./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--packetengines--hamachi.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX --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 375c8b791fa06d541fb014bd5076ab9979e5fb4b76e2515aaac1f292cd2a1d79 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:26,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:27,102 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:55:27,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:27,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:27,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:27,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:27,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:27,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:27,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:27,168 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:27,169 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:27,170 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:27,171 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:55:27,172 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:27,172 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:27,173 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:55:27,173 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:55:27,174 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:27,174 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:55:27,175 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:55:27,175 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:55:27,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:27,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:27,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:55:27,178 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:27,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:27,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:27,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:27,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:27,182 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:27,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:27,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:27,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:27,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:27,184 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:27,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:27,184 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:55:27,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:55:27,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:27,185 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:27,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:27,187 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_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 375c8b791fa06d541fb014bd5076ab9979e5fb4b76e2515aaac1f292cd2a1d79 [2023-11-12 00:55:27,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:27,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:27,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:27,560 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:27,560 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:27,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2023-11-12 00:55:30,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:31,308 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:31,308 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2023-11-12 00:55:31,347 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/data/0b26e3951/7a505a907e7a46fd9602bf6c96e08d59/FLAGe636682a8 [2023-11-12 00:55:31,363 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/data/0b26e3951/7a505a907e7a46fd9602bf6c96e08d59 [2023-11-12 00:55:31,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:31,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:31,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:31,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:31,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:31,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:31" (1/1) ... [2023-11-12 00:55:31,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660490d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:31, skipping insertion in model container [2023-11-12 00:55:31,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:31" (1/1) ... [2023-11-12 00:55:31,521 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:33,545 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_014803a9-a3a2-4510-8cd7-957ba89ae04c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i[258653,258666] [2023-11-12 00:55:33,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:33,697 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:33,878 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"); [5574] [2023-11-12 00:55:33,881 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)); [5581] [2023-11-12 00:55:33,890 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5752] [2023-11-12 00:55:33,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5760] [2023-11-12 00:55:33,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5768] [2023-11-12 00:55:33,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5775] [2023-11-12 00:55:33,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5782] [2023-11-12 00:55:33,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5789] [2023-11-12 00:55:33,905 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)); [5980-5981] [2023-11-12 00:55:33,909 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)); [6009-6010] [2023-11-12 00:55:33,912 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" (108), "i" (12UL)); [6039-6040] [2023-11-12 00:55:33,914 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" (120), "i" (12UL)); [6069-6070] [2023-11-12 00:55:34,121 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_014803a9-a3a2-4510-8cd7-957ba89ae04c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i[258653,258666] [2023-11-12 00:55:34,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:34,350 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:34,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34 WrapperNode [2023-11-12 00:55:34,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:34,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:34,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:34,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:34,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,685 INFO L138 Inliner]: procedures = 226, calls = 1496, calls flagged for inlining = 121, calls inlined = 118, statements flattened = 4314 [2023-11-12 00:55:34,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:34,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:34,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:34,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:34,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:34,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:34,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:34,983 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:34,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (1/1) ... [2023-11-12 00:55:34,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:35,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:35,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:35,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_014803a9-a3a2-4510-8cd7-957ba89ae04c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_drvinfo [2023-11-12 00:55:35,069 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_drvinfo [2023-11-12 00:55:35,069 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2023-11-12 00:55:35,070 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2023-11-12 00:55:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:55:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:55:35,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:55:35,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:55:35,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:55:35,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:55:35,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:55:35,072 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:55:35,072 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:55:35,073 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:55:35,073 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:55:35,074 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:55:35,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-12 00:55:35,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-12 00:55:35,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:55:35,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:55:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2023-11-12 00:55:35,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2023-11-12 00:55:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:55:35,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:55:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:55:35,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:55:35,078 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:55:35,078 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:55:35,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:55:35,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:55:35,079 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:55:35,079 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:55:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:55:35,080 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:55:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-12 00:55:35,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-12 00:55:35,080 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:55:35,080 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:55:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:55:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:55:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:55:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-12 00:55:35,081 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-12 00:55:35,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:55:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 00:55:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 00:55:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:55:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:55:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:55:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:55:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-12 00:55:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-12 00:55:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 00:55:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 00:55:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:55:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-12 00:55:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-12 00:55:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:55:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:55:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:55:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 00:55:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 00:55:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-12 00:55:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-12 00:55:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:55:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:55:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:55:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:55:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:55:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:55:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:55:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:55:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-12 00:55:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-12 00:55:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:55:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-12 00:55:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-12 00:55:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:55:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:55:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:55:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:55:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_ioctl [2023-11-12 00:55:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_ioctl [2023-11-12 00:55:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 00:55:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 00:55:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:55:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:55:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:55:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-12 00:55:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-12 00:55:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:55:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:55:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 00:55:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 00:55:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:55:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-12 00:55:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-12 00:55:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:55:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:55:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:55:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-12 00:55:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-12 00:55:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2023-11-12 00:55:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2023-11-12 00:55:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-12 00:55:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-12 00:55:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-12 00:55:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-12 00:55:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2023-11-12 00:55:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2023-11-12 00:55:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:55:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:55:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:55:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:55:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-12 00:55:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-12 00:55:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-12 00:55:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-12 00:55:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-12 00:55:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-12 00:55:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:55:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-12 00:55:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-12 00:55:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-12 00:55:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-12 00:55:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-12 00:55:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-12 00:55:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-12 00:55:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-12 00:55:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:35,826 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:35,829 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:55:36,918 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:55:39,369 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:41,334 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:41,334 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:55:41,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:41 BoogieIcfgContainer [2023-11-12 00:55:41,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:41,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:41,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:41,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:41,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:31" (1/3) ... [2023-11-12 00:55:41,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0c8da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:41, skipping insertion in model container [2023-11-12 00:55:41,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:34" (2/3) ... [2023-11-12 00:55:41,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0c8da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:41, skipping insertion in model container [2023-11-12 00:55:41,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:41" (3/3) ... [2023-11-12 00:55:41,350 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2023-11-12 00:55:41,371 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:41,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:55:41,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:55:41,462 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;@eeb0cea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:55:41,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:55:41,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 970 states, 590 states have (on average 1.347457627118644) internal successors, (795), 618 states have internal predecessors, (795), 321 states have call successors, (321), 58 states have call predecessors, (321), 57 states have return successors, (313), 303 states have call predecessors, (313), 313 states have call successors, (313) [2023-11-12 00:55:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-12 00:55:41,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:41,513 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:41,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:41,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1861085193, now seen corresponding path program 1 times [2023-11-12 00:55:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:41,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246274583] [2023-11-12 00:55:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:41,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-12 00:55:42,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:42,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246274583] [2023-11-12 00:55:42,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246274583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:42,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:42,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:55:42,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971464100] [2023-11-12 00:55:42,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:42,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:42,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:42,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:42,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:42,698 INFO L87 Difference]: Start difference. First operand has 970 states, 590 states have (on average 1.347457627118644) internal successors, (795), 618 states have internal predecessors, (795), 321 states have call successors, (321), 58 states have call predecessors, (321), 57 states have return successors, (313), 303 states have call predecessors, (313), 313 states have call successors, (313) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 00:55:45,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:55:47,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:55:50,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:55:52,273 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 [] [2023-11-12 00:55:52,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:52,412 INFO L93 Difference]: Finished difference Result 2463 states and 3611 transitions. [2023-11-12 00:55:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:52,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-11-12 00:55:52,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:52,448 INFO L225 Difference]: With dead ends: 2463 [2023-11-12 00:55:52,448 INFO L226 Difference]: Without dead ends: 1485 [2023-11-12 00:55:52,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:52,469 INFO L413 NwaCegarLoop]: 1265 mSDtfsCounter, 789 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:52,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 2429 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 383 Invalid, 4 Unknown, 0 Unchecked, 9.5s Time] [2023-11-12 00:55:52,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2023-11-12 00:55:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1480. [2023-11-12 00:55:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 920 states have (on average 1.317391304347826) internal successors, (1212), 947 states have internal predecessors, (1212), 459 states have call successors, (459), 101 states have call predecessors, (459), 100 states have return successors, (458), 444 states have call predecessors, (458), 458 states have call successors, (458) [2023-11-12 00:55:52,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 2129 transitions. [2023-11-12 00:55:52,698 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 2129 transitions. Word has length 120 [2023-11-12 00:55:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:52,700 INFO L495 AbstractCegarLoop]: Abstraction has 1480 states and 2129 transitions. [2023-11-12 00:55:52,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-12 00:55:52,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 2129 transitions. [2023-11-12 00:55:52,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-12 00:55:52,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:52,713 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:55:52,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:55:52,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:55:52,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1473048156, now seen corresponding path program 1 times [2023-11-12 00:55:52,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:52,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82979783] [2023-11-12 00:55:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:52,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:53,544 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-12 00:55:53,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:53,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82979783] [2023-11-12 00:55:53,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82979783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:53,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:53,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:55:53,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057131675] [2023-11-12 00:55:53,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:53,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:55:53,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:53,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:55:53,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:55:53,553 INFO L87 Difference]: Start difference. First operand 1480 states and 2129 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:55:56,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:55:58,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:00,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:03,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:05,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:07,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:09,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:10,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:10,115 INFO L93 Difference]: Finished difference Result 4334 states and 6223 transitions. [2023-11-12 00:56:10,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:56:10,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 135 [2023-11-12 00:56:10,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:10,143 INFO L225 Difference]: With dead ends: 4334 [2023-11-12 00:56:10,144 INFO L226 Difference]: Without dead ends: 2878 [2023-11-12 00:56:10,153 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 [2023-11-12 00:56:10,155 INFO L413 NwaCegarLoop]: 1239 mSDtfsCounter, 1248 mSDsluCounter, 3677 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 4916 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:10,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 4916 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 650 Invalid, 7 Unknown, 0 Unchecked, 16.3s Time] [2023-11-12 00:56:10,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2023-11-12 00:56:10,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2862. [2023-11-12 00:56:10,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 1796 states have (on average 1.3173719376391981) internal successors, (2366), 1846 states have internal predecessors, (2366), 866 states have call successors, (866), 200 states have call predecessors, (866), 199 states have return successors, (865), 840 states have call predecessors, (865), 865 states have call successors, (865) [2023-11-12 00:56:10,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 4097 transitions. [2023-11-12 00:56:10,441 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 4097 transitions. Word has length 135 [2023-11-12 00:56:10,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:56:10,442 INFO L495 AbstractCegarLoop]: Abstraction has 2862 states and 4097 transitions. [2023-11-12 00:56:10,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:56:10,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 4097 transitions. [2023-11-12 00:56:10,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 00:56:10,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:56:10,451 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:56:10,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:56:10,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:56:10,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:56:10,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1057255020, now seen corresponding path program 1 times [2023-11-12 00:56:10,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:56:10,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020035127] [2023-11-12 00:56:10,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:56:10,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:56:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:56:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-12 00:56:11,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:56:11,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020035127] [2023-11-12 00:56:11,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020035127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:56:11,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:56:11,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:56:11,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675464260] [2023-11-12 00:56:11,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:56:11,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:56:11,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:56:11,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:56:11,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:56:11,084 INFO L87 Difference]: Start difference. First operand 2862 states and 4097 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:56:14,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:16,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:18,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:20,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:22,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:24,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:56:26,369 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 [] [2023-11-12 00:56:27,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:56:27,907 INFO L93 Difference]: Finished difference Result 7114 states and 10175 transitions. [2023-11-12 00:56:27,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:56:27,908 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, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 134 [2023-11-12 00:56:27,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:56:27,946 INFO L225 Difference]: With dead ends: 7114 [2023-11-12 00:56:27,946 INFO L226 Difference]: Without dead ends: 4276 [2023-11-12 00:56:27,961 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 [2023-11-12 00:56:27,962 INFO L413 NwaCegarLoop]: 1251 mSDtfsCounter, 1251 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 4954 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:56:27,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 4954 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 662 Invalid, 7 Unknown, 0 Unchecked, 16.4s Time]