./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ --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 4c74f17ad80d26d3384a467dad9313e9d7d1be91817d15d75e196d6ef78bc5b2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:57:15,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:57:15,857 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:57:15,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:57:15,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:57:15,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:57:15,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:57:15,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:57:15,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:57:15,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:57:15,919 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:57:15,920 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:57:15,920 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:57:15,921 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:57:15,921 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:57:15,922 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:57:15,922 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:57:15,923 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:57:15,924 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:57:15,924 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:57:15,925 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:57:15,926 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:57:15,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:57:15,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:57:15,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:57:15,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:57:15,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:57:15,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:57:15,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:57:15,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:57:15,931 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:57:15,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:57:15,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:57:15,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:15,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:57:15,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:57:15,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:57:15,934 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:57:15,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:57:15,934 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:57:15,934 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:57:15,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:57:15,935 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_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c74f17ad80d26d3384a467dad9313e9d7d1be91817d15d75e196d6ef78bc5b2 [2023-11-19 04:57:16,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:57:16,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:57:16,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:57:16,352 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:57:16,353 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:57:16,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i [2023-11-19 04:57:19,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:57:20,227 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:57:20,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i [2023-11-19 04:57:20,271 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/data/16d5ce4c9/7c50e7f1801e4f2ba8af456412286157/FLAGefa62016d [2023-11-19 04:57:20,287 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/data/16d5ce4c9/7c50e7f1801e4f2ba8af456412286157 [2023-11-19 04:57:20,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:57:20,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:57:20,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:20,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:57:20,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:57:20,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:20" (1/1) ... [2023-11-19 04:57:20,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77994e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:20, skipping insertion in model container [2023-11-19 04:57:20,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:20" (1/1) ... [2023-11-19 04:57:20,427 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:57:23,262 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_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i[315625,315638] [2023-11-19 04:57:23,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:23,372 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:57:23,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3921] [2023-11-19 04:57:23,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3928] [2023-11-19 04:57:23,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4175] [2023-11-19 04:57:23,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4182] [2023-11-19 04:57:23,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6885] [2023-11-19 04:57:23,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6888] [2023-11-19 04:57:23,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6918] [2023-11-19 04:57:23,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6939] [2023-11-19 04:57:23,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6965] [2023-11-19 04:57:23,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7072] [2023-11-19 04:57:23,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7271] [2023-11-19 04:57:23,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7400] [2023-11-19 04:57:23,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7422] [2023-11-19 04:57:23,871 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7472] [2023-11-19 04:57:23,879 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7612] [2023-11-19 04:57:23,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7729] [2023-11-19 04:57:23,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7845] [2023-11-19 04:57:24,001 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_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i[315625,315638] [2023-11-19 04:57:24,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:24,088 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:57:24,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24 WrapperNode [2023-11-19 04:57:24,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:24,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:24,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:57:24,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:57:24,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:24,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:24,551 INFO L138 Inliner]: procedures = 259, calls = 4523, calls flagged for inlining = 105, calls inlined = 100, statements flattened = 9675 [2023-11-19 04:57:24,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:24,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:57:24,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:57:24,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:57:24,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:24,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:24,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:24,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:24,939 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:24,994 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:25,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:25,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:25,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:57:25,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:57:25,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:57:25,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:57:25,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (1/1) ... [2023-11-19 04:57:25,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:25,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:57:25,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:57:25,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ff2934e-e16f-4e1f-82c5-764bd83aeec0/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:57:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2023-11-19 04:57:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2023-11-19 04:57:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 04:57:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 04:57:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2023-11-19 04:57:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2023-11-19 04:57:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2023-11-19 04:57:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2023-11-19 04:57:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:57:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:57:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:57:25,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:57:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2023-11-19 04:57:25,385 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2023-11-19 04:57:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2023-11-19 04:57:25,386 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2023-11-19 04:57:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 04:57:25,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 04:57:25,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:57:25,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:57:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 04:57:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 04:57:25,387 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2023-11-19 04:57:25,387 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2023-11-19 04:57:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2023-11-19 04:57:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2023-11-19 04:57:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2023-11-19 04:57:25,388 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2023-11-19 04:57:25,388 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2023-11-19 04:57:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2023-11-19 04:57:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2023-11-19 04:57:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2023-11-19 04:57:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 04:57:25,389 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 04:57:25,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:57:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:57:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2023-11-19 04:57:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2023-11-19 04:57:25,390 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2023-11-19 04:57:25,390 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2023-11-19 04:57:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2023-11-19 