./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.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_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:34:01,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:34:01,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-06 20:34:01,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:34:01,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:34:01,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:34:01,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:34:01,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:34:01,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:34:01,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:34:01,864 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:34:01,866 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:34:01,867 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:34:01,870 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:34:01,871 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:34:01,872 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:34:01,873 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:34:01,873 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:34:01,874 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:34:01,875 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:34:01,875 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:34:01,878 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:34:01,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:34:01,879 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 20:34:01,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:34:01,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:34:01,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 20:34:01,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:34:01,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 20:34:01,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 20:34:01,883 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:34:01,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:34:01,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:34:01,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:01,885 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:34:01,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:34:01,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 20:34:01,886 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:34:01,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:34:01,887 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 20:34:01,887 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:34:01,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:34:01,889 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_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2023-11-06 20:34:02,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:34:02,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:34:02,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:34:02,230 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:34:02,231 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:34:02,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2023-11-06 20:34:05,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:34:06,074 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:34:06,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2023-11-06 20:34:06,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/data/1740643ff/5c875bffcbe3448a85f0a80cfa72e4be/FLAG1caabc945 [2023-11-06 20:34:06,128 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/data/1740643ff/5c875bffcbe3448a85f0a80cfa72e4be [2023-11-06 20:34:06,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:34:06,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:34:06,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:06,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:34:06,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:34:06,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:06" (1/1) ... [2023-11-06 20:34:06,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798e1d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:06, skipping insertion in model container [2023-11-06 20:34:06,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:06" (1/1) ... [2023-11-06 20:34:06,333 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:08,230 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_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2023-11-06 20:34:08,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:08,355 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:34:08,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6219-6225] [2023-11-06 20:34:08,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %2,%1\n\t" "sbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6232-6239] [2023-11-06 20:34:08,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6248] [2023-11-06 20:34:08,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/inst/current/envs/linux-3.0.1/linux-3.0.1/arch/x86/include/asm/paravirt.h"), "i" (853), "i" (sizeof(struct bug_entry ))); [6305-6311] [2023-11-06 20:34:08,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("" "771:\n\t" "call *%c[paravirt_opptr];" "\n" "772:\n" ".pushsection .parainstructions,\"a\"\n" " " ".balign 8" " " "\n" " " ".quad" " " " 771b\n" " .byte " "%c[paravirt_typenum]" "\n" " .byte 772b-771b\n" " .short " "%c[paravirt_clobber]" "\n" ".popsection\n" "": "=a" (__eax): [paravirt_typenum] "i" ((unsigned long )((unsigned int )(& ((struct paravirt_patch_template *)0)->pv_irq_ops.save_fl.func)) / sizeof(void *)), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6331-6355] [2023-11-06 20:34:08,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("" "771:\n\t" "call *%c[paravirt_opptr];" "\n" "772:\n" ".pushsection .parainstructions,\"a\"\n" " " ".balign 8" " " "\n" " " ".quad" " " " 771b\n" " .byte " "%c[paravirt_typenum]" "\n" " .byte 772b-771b\n" " .short " "%c[paravirt_clobber]" "\n" ".popsection\n" "": "=a" (__eax): [paravirt_typenum] "i" ((unsigned long )((unsigned int )(& ((struct paravirt_patch_template *)0)->pv_irq_ops.save_fl.func)) / sizeof(void *)), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6358-6382] [2023-11-06 20:34:08,786 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_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2023-11-06 20:34:08,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:08,901 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:34:08,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08 WrapperNode [2023-11-06 20:34:08,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:08,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:08,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:34:08,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:34:08,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,209 INFO L138 Inliner]: procedures = 177, calls = 1697, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 4036 [2023-11-06 20:34:09,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:09,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:34:09,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:34:09,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:34:09,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:34:09,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:34:09,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:34:09,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:34:09,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (1/1) ... [2023-11-06 20:34:09,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:09,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:34:09,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:34:09,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff041ba4-c4f3-4a9b-b13a-0ab6d3af4b0b/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:34:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-06 20:34:09,583 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-06 20:34:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-06 20:34:09,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-06 20:34:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-06 20:34:09,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-06 20:34:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2023-11-06 20:34:09,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2023-11-06 20:34:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 20:34:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-06 20:34:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-06 20:34:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-06 20:34:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-06 20:34:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 20:34:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 20:34:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-06 20:34:09,587 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-06 20:34:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 20:34:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2023-11-06 20:34:09,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2023-11-06 20:34:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-06 20:34:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-06 20:34:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-11-06 20:34:09,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-11-06 20:34:09,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-06 20:34:09,589 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-06 20:34:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-06 20:34:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-06 20:34:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 20:34:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 20:34:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-06 20:34:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-06 20:34:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-06 20:34:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-06 20:34:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-06 20:34:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-06 20:34:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2023-11-06 20:34:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2023-11-06 20:34:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-06 20:34:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-06 20:34:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2023-11-06 20:34:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2023-11-06 20:34:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 20:34:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-06 20:34:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-06 