./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/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_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu --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-9bd2c7f [2023-11-19 07:45:00,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:00,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:45:01,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:01,004 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:01,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:01,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:01,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:01,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:45:01,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:45:01,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:01,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:01,055 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:01,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:01,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:45:01,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:01,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:01,059 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:45:01,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:45:01,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:45:01,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:45:01,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:01,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:01,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:01,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:45:01,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:01,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:01,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:45:01,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:45:01,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:45:01,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:45:01,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:45:01,068 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:45:01,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:45:01,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:45:01,069 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:45:01,069 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_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b [2023-11-19 07:45:01,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:01,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:01,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:01,388 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:01,389 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:01,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2023-11-19 07:45:04,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:45:05,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:45:05,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2023-11-19 07:45:05,360 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/data/4b4935737/c78f525a9e60449ea7f77d16c4252a28/FLAG97a3ca0f1 [2023-11-19 07:45:05,382 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/data/4b4935737/c78f525a9e60449ea7f77d16c4252a28 [2023-11-19 07:45:05,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:45:05,390 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:45:05,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:05,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:45:05,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:45:05,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:05" (1/1) ... [2023-11-19 07:45:05,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a601ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:05, skipping insertion in model container [2023-11-19 07:45:05,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:05" (1/1) ... [2023-11-19 07:45:05,560 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:06,601 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_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/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] [2023-11-19 07:45:07,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:07,618 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:45:07,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3258] [2023-11-19 07:45:07,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3265] [2023-11-19 07:45:07,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [3272] [2023-11-19 07:45:07,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3305] [2023-11-19 07:45:07,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3308] [2023-11-19 07:45:07,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3311] [2023-11-19 07:45:07,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3314] [2023-11-19 07:45:07,796 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_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/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] [2023-11-19 07:45:07,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4083] [2023-11-19 07:45:07,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4087] [2023-11-19 07:45:07,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [4110] [2023-11-19 07:45:07,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [4115] [2023-11-19 07:45:07,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [4120] [2023-11-19 07:45:07,878 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [4125] [2023-11-19 07:45:07,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4584] [2023-11-19 07:45:08,044 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:08,183 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:45:08,183 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:45:08,191 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:45:08,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08 WrapperNode [2023-11-19 07:45:08,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:08,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:08,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:45:08,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:45:08,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,316 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,455 INFO L138 Inliner]: procedures = 256, calls = 2522, calls flagged for inlining = 117, calls inlined = 96, statements flattened = 4208 [2023-11-19 07:45:08,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:08,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:45:08,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:45:08,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:45:08,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:45:08,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:45:08,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:45:08,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:45:08,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (1/1) ... [2023-11-19 07:45:08,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:08,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:45:08,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:45:08,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15d6e-90cc-45f4-830e-1d9b85e00e98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:45:08,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:45:08,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:45:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-19 07:45:08,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-19 07:45:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-19 07:45:08,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-19 07:45:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-19 07:45:08,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:45:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:45:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:45:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:45:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-11-19 07:45:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-11-19 07:45:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 07:45:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 07:45:08,952 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-19 07:45:08,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-19 07:45:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:45:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:45:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2023-11-19 07:45:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2023-11-19 07:45:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2023-11-19 07:45:08,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2023-11-19 07:45:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-19 07:45:08,956 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-19 07:45:08,956 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:45:08,957 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:45:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:45:08,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:45:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2023-11-19 07:45:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2023-11-19 07:45:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-11-19 07:45:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-11-19 07:45:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-19 07:45:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-19 07:45:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:45:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:45:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:45:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:45:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:45:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:45:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2023-11-19 07:45:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2023-11-19 07:45:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:45:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-19 07:45:08,960 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-19 07:45:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:45:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-11-19 07:45:08,960 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-11-19 07:45:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-19 07:45:08,961 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-19 07:45:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:45:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:45:08,961 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:45:08,962 