./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:31:16,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:31:16,589 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:31:16,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:31:16,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:31:16,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:31:16,640 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:31:16,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:31:16,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:31:16,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:31:16,647 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:31:16,648 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:31:16,649 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:31:16,650 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:31:16,651 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:31:16,651 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:31:16,652 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:31:16,652 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:31:16,652 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:31:16,653 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:31:16,653 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:31:16,654 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:31:16,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:31:16,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:31:16,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:31:16,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:31:16,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:31:16,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:31:16,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:31:16,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:31:16,659 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:31:16,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:31:16,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:31:16,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:31:16,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:16,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:31:16,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:31:16,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:31:16,661 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:31:16,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:31:16,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:31:16,662 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:31:16,662 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:31:16,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:31:16,663 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_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed [2023-11-23 21:31:16,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:31:17,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:31:17,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:31:17,022 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:31:17,022 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:31:17,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2023-11-23 21:31:20,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:31:20,805 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:31:20,805 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2023-11-23 21:31:20,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/data/80b7e7efd/75a600c5459c4d5c9fb9a146a4030c7e/FLAG8c379ea9a [2023-11-23 21:31:20,894 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/data/80b7e7efd/75a600c5459c4d5c9fb9a146a4030c7e [2023-11-23 21:31:20,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:31:20,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:31:20,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:20,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:31:20,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:31:20,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:20" (1/1) ... [2023-11-23 21:31:20,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be9cdd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:20, skipping insertion in model container [2023-11-23 21:31:20,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:20" (1/1) ... [2023-11-23 21:31:21,078 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:31:24,158 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_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2023-11-23 21:31:24,201 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_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2023-11-23 21:31:24,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:24,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:31:24,415 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"); [5400] [2023-11-23 21:31:24,417 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)); [5407] [2023-11-23 21:31:24,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5414] [2023-11-23 21:31:24,669 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_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2023-11-23 21:31:24,670 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_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2023-11-23 21:31:24,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:24,926 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:31:24,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24 WrapperNode [2023-11-23 21:31:24,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:24,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:24,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:31:24,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:31:24,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,298 INFO L138 Inliner]: procedures = 393, calls = 3417, calls flagged for inlining = 187, calls inlined = 167, statements flattened = 6275 [2023-11-23 21:31:25,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:25,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:31:25,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:31:25,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:31:25,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:31:25,705 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:31:25,705 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:31:25,705 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:31:25,706 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (1/1) ... [2023-11-23 21:31:25,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:25,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:25,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:31:25,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16a0c3f8-907b-4b48-8e28-8e44e9ab1410/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:31:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:31:25,786 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:31:25,786 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2023-11-23 21:31:25,787 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2023-11-23 21:31:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:31:25,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:31:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2023-11-23 21:31:25,787 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2023-11-23 21:31:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2023-11-23 21:31:25,788 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2023-11-23 21:31:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure read_mii_word [2023-11-23 21:31:25,788 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mii_word [2023-11-23 21:31:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-23 21:31:25,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-23 21:31:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-23 21:31:25,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-23 21:31:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:31:25,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:31:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:31:25,791 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:31:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:31:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:31:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:31:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:31:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:31:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-23 21:31:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-23 21:31:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_dec_workqueue [2023-11-23 21:31:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_dec_workqueue [2023-11-23 21:31:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:31:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:31:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-23 21:31:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-23 21:31:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_disconnect [2023-11-23 21:31:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_disconnect [2023-11-23 21:31:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:31:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2023-11-23 21:31:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2023-11-23 21:31:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:31:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure __mii_op [2023-11-23 21:31:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __mii_op [2023-11-23 21:31:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:31:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:31:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:31:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:31:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:31:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-23 21:31:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-23 21:31:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:31:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:31:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_wol [2023-11-23 21:31:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_wol [2023-11-23 21:31:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:31:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:31:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 21:31:25,799 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 21:31:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:31:25,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:31:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:31:25,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:31:25,801 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_multicast [2023-11-23 21:31:25,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_multicast [2023-11-23 21:31:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure set_register [2023-11-23 21:31:25,802 INFO L138 BoogieDeclarations]: Found implementation of procedure set_register [2023-11-23 21:31:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:31:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:31:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:31:25,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:31:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:31:25,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:31:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:31:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:31:25,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:31:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-23 