./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje --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 384d76f2b579c3776890746933030ac5fcfc9487f32fbc530ea50ee4dc8551b1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:13:09,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:13:09,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:13:09,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:13:09,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:13:09,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:13:09,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:13:09,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:13:09,273 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:13:09,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:13:09,275 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:13:09,275 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:13:09,276 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:13:09,276 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:13:09,278 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:13:09,278 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:13:09,278 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:13:09,279 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:13:09,283 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:13:09,284 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:13:09,284 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:13:09,284 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:13:09,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:13:09,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:13:09,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:13:09,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:13:09,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:13:09,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:13:09,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:13:09,287 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:13:09,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:13:09,287 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:13:09,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:13:09,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:13:09,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:13:09,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:13:09,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:13:09,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:13:09,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:13:09,292 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:13:09,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:13:09,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:13:09,293 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:13:09,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:13:09,294 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_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 384d76f2b579c3776890746933030ac5fcfc9487f32fbc530ea50ee4dc8551b1 [2024-11-09 07:13:09,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:13:09,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:13:09,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:13:09,621 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:13:09,621 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:13:09,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i Unable to find full path for "g++" [2024-11-09 07:13:11,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:13:12,275 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:13:12,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2024-11-09 07:13:12,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/data/f934c3af9/6833ba992407485682dde6349cbe1792/FLAG535449c26 [2024-11-09 07:13:12,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/data/f934c3af9/6833ba992407485682dde6349cbe1792 [2024-11-09 07:13:12,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:13:12,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:13:12,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:13:12,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:13:12,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:13:12,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:13:12" (1/1) ... [2024-11-09 07:13:12,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1049c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:12, skipping insertion in model container [2024-11-09 07:13:12,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:13:12" (1/1) ... [2024-11-09 07:13:12,510 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:13:14,906 WARN L250 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_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[269359,269372] [2024-11-09 07:13:14,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:13:15,009 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:13:15,184 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"); [5328] [2024-11-09 07:13:15,186 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)); [5335] [2024-11-09 07:13:15,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5342] [2024-11-09 07:13:15,189 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5382-5383] [2024-11-09 07:13:15,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5388-5390] [2024-11-09 07:13:15,445 WARN L250 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_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[269359,269372] [2024-11-09 07:13:15,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:13:15,611 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:13:15,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15 WrapperNode [2024-11-09 07:13:15,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:13:15,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:13:15,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:13:15,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:13:15,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:15,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:15,908 INFO L138 Inliner]: procedures = 306, calls = 1981, calls flagged for inlining = 184, calls inlined = 172, statements flattened = 5291 [2024-11-09 07:13:15,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:13:15,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:13:15,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:13:15,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:13:15,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:15,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:15,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:15,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:16,104 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:16,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:16,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:16,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:16,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:13:16,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:13:16,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:13:16,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:13:16,320 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (1/1) ... [2024-11-09 07:13:16,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:13:16,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:13:16,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:13:16,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:13:16,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 07:13:16,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:13:16,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 07:13:16,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 07:13:16,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 07:13:16,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 07:13:16,391 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 07:13:16,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 07:13:16,391 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2024-11-09 07:13:16,392 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2024-11-09 07:13:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 07:13:16,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 07:13:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2024-11-09 07:13:16,392 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2024-11-09 07:13:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-09 07:13:16,392 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-09 07:13:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2024-11-09 07:13:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2024-11-09 07:13:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 07:13:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 07:13:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2024-11-09 07:13:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2024-11-09 07:13:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2024-11-09 07:13:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2024-11-09 07:13:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2024-11-09 07:13:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2024-11-09 07:13:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2024-11-09 07:13:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2024-11-09 07:13:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:13:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-09 07:13:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-09 07:13:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:13:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 07:13:16,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 07:13:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2024-11-09 07:13:16,395 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2024-11-09 07:13:16,395 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2024-11-09 07:13:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2024-11-09 07:13:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 07:13:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 07:13:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2024-11-09 07:13:16,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2024-11-09 07:13:16,396 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2024-11-09 07:13:16,397 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2024-11-09 07:13:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:13:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 07:13:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2024-11-09 07:13:16,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2024-11-09 07:13:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2024-11-09 07:13:16,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2024-11-09 07:13:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 07:13:16,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 07:13:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-09 07:13:16,398 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-09 07:13:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 07:13:16,399 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 07:13:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 07:13:16,399 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 07:13:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2024-11-09 07:13:16,399 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2024-11-09 07:13:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 07:13:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 07:13:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2024-11-09 07:13:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2024-11-09 07:13:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-09 07:13:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-09 07:13:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-11-09 07:13:16,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-11-09 07:13:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2024-11-09 07:13:16,401 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2024-11-09 07:13:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 07:13:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2024-11-09 07:13:16,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2024-11-09 07:13:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-09 07:13:16,402 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-09 07:13:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2024-11-09 07:13:16,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2024-11-09 07:13:16,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:13:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 07:13:16,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 07:13:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-09 07:13:16,403 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-09 07:13:16,403 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2024-11-09 07:13:16,403 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2024-11-09 07:13:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2024-11-09 07:13:16,404 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2024-11-09 07:13:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2024-11-09 07:13:16,404 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2024-11-09 07:13:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:13:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2024-11-09 07:13:16,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2024-11-09 07:13:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2024-11-09 07:13:16,405 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2024-11-09 07:13:16,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 07:13:16,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 07:13:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2024-11-09 07:13:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2024-11-09 07:13:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-09 07:13:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-09 07:13:16,406 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2024-11-09 07:13:16,406 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2024-11-09 07:13:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2024-11-09 07:13:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2024-11-09 07:13:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:13:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2024-11-09 07:13:16,407 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2024-11-09 07:13:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2024-11-09 07:13:16,408 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2024-11-09 07:13:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 07:13:16,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 07:13:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2024-11-09 07:13:16,408 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2024-11-09 07:13:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:13:16,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-09 07:13:16,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-09 07:13:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 07:13:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 07:13:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2024-11-09 07:13:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2024-11-09 07:13:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2024-11-09 07:13:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2024-11-09 07:13:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2024-11-09 07:13:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2024-11-09 07:13:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:13:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 07:13:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 07:13:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 07:13:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 07:13:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:13:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2024-11-09 07:13:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2024-11-09 07:13:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 07:13:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 07:13:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:13:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:13:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2024-11-09 07:13:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2024-11-09 07:13:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-09 07:13:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-09 07:13:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2024-11-09 07:13:16,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2024-11-09 07:13:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 07:13:16,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 07:13:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2024-11-09 07:13:16,452 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2024-11-09 07:13:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2024-11-09 07:13:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2024-11-09 07:13:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 07:13:16,453 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 07:13:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2024-11-09 07:13:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2024-11-09 07:13:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2024-11-09 07:13:16,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2024-11-09 07:13:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:13:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-09 07:13:16,456 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-09 07:13:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2024-11-09 07:13:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2024-11-09 07:13:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2024-11-09 07:13:16,458 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2024-11-09 07:13:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 07:13:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 07:13:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:13:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:13:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 07:13:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 07:13:17,261 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:13:17,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:13:17,995 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 07:13:26,386 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 07:13:28,180 INFO L? ?]: Removed 1822 outVars from TransFormulas that were not future-live. [2024-11-09 07:13:28,180 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:13:30,336 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:13:30,336 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:13:30,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:13:30 BoogieIcfgContainer [2024-11-09 07:13:30,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:13:30,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:13:30,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:13:30,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:13:30,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:13:12" (1/3) ... [2024-11-09 07:13:30,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffe7d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:13:30, skipping insertion in model container [2024-11-09 07:13:30,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:13:15" (2/3) ... [2024-11-09 07:13:30,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffe7d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:13:30, skipping insertion in model container [2024-11-09 07:13:30,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:13:30" (3/3) ... [2024-11-09 07:13:30,353 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2024-11-09 07:13:30,377 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:13:30,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:13:30,511 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:13:30,521 INFO L333 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, 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;@342595f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:13:30,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:13:30,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 1094 states, 657 states have (on average 1.3211567732115677) internal successors, (868), 676 states have internal predecessors, (868), 362 states have call successors, (362), 75 states have call predecessors, (362), 74 states have return successors, (353), 346 states have call predecessors, (353), 353 states have call successors, (353) [2024-11-09 07:13:30,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 07:13:30,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:13:30,564 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 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] [2024-11-09 07:13:30,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:13:30,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:13:30,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1010477432, now seen corresponding path program 1 times [2024-11-09 07:13:30,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:13:30,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804026493] [2024-11-09 07:13:30,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:13:30,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:13:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:13:40,718 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-09 07:13:40,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:13:40,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804026493] [2024-11-09 07:13:40,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804026493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:13:40,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:13:40,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:13:40,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150182898] [2024-11-09 07:13:40,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:13:40,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:13:40,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:13:40,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:13:40,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:13:40,777 INFO L87 Difference]: Start difference. First operand has 1094 states, 657 states have (on average 1.3211567732115677) internal successors, (868), 676 states have internal predecessors, (868), 362 states have call successors, (362), 75 states have call predecessors, (362), 74 states have return successors, (353), 346 states have call predecessors, (353), 353 states have call successors, (353) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-09 07:13:42,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:44,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:13:49,051 INFO L93 Difference]: Finished difference Result 3159 states and 4586 transitions. [2024-11-09 07:13:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:13:49,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2024-11-09 07:13:49,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:13:49,094 INFO L225 Difference]: With dead ends: 3159 [2024-11-09 07:13:49,094 INFO L226 Difference]: Without dead ends: 2075 [2024-11-09 07:13:49,108 INFO L431 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 [2024-11-09 07:13:49,111 INFO L432 NwaCegarLoop]: 1325 mSDtfsCounter, 1475 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:13:49,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 2604 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 538 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2024-11-09 07:13:49,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2024-11-09 07:13:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2075. [2024-11-09 07:13:49,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 1259 states have (on average 1.3137410643367753) internal successors, (1654), 1298 states have internal predecessors, (1654), 671 states have call successors, (671), 145 states have call predecessors, (671), 144 states have return successors, (667), 653 states have call predecessors, (667), 667 states have call successors, (667) [2024-11-09 07:13:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2992 transitions. [2024-11-09 07:13:49,360 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2992 transitions. Word has length 135 [2024-11-09 07:13:49,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:13:49,362 INFO L471 AbstractCegarLoop]: Abstraction has 2075 states and 2992 transitions. [2024-11-09 07:13:49,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-09 07:13:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2992 transitions. [2024-11-09 07:13:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-09 07:13:49,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:13:49,384 INFO L215 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 5, 5, 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] [2024-11-09 07:13:49,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:13:49,385 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:13:49,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:13:49,388 INFO L85 PathProgramCache]: Analyzing trace with hash 550342880, now seen corresponding path program 1 times [2024-11-09 07:13:49,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:13:49,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564370824] [2024-11-09 07:13:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:13:49,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:13:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:13:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2024-11-09 