./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:36,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:36,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:24:36,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:36,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:36,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:36,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:36,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:36,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:36,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:36,946 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:36,947 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:36,947 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:36,949 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:24:36,949 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:36,950 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:36,950 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:24:36,951 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:24:36,951 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:36,952 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:24:36,952 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:24:36,953 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:24:36,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:36,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:36,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:36,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:36,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:36,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:36,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:36,957 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:36,958 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:36,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:36,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:36,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:36,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:36,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:36,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:36,960 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:24:36,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:24:36,960 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:36,961 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:36,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:36,961 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_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2023-11-19 05:24:37,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:37,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:37,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:37,265 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:37,265 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:37,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/../../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 [2023-11-19 05:24:40,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:41,133 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:41,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/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 [2023-11-19 05:24:41,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/data/db169cec1/4af22d2faa5c4f3795851c1240cb304e/FLAGcbf53e930 [2023-11-19 05:24:41,519 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/data/db169cec1/4af22d2faa5c4f3795851c1240cb304e [2023-11-19 05:24:41,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:41,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:41,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:41,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:41,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:41,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:41" (1/1) ... [2023-11-19 05:24:41,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6001cbd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:41, skipping insertion in model container [2023-11-19 05:24:41,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:41" (1/1) ... [2023-11-19 05:24:41,683 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:43,950 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_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/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] [2023-11-19 05:24:44,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:44,050 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:44,222 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] [2023-11-19 05:24:44,224 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] [2023-11-19 05:24:44,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5744] [2023-11-19 05:24:44,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5752] [2023-11-19 05:24:44,252 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] [2023-11-19 05:24:44,255 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] [2023-11-19 05:24:44,479 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_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/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] [2023-11-19 05:24:44,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:44,701 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:44,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44 WrapperNode [2023-11-19 05:24:44,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:44,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:44,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:44,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:44,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:44,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,079 INFO L138 Inliner]: procedures = 274, calls = 1628, calls flagged for inlining = 149, calls inlined = 146, statements flattened = 5147 [2023-11-19 05:24:45,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:45,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:45,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:45,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:45,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,383 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:45,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:45,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:45,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:45,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (1/1) ... [2023-11-19 05:24:45,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:45,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:45,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:45,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccb8bdf-cae2-4589-8e0e-d23f70548fdb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:45,622 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2023-11-19 05:24:45,623 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2023-11-19 05:24:45,623 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 05:24:45,624 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 05:24:45,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-11-19 05:24:45,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-11-19 05:24:45,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:24:45,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:24:45,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:24:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:24:45,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:24:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:24:45,625 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 05:24:45,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 05:24:45,626 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:24:45,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:24:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 05:24:45,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 05:24:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 05:24:45,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 05:24:45,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:24:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:24:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2023-11-19 05:24:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2023-11-19 05:24:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:24:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:24:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:24:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:24:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-19 05:24:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-19 05:24:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:24:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:24:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-19 05:24:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-19 05:24:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2023-11-19 05:24:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2023-11-19 05:24:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 05:24:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 05:24:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:24:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:24:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 05:24:45,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 05:24:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:24:45,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:24:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 05:24:45,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 05:24:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 05:24:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 05:24:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2023-11-19 05:24:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2023-11-19 05:24:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 05:24:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 05:24:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-19 05:24:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-19 05:24:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-19 05:24:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-19 05:24:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:24:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:24:45,636 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:24:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-19 05:24:45,637 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-19 05:24:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:24:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 05:24:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 05:24:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:24:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:24:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:24:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:24:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 05:24:45,639 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 05:24:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:24:45,639 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:24:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 05:24:45,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 05:24:45,639 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2023-11-19 05:24:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2023-11-19 05:24:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2023-11-19 05:24:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2023-11-19 05:24:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 05:24:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 05:24:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2023-11-19 05:24:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2023-11-19 05:24:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2023-11-19 05:24:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2023-11-19 05:24:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 05:24:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 05:24:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:24:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:24:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:24:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:24:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-19 05:24:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-19 05:24:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-19 05:24:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-19 05:24:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:24:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:24:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2023-11-19 05:24:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2023-11-19 05:24:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:24:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:24:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2023-11-19 05:24:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2023-11-19 05:24:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 05:24:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 05:24:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:24:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:24:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2023-11-19 05:24:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2023-11-19 05:24:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2023-11-19 05:24:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2023-11-19 05:24:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:24:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2023-11-19 05:24:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2023-11-19 05:24:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 05:24:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 05:24:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:24:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:24:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:24:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:24:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-11-19 05:24:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-11-19 05:24:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:24:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:24:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:24:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:24:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:24:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:24:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2023-11-19 05:24:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2023-11-19 05:24:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 05:24:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 05:24:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:24:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2023-11-19 05:24:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2023-11-19 05:24:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 05:24:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 05:24:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2023-11-19 05:24:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2023-11-19 05:24:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:24:45,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:24:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2023-11-19 05:24:45,653 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2023-11-19 05:24:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 05:24:45,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 05:24:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2023-11-19 05:24:45,657 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2023-11-19 05:24:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:24:45,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2023-11-19 05:24:45,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2023-11-19 05:24:45,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 05:24:45,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 05:24:45,661 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2023-11-19 05:24:45,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2023-11-19 05:24:45,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2023-11-19 05:24:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2023-11-19 05:24:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:24:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-19 05:24:45,668 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-19 05:24:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-19 05:24:45,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-19 05:24:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-19 05:24:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-19 05:24:45,669 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 05:24:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 05:24:45,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2023-11-19 05:24:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2023-11-19 05:24:45,669 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2023-11-19 05:24:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2023-11-19 05:24:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 05:24:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 05:24:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2023-11-19 05:24:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2023-11-19 05:24:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-19 05:24:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-19 05:24:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:24:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 05:24:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 05:24:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:46,548 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:46,567 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:47,114 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:24:50,893 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:54,713 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:54,713 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:24:54,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:54 BoogieIcfgContainer [2023-11-19 05:24:54,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:54,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:54,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:54,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:54,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:41" (1/3) ... [2023-11-19 05:24:54,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c7377e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:54, skipping insertion in model container [2023-11-19 05:24:54,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:44" (2/3) ... [2023-11-19 05:24:54,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c7377e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:54, skipping insertion in model container [2023-11-19 05:24:54,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:54" (3/3) ... [2023-11-19 05:24:54,743 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2023-11-19 05:24:54,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:54,762 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:24:54,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:54,874 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;@4cbbfb1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:54,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:24:54,887 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) [2023-11-19 05:24:54,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 05:24:54,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:54,940 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] [2023-11-19 05:24:54,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:24:54,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:54,946 INFO L85 PathProgramCache]: Analyzing trace with hash 991253071, now seen corresponding path program 1 times [2023-11-19 05:24:54,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:54,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11771627] [2023-11-19 05:24:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:54,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:56,144 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-19 05:24:56,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:24:56,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11771627] [2023-11-19 05:24:56,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11771627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:56,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:56,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:24:56,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140250743] [2023-11-19 05:24:56,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:56,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:24:56,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:24:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:24:56,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:24:56,208 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) [2023-11-19 05:24:59,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:01,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:03,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:05,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:07,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:09,445 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 [] [2023-11-19 05:25:11,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:11,344 INFO L93 Difference]: Finished difference Result 4165 states and 6150 transitions. [2023-11-19 05:25:11,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:25:11,347 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 [2023-11-19 05:25:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:11,406 INFO L225 Difference]: With dead ends: 4165 [2023-11-19 05:25:11,406 INFO L226 Difference]: Without dead ends: 2756 [2023-11-19 05:25:11,425 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 [2023-11-19 05:25:11,430 INFO L413 NwaCegarLoop]: 1821 mSDtfsCounter, 2009 mSDsluCounter, 5395 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 5 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 7216 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:11,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 7216 Invalid, 1093 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1083 Invalid, 5 Unknown, 0 Unchecked, 14.7s Time] [2023-11-19 05:25:11,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2023-11-19 05:25:11,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2742. [2023-11-19 05:25:11,835 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) [2023-11-19 05:25:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 4005 transitions. [2023-11-19 05:25:11,882 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 4005 transitions. Word has length 136 [2023-11-19 05:25:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:11,885 INFO L495 AbstractCegarLoop]: Abstraction has 2742 states and 4005 transitions. [2023-11-19 05:25:11,889 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) [2023-11-19 05:25:11,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 4005 transitions. [2023-11-19 05:25:11,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-19 05:25:11,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:11,912 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] [2023-11-19 05:25:11,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:25:11,913 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:11,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2109918998, now seen corresponding path program 1 times [2023-11-19 05:25:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:11,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802839019] [2023-11-19 05:25:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:11,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-19 05:25:12,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:12,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802839019] [2023-11-19 05:25:12,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802839019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:12,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:12,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:25:12,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319263971] [2023-11-19 05:25:12,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:12,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:25:12,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:12,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:25:12,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:25:12,721 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) [2023-11-19 05:25:16,370 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 [] [2023-11-19 05:25:20,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:20,199 INFO L93 Difference]: Finished difference Result 5677 states and 8257 transitions. [2023-11-19 05:25:20,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:25:20,200 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 [2023-11-19 05:25:20,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:20,247 INFO L225 Difference]: With dead ends: 5677 [2023-11-19 05:25:20,247 INFO L226 Difference]: Without dead ends: 4110 [2023-11-19 05:25:20,261 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 [2023-11-19 05:25:20,262 INFO L413 NwaCegarLoop]: 1777 mSDtfsCounter, 1983 mSDsluCounter, 5285 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 7062 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:20,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 7062 Invalid, 1066 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1062 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2023-11-19 05:25:20,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2023-11-19 05:25:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 4091. [2023-11-19 05:25:20,643 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) [2023-11-19 05:25:20,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4091 states to 4091 states and 5973 transitions. [2023-11-19 05:25:20,699 INFO L78 Accepts]: Start accepts. Automaton has 4091 states and 5973 transitions. Word has length 137 [2023-11-19 05:25:20,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:20,702 INFO L495 AbstractCegarLoop]: Abstraction has 4091 states and 5973 transitions. [2023-11-19 05:25:20,703 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) [2023-11-19 05:25:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4091 states and 5973 transitions. [2023-11-19 05:25:20,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-19 05:25:20,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:20,715 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] [2023-11-19 05:25:20,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:25:20,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:20,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:20,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1081014450, now seen corresponding path program 1 times [2023-11-19 05:25:20,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:20,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664647123] [2023-11-19 05:25:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:20,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-19 05:25:21,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:21,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664647123] [2023-11-19 05:25:21,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664647123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:21,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:21,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:25:21,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11603318] [2023-11-19 05:25:21,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:21,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:25:21,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:21,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:25:21,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:25:21,517 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) [2023-11-19 05:25:24,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:27,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []