./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--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/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_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/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_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:13,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:13,525 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:29:13,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:13,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:13,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:13,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:13,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:13,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:13,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:13,583 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:13,583 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:13,584 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:13,586 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:29:13,586 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:13,587 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:13,587 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:29:13,587 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:29:13,588 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:13,588 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:29:13,589 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:29:13,589 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:29:13,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:13,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:13,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:29:13,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:13,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:13,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:13,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:13,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:13,596 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:13,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:13,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:13,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:13,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:13,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:13,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:13,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:13,598 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:29:13,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:29:13,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:13,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:13,599 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:13,599 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:13,600 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_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2023-11-23 21:29:13,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:13,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:13,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:13,960 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:13,960 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:13,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2023-11-23 21:29:17,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:17,769 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:17,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2023-11-23 21:29:17,823 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/data/e2a5c44ec/200736a8454447258625fca0b7b8aead/FLAG912870231 [2023-11-23 21:29:17,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/data/e2a5c44ec/200736a8454447258625fca0b7b8aead [2023-11-23 21:29:17,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:17,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:17,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:17,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:17,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:17,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:17" (1/1) ... [2023-11-23 21:29:17,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a8425d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:17, skipping insertion in model container [2023-11-23 21:29:17,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:17" (1/1) ... [2023-11-23 21:29:18,002 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:20,214 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_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2023-11-23 21:29:20,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:20,345 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:20,495 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"); [5565] [2023-11-23 21:29:20,497 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)); [5572] [2023-11-23 21:29:20,515 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5744] [2023-11-23 21:29:20,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5752] [2023-11-23 21:29:20,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5954-5955] [2023-11-23 21:29:20,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5983-5984] [2023-11-23 21:29:20,822 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_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2023-11-23 21:29:20,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:21,029 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:21,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21 WrapperNode [2023-11-23 21:29:21,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:21,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:21,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:21,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:21,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,130 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,361 INFO L138 Inliner]: procedures = 274, calls = 1628, calls flagged for inlining = 149, calls inlined = 146, statements flattened = 5147 [2023-11-23 21:29:21,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:21,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:21,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:21,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:21,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,739 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:21,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:21,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:21,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:21,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (1/1) ... [2023-11-23 21:29:21,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:21,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:21,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:21,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2191eb54-9d85-4ed8-aee2-4738cb5bd94c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2023-11-23 21:29:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2023-11-23 21:29:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-23 21:29:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-23 21:29:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-11-23 21:29:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-11-23 21:29:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:29:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:29:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:29:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:29:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:29:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:29:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:29:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:29:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:29:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:29:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:29:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:29:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:29:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:29:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:29:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:29:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2023-11-23 21:29:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2023-11-23 21:29:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:29:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:29:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:29:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:29:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-23 21:29:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-23 21:29:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:29:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:29:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-23 21:29:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-23 21:29:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2023-11-23 21:29:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2023-11-23 21:29:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-23 21:29:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-23 21:29:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 21:29:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 21:29:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:29:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:29:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:29:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:29:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:29:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:29:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2023-11-23 21:29:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2023-11-23 21:29:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:29:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:29:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-23 21:29:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-23 21:29:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-23 21:29:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-23 21:29:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:29:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:29:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:29:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-23 21:29:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-23 21:29:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:29:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:29:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:29:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 21:29:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 21:29:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:29:21,885 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:29:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 21:29:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 21:29:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:29:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:29:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:29:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:29:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2023-11-23 21:29:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2023-11-23 21:29:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2023-11-23 21:29:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2023-11-23 21:29:21,888 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:29:21,888 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:29:21,889 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2023-11-23 21:29:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2023-11-23 21:29:21,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2023-11-23 21:29:21,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2023-11-23 21:29:21,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:29:21,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:29:21,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:29:21,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:29:21,890 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:29:21,891 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:29:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-23 21:29:21,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-23 21:29:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-23 21:29:21,891 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-23 21:29:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:29:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:29:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2023-11-23 21:29:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2023-11-23 21:29:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:29:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:29:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2023-11-23 21:29:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2023-11-23 21:29:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-23 21:29:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-23 21:29:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:29:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:29:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2023-11-23 21:29:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2023-11-23 21:29:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2023-11-23 21:29:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2023-11-23 21:29:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:29:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2023-11-23 21:29:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2023-11-23 21:29:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-23 21:29:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-23 21:29:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:29:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:29:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:29:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:29:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-11-23 21:29:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-11-23 21:29:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:29:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:29:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:29:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:29:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:29:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:29:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2023-11-23 21:29:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2023-11-23 21:29:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:29:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:29:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:29:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2023-11-23 21:29:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2023-11-23 21:29:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 21:29:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 21:29:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2023-11-23 21:29:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2023-11-23 21:29:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:29:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:29:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2023-11-23 21:29:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2023-11-23 21:29:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:29:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:29:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2023-11-23 21:29:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2023-11-23 21:29:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:29:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2023-11-23 21:29:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2023-11-23 21:29:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:29:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:29:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2023-11-23 21:29:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2023-11-23 21:29:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2023-11-23 21:29:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2023-11-23 21:29:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:29:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-23 21:29:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-23 21:29:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:29:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:29:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-23 21:29:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-23 21:29:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 21:29:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 21:29:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2023-11-23 21:29:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2023-11-23 21:29:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2023-11-23 21:29:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2023-11-23 21:29:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 21:29:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 21:29:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2023-11-23 21:29:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2023-11-23 21:29:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-23 21:29:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-23 21:29:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 21:29:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 21:29:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:22,768 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:22,773 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:23,245 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:29:27,434 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:30,939 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:30,939 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:30,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:30 BoogieIcfgContainer [2023-11-23 21:29:30,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:30,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:30,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:30,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:30,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:17" (1/3) ... [2023-11-23 21:29:30,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157d2b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:30, skipping insertion in model container [2023-11-23 21:29:30,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:21" (2/3) ... [2023-11-23 21:29:30,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157d2b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:30, skipping insertion in model container [2023-11-23 21:29:30,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:30" (3/3) ... [2023-11-23 21:29:30,958 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2023-11-23 21:29:30,981 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:30,981 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:31,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:31,097 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;@3ac472e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:31,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 1409 states, 845 states have (on average 1.3171597633136094) internal successors, (1113), 868 states have internal predecessors, (1113), 479 states have call successors, (479), 84 states have call predecessors, (479), 83 states have return successors, (472), 468 states have call predecessors, (472), 472 states have call successors, (472) [2023-11-23 21:29:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 21:29:31,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:31,179 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:31,179 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:31,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:31,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1752568556, now seen corresponding path program 1 times [2023-11-23 21:29:31,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:31,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883765214] [2023-11-23 21:29:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:31,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:32,548 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 21:29:32,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:32,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883765214] [2023-11-23 21:29:32,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883765214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:32,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:32,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:29:32,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464744242] [2023-11-23 21:29:32,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:32,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:32,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:32,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:32,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:32,617 INFO L87 Difference]: Start difference. First operand has 1409 states, 845 states have (on average 1.3171597633136094) internal successors, (1113), 868 states have internal predecessors, (1113), 479 states have call successors, (479), 84 states have call predecessors, (479), 83 states have return successors, (472), 468 states have call predecessors, (472), 472 states have call successors, (472) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:29:35,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:37,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:39,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:40,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:40,942 INFO L93 Difference]: Finished difference Result 4165 states and 6150 transitions. [2023-11-23 21:29:40,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:29:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 136 [2023-11-23 21:29:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:40,985 INFO L225 Difference]: With dead ends: 4165 [2023-11-23 21:29:40,986 INFO L226 Difference]: Without dead ends: 2756 [2023-11-23 21:29:41,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:29:41,004 INFO L413 NwaCegarLoop]: 1821 mSDtfsCounter, 2009 mSDsluCounter, 5395 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 7216 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:41,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 7216 Invalid, 1092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1086 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2023-11-23 21:29:41,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2023-11-23 21:29:41,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2742. [2023-11-23 21:29:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 1658 states have (on average 1.3063932448733413) internal successors, (2166), 1691 states have internal predecessors, (2166), 920 states have call successors, (920), 164 states have call predecessors, (920), 163 states have return successors, (919), 906 states have call predecessors, (919), 919 states have call successors, (919) [2023-11-23 21:29:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 4005 transitions. [2023-11-23 21:29:41,292 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 4005 transitions. Word has length 136 [2023-11-23 21:29:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:41,294 INFO L495 AbstractCegarLoop]: Abstraction has 2742 states and 4005 transitions. [2023-11-23 21:29:41,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:29:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 4005 transitions. [2023-11-23 21:29:41,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 21:29:41,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:41,317 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:41,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:29:41,317 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:41,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:41,318 INFO L85 PathProgramCache]: Analyzing trace with hash -883401003, now seen corresponding path program 1 times [2023-11-23 21:29:41,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:41,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415073848] [2023-11-23 21:29:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:41,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 21:29:41,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:41,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415073848] [2023-11-23 21:29:41,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415073848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:41,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:41,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:29:41,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589667451] [2023-11-23 21:29:41,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:41,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:41,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:41,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:41,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:41,915 INFO L87 Difference]: Start difference. First operand 2742 states and 4005 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:29:46,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:48,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:52,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:54,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:56,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:56,863 INFO L93 Difference]: Finished difference Result 5677 states and 8257 transitions. [2023-11-23 21:29:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:29:56,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 137 [2023-11-23 21:29:56,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:56,901 INFO L225 Difference]: With dead ends: 5677 [2023-11-23 21:29:56,901 INFO L226 Difference]: Without dead ends: 4110 [2023-11-23 21:29:56,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:29:56,913 INFO L413 NwaCegarLoop]: 1777 mSDtfsCounter, 1983 mSDsluCounter, 5285 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 7062 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:56,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 7062 Invalid, 1068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1060 Invalid, 5 Unknown, 0 Unchecked, 14.6s Time] [2023-11-23 21:29:56,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2023-11-23 21:29:57,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 4091. [2023-11-23 21:29:57,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4091 states, 2479 states have (on average 1.3069786204114562) internal successors, (3240), 2526 states have internal predecessors, (3240), 1367 states have call successors, (1367), 245 states have call predecessors, (1367), 244 states have return successors, (1366), 1349 states have call predecessors, (1366), 1366 states have call successors, (1366) [2023-11-23 21:29:57,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4091 states to 4091 states and 5973 transitions. [2023-11-23 21:29:57,210 INFO L78 Accepts]: Start accepts. Automaton has 4091 states and 5973 transitions. Word has length 137 [2023-11-23 21:29:57,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:57,211 INFO L495 AbstractCegarLoop]: Abstraction has 4091 states and 5973 transitions. [2023-11-23 21:29:57,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:29:57,212 INFO L276 IsEmpty]: Start isEmpty. Operand 4091 states and 5973 transitions. [2023-11-23 21:29:57,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 21:29:57,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:57,221 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:57,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:29:57,222 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:57,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:57,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1953078671, now seen corresponding path program 1 times [2023-11-23 21:29:57,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:57,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235380100] [2023-11-23 21:29:57,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:57,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:57,857 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 21:29:57,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:57,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235380100] [2023-11-23 21:29:57,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235380100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:57,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:57,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:29:57,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067000541] [2023-11-23 21:29:57,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:57,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:57,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:57,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:57,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:57,863 INFO L87 Difference]: Start difference. First operand 4091 states and 5973 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:30:01,899 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 21:30:03,908 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 []