./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f51fd7a7e803b337407ebecb084bc416ae9c8b7a3d33ff72a0e0702d21471e83 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:29,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:29,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:33:29,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:29,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:29,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:29,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:29,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:29,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:29,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:29,735 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:29,737 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:29,737 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:29,740 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:29,741 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:29,741 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:29,742 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:29,743 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:29,744 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:29,744 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:29,745 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:29,746 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:29,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:29,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:29,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:29,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:29,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:29,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:29,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:29,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:29,754 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:29,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:29,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:29,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:29,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:29,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:29,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:29,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:29,758 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:29,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:29,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:29,760 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:29,760 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:29,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:29,761 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f51fd7a7e803b337407ebecb084bc416ae9c8b7a3d33ff72a0e0702d21471e83 [2023-11-23 20:33:30,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:30,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:30,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:30,190 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:30,191 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:30,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2023-11-23 20:33:34,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:34,992 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:34,993 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2023-11-23 20:33:35,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/data/1ef183981/9d4f9de3702449abb74ffa5a03f71144/FLAG0db715b1d [2023-11-23 20:33:35,082 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/data/1ef183981/9d4f9de3702449abb74ffa5a03f71144 [2023-11-23 20:33:35,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:35,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:35,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:35,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:35,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:35,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:35" (1/1) ... [2023-11-23 20:33:35,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45806e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:35, skipping insertion in model container [2023-11-23 20:33:35,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:35" (1/1) ... [2023-11-23 20:33:35,306 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:37,583 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_e885a388-3632-4a74-9362-0f9ef8474720/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i[221005,221018] [2023-11-23 20:33:37,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:37,680 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:37,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4501] [2023-11-23 20:33:37,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4508] [2023-11-23 20:33:37,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4515-4516] [2023-11-23 20:33:37,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4523-4524] [2023-11-23 20:33:37,802 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 *)"/anthill/stuff/tacas-comp/inst/current/envs/linux-3.0.1/linux-3.0.1/arch/x86/include/asm/paravirt.h"), "i" (853), "i" (12UL)); [4560-4561] [2023-11-23 20:33:37,803 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [4566-4568] [2023-11-23 20:33:37,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [4616] [2023-11-23 20:33:37,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [4623] [2023-11-23 20:33:37,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4630] [2023-11-23 20:33:37,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [4637] [2023-11-23 20:33:37,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [4644] [2023-11-23 20:33:37,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4651] [2023-11-23 20:33:37,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4692] [2023-11-23 20:33:37,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4699] [2023-11-23 20:33:37,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [4706] [2023-11-23 20:33:37,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4713] [2023-11-23 20:33:37,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4720] [2023-11-23 20:33:38,209 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_e885a388-3632-4a74-9362-0f9ef8474720/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i[221005,221018] [2023-11-23 20:33:38,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:38,586 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:38,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38 WrapperNode [2023-11-23 20:33:38,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:38,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:38,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:38,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:38,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,945 INFO L138 Inliner]: procedures = 200, calls = 1539, calls flagged for inlining = 99, calls inlined = 85, statements flattened = 3550 [2023-11-23 20:33:38,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:38,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:38,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:38,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:38,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,235 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,291 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:39,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:39,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:39,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:39,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:39,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:39,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:39,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:33:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:33:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 20:33:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 20:33:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 20:33:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 20:33:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 20:33:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 20:33:39,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:33:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:33:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-23 20:33:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-23 20:33:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 20:33:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 20:33:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-23 20:33:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-23 20:33:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-23 20:33:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-23 20:33:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-23 20:33:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-23 20:33:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-23 20:33:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-23 20:33:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 20:33:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 20:33:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 20:33:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 20:33:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:33:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:33:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:33:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:33:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-23 20:33:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-23 20:33:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-11-23 20:33:39,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-11-23 20:33:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:33:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:33:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-23 20:33:39,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-23 20:33:39,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:33:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 20:33:39,464 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 20:33:39,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:33:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 20:33:39,465 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 20:33:39,465 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:33:39,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:33:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 20:33:39,466 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 20:33:39,466 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-23 20:33:39,467 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-23 20:33:39,467 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 20:33:39,467 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 20:33:39,467 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2023-11-23 20:33:39,468 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2023-11-23 20:33:39,468 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 20:33:39,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 20:33:39,469 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-23 20:33:39,469 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-23 20:33:39,469 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2023-11-23 20:33:39,469 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2023-11-23 20:33:39,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:33:39,470 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 20:33:39,470 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 20:33:39,471 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:33:39,471 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:33:39,471 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 20:33:39,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 20:33:39,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:33:39,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:33:39,472 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 20:33:39,472 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 20:33:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2023-11-23 20:33:39,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2023-11-23 20:33:39,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:33:39,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:33:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2023-11-23 20:33:39,474 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2023-11-23 20:33:39,474 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:33:39,474 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:33:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:33:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 20:33:39,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 20:33:39,475 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 20:33:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 20:33:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2023-11-23 20:33:39,476 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2023-11-23 20:33:39,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:33:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 20:33:39,477 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 20:33:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:39,477 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2023-11-23 20:33:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2023-11-23 20:33:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:33:39,478 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-23 20:33:39,478 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-23 20:33:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2023-11-23 20:33:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2023-11-23 20:33:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2023-11-23 20:33:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2023-11-23 20:33:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:33:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:33:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 20:33:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 20:33:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-23 20:33:39,481 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-23 20:33:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2023-11-23 20:33:39,481 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2023-11-23 20:33:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 20:33:39,482 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 20:33:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 20:33:39,482 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 20:33:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 20:33:39,483 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 20:33:39,483 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-23 20:33:39,483 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-23 20:33:39,483 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2023-11-23 20:33:39,484 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2023-11-23 20:33:39,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:39,484 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-23 20:33:39,484 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-23 20:33:39,485 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-23 20:33:39,485 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-23 20:33:39,485 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-23 20:33:39,486 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-23 20:33:39,486 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-23 20:33:39,486 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-23 20:33:39,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:39,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:39,487 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 20:33:39,487 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 20:33:40,179 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:40,183 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:41,379 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 20:33:41,388 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 20:33:41,400 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 20:33:41,401 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 20:33:41,404 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 20:33:41,405 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 20:33:41,418 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 20:33:43,907 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##268: assume !false; [2023-11-23 20:33:43,914 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##267: assume false; [2023-11-23 20:33:43,915 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2023-11-23 20:33:43,915 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2023-11-23 20:33:43,915 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##313: assume !false; [2023-11-23 20:33:43,916 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##312: assume false; [2023-11-23 20:33:43,916 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##319: assume !false; [2023-11-23 20:33:43,916 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##318: assume false; [2023-11-23 20:33:43,916 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume !false; [2023-11-23 20:33:43,917 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##462: assume false; [2023-11-23 20:33:43,917 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2023-11-23 20:33:43,917 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2023-11-23 20:33:43,917 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume false; [2023-11-23 20:33:43,918 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !false;call ULTIMATE.dealloc(fst_ioctl_~#wrthdr~0#1.base, fst_ioctl_~#wrthdr~0#1.offset);havoc fst_ioctl_~#wrthdr~0#1.base, fst_ioctl_~#wrthdr~0#1.offset;call ULTIMATE.dealloc(fst_ioctl_~#info~0#1.base, fst_ioctl_~#info~0#1.offset);havoc fst_ioctl_~#info~0#1.base, fst_ioctl_~#info~0#1.offset; [2023-11-23 20:33:44,101 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:45,771 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:45,772 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:33:45,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:45 BoogieIcfgContainer [2023-11-23 20:33:45,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:45,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:45,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:45,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:45,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:35" (1/3) ... [2023-11-23 20:33:45,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739c5328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:45, skipping insertion in model container [2023-11-23 20:33:45,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (2/3) ... [2023-11-23 20:33:45,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739c5328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:45, skipping insertion in model container [2023-11-23 20:33:45,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:45" (3/3) ... [2023-11-23 20:33:45,790 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2023-11-23 20:33:45,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:45,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:45,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:45,969 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f9fc1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:45,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:45,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 877 states, 534 states have (on average 1.294007490636704) internal successors, (691), 542 states have internal predecessors, (691), 284 states have call successors, (284), 57 states have call predecessors, (284), 57 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) [2023-11-23 20:33:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:33:45,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:45,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:45,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:46,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:46,010 INFO L85 PathProgramCache]: Analyzing trace with