./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:22:59,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:22:59,424 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:22:59,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:22:59,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:22:59,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:22:59,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:22:59,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:22:59,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:22:59,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:22:59,490 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:22:59,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:22:59,491 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:22:59,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:22:59,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:22:59,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:22:59,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:22:59,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:22:59,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:22:59,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:22:59,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:22:59,496 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:22:59,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:22:59,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:22:59,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:22:59,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:59,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:22:59,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:22:59,500 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:22:59,501 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:22:59,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:22:59,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:22:59,503 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:22:59,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:22:59,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:22:59,503 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:22:59,504 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b [2023-11-12 02:22:59,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:22:59,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:22:59,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:22:59,857 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:22:59,858 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:22:59,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2023-11-12 02:23:02,913 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:23:03,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:23:03,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2023-11-12 02:23:03,602 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/data/fe15e163a/77a606b615ef41bbaff59893943ba1df/FLAGe12818959 [2023-11-12 02:23:03,620 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/data/fe15e163a/77a606b615ef41bbaff59893943ba1df [2023-11-12 02:23:03,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:23:03,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:23:03,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:03,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:23:03,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:23:03,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:03" (1/1) ... [2023-11-12 02:23:03,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b694bd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:03, skipping insertion in model container [2023-11-12 02:23:03,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:03" (1/1) ... [2023-11-12 02:23:03,787 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:23:04,810 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2023-11-12 02:23:05,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:05,843 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:23:05,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3258] [2023-11-12 02:23:05,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3265] [2023-11-12 02:23:05,932 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [3272] [2023-11-12 02:23:05,933 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3305] [2023-11-12 02:23:05,933 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3308] [2023-11-12 02:23:05,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3311] [2023-11-12 02:23:05,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3314] [2023-11-12 02:23:05,947 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2023-11-12 02:23:05,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4083] [2023-11-12 02:23:05,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4087] [2023-11-12 02:23:05,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [4110] [2023-11-12 02:23:05,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [4115] [2023-11-12 02:23:05,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [4120] [2023-11-12 02:23:05,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [4125] [2023-11-12 02:23:06,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4584] [2023-11-12 02:23:06,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:06,271 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:23:06,271 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:23:06,278 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:23:06,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06 WrapperNode [2023-11-12 02:23:06,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:06,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:06,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:23:06,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:23:06,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,585 INFO L138 Inliner]: procedures = 256, calls = 2522, calls flagged for inlining = 117, calls inlined = 96, statements flattened = 4208 [2023-11-12 02:23:06,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:06,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:23:06,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:23:06,587 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:23:06,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,821 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:23:06,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:23:06,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:23:06,853 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:23:06,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (1/1) ... [2023-11-12 02:23:06,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:06,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:06,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:23:06,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_352307b4-cfe8-4e52-b496-998121c321fc/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:23:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-12 02:23:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-12 02:23:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-12 02:23:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-12 02:23:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-12 02:23:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-12 02:23:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-12 02:23:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:23:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:23:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:23:06,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:23:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-11-12 02:23:06,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-11-12 02:23:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-12 02:23:06,999 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-12 02:23:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-12 02:23:06,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-12 02:23:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:23:07,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:23:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2023-11-12 02:23:07,001 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2023-11-12 02:23:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-12 02:23:07,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-12 02:23:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-12 02:23:07,004 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-12 02:23:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:23:07,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:23:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:23:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:23:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2023-11-12 02:23:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2023-11-12 02:23:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-11-12 02:23:07,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-11-12 02:23:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-12 02:23:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-12 02:23:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:23:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:23:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 02:23:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 02:23:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 02:23:07,006 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 02:23:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2023-11-12 02:23:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2023-11-12 02:23:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:23:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-12 02:23:07,007 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-12 02:23:07,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:23:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-11-12 02:23:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-11-12 02:23:07,008 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-12 02:23:07,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-12 02:23:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:23:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:23:07,009 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:23:07,010 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:23:07,010 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:23:07,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:23:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:23:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:23:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 02:23:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 02:23:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-12 02:23:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-12 02:23:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-11-12 02:23:07,013 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-11-12 02:23:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-12 02:23:07,013 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-12 02:23:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-12 02:23:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-12 02:23:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:23:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 02:23:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 02:23:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-12 02:23:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-12 02:23:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-12 02:23:07,015 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-12 02:23:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-12 02:23:07,015 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-12 02:23:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:23:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 02:23:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 02:23:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-11-12 02:23:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-11-12 02:23:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-12 02:23:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-12 02:23:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:23:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-12 02:23:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-12 02:23:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-12 02:23:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-12 02:23:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 02:23:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 02:23:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2023-11-12 02:23:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2023-11-12 02:23:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-12 02:23:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-12 02:23:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-12 02:23:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-12 02:23:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-12 02:23:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-12 02:23:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:23:07,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:23:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:23:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-11-12 02:23:07,020 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-11-12 02:23:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-12 02:23:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-12 02:23:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-11-12 02:23:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-11-12 02:23:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:23:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:23:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2023-11-12 02:23:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2023-11-12 02:23:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:23:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-12 02:23:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-12 02:23:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-11-12 02:23:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-11-12 02:23:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-12 02:23:07,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-12 02:23:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-12 02:23:07,024 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-12 02:23:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:23:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2023-11-12 02:23:07,026 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2023-11-12 02:23:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:23:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-12 02:23:07,027 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-12 02:23:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 02:23:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-12 02:23:07,027 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-12 02:23:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2023-11-12 02:23:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2023-11-12 02:23:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-11-12 02:23:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-11-12 02:23:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-12 02:23:07,028 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-12 02:23:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2023-11-12 02:23:07,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2023-11-12 02:23:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-12 02:23:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-12 02:23:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2023-11-12 02:23:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2023-11-12 02:23:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2023-11-12 02:23:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2023-11-12 02:23:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-12 02:23:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-12 02:23:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:23:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-12 02:23:07,043 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-12 02:23:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:23:07,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:23:07,658 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:23:07,663 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:23:08,363 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:23:15,546 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:23:15,573 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:23:15,573 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:23:15,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:15 BoogieIcfgContainer [2023-11-12 02:23:15,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:23:15,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:23:15,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:23:15,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:23:15,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:23:03" (1/3) ... [2023-11-12 02:23:15,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dc8603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:15, skipping insertion in model container [2023-11-12 02:23:15,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:06" (2/3) ... [2023-11-12 02:23:15,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dc8603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:15, skipping insertion in model container [2023-11-12 02:23:15,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:15" (3/3) ... [2023-11-12 02:23:15,588 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2023-11-12 02:23:15,608 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:23:15,609 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:23:15,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:23:15,698 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@49c8b624, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:23:15,699 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:23:15,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 1301 states, 882 states have (on average 1.3333333333333333) internal successors, (1176), 904 states have internal predecessors, (1176), 351 states have call successors, (351), 67 states have call predecessors, (351), 66 states have return successors, (344), 343 states have call predecessors, (344), 344 states have call successors, (344) [2023-11-12 02:23:15,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-12 02:23:15,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:15,799 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 02:23:15,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:15,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:15,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1957146618, now seen corresponding path program 1 times [2023-11-12 02:23:15,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:15,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379417090] [2023-11-12 02:23:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:15,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:23:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:23:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:23:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:23:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-12 02:23:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:23:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:23:16,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:16,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379417090] [2023-11-12 02:23:16,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379417090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:16,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:16,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:16,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015931769] [2023-11-12 02:23:16,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:16,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:16,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:16,947 INFO L87 Difference]: Start difference. First operand has 1301 states, 882 states have (on average 1.3333333333333333) internal successors, (1176), 904 states have internal predecessors, (1176), 351 states have call successors, (351), 67 states have call predecessors, (351), 66 states have return successors, (344), 343 states have call predecessors, (344), 344 states have call successors, (344) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:23:19,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:23:26,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:26,228 INFO L93 Difference]: Finished difference Result 3871 states and 5820 transitions. [2023-11-12 02:23:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:23:26,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 72 [2023-11-12 02:23:26,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:26,291 INFO L225 Difference]: With dead ends: 3871 [2023-11-12 02:23:26,292 INFO L226 Difference]: Without dead ends: 2550 [2023-11-12 02:23:26,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:26,312 INFO L413 NwaCegarLoop]: 1637 mSDtfsCounter, 1877 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2150 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:26,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2150 Valid, 3779 Invalid, 1994 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [719 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-11-12 02:23:26,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2023-11-12 02:23:26,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2456. [2023-11-12 02:23:26,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2456 states, 1677 states have (on average 1.3154442456768038) internal successors, (2206), 1698 states have internal predecessors, (2206), 649 states have call successors, (649), 130 states have call predecessors, (649), 129 states have return successors, (642), 639 states have call predecessors, (642), 642 states have call successors, (642) [2023-11-12 02:23:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3497 transitions. [2023-11-12 02:23:26,656 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3497 transitions. Word has length 72 [2023-11-12 02:23:26,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:26,658 INFO L495 AbstractCegarLoop]: Abstraction has 2456 states and 3497 transitions. [2023-11-12 02:23:26,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:23:26,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3497 transitions. [2023-11-12 02:23:26,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-12 02:23:26,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:26,669 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 02:23:26,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:23:26,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:26,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1872549286, now seen corresponding path program 1 times [2023-11-12 02:23:26,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:26,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841199845] [2023-11-12 02:23:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:26,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:23:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:23:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:23:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:23:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-12 02:23:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:23:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:23:27,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:27,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841199845] [2023-11-12 02:23:27,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841199845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:27,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:27,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:27,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795050556] [2023-11-12 02:23:27,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:27,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:27,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:27,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:27,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:27,086 INFO L87 Difference]: Start difference. First operand 2456 states and 3497 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:23:30,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:23:35,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:35,350 INFO L93 Difference]: Finished difference Result 6110 states and 8762 transitions. [2023-11-12 02:23:35,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:23:35,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 73 [2023-11-12 02:23:35,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:35,383 INFO L225 Difference]: With dead ends: 6110 [2023-11-12 02:23:35,383 INFO L226 Difference]: Without dead ends: 3677 [2023-11-12 02:23:35,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:35,397 INFO L413 NwaCegarLoop]: 1753 mSDtfsCounter, 1070 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 3932 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:35,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 3932 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-11-12 02:23:35,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2023-11-12 02:23:35,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 3541. [2023-11-12 02:23:35,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 2432 states have (on average 1.321546052631579) internal successors, (3214), 2453 states have internal predecessors, (3214), 907 states have call successors, (907), 202 states have call predecessors, (907), 201 states have return successors, (900), 897 states have call predecessors, (900), 900 states have call successors, (900) [2023-11-12 02:23:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 5021 transitions. [2023-11-12 02:23:35,688 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 5021 transitions. Word has length 73 [2023-11-12 02:23:35,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:35,690 INFO L495 AbstractCegarLoop]: Abstraction has 3541 states and 5021 transitions. [2023-11-12 02:23:35,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:23:35,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 5021 transitions. [2023-11-12 02:23:35,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 02:23:35,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:35,694 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 02:23:35,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:23:35,694 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:35,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:35,695 INFO L85 PathProgramCache]: Analyzing trace with hash -925527682, now seen corresponding path program 1 times [2023-11-12 02:23:35,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:35,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330706898] [2023-11-12 02:23:35,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:35,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:23:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:23:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:23:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:23:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-12 02:23:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:23:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:36,211 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:23:36,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:36,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330706898] [2023-11-12 02:23:36,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330706898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:36,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:36,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:36,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273493166] [2023-11-12 02:23:36,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:36,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:36,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:36,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:36,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:36,220 INFO L87 Difference]: Start difference. First operand 3541 states and 5021 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:23:40,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:23:45,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:45,912 INFO L93 Difference]: Finished difference Result 10732 states and 15376 transitions. [2023-11-12 02:23:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:23:45,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2023-11-12 02:23:45,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:45,972 INFO L225 Difference]: With dead ends: 10732 [2023-11-12 02:23:45,972 INFO L226 Difference]: Without dead ends: 7221 [2023-11-12 02:23:45,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:45,992 INFO L413 NwaCegarLoop]: 1737 mSDtfsCounter, 1882 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2154 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:45,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2154 Valid, 3946 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-11-12 02:23:46,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7221 states. [2023-11-12 02:23:46,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7221 to 6975. [2023-11-12 02:23:46,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 4794 states have (on average 1.3216520650813517) internal successors, (6336), 4829 states have internal predecessors, (6336), 1779 states have call successors, (1779), 402 states have call predecessors, (1779), 401 states have return successors, (1772), 1767 states have call predecessors, (1772), 1772 states have call successors, (1772) [2023-11-12 02:23:46,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 9887 transitions. [2023-11-12 02:23:46,542 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 9887 transitions. Word has length 74 [2023-11-12 02:23:46,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:46,543 INFO L495 AbstractCegarLoop]: Abstraction has 6975 states and 9887 transitions. [2023-11-12 02:23:46,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-12 02:23:46,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 9887 transitions. [2023-11-12 02:23:46,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-12 02:23:46,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:46,547 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 02:23:46,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:23:46,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:46,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:46,548 INFO L85 PathProgramCache]: Analyzing trace with hash -599539857, now seen corresponding path program 1 times [2023-11-12 02:23:46,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:46,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205620636] [2023-11-12 02:23:46,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:46,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:46,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-12 02:23:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:23:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:23:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:23:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:23:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:47,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-12 02:23:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:47,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-12 02:23:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:47,035 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-12 02:23:47,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:47,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205620636] [2023-11-12 02:23:47,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205620636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:47,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:47,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:47,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203228818] [2023-11-12 02:23:47,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:47,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:47,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:47,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:47,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:47,043 INFO L87 Difference]: Start difference. First operand 6975 states and 9887 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)