20:34:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2023-11-06 20:34:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2023-11-06 20:34:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-06 20:34:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-06 20:34:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-11-06 20:34:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-11-06 20:34:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2023-11-06 20:34:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2023-11-06 20:34:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2023-11-06 20:34:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2023-11-06 20:34:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2023-11-06 20:34:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2023-11-06 20:34:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-11-06 20:34:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-11-06 20:34:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:34:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-06 20:34:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-06 20:34:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2023-11-06 20:34:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2023-11-06 20:34:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:34:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:34:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:34:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-06 20:34:09,599 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-06 20:34:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-06 20:34:09,599 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-06 20:34:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 20:34:09,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 20:34:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:34:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-06 20:34:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-06 20:34:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 20:34:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 20:34:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-06 20:34:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-06 20:34:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:34:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 20:34:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2023-11-06 20:34:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2023-11-06 20:34:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 20:34:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 20:34:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-06 20:34:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-06 20:34:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-11-06 20:34:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-11-06 20:34:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-06 20:34:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-06 20:34:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-06 20:34:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-06 20:34:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-06 20:34:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-06 20:34:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-06 20:34:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-06 20:34:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2023-11-06 20:34:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2023-11-06 20:34:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-06 20:34:09,605 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-06 20:34:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 20:34:09,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 20:34:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2023-11-06 20:34:09,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2023-11-06 20:34:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-06 20:34:09,606 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-06 20:34:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-11-06 20:34:09,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-11-06 20:34:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2023-11-06 20:34:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2023-11-06 20:34:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-06 20:34:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-06 20:34:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 20:34:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-06 20:34:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-06 20:34:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2023-11-06 20:34:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2023-11-06 20:34:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-06 20:34:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-06 20:34:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2023-11-06 20:34:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2023-11-06 20:34:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 20:34:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:34:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:34:10,313 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:34:10,318 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:34:10,615 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 20:34:10,816 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2023-11-06 20:34:10,816 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2023-11-06 20:34:11,223 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 20:34:12,837 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2023-11-06 20:34:12,837 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2023-11-06 20:34:13,274 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-11-06 20:34:13,297 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 20:34:13,299 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 20:34:16,073 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume !false; [2023-11-06 20:34:16,073 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume false; [2023-11-06 20:34:16,073 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2023-11-06 20:34:16,074 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2023-11-06 20:34:16,074 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2023-11-06 20:34:16,944 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 20:34:18,323 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2023-11-06 20:34:18,324 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2023-11-06 20:34:18,413 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:34:19,635 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:34:19,635 INFO L302 CfgBuilder]: Removed 38 assume(true) statements. [2023-11-06 20:34:19,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:19 BoogieIcfgContainer [2023-11-06 20:34:19,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:34:19,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:34:19,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:34:19,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:34:19,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:34:06" (1/3) ... [2023-11-06 20:34:19,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362d6b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:19, skipping insertion in model container [2023-11-06 20:34:19,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:08" (2/3) ... [2023-11-06 20:34:19,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362d6b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:19, skipping insertion in model container [2023-11-06 20:34:19,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:19" (3/3) ... [2023-11-06 20:34:19,662 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2023-11-06 20:34:19,686 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:34:19,686 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 20:34:19,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:34:19,814 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=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;@20d810f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:34:19,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 20:34:19,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 952 states, 629 states have (on average 1.3863275039745628) internal successors, (872), 653 states have internal predecessors, (872), 267 states have call successors, (267), 55 states have call predecessors, (267), 54 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) [2023-11-06 20:34:19,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 20:34:19,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:34:19,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:34:19,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 20:34:19,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:34:19,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1052493835, now seen corresponding path program 1 times [2023-11-06 20:34:19,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:34:19,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864826631] [2023-11-06 20:34:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:34:19,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:34:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:34:24,545 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 20:34:24,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:34:24,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864826631] [2023-11-06 20:34:24,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864826631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:34:24,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:34:24,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 20:34:24,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081810770] [2023-11-06 20:34:24,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:34:24,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 20:34:24,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:34:24,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 20:34:24,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:34:24,607 INFO L87 Difference]: Start difference. First operand has 952 states, 629 states have (on average 1.3863275039745628) internal successors, (872), 653 states have internal predecessors, (872), 267 states have call successors, (267), 55 states have call predecessors, (267), 54 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 20:34:27,492 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 20:34:29,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 20:34:31,516 WARN L539 Checker$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 20:34:33,520 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 []