21:31:25,805 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-23 21:31:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-23 21:31:25,805 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-23 21:31:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-23 21:31:25,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-23 21:31:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-23 21:31:25,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-23 21:31:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 21:31:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 21:31:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:31:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:31:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2023-11-23 21:31:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2023-11-23 21:31:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:31:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:31:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure read_bulk_callback [2023-11-23 21:31:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure read_bulk_callback [2023-11-23 21:31:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 21:31:25,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 21:31:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:31:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:31:25,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:31:25,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:31:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure write_mii_word [2023-11-23 21:31:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mii_word [2023-11-23 21:31:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-23 21:31:25,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-23 21:31:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2023-11-23 21:31:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2023-11-23 21:31:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:31:25,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:31:25,811 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_open [2023-11-23 21:31:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_open [2023-11-23 21:31:25,812 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:31:25,812 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:31:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-23 21:31:25,813 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-23 21:31:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:31:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_word [2023-11-23 21:31:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_word [2023-11-23 21:31:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:31:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:31:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:31:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_nway_reset [2023-11-23 21:31:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_nway_reset [2023-11-23 21:31:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_resume [2023-11-23 21:31:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_resume [2023-11-23 21:31:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:31:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:31:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:31:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:31:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:31:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-23 21:31:25,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-23 21:31:25,817 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_tx_timeout [2023-11-23 21:31:25,818 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_tx_timeout [2023-11-23 21:31:25,818 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:31:25,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:31:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-23 21:31:25,819 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-23 21:31:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urbs [2023-11-23 21:31:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urbs [2023-11-23 21:31:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:31:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:31:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:31:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:31:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:31:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:31:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure intr_callback [2023-11-23 21:31:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_callback [2023-11-23 21:31:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2023-11-23 21:31:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2023-11-23 21:31:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 21:31:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 21:31:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:31:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:31:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2023-11-23 21:31:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2023-11-23 21:31:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:31:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:31:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:31:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:31:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:31:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 21:31:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 21:31:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2023-11-23 21:31:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2023-11-23 21:31:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:31:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:31:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_close [2023-11-23 21:31:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_close [2023-11-23 21:31:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2023-11-23 21:31:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2023-11-23 21:31:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-23 21:31:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2023-11-23 21:31:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2023-11-23 21:31:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:31:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2023-11-23 21:31:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2023-11-23 21:31:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:31:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:31:26,654 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:31:26,658 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:31:27,511 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:31:35,206 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:31:35,857 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:31:38,083 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:31:38,084 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:31:38,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:38 BoogieIcfgContainer [2023-11-23 21:31:38,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:31:38,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:31:38,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:31:38,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:31:38,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:31:20" (1/3) ... [2023-11-23 21:31:38,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40946065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:38, skipping insertion in model container [2023-11-23 21:31:38,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:24" (2/3) ... [2023-11-23 21:31:38,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40946065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:38, skipping insertion in model container [2023-11-23 21:31:38,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:38" (3/3) ... [2023-11-23 21:31:38,095 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2023-11-23 21:31:38,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:31:38,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:31:38,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:31:38,204 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;@7203d883, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:31:38,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:31:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 1144 states, 711 states have (on average 1.3319268635724333) internal successors, (947), 719 states have internal predecessors, (947), 354 states have call successors, (354), 79 states have call predecessors, (354), 78 states have return successors, (348), 346 states have call predecessors, (348), 348 states have call successors, (348) [2023-11-23 21:31:38,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-23 21:31:38,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:38,242 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:38,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:38,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:38,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1907965454, now seen corresponding path program 1 times [2023-11-23 21:31:38,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:31:38,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729023230] [2023-11-23 21:31:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:38,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:31:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:39,824 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-23 21:31:39,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:31:39,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729023230] [2023-11-23 21:31:39,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729023230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:39,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:39,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:31:39,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979656070] [2023-11-23 21:31:39,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:39,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:31:39,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:31:39,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:31:39,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:31:39,882 INFO L87 Difference]: Start difference. First operand has 1144 states, 711 states have (on average 1.3319268635724333) internal successors, (947), 719 states have internal predecessors, (947), 354 states have call successors, (354), 79 states have call predecessors, (354), 78 states have return successors, (348), 346 states have call predecessors, (348), 348 states have call successors, (348) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 21:31:45,841 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 [] [2023-11-23 21:31:47,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:49,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:50,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:50,075 