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:45:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:45:08,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:45:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:45:08,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:45:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:45:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:45:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-19 07:45:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-19 07:45:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-11-19 07:45:08,965 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-11-19 07:45:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-19 07:45:08,966 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-19 07:45:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-19 07:45:08,966 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-19 07:45:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:45:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:45:08,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:45:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 07:45:08,967 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 07:45:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-19 07:45:08,967 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-19 07:45:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 07:45:08,968 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 07:45:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:45:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 07:45:08,969 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 07:45:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-11-19 07:45:08,969 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-11-19 07:45:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-19 07:45:08,969 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-19 07:45:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:45:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 07:45:08,970 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 07:45:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-19 07:45:08,970 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-19 07:45:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:45:08,971 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:45:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2023-11-19 07:45:08,971 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2023-11-19 07:45:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 07:45:08,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 07:45:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 07:45:08,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 07:45:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-19 07:45:08,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-19 07:45:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:45:08,973 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:45:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:45:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-11-19 07:45:08,973 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-11-19 07:45:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-19 07:45:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-19 07:45:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-11-19 07:45:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-11-19 07:45:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:45:08,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:45:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2023-11-19 07:45:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2023-11-19 07:45:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:45:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-19 07:45:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-19 07:45:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-11-19 07:45:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-11-19 07:45:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-19 07:45:08,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-19 07:45:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 07:45:08,977 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 07:45:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:45:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2023-11-19 07:45:08,977 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2023-11-19 07:45:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:45:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-19 07:45:08,978 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-19 07:45:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 07:45:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-19 07:45:08,979 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-19 07:45:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2023-11-19 07:45:08,979 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2023-11-19 07:45:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-11-19 07:45:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-11-19 07:45:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 07:45:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 07:45:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2023-11-19 07:45:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2023-11-19 07:45:08,989 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-19 07:45:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-19 07:45:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2023-11-19 07:45:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2023-11-19 07:45:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2023-11-19 07:45:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2023-11-19 07:45:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 07:45:08,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 07:45:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:45:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-19 07:45:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-19 07:45:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:45:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:45:09,602 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:45:09,606 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:45:10,439 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:45:16,952 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:45:16,980 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:45:16,980 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:45:16,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:16 BoogieIcfgContainer [2023-11-19 07:45:16,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:45:17,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:45:17,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:45:17,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:45:17,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:05" (1/3) ... [2023-11-19 07:45:17,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451e64a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:17, skipping insertion in model container [2023-11-19 07:45:17,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:08" (2/3) ... [2023-11-19 07:45:17,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451e64a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:17, skipping insertion in model container [2023-11-19 07:45:17,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:16" (3/3) ... [2023-11-19 07:45:17,010 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2023-11-19 07:45:17,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:45:17,034 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:45:17,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:45:17,140 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;@25ed9873, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:45:17,141 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:45:17,160 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) [2023-11-19 07:45:17,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 07:45:17,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:17,189 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] [2023-11-19 07:45:17,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:17,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:17,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1957146618, now seen corresponding path program 1 times [2023-11-19 07:45:17,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:17,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986562461] [2023-11-19 07:45:17,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:17,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:45:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:45:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:45:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:45:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:45:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:45:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:45:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:45:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:45:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:18,338 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:45:18,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:18,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986562461] [2023-11-19 07:45:18,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986562461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:18,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:18,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:18,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457381655] [2023-11-19 07:45:18,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:18,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:18,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:18,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:18,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:18,396 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) [2023-11-19 07:45:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:25,261 INFO L93 Difference]: Finished difference Result 3871 states and 5820 transitions. [2023-11-19 07:45:25,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:25,265 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 [2023-11-19 07:45:25,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:25,306 INFO L225 Difference]: With dead ends: 3871 [2023-11-19 07:45:25,306 INFO L226 Difference]: Without dead ends: 2550 [2023-11-19 07:45:25,321 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 [2023-11-19 07:45:25,325 INFO L413 NwaCegarLoop]: 1642 mSDtfsCounter, 1875 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 3780 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:25,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 3780 Invalid, 1993 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [718 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-19 07:45:25,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2023-11-19 07:45:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2456. [2023-11-19 07:45:25,626 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) [2023-11-19 07:45:25,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3497 transitions. [2023-11-19 07:45:25,658 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3497 transitions. Word has length 72 [2023-11-19 07:45:25,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:25,659 INFO L495 AbstractCegarLoop]: Abstraction has 2456 states and 3497 transitions. [2023-11-19 07:45:25,659 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) [2023-11-19 07:45:25,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3497 transitions. [2023-11-19 07:45:25,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 07:45:25,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:25,669 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] [2023-11-19 07:45:25,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:45:25,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:25,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:25,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1872549286, now seen corresponding path program 1 times [2023-11-19 07:45:25,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:25,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068636309] [2023-11-19 07:45:25,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:25,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:45:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:45:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:45:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:45:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:45:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:45:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:45:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:45:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:45:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:45:26,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:26,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068636309] [2023-11-19 07:45:26,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068636309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:26,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:26,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:26,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399176286] [2023-11-19 07:45:26,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:26,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:26,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:26,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:26,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:26,214 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) [2023-11-19 07:45:30,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:45:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:34,427 INFO L93 Difference]: Finished difference Result 6110 states and 8762 transitions. [2023-11-19 07:45:34,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:34,428 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 [2023-11-19 07:45:34,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:34,457 INFO L225 Difference]: With dead ends: 6110 [2023-11-19 07:45:34,457 INFO L226 Difference]: Without dead ends: 3677 [2023-11-19 07:45:34,469 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 [2023-11-19 07:45:34,470 INFO L413 NwaCegarLoop]: 1752 mSDtfsCounter, 1070 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:34,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 3929 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-19 07:45:34,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2023-11-19 07:45:34,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 3541. [2023-11-19 07:45:34,665 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) [2023-11-19 07:45:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 5021 transitions. [2023-11-19 07:45:34,697 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 5021 transitions. Word has length 73 [2023-11-19 07:45:34,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:34,700 INFO L495 AbstractCegarLoop]: Abstraction has 3541 states and 5021 transitions. [2023-11-19 07:45:34,700 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) [2023-11-19 07:45:34,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 5021 transitions. [2023-11-19 07:45:34,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 07:45:34,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:34,703 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] [2023-11-19 07:45:34,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:45:34,704 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:34,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:34,704 INFO L85 PathProgramCache]: Analyzing trace with hash -925527682, now seen corresponding path program 1 times [2023-11-19 07:45:34,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:34,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406397164] [2023-11-19 07:45:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:34,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:45:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:45:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:45:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:45:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:45:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:45:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:45:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:45:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:45:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:35,329 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:45:35,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:35,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406397164] [2023-11-19 07:45:35,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406397164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:35,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:35,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:35,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974062057] [2023-11-19 07:45:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:35,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:35,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:35,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:35,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:35,333 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) [2023-11-19 07:45:43,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:43,154 INFO L93 Difference]: Finished difference Result 10732 states and 15376 transitions. [2023-11-19 07:45:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:45:43,155 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 [2023-11-19 07:45:43,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:43,213 INFO L225 Difference]: With dead ends: 10732 [2023-11-19 07:45:43,213 INFO L226 Difference]: Without dead ends: 7221 [2023-11-19 07:45:43,229 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 [2023-11-19 07:45:43,230 INFO L413 NwaCegarLoop]: 1736 mSDtfsCounter, 1882 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 3936 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:43,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 3936 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-19 07:45:43,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7221 states. [2023-11-19 07:45:43,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7221 to 6975. [2023-11-19 07:45:43,679 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) [2023-11-19 07:45:43,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 9887 transitions. [2023-11-19 07:45:43,714 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 9887 transitions. Word has length 74 [2023-11-19 07:45:43,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:43,716 INFO L495 AbstractCegarLoop]: Abstraction has 6975 states and 9887 transitions. [2023-11-19 07:45:43,716 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) [2023-11-19 07:45:43,716 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 9887 transitions. [2023-11-19 07:45:43,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 07:45:43,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:43,719 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] [2023-11-19 07:45:43,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:45:43,720 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:43,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:43,720 INFO L85 PathProgramCache]: Analyzing trace with hash -599539857, now seen corresponding path program 1 times [2023-11-19 07:45:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:43,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661889954] [2023-11-19 07:45:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:45:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:45:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:45:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:45:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:45:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:45:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:45:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 07:45:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:45:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:44,103 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 07:45:44,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:44,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661889954] [2023-11-19 07:45:44,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661889954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:44,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:44,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:44,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564974119] [2023-11-19 07:45:44,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:44,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:44,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:44,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:44,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:44,107 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)