04:57:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2023-11-19 04:57:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:57:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:57:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:57:25,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:57:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2023-11-19 04:57:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2023-11-19 04:57:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:57:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:57:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2023-11-19 04:57:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2023-11-19 04:57:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2023-11-19 04:57:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2023-11-19 04:57:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-19 04:57:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-19 04:57:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2023-11-19 04:57:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2023-11-19 04:57:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:57:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2023-11-19 04:57:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2023-11-19 04:57:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 04:57:25,395 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 04:57:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:57:25,395 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2023-11-19 04:57:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2023-11-19 04:57:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 04:57:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 04:57:25,396 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2023-11-19 04:57:25,396 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2023-11-19 04:57:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2023-11-19 04:57:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2023-11-19 04:57:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:57:25,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:57:25,397 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2023-11-19 04:57:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2023-11-19 04:57:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure update_done_list [2023-11-19 04:57:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure update_done_list [2023-11-19 04:57:25,398 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2023-11-19 04:57:25,398 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2023-11-19 04:57:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:57:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2023-11-19 04:57:25,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2023-11-19 04:57:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:57:25,399 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2023-11-19 04:57:25,399 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2023-11-19 04:57:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2023-11-19 04:57:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2023-11-19 04:57:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2023-11-19 04:57:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2023-11-19 04:57:25,400 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:57:25,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:57:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-19 04:57:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-19 04:57:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2023-11-19 04:57:25,401 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2023-11-19 04:57:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:57:25,402 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:57:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2023-11-19 04:57:25,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2023-11-19 04:57:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 04:57:25,416 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 04:57:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start [2023-11-19 04:57:25,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start [2023-11-19 04:57:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2023-11-19 04:57:25,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2023-11-19 04:57:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_setup [2023-11-19 04:57:25,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_setup [2023-11-19 04:57:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2023-11-19 04:57:25,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2023-11-19 04:57:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-19 04:57:25,418 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-19 04:57:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2023-11-19 04:57:25,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2023-11-19 04:57:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-19 04:57:25,418 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-19 04:57:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2023-11-19 04:57:25,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2023-11-19 04:57:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2023-11-19 04:57:25,419 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2023-11-19 04:57:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:57:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2023-11-19 04:57:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2023-11-19 04:57:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 04:57:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 04:57:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2023-11-19 04:57:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2023-11-19 04:57:25,420 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2023-11-19 04:57:25,421 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2023-11-19 04:57:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2023-11-19 04:57:25,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2023-11-19 04:57:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2023-11-19 04:57:25,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2023-11-19 04:57:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2023-11-19 04:57:25,422 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2023-11-19 04:57:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2023-11-19 04:57:25,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2023-11-19 04:57:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2023-11-19 04:57:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2023-11-19 04:57:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2023-11-19 04:57:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2023-11-19 04:57:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 04:57:25,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 04:57:25,423 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2023-11-19 04:57:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2023-11-19 04:57:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2023-11-19 04:57:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2023-11-19 04:57:25,424 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-11-19 04:57:25,424 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-11-19 04:57:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:57:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:57:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2023-11-19 04:57:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2023-11-19 04:57:25,425 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2023-11-19 04:57:25,425 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2023-11-19 04:57:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2023-11-19 04:57:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2023-11-19 04:57:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:57:25,426 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 04:57:25,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 04:57:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2023-11-19 04:57:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2023-11-19 04:57:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 04:57:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 04:57:25,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:57:25,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:57:25,428 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2023-11-19 04:57:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2023-11-19 04:57:25,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:57:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:57:25,428 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_done_list [2023-11-19 04:57:25,428 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_done_list [2023-11-19 04:57:25,429 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2023-11-19 04:57:25,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2023-11-19 04:57:25,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:57:25,429 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-19 04:57:25,429 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-19 04:57:25,429 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2023-11-19 04:57:25,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2023-11-19 04:57:25,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:57:25,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:57:25,430 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-19 04:57:25,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-19 04:57:25,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:57:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2023-11-19 04:57:25,431 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2023-11-19 04:57:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-19 04:57:25,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-19 04:57:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:57:25,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:57:25,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:57:25,432 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2023-11-19 04:57:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2023-11-19 04:57:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2023-11-19 04:57:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2023-11-19 04:57:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2023-11-19 04:57:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2023-11-19 04:57:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2023-11-19 04:57:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2023-11-19 04:57:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 04:57:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 04:57:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_work [2023-11-19 04:57:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_work [2023-11-19 04:57:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2023-11-19 