28,817 INFO L413 NwaCegarLoop]: 1742 mSDtfsCounter, 3078 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 2863 mSolverCounterSat, 1396 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 4577 SdHoareTripleChecker+Invalid, 4266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1396 IncrementalHoareTripleChecker+Valid, 2863 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:09:28,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3336 Valid, 4577 Invalid, 4266 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1396 Valid, 2863 Invalid, 7 Unknown, 0 Unchecked, 32.2s Time] [2023-11-06 22:09:28,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78771 states.