hash 312871845, now seen corresponding path program 1 times [2023-11-23 20:33:46,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:46,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309090074] [2023-11-23 20:33:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:46,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:46,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:46,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309090074] [2023-11-23 20:33:46,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309090074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:46,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:46,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639096110] [2023-11-23 20:33:46,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:46,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:33:46,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:46,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:33:46,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:33:46,871 INFO L87 Difference]: Start difference. First operand has 877 states, 534 states have (on average 1.294007490636704) internal successors, (691), 542 states have internal predecessors, (691), 284 states have call successors, (284), 57 states have call predecessors, (284), 57 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 20:33:48,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:48,581 INFO L93 Difference]: Finished difference Result 1752 states and 2519 transitions. [2023-11-23 20:33:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:33:48,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-23 20:33:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:48,625 INFO L225 Difference]: With dead ends: 1752 [2023-11-23 20:33:48,626 INFO L226 Difference]: Without dead ends: 875 [2023-11-23 20:33:48,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:33:48,645 INFO L413 NwaCegarLoop]: 1114 mSDtfsCounter, 0 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:48,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2227 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 20:33:48,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2023-11-23 20:33:48,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 875. [2023-11-23 20:33:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 534 states have (on average 1.2902621722846441) internal successors, (689), 540 states have internal predecessors, (689), 284 states have call successors, (284), 57 states have call predecessors, (284), 56 states have return successors, (282), 282 states have call predecessors, (282), 282 states have call successors, (282) [2023-11-23 20:33:48,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1255 transitions. [2023-11-23 20:33:48,833 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1255 transitions. Word has length 15 [2023-11-23 20:33:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:48,834 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1255 transitions. [2023-11-23 20:33:48,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 20:33:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1255 transitions. [2023-11-23 20:33:48,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:33:48,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:48,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:48,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:33:48,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:48,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:48,838 INFO L85 PathProgramCache]: Analyzing trace with hash -987618762, now seen corresponding path program 1 times [2023-11-23 20:33:48,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:48,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985950855] [2023-11-23 20:33:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:48,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:49,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:49,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985950855] [2023-11-23 20:33:49,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985950855] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:33:49,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173552661] [2023-11-23 20:33:49,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:49,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:49,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:49,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:49,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:33:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:49,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:33:49,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:33:49,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:49,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173552661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:49,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 20:33:49,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-23 20:33:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764227174] [2023-11-23 20:33:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:49,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:33:49,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:49,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:33:49,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:33:49,987 INFO L87 Difference]: Start difference. First operand 875 states and 1255 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 20:33:52,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:52,376 INFO L93 Difference]: Finished difference Result 2541 states and 3638 transitions. [2023-11-23 20:33:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:33:52,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-23 20:33:52,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:52,393 INFO L225 Difference]: With dead ends: 2541 [2023-11-23 20:33:52,394 INFO L226 Difference]: Without dead ends: 1669 [2023-11-23 20:33:52,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:33:52,400 INFO L413 NwaCegarLoop]: 1256 mSDtfsCounter, 1134 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:52,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 2357 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 20:33:52,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2023-11-23 20:33:52,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1665. [2023-11-23 20:33:52,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1015 states have (on average 1.2886699507389163) internal successors, (1308), 1026 states have internal predecessors, (1308), 537 states have call successors, (537), 113 states have call predecessors, (537), 112 states have return successors, (535), 534 states have call predecessors, (535), 535 states have call successors, (535) [2023-11-23 20:33:52,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2380 transitions. [2023-11-23 20:33:52,643 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2380 transitions. Word has length 16 [2023-11-23 20:33:52,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:52,644 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2380 transitions. [2023-11-23 20:33:52,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 20:33:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2380 transitions. [2023-11-23 20:33:52,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 20:33:52,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:52,648 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:52,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:52,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:52,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:52,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:52,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1546488348, now seen corresponding path program 1 times [2023-11-23 20:33:52,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:52,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366689051] [2023-11-23 20:33:52,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:52,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:53,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:53,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366689051] [2023-11-23 20:33:53,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366689051] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:33:53,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235125580] [2023-11-23 20:33:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:53,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:53,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:53,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:53,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e885a388-3632-4a74-9362-0f9ef8474720/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 20:33:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:53,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:33:53,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:53,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:53,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:33:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:53,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235125580] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:33:53,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [206087768] [2023-11-23 20:33:53,874 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2023-11-23 20:33:53,874 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 20:33:53,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 20:33:53,885 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 20:33:53,885 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 20:34:14,967 INFO L197 IcfgInterpreter]: Interpreting procedure dev_to_hdlc with input of size 108 for LOIs [2023-11-23 20:34:15,021 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 93 for LOIs [2023-11-23 20:34:15,063 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 148 for LOIs [2023-11-23 20:34:15,187 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 103 for LOIs [2023-11-23 20:34:15,237 INFO L180 IcfgInterpreter]: Interpretation finished