07:13:58,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:13:58,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564370824] [2024-11-09 07:13:58,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564370824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:13:58,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:13:58,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:13:58,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502223000] [2024-11-09 07:13:58,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:13:58,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:13:58,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:13:58,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:13:58,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:13:58,882 INFO L87 Difference]: Start difference. First operand 2075 states and 2992 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 07:14:00,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:02,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:05,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:13,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:14:13,036 INFO L93 Difference]: Finished difference Result 4131 states and 5993 transitions. [2024-11-09 07:14:13,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:14:13,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 178 [2024-11-09 07:14:13,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:14:13,078 INFO L225 Difference]: With dead ends: 4131 [2024-11-09 07:14:13,078 INFO L226 Difference]: Without dead ends: 4127 [2024-11-09 07:14:13,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:14:13,084 INFO L432 NwaCegarLoop]: 1399 mSDtfsCounter, 1500 mSDsluCounter, 4055 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 5454 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:14:13,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 5454 Invalid, 1098 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1094 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2024-11-09 07:14:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2024-11-09 07:14:13,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 4123. [2024-11-09 07:14:13,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4123 states, 2503 states have (on average 1.3144226927686775) internal successors, (3290), 2582 states have internal predecessors, (3290), 1331 states have call successors, (1331), 291 states have call predecessors, (1331), 288 states have return successors, (1365), 1293 states have call predecessors, (1365), 1323 states have call successors, (1365) [2024-11-09 07:14:13,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 5986 transitions. [2024-11-09 07:14:13,343 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 5986 transitions. Word has length 178 [2024-11-09 07:14:13,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:14:13,347 INFO L471 AbstractCegarLoop]: Abstraction has 4123 states and 5986 transitions. [2024-11-09 07:14:13,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 07:14:13,348 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 5986 transitions. [2024-11-09 07:14:13,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-09 07:14:13,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:14:13,364 INFO L215 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 2, 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] [2024-11-09 07:14:13,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:14:13,364 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:14:13,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:14:13,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1342862011, now seen corresponding path program 1 times [2024-11-09 07:14:13,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:14:13,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571087028] [2024-11-09 07:14:13,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:14:13,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:14:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:14:21,412 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-09 07:14:21,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:14:21,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571087028] [2024-11-09 07:14:21,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571087028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:14:21,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:14:21,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:14:21,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668348152] [2024-11-09 07:14:21,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:14:21,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:14:21,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:14:21,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:14:21,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:14:21,418 INFO L87 Difference]: Start difference. First operand 4123 states and 5986 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 07:14:23,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:25,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:27,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:14:32,715 INFO L93 Difference]: Finished difference Result 4129 states and 5991 transitions. [2024-11-09 07:14:32,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:14:32,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 182 [2024-11-09 07:14:32,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:14:32,756 INFO L225 Difference]: With dead ends: 4129 [2024-11-09 07:14:32,756 INFO L226 Difference]: Without dead ends: 4100 [2024-11-09 07:14:32,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:14:32,764 INFO L432 NwaCegarLoop]: 1294 mSDtfsCounter, 1501 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:14:32,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 3874 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 780 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2024-11-09 07:14:32,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2024-11-09 07:14:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 4100. [2024-11-09 07:14:33,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4100 states, 2495 states have (on average 1.3138276553106212) internal successors, (3278), 2571 states have internal predecessors, (3278), 1319 states have call successors, (1319), 287 states have call predecessors, (1319), 285 states have return successors, (1357), 1285 states have call predecessors, (1357), 1315 states have call successors, (1357) [2024-11-09 07:14:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 5954 transitions. [2024-11-09 07:14:33,050 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 5954 transitions. Word has length 182 [2024-11-09 07:14:33,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:14:33,052 INFO L471 AbstractCegarLoop]: Abstraction has 4100 states and 5954 transitions. [2024-11-09 07:14:33,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 07:14:33,053 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 5954 transitions. [2024-11-09 07:14:33,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-09 07:14:33,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:14:33,075 INFO L215 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:14:33,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:14:33,076 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:14:33,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:14:33,077 INFO L85 PathProgramCache]: Analyzing trace with hash 19163090, now seen corresponding path program 1 times [2024-11-09 07:14:33,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:14:33,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073842535] [2024-11-09 07:14:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:14:33,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:14:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:14:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 849 trivial. 0 not checked. [2024-11-09 07:14:44,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:14:44,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073842535] [2024-11-09 07:14:44,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073842535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:14:44,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:14:44,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:14:44,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859220408] [2024-11-09 07:14:44,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:14:44,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:14:44,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:14:44,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:14:44,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:14:44,918 INFO L87 Difference]: Start difference. First operand 4100 states and 5954 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-09 07:14:46,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:49,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:53,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:14:53,379 INFO L93 Difference]: Finished difference Result 11818 states and 17114 transitions. [2024-11-09 07:14:53,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:14:53,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 264 [2024-11-09 07:14:53,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:14:53,457 INFO L225 Difference]: With dead ends: 11818 [2024-11-09 07:14:53,457 INFO L226 Difference]: Without dead ends: 7741 [2024-11-09 07:14:53,488 INFO L431 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 [2024-11-09 07:14:53,492 INFO L432 NwaCegarLoop]: 1288 mSDtfsCounter, 1279 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:14:53,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 2522 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 602 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2024-11-09 07:14:53,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7741 states. [2024-11-09 07:14:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7741 to 7725. [2024-11-09 07:14:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7725 states, 4663 states have (on average 1.2929444563585675) internal successors, (6029), 4824 states have internal predecessors, (6029), 2495 states have call successors, (2495), 568 states have call predecessors, (2495), 566 states have return successors, (2543), 2420 states have call predecessors, (2543), 2491 states have call successors, (2543) [2024-11-09 07:14:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7725 states to 7725 states and 11067 transitions. [2024-11-09 07:14:54,089 INFO L78 Accepts]: Start accepts. Automaton has 7725 states and 11067 transitions. Word has length 264 [2024-11-09 07:14:54,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:14:54,090 INFO L471 AbstractCegarLoop]: Abstraction has 7725 states and 11067 transitions. [2024-11-09 07:14:54,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-09 07:14:54,094 INFO L276 IsEmpty]: Start isEmpty. Operand 7725 states and 11067 transitions. [2024-11-09 07:14:54,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-09 07:14:54,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:14:54,134 INFO L215 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:14:54,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:14:54,135 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:14:54,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:14:54,136 INFO L85 PathProgramCache]: Analyzing trace with hash 841717777, now seen corresponding path program 1 times [2024-11-09 07:14:54,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:14:54,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398450644] [2024-11-09 07:14:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:14:54,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:15:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:03,294 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2024-11-09 07:15:03,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:15:03,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398450644] [2024-11-09 07:15:03,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398450644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:03,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:03,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:15:03,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080836074] [2024-11-09 07:15:03,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:03,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:15:03,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:15:03,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:15:03,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:15:03,300 INFO L87 Difference]: Start difference. First operand 7725 states and 11067 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-09 07:15:05,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:07,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:11,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:11,969 INFO L93 Difference]: Finished difference Result 17137 states and 24463 transitions. [2024-11-09 07:15:11,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:15:11,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 283 [2024-11-09 07:15:11,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:12,064 INFO L225 Difference]: With dead ends: 17137 [2024-11-09 07:15:12,065 INFO L226 Difference]: Without dead ends: 9435 [2024-11-09 07:15:12,119 INFO L431 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 [2024-11-09 07:15:12,120 INFO L432 NwaCegarLoop]: 1413 mSDtfsCounter, 1392 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:12,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 2675 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 592 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2024-11-09 07:15:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9435 states. [2024-11-09 07:15:12,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9435 to 9419. [2024-11-09 07:15:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9419 states, 5675 states have (on average 1.279647577092511) internal successors, (7262), 5883 states have internal predecessors, (7262), 3023 states have call successors, (3023), 722 states have call predecessors, (3023), 720 states have return successors, (3070), 2923 states have call predecessors, (3070), 3019 states have call successors, (3070) [2024-11-09 07:15:12,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9419 states to 9419 states and 13355 transitions. [2024-11-09 07:15:12,825 INFO L78 Accepts]: Start accepts. Automaton has 9419 states and 13355 transitions. Word has length 283 [2024-11-09 07:15:12,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:12,826 INFO L471 AbstractCegarLoop]: Abstraction has 9419 states and 13355 transitions. [2024-11-09 07:15:12,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-09 07:15:12,827 INFO L276 IsEmpty]: Start isEmpty. Operand 9419 states and 13355 transitions. [2024-11-09 07:15:12,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-09 07:15:12,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:12,862 INFO L215 NwaCegarLoop]: trace histogram [20, 13, 13, 13, 13, 13, 13, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:12,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:15:12,862 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:15:12,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash -707745244, now seen corresponding path program 1 times [2024-11-09 07:15:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:15:12,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217491610] [2024-11-09 07:15:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:15:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-09 07:15:21,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:15:21,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217491610] [2024-11-09 07:15:21,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217491610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:21,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:21,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:15:21,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481980838] [2024-11-09 07:15:21,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:21,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:15:21,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:15:21,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:15:21,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:15:21,613 INFO L87 Difference]: Start difference. First operand 9419 states and 13355 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-09 07:15:23,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:25,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:30,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:30,930 INFO L93 Difference]: Finished difference Result 26195 states and 37170 transitions. [2024-11-09 07:15:30,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:15:30,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 266 [2024-11-09 07:15:30,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:31,069 INFO L225 Difference]: With dead ends: 26195 [2024-11-09 07:15:31,069 INFO L226 Difference]: Without dead ends: 16799 [2024-11-09 07:15:31,131 INFO L431 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 [2024-11-09 07:15:31,132 INFO L432 NwaCegarLoop]: 1401 mSDtfsCounter, 1426 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:31,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 2664 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 571 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2024-11-09 07:15:31,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16799 states. [2024-11-09 07:15:32,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16799 to 16781. [2024-11-09 07:15:32,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16781 states, 10157 states have (on average 1.278920941222802) internal successors, (12990), 10545 states have internal predecessors, (12990), 5331 states have call successors, (5331), 1298 states have call predecessors, (5331), 1292 states have return successors, (5421), 5135 states have call predecessors, (5421), 5327 states have call successors, (5421) [2024-11-09 07:15:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16781 states to 16781 states and 23742 transitions. [2024-11-09 07:15:32,408 INFO L78 Accepts]: Start accepts. Automaton has 16781 states and 23742 transitions. Word has length 266 [2024-11-09 07:15:32,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:32,411 INFO L471 AbstractCegarLoop]: Abstraction has 16781 states and 23742 transitions. [2024-11-09 07:15:32,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-09 07:15:32,412 INFO L276 IsEmpty]: Start isEmpty. Operand 16781 states and 23742 transitions. [2024-11-09 07:15:32,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-09 07:15:32,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:32,473 INFO L215 NwaCegarLoop]: trace histogram [20, 13, 13, 13, 13, 13, 13, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:32,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:15:32,473 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:15:32,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:32,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2098843518, now seen corresponding path program 1 times [2024-11-09 07:15:32,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:15:32,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083012282] [2024-11-09 07:15:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:15:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2024-11-09 07:15:40,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:15:40,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083012282] [2024-11-09 07:15:40,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083012282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:40,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:15:40,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:15:40,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151590554] [2024-11-09 07:15:40,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:40,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:15:40,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:15:40,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:15:40,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:15:40,986 INFO L87 Difference]: Start difference. First operand 16781 states and 23742 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-09 07:15:43,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:45,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:15:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:51,119 INFO L93 Difference]: Finished difference Result 39383 states and 55838 transitions. [2024-11-09 07:15:51,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:15:51,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 270 [2024-11-09 07:15:51,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:51,282 INFO L225 Difference]: With dead ends: 39383 [2024-11-09 07:15:51,282 INFO L226 Difference]: Without dead ends: 24227 [2024-11-09 07:15:51,343 INFO L431 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 [2024-11-09 07:15:51,344 INFO L432 NwaCegarLoop]: 2236 mSDtfsCounter, 1442 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:51,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 3498 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 715 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2024-11-09 07:15:51,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24227 states. [2024-11-09 07:15:52,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24227 to 24209. [2024-11-09 07:15:52,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24209 states, 14665 states have (on average 1.2793726559836345) internal successors, (18762), 15233 states have internal predecessors, (18762), 7675 states have call successors, (7675), 1878 states have call predecessors, (7675), 1868 states have return successors, (7809), 7383 states have call predecessors, (7809), 7671 states have call successors, (7809) [2024-11-09 07:15:52,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24209 states to 24209 states and 34246 transitions. [2024-11-09 07:15:52,845 INFO L78 Accepts]: Start accepts. Automaton has 24209 states and 34246 transitions. Word has length 270 [2024-11-09 07:15:52,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:52,846 INFO L471 AbstractCegarLoop]: Abstraction has 24209 states and 34246 transitions. [2024-11-09 07:15:52,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-09 07:15:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 24209 states and 34246 transitions. [2024-11-09 07:15:52,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-09 07:15:52,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:52,909 INFO L215 NwaCegarLoop]: trace histogram [20, 13, 13, 13, 13, 13, 13, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:52,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:15:52,910 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:15:52,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:52,910 INFO L85 PathProgramCache]: Analyzing trace with hash 992631178, now seen corresponding path program 1 times [2024-11-09 07:15:52,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:15:52,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097928330] [2024-11-09 07:15:52,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:52,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:02,887 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2024-11-09 07:16:02,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:02,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097928330] [2024-11-09 07:16:02,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097928330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:02,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:02,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:16:02,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888267088] [2024-11-09 07:16:02,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:02,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:02,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:02,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:02,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:02,891 INFO L87 Difference]: Start difference. First operand 24209 states and 34246 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-09 07:16:04,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:07,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:12,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:12,810 INFO L93 Difference]: Finished difference Result 66631 states and 94070 transitions. [2024-11-09 07:16:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:12,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 281 [2024-11-09 07:16:12,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:13,164 INFO L225 Difference]: With dead ends: 66631 [2024-11-09 07:16:13,165 INFO L226 Difference]: Without dead ends: 42445 [2024-11-09 07:16:13,267 INFO L431 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 [2024-11-09 07:16:13,267 INFO L432 NwaCegarLoop]: 1772 mSDtfsCounter, 1377 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:13,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 3033 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 615 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2024-11-09 07:16:13,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42445 states. [2024-11-09 07:16:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42445 to 42389. [2024-11-09 07:16:16,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42389 states, 25729 states have (on average 1.2712503400831747) internal successors, (32708), 26791 states have internal predecessors, (32708), 13296 states have call successors, (13296), 3381 states have call predecessors, (13296), 3363 states have return successors, (13549), 12703 states have call predecessors, (13549), 13292 states have call successors, (13549) [2024-11-09 07:16:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42389 states to 42389 states and 59553 transitions. [2024-11-09 07:16:16,714 INFO L78 Accepts]: Start accepts. Automaton has 42389 states and 59553 transitions. Word has length 281 [2024-11-09 07:16:16,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:16,715 INFO L471 AbstractCegarLoop]: Abstraction has 42389 states and 59553 transitions. [2024-11-09 07:16:16,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-11-09 07:16:16,715 INFO L276 IsEmpty]: Start isEmpty. Operand 42389 states and 59553 transitions. [2024-11-09 07:16:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-09 07:16:16,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:16,817 INFO L215 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 7, 7, 5, 5, 5, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:16,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:16:16,817 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:16,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:16,818 INFO L85 PathProgramCache]: Analyzing trace with hash -537508045, now seen corresponding path program 1 times [2024-11-09 07:16:16,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:16,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650478817] [2024-11-09 07:16:16,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:16,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:27,212 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-09 07:16:27,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:27,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650478817] [2024-11-09 07:16:27,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650478817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:27,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:27,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:16:27,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041579942] [2024-11-09 07:16:27,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:27,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:27,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:27,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:27,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:27,217 INFO L87 Difference]: Start difference. First operand 42389 states and 59553 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-09 07:16:29,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:31,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:38,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:38,512 INFO L93 Difference]: Finished difference Result 104041 states and 146307 transitions. [2024-11-09 07:16:38,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:38,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 306 [2024-11-09 07:16:38,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:39,349 INFO L225 Difference]: With dead ends: 104041 [2024-11-09 07:16:39,349 INFO L226 Difference]: Without dead ends: 62125 [2024-11-09 07:16:39,533 INFO L431 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 [2024-11-09 07:16:39,537 INFO L432 NwaCegarLoop]: 2466 mSDtfsCounter, 1420 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:39,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 3726 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 794 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2024-11-09 07:16:39,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62125 states. [2024-11-09 07:16:42,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62125 to 62069. [2024-11-09 07:16:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62069 states, 37715 states have (on average 1.2699986742675329) internal successors, (47898), 39313 states have internal predecessors, (47898), 19418 states have call successors, (19418), 4961 states have call predecessors, (19418), 4935 states have return successors, (19786), 18521 states have call predecessors, (19786), 19414 states have call successors, (19786) [2024-11-09 07:16:43,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62069 states to 62069 states and 87102 transitions. [2024-11-09 07:16:43,813 INFO L78 Accepts]: Start accepts. Automaton has 62069 states and 87102 transitions. Word has length 306 [2024-11-09 07:16:43,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:43,814 INFO L471 AbstractCegarLoop]: Abstraction has 62069 states and 87102 transitions. [2024-11-09 07:16:43,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-09 07:16:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 62069 states and 87102 transitions. [2024-11-09 07:16:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-11-09 07:16:43,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:43,941 INFO L215 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 13, 13, 13, 7, 7, 4, 4, 4, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:43,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:16:43,942 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:43,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:43,942 INFO L85 PathProgramCache]: Analyzing trace with hash -296737895, now seen corresponding path program 1 times [2024-11-09 07:16:43,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:43,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103737052] [2024-11-09 07:16:43,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:43,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2024-11-09 07:16:55,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:55,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103737052] [2024-11-09 07:16:55,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103737052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:55,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911744180] [2024-11-09 07:16:55,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:55,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:55,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:55,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:55,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5de2e0c-b201-4d6e-8be2-dce949c1e6cf/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:17:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:05,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 4274 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:17:05,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:06,685 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2024-11-09 07:17:06,685 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:06,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911744180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:06,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:17:06,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 07:17:06,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841814267] [2024-11-09 07:17:06,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:06,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:06,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:06,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:06,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:17:06,689 INFO L87 Difference]: Start difference. First operand 62069 states and 87102 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-09 07:17:08,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:10,776 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 [] [2024-11-09 07:17:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:19,682 INFO L93 Difference]: Finished difference Result 182606 states and 256345 transitions. [2024-11-09 07:17:19,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:19,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 298 [2024-11-09 07:17:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:21,034 INFO L225 Difference]: With dead ends: 182606 [2024-11-09 07:17:21,035 INFO L226 Difference]: Without dead ends: 121010 [2024-11-09 07:17:21,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:17:21,294 INFO L432 NwaCegarLoop]: 1497 mSDtfsCounter, 1395 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:21,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 2738 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 606 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2024-11-09 07:17:21,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121010 states.