./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/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_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/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_d1a342d3-cf73-417f-8cea-4490b3006aab/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 4c74f17ad80d26d3384a467dad9313e9d7d1be91817d15d75e196d6ef78bc5b2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:15:19,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:15:19,624 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 01:15:19,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:15:19,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:15:19,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:15:19,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:15:19,662 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:15:19,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:15:19,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:15:19,664 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:15:19,664 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:15:19,665 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:15:19,665 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:15:19,666 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:15:19,666 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:15:19,667 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:15:19,667 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:15:19,668 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:15:19,668 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:15:19,669 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:15:19,672 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:15:19,673 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:15:19,674 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:15:19,674 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:15:19,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:15:19,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:15:19,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:15:19,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:15:19,698 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:15:19,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:15:19,699 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:15:19,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:15:19,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:15:19,700 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:15:19,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:15:19,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:15:19,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:15:19,706 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:15:19,707 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:15:19,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:15:19,708 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:15:19,708 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:15:19,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:15:19,709 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_d1a342d3-cf73-417f-8cea-4490b3006aab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c74f17ad80d26d3384a467dad9313e9d7d1be91817d15d75e196d6ef78bc5b2 [2024-11-09 01:15:20,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:15:20,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:15:20,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:15:20,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:15:20,074 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:15:20,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 01:15:22,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:15:23,447 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:15:23,449 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i [2024-11-09 01:15:23,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/data/067a83892/a08743792c1042c3865bf5a51b13025e/FLAGdd50c2a2c [2024-11-09 01:15:23,814 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/data/067a83892/a08743792c1042c3865bf5a51b13025e [2024-11-09 01:15:23,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:15:23,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:15:23,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:15:23,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:15:23,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:15:23,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:15:23" (1/1) ... [2024-11-09 01:15:23,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b94ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:23, skipping insertion in model container [2024-11-09 01:15:23,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:15:23" (1/1) ... [2024-11-09 01:15:24,032 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:15:27,307 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_d1a342d3-cf73-417f-8cea-4490b3006aab/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i[315625,315638] [2024-11-09 01:15:27,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:15:27,449 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:15:27,561 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"); [3921] [2024-11-09 01:15:27,563 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)); [3928] [2024-11-09 01:15:27,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4175] [2024-11-09 01:15:27,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4182] [2024-11-09 01:15:27,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6885] [2024-11-09 01:15:27,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6888] [2024-11-09 01:15:27,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6918] [2024-11-09 01:15:27,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6939] [2024-11-09 01:15:27,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6965] [2024-11-09 01:15:27,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7072] [2024-11-09 01:15:27,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7271] [2024-11-09 01:15:27,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7400] [2024-11-09 01:15:27,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7422] [2024-11-09 01:15:27,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7472] [2024-11-09 01:15:27,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7612] [2024-11-09 01:15:27,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7729] [2024-11-09 01:15:27,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7845] [2024-11-09 01:15:28,085 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_d1a342d3-cf73-417f-8cea-4490b3006aab/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i[315625,315638] [2024-11-09 01:15:28,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:15:28,253 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:15:28,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28 WrapperNode [2024-11-09 01:15:28,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:15:28,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:15:28,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:15:28,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:15:28,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:28,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:28,750 INFO L138 Inliner]: procedures = 260, calls = 4523, calls flagged for inlining = 105, calls inlined = 100, statements flattened = 10194 [2024-11-09 01:15:28,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:15:28,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:15:28,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:15:28,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:15:28,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:28,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:28,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:28,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:29,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:29,341 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:29,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:29,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:29,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:15:29,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:15:29,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:15:29,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:15:29,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (1/1) ... [2024-11-09 01:15:29,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:15:29,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:15:29,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:15:29,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1a342d3-cf73-417f-8cea-4490b3006aab/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:15:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2024-11-09 01:15:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2024-11-09 01:15:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-09 01:15:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-09 01:15:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2024-11-09 01:15:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2024-11-09 01:15:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2024-11-09 01:15:29,574 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2024-11-09 01:15:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 01:15:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 01:15:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 01:15:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 01:15:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 01:15:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2024-11-09 01:15:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2024-11-09 01:15:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2024-11-09 01:15:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2024-11-09 01:15:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-09 01:15:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-09 01:15:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 01:15:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 01:15:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2024-11-09 01:15:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2024-11-09 01:15:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2024-11-09 01:15:29,581 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2024-11-09 01:15:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2024-11-09 01:15:29,582 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2024-11-09 01:15:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2024-11-09 01:15:29,583 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2024-11-09 01:15:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2024-11-09 01:15:29,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2024-11-09 01:15:29,584 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2024-11-09 01:15:29,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2024-11-09 01:15:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 01:15:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 01:15:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 01:15:29,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 01:15:29,585 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2024-11-09 01:15:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2024-11-09 01:15:29,586 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2024-11-09 01:15:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2024-11-09 01:15:29,587 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2024-11-09 01:15:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2024-11-09 01:15:29,587 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-09 01:15:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-09 01:15:29,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 01:15:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 01:15:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2024-11-09 01:15:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2024-11-09 01:15:29,590 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:15:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:15:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2024-11-09 01:15:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2024-11-09 01:15:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2024-11-09 01:15:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2024-11-09 01:15:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2024-11-09 01:15:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2024-11-09 01:15:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2024-11-09 01:15:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2024-11-09 01:15:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:15:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2024-11-09 01:15:29,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2024-11-09 01:15:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-09 01:15:29,593 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-09 01:15:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:15:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2024-11-09 01:15:29,593 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2024-11-09 01:15:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-09 01:15:29,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-09 01:15:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2024-11-09 01:15:29,594 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2024-11-09 01:15:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2024-11-09 01:15:29,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2024-11-09 01:15:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 01:15:29,595 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 01:15:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2024-11-09 01:15:29,595 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2024-11-09 01:15:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure update_done_list [2024-11-09 01:15:29,595 INFO L138 BoogieDeclarations]: Found implementation of procedure update_done_list [2024-11-09 01:15:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2024-11-09 01:15:29,599 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2024-11-09 01:15:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:15:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2024-11-09 01:15:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2024-11-09 01:15:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2024-11-09 01:15:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2024-11-09 01:15:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2024-11-09 01:15:29,601 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2024-11-09 01:15:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2024-11-09 01:15:29,601 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2024-11-09 01:15:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 01:15:29,602 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 01:15:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-09 01:15:29,603 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-09 01:15:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2024-11-09 01:15:29,603 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2024-11-09 01:15:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 01:15:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 01:15:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2024-11-09 01:15:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2024-11-09 01:15:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 01:15:29,606 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 01:15:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start [2024-11-09 01:15:29,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start [2024-11-09 01:15:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2024-11-09 01:15:29,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2024-11-09 01:15:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_setup [2024-11-09 01:15:29,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_setup [2024-11-09 01:15:29,607 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2024-11-09 01:15:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2024-11-09 01:15:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-09 01:15:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-09 01:15:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 01:15:29,608 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2024-11-09 01:15:29,608 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2024-11-09 01:15:29,609 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2024-11-09 01:15:29,609 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2024-11-09 01:15:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2024-11-09 01:15:29,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2024-11-09 