04:57:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2023-11-19 04:57:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2023-11-19 04:57:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2023-11-19 04:57:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2023-11-19 04:57:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2023-11-19 04:57:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 04:57:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 04:57:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2023-11-19 04:57:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2023-11-19 04:57:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2023-11-19 04:57:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2023-11-19 04:57:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-19 04:57:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-19 04:57:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2023-11-19 04:57:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2023-11-19 04:57:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2023-11-19 04:57:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2023-11-19 04:57:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2023-11-19 04:57:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2023-11-19 04:57:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2023-11-19 04:57:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2023-11-19 04:57:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2023-11-19 04:57:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2023-11-19 04:57:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2023-11-19 04:57:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2023-11-19 04:57:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:57:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:57:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 04:57:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 04:57:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2023-11-19 04:57:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2023-11-19 04:57:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 04:57:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 04:57:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2023-11-19 04:57:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2023-11-19 04:57:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2023-11-19 04:57:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2023-11-19 04:57:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:57:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:57:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2023-11-19 04:57:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2023-11-19 04:57:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 04:57:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 04:57:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:57:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:57:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:57:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2023-11-19 04:57:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2023-11-19 04:57:26,604 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:57:26,609 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:57:27,508 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:57:38,064 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:57:45,209 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:57:45,209 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:57:45,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:45 BoogieIcfgContainer [2023-11-19 04:57:45,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:57:45,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:57:45,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:57:45,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:57:45,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:20" (1/3) ... [2023-11-19 04:57:45,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5873f879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:45, skipping insertion in model container [2023-11-19 04:57:45,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:24" (2/3) ... [2023-11-19 04:57:45,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5873f879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:45, skipping insertion in model container [2023-11-19 04:57:45,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:45" (3/3) ... [2023-11-19 04:57:45,249 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i [2023-11-19 04:57:45,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:57:45,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:57:45,422 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:57:45,435 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;@1ee591a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:57:45,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:57:45,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 2546 states, 1587 states have (on average 1.3371140516698172) internal successors, (2122), 1657 states have internal predecessors, (2122), 842 states have call successors, (842), 120 states have call predecessors, (842), 119 states have return successors, (835), 828 states have call predecessors, (835), 835 states have call successors, (835) [2023-11-19 04:57:45,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-19 04:57:45,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:45,516 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:45,517 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:57:45,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:45,526 INFO L85 PathProgramCache]: Analyzing trace with hash -815673431, now seen corresponding path program 1 times [2023-11-19 04:57:45,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:45,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380363327] [2023-11-19 04:57:45,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:45,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:47,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-11-19 04:57:47,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:47,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380363327] [2023-11-19 04:57:47,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380363327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:47,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:47,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503981988] [2023-11-19 04:57:47,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:47,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:57:47,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:47,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:57:47,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:47,764 INFO L87 Difference]: Start difference. First operand has 2546 states, 1587 states have (on average 1.3371140516698172) internal successors, (2122), 1657 states have internal predecessors, (2122), 842 states have call successors, (842), 120 states have call predecessors, (842), 119 states have return successors, (835), 828 states have call predecessors, (835), 835 states have call successors, (835) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 04:57:49,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:57:54,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:54,700 INFO L93 Difference]: Finished difference Result 7479 states and 11265 transitions. [2023-11-19 04:57:54,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:57:54,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 270 [2023-11-19 04:57:54,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:54,793 INFO L225 Difference]: With dead ends: 7479 [2023-11-19 04:57:54,793 INFO L226 Difference]: Without dead ends: 4963 [2023-11-19 04:57:54,831 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 [2023-11-19 04:57:54,835 INFO L413 NwaCegarLoop]: 3394 mSDtfsCounter, 3729 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3729 SdHoareTripleChecker+Valid, 6700 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:54,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3729 Valid, 6700 Invalid, 767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 764 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2023-11-19 04:57:54,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2023-11-19 04:57:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4959. [2023-11-19 04:57:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4959 states, 3098 states have (on average 1.3334409296320207) internal successors, (4131), 3221 states have internal predecessors, (4131), 1625 states have call successors, (1625), 236 states have call predecessors, (1625), 235 states have return successors, (1624), 1609 states have call predecessors, (1624), 1624 states have call successors, (1624) [2023-11-19 04:57:55,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4959 states to 4959 states and 7380 transitions. [2023-11-19 04:57:55,485 INFO L78 Accepts]: Start accepts. Automaton has 4959 states and 7380 transitions. Word has length 270 [2023-11-19 04:57:55,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:55,490 INFO L495 AbstractCegarLoop]: Abstraction has 4959 states and 7380 transitions. [2023-11-19 04:57:55,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 04:57:55,491 INFO L276 IsEmpty]: Start isEmpty. Operand 4959 states and 7380 transitions. [2023-11-19 04:57:55,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-11-19 04:57:55,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:55,501 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:55,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:57:55,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:57:55,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash 18781598, now seen corresponding path program 1 times [2023-11-19 04:57:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:55,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281349815] [2023-11-19 04:57:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-11-19 04:57:56,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:56,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281349815] [2023-11-19 04:57:56,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281349815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:56,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:56,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:56,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106831715] [2023-11-19 04:57:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:56,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:57:56,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:56,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:57:56,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:56,525 INFO L87 Difference]: Start difference. First operand 4959 states and 7380 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-19 04:57:58,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []