./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--wan--lmc--lmc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:01,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:01,149 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:29:01,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:01,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:01,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:01,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:01,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:01,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:01,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:01,186 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:01,187 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:01,187 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:01,188 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:29:01,189 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:01,189 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:01,190 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:29:01,191 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:29:01,191 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:01,192 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:29:01,193 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:29:01,193 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:29:01,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:01,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:01,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:29:01,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:01,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:01,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:01,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:01,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:01,199 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:01,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:01,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:01,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:01,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:01,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:01,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:01,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:01,203 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:29:01,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:29:01,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:01,204 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:01,204 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:01,208 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:01,208 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_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2023-11-23 21:29:01,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:01,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:01,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:01,505 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:01,506 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:01,508 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2023-11-23 21:29:04,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:05,593 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:05,594 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2023-11-23 21:29:05,648 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/data/acc6a0117/cebe0c58eec94adda351b7025a81698e/FLAGcb4655628 [2023-11-23 21:29:05,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/data/acc6a0117/cebe0c58eec94adda351b7025a81698e [2023-11-23 21:29:05,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:05,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:05,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:05,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:05,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:05,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:05" (1/1) ... [2023-11-23 21:29:05,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef5e5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:05, skipping insertion in model container [2023-11-23 21:29:05,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:05" (1/1) ... [2023-11-23 21:29:05,883 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:08,591 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_15a06bb4-76ea-41f4-a68c-e523fbe611df/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2023-11-23 21:29:08,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:08,744 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:08,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5924] [2023-11-23 21:29:08,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5932] [2023-11-23 21:29:09,214 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"); [7007] [2023-11-23 21:29:09,215 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)); [7014] [2023-11-23 21:29:09,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [7040] [2023-11-23 21:29:09,718 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_15a06bb4-76ea-41f4-a68c-e523fbe611df/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2023-11-23 21:29:09,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:09,911 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:09,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09 WrapperNode [2023-11-23 21:29:09,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:09,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:09,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:09,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:09,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,301 INFO L138 Inliner]: procedures = 274, calls = 2182, calls flagged for inlining = 123, calls inlined = 120, statements flattened = 5209 [2023-11-23 21:29:10,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:10,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:10,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:10,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:10,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:10,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:10,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:10,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:10,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (1/1) ... [2023-11-23 21:29:10,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:10,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:10,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:10,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a06bb4-76ea-41f4-a68c-e523fbe611df/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2023-11-23 21:29:10,819 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2023-11-23 21:29:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2023-11-23 21:29:10,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2023-11-23 21:29:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:29:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:29:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:29:10,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:29:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:29:10,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:29:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:29:10,821 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:29:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2023-11-23 21:29:10,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2023-11-23 21:29:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2023-11-23 21:29:10,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2023-11-23 21:29:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:29:10,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:29:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:29:10,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:29:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:29:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:29:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2023-11-23 21:29:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2023-11-23 21:29:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2023-11-23 21:29:10,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2023-11-23 21:29:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:29:10,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:29:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:29:10,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:29:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:10,827 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2023-11-23 21:29:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2023-11-23 21:29:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:29:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:29:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:29:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:29:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2023-11-23 21:29:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2023-11-23 21:29:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2023-11-23 21:29:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2023-11-23 21:29:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2023-11-23 21:29:10,830 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2023-11-23 21:29:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2023-11-23 21:29:10,830 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2023-11-23 21:29:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2023-11-23 21:29:10,830 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2023-11-23 21:29:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:29:10,831 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:29:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_get_stats [2023-11-23 21:29:10,831 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_get_stats [2023-11-23 21:29:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:29:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2023-11-23 21:29:10,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2023-11-23 21:29:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2023-11-23 21:29:10,832 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2023-11-23 21:29:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2023-11-23 21:29:10,832 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2023-11-23 21:29:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:29:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 21:29:10,833 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 21:29:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:29:10,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:29:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:29:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:29:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2023-11-23 21:29:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2023-11-23 21:29:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:29:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2023-11-23 21:29:10,835 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2023-11-23 21:29:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:29:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:29:10,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:29:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 21:29:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 21:29:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-23 21:29:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-23 21:29:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:29:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:29:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2023-11-23 21:29:10,837 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2023-11-23 21:29:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:29:10,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:29:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2023-11-23 21:29:10,838 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2023-11-23 21:29:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-23 21:29:10,838 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-23 21:29:10,838 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2023-11-23 21:29:10,838 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2023-11-23 21:29:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2023-11-23 21:29:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2023-11-23 21:29:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:29:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:29:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2023-11-23 21:29:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2023-11-23 21:29:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:29:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:29:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:29:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2023-11-23 21:29:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2023-11-23 21:29:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:29:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:29:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:29:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:29:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2023-11-23 21:29:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2023-11-23 21:29:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2023-11-23 21:29:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2023-11-23 21:29:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:29:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:29:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:29:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:29:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:29:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-23 21:29:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-23 21:29:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:29:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:29:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2023-11-23 21:29:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2023-11-23 21:29:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ioctl [2023-11-23 21:29:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ioctl [2023-11-23 21:29:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:29:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:29:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2023-11-23 21:29:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2023-11-23 21:29:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2023-11-23 21:29:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2023-11-23 21:29:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2023-11-23 21:29:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2023-11-23 21:29:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:29:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:29:10,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:29:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:29:10,846 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:29:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:29:10,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:29:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:29:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2023-11-23 21:29:10,847 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2023-11-23 21:29:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:29:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:29:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-23 21:29:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-23 21:29:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:29:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:29:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:29:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:29:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2023-11-23 21:29:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2023-11-23 21:29:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:29:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:29:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2023-11-23 21:29:10,850 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2023-11-23 21:29:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-23 21:29:10,850 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-23 21:29:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2023-11-23 21:29:10,850 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2023-11-23 21:29:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:29:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:29:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-23 21:29:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-23 21:29:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-23 21:29:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-23 21:29:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:10,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2023-11-23 21:29:10,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2023-11-23 21:29:11,545 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:11,549 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:13,207 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:29:19,355 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:23,111 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:23,113 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:29:23,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:23 BoogieIcfgContainer [2023-11-23 21:29:23,116 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:23,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:23,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:23,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:23,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:05" (1/3) ... [2023-11-23 21:29:23,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2044a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:23, skipping insertion in model container [2023-11-23 21:29:23,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:09" (2/3) ... [2023-11-23 21:29:23,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2044a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:23, skipping insertion in model container [2023-11-23 21:29:23,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:23" (3/3) ... [2023-11-23 21:29:23,134 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2023-11-23 21:29:23,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:23,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:23,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:23,305 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;@13f2229e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:23,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:23,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 1635 states, 933 states have (on average 1.309753483386924) internal successors, (1222), 981 states have internal predecessors, (1222), 624 states have call successors, (624), 77 states have call predecessors, (624), 76 states have return successors, (618), 603 states have call predecessors, (618), 618 states have call successors, (618) [2023-11-23 21:29:23,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-23 21:29:23,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:23,347 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:29:23,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:23,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash 792603274, now seen corresponding path program 1 times [2023-11-23 21:29:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:23,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712818703] [2023-11-23 21:29:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:23,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:24,235 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-23 21:29:24,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:24,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712818703] [2023-11-23 21:29:24,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712818703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:24,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:24,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:24,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402492163] [2023-11-23 21:29:24,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:24,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:24,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:24,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:24,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:24,295 INFO L87 Difference]: Start difference. First operand has 1635 states, 933 states have (on average 1.309753483386924) internal successors, (1222), 981 states have internal predecessors, (1222), 624 states have call successors, (624), 77 states have call predecessors, (624), 76 states have return successors, (618), 603 states have call predecessors, (618), 618 states have call successors, (618) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:29:27,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:29,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:29,012 INFO L93 Difference]: Finished difference Result 4790 states and 7292 transitions. [2023-11-23 21:29:29,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:29,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 72 [2023-11-23 21:29:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:29,075 INFO L225 Difference]: With dead ends: 4790 [2023-11-23 21:29:29,075 INFO L226 Difference]: Without dead ends: 3153 [2023-11-23 21:29:29,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:29,108 INFO L413 NwaCegarLoop]: 2448 mSDtfsCounter, 2320 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2320 SdHoareTripleChecker+Valid, 4623 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:29,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2320 Valid, 4623 Invalid, 557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 552 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-23 21:29:29,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2023-11-23 21:29:29,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 3150. [2023-11-23 21:29:29,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 1802 states have (on average 1.3013318534961154) internal successors, (2345), 1880 states have internal predecessors, (2345), 1198 states have call successors, (1198), 150 states have call predecessors, (1198), 149 states have return successors, (1197), 1167 states have call predecessors, (1197), 1197 states have call successors, (1197) [2023-11-23 21:29:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 4740 transitions. [2023-11-23 21:29:29,707 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 4740 transitions. Word has length 72 [2023-11-23 21:29:29,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:29,708 INFO L495 AbstractCegarLoop]: Abstraction has 3150 states and 4740 transitions. [2023-11-23 21:29:29,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:29:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 4740 transitions. [2023-11-23 21:29:29,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 21:29:29,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:29,730 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 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] [2023-11-23 21:29:29,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:29:29,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:29,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:29,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2032214677, now seen corresponding path program 1 times [2023-11-23 21:29:29,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:29,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344883224] [2023-11-23 21:29:29,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:29,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-23 21:29:30,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:30,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344883224] [2023-11-23 21:29:30,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344883224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:30,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:30,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:29:30,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264377832] [2023-11-23 21:29:30,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:30,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:29:30,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:30,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:29:30,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:29:30,576 INFO L87 Difference]: Start difference. First operand 3150 states and 4740 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:29:32,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:34,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:37,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:37,356 INFO L93 Difference]: Finished difference Result 5288 states and 7948 transitions. [2023-11-23 21:29:37,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:29:37,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2023-11-23 21:29:37,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:37,454 INFO L225 Difference]: With dead ends: 5288 [2023-11-23 21:29:37,455 INFO L226 Difference]: Without dead ends: 5285 [2023-11-23 21:29:37,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:37,467 INFO L413 NwaCegarLoop]: 3014 mSDtfsCounter, 2101 mSDsluCounter, 4709 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2101 SdHoareTripleChecker+Valid, 7723 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:37,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2101 Valid, 7723 Invalid, 920 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 918 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2023-11-23 21:29:37,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5285 states. [2023-11-23 21:29:38,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5285 to 5257. [2023-11-23 21:29:38,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 2989 states have (on average 1.292405486784878) internal successors, (3863), 3127 states have internal predecessors, (3863), 2008 states have call successors, (2008), 262 states have call predecessors, (2008), 259 states have return successors, (2031), 1947 states have call predecessors, (2031), 2007 states have call successors, (2031) [2023-11-23 21:29:38,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 7902 transitions. [2023-11-23 21:29:38,171 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 7902 transitions. Word has length 93 [2023-11-23 21:29:38,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:38,181 INFO L495 AbstractCegarLoop]: Abstraction has 5257 states and 7902 transitions. [2023-11-23 21:29:38,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:29:38,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 7902 transitions. [2023-11-23 21:29:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-23 21:29:38,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:38,222 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:38,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:29:38,223 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:38,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:38,224 INFO L85 PathProgramCache]: Analyzing trace with hash 266196048, now seen corresponding path program 1 times [2023-11-23 21:29:38,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:38,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005382] [2023-11-23 21:29:38,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:38,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 21:29:39,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:39,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005382] [2023-11-23 21:29:39,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:39,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:39,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:29:39,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582957224] [2023-11-23 21:29:39,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:39,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:39,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:39,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:39,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:39,176 INFO L87 Difference]: Start difference. First operand 5257 states and 7902 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 21:29:42,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:43,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:47,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:48,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:48,231 INFO L93 Difference]: Finished difference Result 15611 states and 23512 transitions. [2023-11-23 21:29:48,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:29:48,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 142 [2023-11-23 21:29:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:48,401 INFO L225 Difference]: With dead ends: 15611 [2023-11-23 21:29:48,401 INFO L226 Difference]: Without dead ends: 10380 [2023-11-23 21:29:48,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:29:48,486 INFO L413 NwaCegarLoop]: 2183 mSDtfsCounter, 2396 mSDsluCounter, 6521 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 8704 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:48,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 8704 Invalid, 1069 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1065 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2023-11-23 21:29:48,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10380 states. [2023-11-23 21:29:49,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10380 to 10353. [2023-11-23 21:29:49,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10353 states, 5893 states have (on average 1.2944171050398778) internal successors, (7628), 6173 states have internal predecessors, (7628), 3951 states have call successors, (3951), 513 states have call predecessors, (3951), 508 states have return successors, (4022), 3826 states have call predecessors, (4022), 3950 states have call successors, (4022) [2023-11-23 21:29:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10353 states to 10353 states and 15601 transitions. [2023-11-23 21:29:49,616 INFO L78 Accepts]: Start accepts. Automaton has 10353 states and 15601 transitions. Word has length 142 [2023-11-23 21:29:49,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:49,617 INFO L495 AbstractCegarLoop]: Abstraction has 10353 states and 15601 transitions. [2023-11-23 21:29:49,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 21:29:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 10353 states and 15601 transitions. [2023-11-23 21:29:49,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-23 21:29:49,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:49,641 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:49,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:29:49,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:49,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:49,643 INFO L85 PathProgramCache]: Analyzing trace with hash -53691818, now seen corresponding path program 1 times [2023-11-23 21:29:49,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:49,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021195924] [2023-11-23 21:29:49,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:49,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:50,187 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 21:29:50,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:50,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021195924] [2023-11-23 21:29:50,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021195924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:50,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:50,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:29:50,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350885489] [2023-11-23 21:29:50,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:50,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:29:50,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:50,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:29:50,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:29:50,191 INFO L87 Difference]: Start difference. First operand 10353 states and 15601 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)