01:15:29,610 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2024-11-09 01:15:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2024-11-09 01:15:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:15:29,611 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2024-11-09 01:15:29,611 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2024-11-09 01:15:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2024-11-09 01:15:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2024-11-09 01:15:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2024-11-09 01:15:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2024-11-09 01:15:29,612 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2024-11-09 01:15:29,612 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2024-11-09 01:15:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2024-11-09 01:15:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2024-11-09 01:15:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2024-11-09 01:15:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2024-11-09 01:15:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2024-11-09 01:15:29,613 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2024-11-09 01:15:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2024-11-09 01:15:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2024-11-09 01:15:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2024-11-09 01:15:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2024-11-09 01:15:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2024-11-09 01:15:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2024-11-09 01:15:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-09 01:15:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-09 01:15:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2024-11-09 01:15:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2024-11-09 01:15:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2024-11-09 01:15:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2024-11-09 01:15:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2024-11-09 01:15:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2024-11-09 01:15:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 01:15:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 01:15:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2024-11-09 01:15:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2024-11-09 01:15:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2024-11-09 01:15:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2024-11-09 01:15:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2024-11-09 01:15:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2024-11-09 01:15:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:15:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-09 01:15:29,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-09 01:15:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2024-11-09 01:15:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2024-11-09 01:15:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2024-11-09 01:15:29,623 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2024-11-09 01:15:29,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 01:15:29,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 01:15:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2024-11-09 01:15:29,624 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2024-11-09 01:15:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-09 01:15:29,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-09 01:15:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_done_list [2024-11-09 01:15:29,625 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_done_list [2024-11-09 01:15:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2024-11-09 01:15:29,626 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2024-11-09 01:15:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:15:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2024-11-09 01:15:29,627 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2024-11-09 01:15:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2024-11-09 01:15:29,627 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2024-11-09 01:15:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-09 01:15:29,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-09 01:15:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-09 01:15:29,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-09 01:15:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:15:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2024-11-09 01:15:29,629 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2024-11-09 01:15:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2024-11-09 01:15:29,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2024-11-09 01:15:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 01:15:29,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 01:15:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:15:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2024-11-09 01:15:29,630 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2024-11-09 01:15:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2024-11-09 01:15:29,630 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2024-11-09 01:15:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2024-11-09 01:15:29,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2024-11-09 01:15:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2024-11-09 01:15:29,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2024-11-09 01:15:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2024-11-09 01:15:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2024-11-09 01:15:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_work [2024-11-09 01:15:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_work [2024-11-09 01:15:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2024-11-09 01:15:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2024-11-09 01:15:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2024-11-09 01:15:29,635 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2024-11-09 01:15:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2024-11-09 01:15:29,635 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2024-11-09 01:15:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-09 01:15:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-09 01:15:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2024-11-09 01:15:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2024-11-09 01:15:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2024-11-09 01:15:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2024-11-09 01:15:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-09 01:15:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-09 01:15:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2024-11-09 01:15:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2024-11-09 01:15:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2024-11-09 01:15:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2024-11-09 01:15:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2024-11-09 01:15:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2024-11-09 01:15:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2024-11-09 01:15:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2024-11-09 01:15:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2024-11-09 01:15:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2024-11-09 01:15:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2024-11-09 01:15:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2024-11-09 01:15:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 01:15:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 01:15:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2024-11-09 01:15:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2024-11-09 01:15:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2024-11-09 01:15:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2024-11-09 01:15:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 01:15:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 01:15:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2024-11-09 01:15:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2024-11-09 01:15:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2024-11-09 01:15:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2024-11-09 01:15:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 01:15:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 01:15:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2024-11-09 01:15:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2024-11-09 01:15:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-09 01:15:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-09 01:15:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:15:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:15:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:15:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2024-11-09 01:15:29,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2024-11-09 01:15:31,070 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:15:31,075 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:15:32,096 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 01:15:48,983 INFO L? ?]: Removed 3409 outVars from TransFormulas that were not future-live. [2024-11-09 01:15:48,983 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:15:57,535 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:15:57,535 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 01:15:57,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:15:57 BoogieIcfgContainer [2024-11-09 01:15:57,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:15:57,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:15:57,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:15:57,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:15:57,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:15:23" (1/3) ... [2024-11-09 01:15:57,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661849b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:15:57, skipping insertion in model container [2024-11-09 01:15:57,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:15:28" (2/3) ... [2024-11-09 01:15:57,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661849b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:15:57, skipping insertion in model container [2024-11-09 01:15:57,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:15:57" (3/3) ... [2024-11-09 01:15:57,548 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ohci-hcd.ko-entry_point.cil.out.i [2024-11-09 01:15:57,574 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:15:57,578 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:15:57,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:15:57,811 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;@507e15df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:15:57,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:15:57,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 2545 states, 1586 states have (on average 1.3373266078184112) internal successors, (2121), 1663 states have internal predecessors, (2121), 842 states have call successors, (842), 120 states have call predecessors, (842), 119 states have return successors, (835), 823 states have call predecessors, (835), 835 states have call successors, (835) [2024-11-09 01:15:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-09 01:15:57,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:15:57,861 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:15:57,862 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:15:57,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:15:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash 319525450, now seen corresponding path program 1 times [2024-11-09 01:15:57,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:15:57,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193094268] [2024-11-09 01:15:57,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:15:57,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:16:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:16:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-09 01:16:10,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:16:10,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193094268] [2024-11-09 01:16:10,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193094268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:16:10,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:16:10,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:16:10,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022353650] [2024-11-09 01:16:10,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:16:10,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:16:10,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:16:10,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:16:10,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:16:10,760 INFO L87 Difference]: Start difference. First operand has 2545 states, 1586 states have (on average 1.3373266078184112) internal successors, (2121), 1663 states have internal predecessors, (2121), 842 states have call successors, (842), 120 states have call predecessors, (842), 119 states have return successors, (835), 823 states have call predecessors, (835), 835 states have call successors, (835) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-09 01:16:13,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:16:22,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:16:22,620 INFO L93 Difference]: Finished difference Result 7476 states and 11262 transitions. [2024-11-09 01:16:22,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:16:22,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 270 [2024-11-09 01:16:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:16:22,723 INFO L225 Difference]: With dead ends: 7476 [2024-11-09 01:16:22,724 INFO L226 Difference]: Without dead ends: 4961 [2024-11-09 01:16:22,757 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 01:16:22,762 INFO L432 NwaCegarLoop]: 3393 mSDtfsCounter, 3728 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3728 SdHoareTripleChecker+Valid, 6698 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:16:22,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3728 Valid, 6698 Invalid, 767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 764 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2024-11-09 01:16:22,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4961 states. [2024-11-09 01:16:23,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4961 to 4957. [2024-11-09 01:16:23,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4957 states, 3096 states have (on average 1.333656330749354) internal successors, (4129), 3233 states have internal predecessors, (4129), 1625 states have call successors, (1625), 236 states have call predecessors, (1625), 235 states have return successors, (1624), 1599 states have call predecessors, (1624), 1624 states have call successors, (1624) [2024-11-09 01:16:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4957 states to 4957 states and 7378 transitions. [2024-11-09 01:16:23,336 INFO L78 Accepts]: Start accepts. Automaton has 4957 states and 7378 transitions. Word has length 270 [2024-11-09 01:16:23,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:16:23,341 INFO L471 AbstractCegarLoop]: Abstraction has 4957 states and 7378 transitions. [2024-11-09 01:16:23,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-09 01:16:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 4957 states and 7378 transitions. [2024-11-09 01:16:23,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-09 01:16:23,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:16:23,358 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:23,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:16:23,359 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:16:23,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:16:23,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2098453994, now seen corresponding path program 1 times [2024-11-09 01:16:23,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:16:23,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885818307] [2024-11-09 01:16:23,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:16:23,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:16:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:16:35,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-09 01:16:35,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:16:35,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885818307] [2024-11-09 01:16:35,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885818307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:16:35,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:16:35,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:16:35,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018865851] [2024-11-09 01:16:35,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:16:35,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:16:35,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:16:35,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:16:35,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:16:35,355 INFO L87 Difference]: Start difference. First operand 4957 states and 7378 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-09 01:16:37,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:16:48,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:16:48,811 INFO L93 Difference]: Finished difference Result 14714 states and 21897 transitions. [2024-11-09 01:16:48,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:16:48,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 273 [2024-11-09 01:16:48,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:16:48,922 INFO L225 Difference]: With dead ends: 14714 [2024-11-09 01:16:48,923 INFO L226 Difference]: Without dead ends: 9812 [2024-11-09 01:16:48,962 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 01:16:48,964 INFO L432 NwaCegarLoop]: 3401 mSDtfsCounter, 3698 mSDsluCounter, 3283 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3698 SdHoareTripleChecker+Valid, 6684 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:16:48,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3698 Valid, 6684 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 763 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2024-11-09 01:16:48,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9812 states. [2024-11-09 01:16:49,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9812 to 9807. [2024-11-09 01:16:49,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9807 states, 6128 states have (on average 1.3342036553524803) internal successors, (8176), 6403 states have internal predecessors, (8176), 3209 states have call successors, (3209), 470 states have call predecessors, (3209), 469 states have return successors, (3208), 3157 states have call predecessors, (3208), 3208 states have call successors, (3208) [2024-11-09 01:16:49,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9807 states to 9807 states and 14593 transitions. [2024-11-09 01:16:49,927 INFO L78 Accepts]: Start accepts. Automaton has 9807 states and 14593 transitions. Word has length 273 [2024-11-09 01:16:49,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:16:49,929 INFO L471 AbstractCegarLoop]: Abstraction has 9807 states and 14593 transitions. [2024-11-09 01:16:49,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-09 01:16:49,930 INFO L276 IsEmpty]: Start isEmpty. Operand 9807 states and 14593 transitions. [2024-11-09 01:16:49,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-09 01:16:49,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:16:49,938 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:49,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:16:49,939 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:16:49,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:16:49,939 INFO L85 PathProgramCache]: Analyzing trace with hash 909354716, now seen corresponding path program 1 times [2024-11-09 01:16:49,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:16:49,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956610038] [2024-11-09 01:16:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:16:49,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:16:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:00,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-09 01:17:00,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:17:00,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956610038] [2024-11-09 01:17:00,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956610038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:17:00,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:17:00,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:17:00,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911405693] [2024-11-09 01:17:00,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:17:00,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:17:00,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:17:00,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:17:00,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:17:00,144 INFO L87 Difference]: Start difference. First operand 9807 states and 14593 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-09 01:17:02,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:17:11,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:17:11,477 INFO L93 Difference]: Finished difference Result 29027 states and 43193 transitions. [2024-11-09 01:17:11,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:17:11,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 275 [2024-11-09 01:17:11,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:17:11,709 INFO L225 Difference]: With dead ends: 29027 [2024-11-09 01:17:11,710 INFO L226 Difference]: Without dead ends: 19275 [2024-11-09 01:17:11,782 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 01:17:11,783 INFO L432 NwaCegarLoop]: 3624 mSDtfsCounter, 3684 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3684 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:17:11,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3684 Valid, 6906 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 791 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2024-11-09 01:17:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19275 states. [2024-11-09 01:17:13,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19275 to 19272. [2024-11-09 01:17:13,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19272 states, 12051 states have (on average 1.3347440046469172) internal successors, (16085), 12595 states have internal predecessors, (16085), 6295 states have call successors, (6295), 926 states have call predecessors, (6295), 925 states have return successors, (6294), 6195 states have call predecessors, (6294), 6294 states have call successors, (6294) [2024-11-09 01:17:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19272 states to 19272 states and 28674 transitions. [2024-11-09 01:17:13,308 INFO L78 Accepts]: Start accepts. Automaton has 19272 states and 28674 transitions. Word has length 275 [2024-11-09 01:17:13,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:17:13,309 INFO L471 AbstractCegarLoop]: Abstraction has 19272 states and 28674 transitions. [2024-11-09 01:17:13,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-09 01:17:13,310 INFO L276 IsEmpty]: Start isEmpty. Operand 19272 states and 28674 transitions. [2024-11-09 01:17:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-09 01:17:13,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:17:13,325 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:13,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:17:13,325 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:17:13,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:17:13,328 INFO L85 PathProgramCache]: Analyzing trace with hash 648081372, now seen corresponding path program 1 times [2024-11-09 01:17:13,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:17:13,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169756652] [2024-11-09 01:17:13,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:13,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:17:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:23,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-09 01:17:23,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:17:23,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169756652] [2024-11-09 01:17:23,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169756652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:17:23,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:17:23,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:17:23,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849816593] [2024-11-09 01:17:23,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:17:23,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:17:23,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:17:23,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:17:23,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:17:23,550 INFO L87 