INFO L93 Difference]: Finished difference Result 3337 states and 4858 transitions. [2023-11-23 21:31:50,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:31:50,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 146 [2023-11-23 21:31:50,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:50,124 INFO L225 Difference]: With dead ends: 3337 [2023-11-23 21:31:50,124 INFO L226 Difference]: Without dead ends: 2153 [2023-11-23 21:31:50,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:31:50,143 INFO L413 NwaCegarLoop]: 1459 mSDtfsCounter, 1550 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:50,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 2838 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 535 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2023-11-23 21:31:50,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2023-11-23 21:31:50,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2149. [2023-11-23 21:31:50,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2149 states, 1362 states have (on average 1.3267254038179148) internal successors, (1807), 1376 states have internal predecessors, (1807), 636 states have call successors, (636), 150 states have call predecessors, (636), 150 states have return successors, (636), 631 states have call predecessors, (636), 636 states have call successors, (636) [2023-11-23 21:31:50,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 3079 transitions. [2023-11-23 21:31:50,386 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 3079 transitions. Word has length 146 [2023-11-23 21:31:50,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:50,388 INFO L495 AbstractCegarLoop]: Abstraction has 2149 states and 3079 transitions. [2023-11-23 21:31:50,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 21:31:50,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 3079 transitions. [2023-11-23 21:31:50,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-23 21:31:50,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:50,397 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:50,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:31:50,398 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:50,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:50,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1904105539, now seen corresponding path program 1 times [2023-11-23 21:31:50,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:31:50,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640612301] [2023-11-23 21:31:50,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:50,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:31:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-23 21:31:51,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:31:51,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640612301] [2023-11-23 21:31:51,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640612301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:51,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:51,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:31:51,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952376127] [2023-11-23 21:31:51,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:51,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:31:51,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:31:51,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:31:51,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:31:51,139 INFO L87 Difference]: Start difference. First operand 2149 states and 3079 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:31:54,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:58,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:00,590 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 [] [2023-11-23 21:32:00,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:00,707 INFO L93 Difference]: Finished difference Result 6037 states and 8605 transitions. [2023-11-23 21:32:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:00,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 159 [2023-11-23 21:32:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:00,748 INFO L225 Difference]: With dead ends: 6037 [2023-11-23 21:32:00,748 INFO L226 Difference]: Without dead ends: 3913 [2023-11-23 21:32:00,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:00,763 INFO L413 NwaCegarLoop]: 1331 mSDtfsCounter, 1272 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:00,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 2603 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 560 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2023-11-23 21:32:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2023-11-23 21:32:00,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3907. [2023-11-23 21:32:00,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3907 states, 2464 states have (on average 1.3125) internal successors, (3234), 2492 states have internal predecessors, (3234), 1154 states have call successors, (1154), 288 states have call predecessors, (1154), 288 states have return successors, (1160), 1140 states have call predecessors, (1160), 1154 states have call successors, (1160) [2023-11-23 21:32:01,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3907 states to 3907 states and 5548 transitions. [2023-11-23 21:32:01,028 INFO L78 Accepts]: Start accepts. Automaton has 3907 states and 5548 transitions. Word has length 159 [2023-11-23 21:32:01,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:01,029 INFO L495 AbstractCegarLoop]: Abstraction has 3907 states and 5548 transitions. [2023-11-23 21:32:01,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:32:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3907 states and 5548 transitions. [2023-11-23 21:32:01,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-23 21:32:01,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:01,040 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:01,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:32:01,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:01,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:01,041 INFO L85 PathProgramCache]: Analyzing trace with hash -566547562, now seen corresponding path program 1 times [2023-11-23 21:32:01,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:01,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647166350] [2023-11-23 21:32:01,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:01,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:01,880 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-23 21:32:01,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:01,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647166350] [2023-11-23 21:32:01,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647166350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:01,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:01,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:01,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803140530] [2023-11-23 21:32:01,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:01,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:01,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:01,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:01,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:01,883 INFO L87 Difference]: Start difference. First operand 3907 states and 5548 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:32:05,401 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 [] [2023-11-23 21:32:07,410 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 [] [2023-11-23 21:32:08,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:08,418 INFO L93 Difference]: Finished difference Result 9035 states and 12807 transitions. [2023-11-23 21:32:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:08,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 161 [2023-11-23 21:32:08,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:08,462 INFO L225 Difference]: With dead ends: 9035 [2023-11-23 21:32:08,462 INFO L226 Difference]: Without dead ends: 5153 [2023-11-23 21:32:08,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:08,487 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 661 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:08,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 2905 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 646 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2023-11-23 21:32:08,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2023-11-23 21:32:08,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5143. [2023-11-23 21:32:08,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 3291 states have (on average 1.3160133697964145) internal successors, (4331), 3337 states have internal predecessors, (4331), 1453 states have call successors, (1453), 398 states have call predecessors, (1453), 398 states have return successors, (1459), 1425 states have call predecessors, (1459), 1453 states have call successors, (1459) [2023-11-23 21:32:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 7243 transitions. [2023-11-23 21:32:08,906 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 7243 transitions. Word has length 161 [2023-11-23 21:32:08,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:08,907 INFO L495 AbstractCegarLoop]: Abstraction has 5143 states and 7243 transitions. [2023-11-23 21:32:08,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:32:08,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 7243 transitions. [2023-11-23 21:32:08,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-23 21:32:08,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:08,912 INFO L195 NwaCegarLoop]: trace histogram [14, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:08,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:32:08,912 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:08,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:08,913 INFO L85 PathProgramCache]: Analyzing trace with hash -713778312, now seen corresponding path program 1 times [2023-11-23 21:32:08,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:08,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343738707] [2023-11-23 21:32:08,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:08,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:09,546 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2023-11-23 21:32:09,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:09,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343738707] [2023-11-23 21:32:09,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343738707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:09,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:09,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:09,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360932550] [2023-11-23 21:32:09,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:09,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:09,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:09,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:09,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:09,550 INFO L87 Difference]: Start difference. First operand 5143 states and 7243 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)