Difference]: Start difference. First operand 19272 states and 28674 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-09 01:17:25,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:17:35,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:17:35,744 INFO L93 Difference]: Finished difference Result 51425 states and 76009 transitions. [2024-11-09 01:17:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:17:35,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 289 [2024-11-09 01:17:35,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:17:35,997 INFO L225 Difference]: With dead ends: 51425 [2024-11-09 01:17:35,997 INFO L226 Difference]: Without dead ends: 32216 [2024-11-09 01:17:36,116 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 01:17:36,117 INFO L432 NwaCegarLoop]: 4340 mSDtfsCounter, 2627 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 7524 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:17:36,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2627 Valid, 7524 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 968 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2024-11-09 01:17:36,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32216 states. [2024-11-09 01:17:38,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32216 to 32209. [2024-11-09 01:17:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32209 states, 20061 states have (on average 1.3199740790588705) internal successors, (26480), 20914 states have internal predecessors, (26480), 10465 states have call successors, (10465), 1683 states have call predecessors, (10465), 1682 states have return successors, (10464), 10321 states have call predecessors, (10464), 10464 states have call successors, (10464) [2024-11-09 01:17:39,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32209 states to 32209 states and 47409 transitions. [2024-11-09 01:17:39,166 INFO L78 Accepts]: Start accepts. Automaton has 32209 states and 47409 transitions. Word has length 289 [2024-11-09 01:17:39,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:17:39,170 INFO L471 AbstractCegarLoop]: Abstraction has 32209 states and 47409 transitions. [2024-11-09 01:17:39,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-09 01:17:39,171 INFO L276 IsEmpty]: Start isEmpty. Operand 32209 states and 47409 transitions. [2024-11-09 01:17:39,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-09 01:17:39,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:17:39,185 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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 01:17:39,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:17:39,186 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:17:39,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:17:39,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2062970206, now seen corresponding path program 1 times [2024-11-09 01:17:39,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:17:39,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540782872] [2024-11-09 01:17:39,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:17:39,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:17:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:17:50,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2200 trivial. 0 not checked. [2024-11-09 01:17:50,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:17:50,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540782872] [2024-11-09 01:17:50,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540782872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:17:50,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:17:50,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:17:50,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141641803] [2024-11-09 01:17:50,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:17:50,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:17:50,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:17:50,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:17:50,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:17:50,397 INFO L87 Difference]: Start difference. First operand 32209 states and 47409 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-09 01:17:52,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:17:54,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:17:57,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:18:09,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:18:09,804 INFO L93 Difference]: Finished difference Result 64400 states and 94791 transitions. [2024-11-09 01:18:09,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:18:09,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 378 [2024-11-09 01:18:09,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:18:10,070 INFO L225 Difference]: With dead ends: 64400 [2024-11-09 01:18:10,070 INFO L226 Difference]: Without dead ends: 32209 [2024-11-09 01:18:10,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:18:10,226 INFO L432 NwaCegarLoop]: 3370 mSDtfsCounter, 1 mSDsluCounter, 6735 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10105 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:18:10,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10105 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1138 Invalid, 3 Unknown, 0 Unchecked, 18.1s Time] [2024-11-09 01:18:10,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32209 states. [2024-11-09 01:18:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32209 to 32209. [2024-11-09 01:18:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32209 states, 20061 states have (on average 1.3191765116394996) internal successors, (26464), 20914 states have internal predecessors, (26464), 10465 states have call successors, (10465), 1683 states have call predecessors, (10465), 1682 states have return successors, (10464), 10321 states have call predecessors, (10464), 10464 states have call successors, (10464) [2024-11-09 01:18:12,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32209 states to 32209 states and 47393 transitions. [2024-11-09 01:18:13,006 INFO L78 Accepts]: Start accepts. Automaton has 32209 states and 47393 transitions. Word has length 378 [2024-11-09 01:18:13,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:18:13,009 INFO L471 AbstractCegarLoop]: Abstraction has 32209 states and 47393 transitions. [2024-11-09 01:18:13,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-09 01:18:13,009 INFO L276 IsEmpty]: Start isEmpty. Operand 32209 states and 47393 transitions. [2024-11-09 01:18:13,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-09 01:18:13,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:18:13,023 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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] [2024-11-09 01:18:13,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:18:13,023 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:18:13,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:18:13,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1523832247, now seen corresponding path program 1 times [2024-11-09 01:18:13,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:18:13,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011533451] [2024-11-09 01:18:13,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:18:13,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:18:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:18:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-09 01:18:25,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:18:25,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011533451] [2024-11-09 01:18:25,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011533451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:18:25,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:18:25,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:18:25,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696706406] [2024-11-09 01:18:25,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:18:25,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:18:25,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:18:25,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:18:25,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:18:25,219 INFO L87 Difference]: Start difference. First operand 32209 states and 47393 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-09 01:18:27,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:18:29,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:18:42,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:18:42,928 INFO L93 Difference]: Finished difference Result 37997 states and 55094 transitions. [2024-11-09 01:18:42,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:18:42,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 396 [2024-11-09 01:18:42,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:18:43,280 INFO L225 Difference]: With dead ends: 37997 [2024-11-09 01:18:43,280 INFO L226 Difference]: Without dead ends: 37994 [2024-11-09 01:18:43,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:18:43,323 INFO L432 NwaCegarLoop]: 3821 mSDtfsCounter, 1911 mSDsluCounter, 5849 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 9670 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:18:43,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 9670 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1158 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2024-11-09 01:18:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37994 states. [2024-11-09 01:18:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37994 to 37775. [2024-11-09 01:18:45,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37775 states, 23332 states have (on average 1.3042602434424824) internal successors, (30431), 24231 states have internal predecessors, (30431), 12156 states have call successors, (12156), 2279 states have call predecessors, (12156), 2286 states have return successors, (12179), 11982 states have call predecessors, (12179), 12155 states have call successors, (12179) [2024-11-09 01:18:46,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37775 states to 37775 states and 54766 transitions. [2024-11-09 01:18:46,518 INFO L78 Accepts]: Start accepts. Automaton has 37775 states and 54766 transitions. Word has length 396 [2024-11-09 01:18:46,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:18:46,519 INFO L471 AbstractCegarLoop]: Abstraction has 37775 states and 54766 transitions. [2024-11-09 01:18:46,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-09 01:18:46,520 INFO L276 IsEmpty]: Start isEmpty. Operand 37775 states and 54766 transitions. [2024-11-09 01:18:46,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-11-09 01:18:46,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:18:46,552 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:18:46,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 01:18:46,552 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:18:46,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:18:46,553 INFO L85 PathProgramCache]: Analyzing trace with hash 945155745, now seen corresponding path program 1 times [2024-11-09 01:18:46,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:18:46,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83695345] [2024-11-09 01:18:46,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:18:46,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:18:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:18:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2200 trivial. 0 not checked. [2024-11-09 01:18:58,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:18:58,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83695345] [2024-11-09 01:18:58,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83695345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:18:58,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:18:58,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:18:58,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871891555] [2024-11-09 01:18:58,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:18:58,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:18:58,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:18:58,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:18:58,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:18:58,143 INFO L87 Difference]: Start difference. First operand 37775 states and 54766 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-09 01:19:00,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:19:02,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:19:16,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:19:16,184 INFO L93 Difference]: Finished difference Result 97399 states and 141442 transitions. [2024-11-09 01:19:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:19:16,185 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 417 [2024-11-09 01:19:16,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:19:16,653 INFO L225 Difference]: With dead ends: 97399 [2024-11-09 01:19:16,653 INFO L226 Difference]: Without dead ends: 59690 [2024-11-09 01:19:16,859 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 01:19:16,862 INFO L432 NwaCegarLoop]: 4329 mSDtfsCounter, 3510 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3510 SdHoareTripleChecker+Valid, 7549 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:19:16,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3510 Valid, 7549 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1028 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time] [2024-11-09 01:19:16,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59690 states. [2024-11-09 01:19:20,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59690 to 59683. [2024-11-09 01:19:20,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59683 states, 36992 states have (on average 1.3037413494809689) internal successors, (48228), 38467 states have internal predecessors, (48228), 19091 states have call successors, (19091), 3584 states have call predecessors, (19091), 3599 states have return successors, (19138), 18801 states have call predecessors, (19138), 19090 states have call successors, (19138) [2024-11-09 01:19:21,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59683 states to 59683 states and 86457 transitions. [2024-11-09 01:19:21,580 INFO L78 Accepts]: Start accepts. Automaton has 59683 states and 86457 transitions. Word has length 417 [2024-11-09 01:19:21,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:19:21,582 INFO L471 AbstractCegarLoop]: Abstraction has 59683 states and 86457 transitions. [2024-11-09 01:19:21,582 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, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-09 01:19:21,582 INFO L276 IsEmpty]: Start isEmpty. Operand 59683 states and 86457 transitions. [2024-11-09 01:19:21,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-09 01:19:21,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:19:21,612 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:19:21,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 01:19:21,613 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:19:21,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:19:21,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1344766333, now seen corresponding path program 1 times [2024-11-09 01:19:21,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:19:21,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5455060] [2024-11-09 01:19:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:19:21,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:19:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:19:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2200 trivial. 0 not checked. [2024-11-09 01:19:37,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:19:37,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5455060] [2024-11-09 01:19:37,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5455060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:19:37,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:19:37,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 01:19:37,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106326614] [2024-11-09 01:19:37,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:19:37,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:19:37,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:19:37,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:19:37,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:19:37,159 INFO L87 Difference]: Start difference. First operand 59683 states and 86457 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-09 01:19:39,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:19:41,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:19:43,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:19:45,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:19:48,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []