./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru.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_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/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_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/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_d70d7f2e-726d-4b2c-b465-1658e59a967f/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 20e4a1f568783894f17840aa5f338f3fb65a6686c2b0eb1bb7dec08049ab8d00 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:40:14,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:40:14,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:40:14,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:40:14,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:40:14,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:40:14,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:40:14,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:40:14,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:40:14,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:40:14,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:40:14,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:40:14,574 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:40:14,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:40:14,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:40:14,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:40:14,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:40:14,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:40:14,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:40:14,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:40:14,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:40:14,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:40:14,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:40:14,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:40:14,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:40:14,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:14,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:40:14,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:40:14,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:40:14,585 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:40:14,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:40:14,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:40:14,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:40:14,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:40:14,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:40:14,588 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:40:14,588 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_d70d7f2e-726d-4b2c-b465-1658e59a967f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20e4a1f568783894f17840aa5f338f3fb65a6686c2b0eb1bb7dec08049ab8d00 [2023-11-19 07:40:14,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:40:14,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:40:14,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:40:14,896 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:40:14,897 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:40:14,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru.ko-entry_point.cil.out.i [2023-11-19 07:40:18,313 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:18,969 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:18,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru.ko-entry_point.cil.out.i [2023-11-19 07:40:19,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/data/5508c26a5/b1439abae1ff49fd8b3ee90e1d21633f/FLAG304ebb7a2 [2023-11-19 07:40:19,037 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/data/5508c26a5/b1439abae1ff49fd8b3ee90e1d21633f [2023-11-19 07:40:19,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:19,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:19,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:19,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:19,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:19,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:19" (1/1) ... [2023-11-19 07:40:19,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1f8e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:19, skipping insertion in model container [2023-11-19 07:40:19,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:19" (1/1) ... [2023-11-19 07:40:19,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:20,730 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_d70d7f2e-726d-4b2c-b465-1658e59a967f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru.ko-entry_point.cil.out.i[175998,176011] [2023-11-19 07:40:20,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:20,942 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:21,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [2452] [2023-11-19 07:40:21,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2455] [2023-11-19 07:40:21,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2458] [2023-11-19 07:40:21,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2461] [2023-11-19 07:40:21,028 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [2613] [2023-11-19 07:40:21,029 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [2621] [2023-11-19 07:40:21,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [2899-2900] [2023-11-19 07:40:21,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [2904-2905] [2023-11-19 07:40:21,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [2909-2910] [2023-11-19 07:40:21,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [2914-2915] [2023-11-19 07:40:21,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [3218-3219] [2023-11-19 07:40:21,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [3223-3224] [2023-11-19 07:40:21,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___6->state): : "memory", "cc"); [3228-3229] [2023-11-19 07:40:21,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___7->state): : "memory", "cc"); [3233-3234] [2023-11-19 07:40:21,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___15->state): : "memory", "cc"); [3313-3314] [2023-11-19 07:40:21,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___16->state): : "memory", "cc"); [3318-3319] [2023-11-19 07:40:21,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___17->state): : "memory", "cc"); [3323-3324] [2023-11-19 07:40:21,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___18->state): : "memory", "cc"); [3328-3329] [2023-11-19 07:40:21,279 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_d70d7f2e-726d-4b2c-b465-1658e59a967f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru.ko-entry_point.cil.out.i[175998,176011] [2023-11-19 07:40:21,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:21,515 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:21,515 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:21,515 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:21,524 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:21,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21 WrapperNode [2023-11-19 07:40:21,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:21,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:21,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:21,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:21,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:21,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:21,870 INFO L138 Inliner]: procedures = 199, calls = 2245, calls flagged for inlining = 73, calls inlined = 51, statements flattened = 3275 [2023-11-19 07:40:21,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:21,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:21,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:21,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:21,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:21,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:21,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:21,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:22,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:22,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:22,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:22,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:22,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:22,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:22,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:22,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:22,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (1/1) ... [2023-11-19 07:40:22,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:22,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:22,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:22,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d7f2e-726d-4b2c-b465-1658e59a967f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:22,190 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 07:40:22,190 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 07:40:22,190 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2023-11-19 07:40:22,190 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2023-11-19 07:40:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-19 07:40:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:40:22,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:40:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 07:40:22,191 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 07:40:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 07:40:22,192 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 07:40:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:40:22,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:40:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru_data [2023-11-19 07:40:22,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru_data [2023-11-19 07:40:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:40:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:40:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:40:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:40:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-19 07:40:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-19 07:40:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:40:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:40:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru_resume [2023-11-19 07:40:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru_resume [2023-11-19 07:40:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:40:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:40:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:40:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:40:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 07:40:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 07:40:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:40:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:40:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:40:22,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:40:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru_data [2023-11-19 07:40:22,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru_data [2023-11-19 07:40:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-19 07:40:22,196 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-19 07:40:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru_send_address [2023-11-19 07:40:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru_send_address [2023-11-19 07:40:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 07:40:22,197 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 07:40:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:40:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru_wait [2023-11-19 07:40:22,198 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru_wait [2023-11-19 07:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru_remove [2023-11-19 07:40:22,198 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru_remove [2023-11-19 07:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:40:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 07:40:22,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 07:40:22,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:40:22,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:40:22,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 07:40:22,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 07:40:22,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:40:22,199 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2023-11-19 07:40:22,200 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2023-11-19 07:40:22,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:40:22,200 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru_write [2023-11-19 07:40:22,200 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru_write [2023-11-19 07:40:22,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:40:22,200 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru_ready [2023-11-19 07:40:22,201 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru_ready [2023-11-19 07:40:22,201 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 07:40:22,201 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru_suspend [2023-11-19 07:40:22,201 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru_suspend [2023-11-19 07:40:22,201 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru_read [2023-11-19 07:40:22,201 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru_read [2023-11-19 07:40:22,202 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru_probe [2023-11-19 07:40:22,202 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru_probe [2023-11-19 07:40:22,202 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-19 07:40:22,202 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-19 07:40:22,202 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-19 07:40:22,202 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-19 07:40:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:40:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-19 07:40:22,203 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-19 07:40:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:22,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 07:40:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 07:40:22,677 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:22,681 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:32,815 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:40:34,602 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:34,620 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:34,621 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:40:34,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:34 BoogieIcfgContainer [2023-11-19 07:40:34,630 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:34,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:40:34,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:40:34,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:40:34,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:40:19" (1/3) ... [2023-11-19 07:40:34,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c57bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:34, skipping insertion in model container [2023-11-19 07:40:34,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:21" (2/3) ... [2023-11-19 07:40:34,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c57bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:34, skipping insertion in model container [2023-11-19 07:40:34,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:34" (3/3) ... [2023-11-19 07:40:34,641 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru.ko-entry_point.cil.out.i [2023-11-19 07:40:34,662 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:40:34,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:40:34,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:34,747 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;@7c0f250f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:34,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:40:34,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 835 states, 619 states have (on average 1.4701130856219708) internal successors, (910), 652 states have internal predecessors, (910), 181 states have call successors, (181), 34 states have call predecessors, (181), 33 states have return successors, (177), 175 states have call predecessors, (177), 177 states have call successors, (177) [2023-11-19 07:40:34,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 07:40:34,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:34,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:34,773 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:34,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:34,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2047948967, now seen corresponding path program 1 times [2023-11-19 07:40:34,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:34,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194165845] [2023-11-19 07:40:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:34,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:40:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:35,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:35,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194165845] [2023-11-19 07:40:35,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194165845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:35,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:35,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:35,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504500137] [2023-11-19 07:40:35,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:35,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:35,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:35,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:35,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:35,813 INFO L87 Difference]: Start difference. First operand has 835 states, 619 states have (on average 1.4701130856219708) internal successors, (910), 652 states have internal predecessors, (910), 181 states have call successors, (181), 34 states have call predecessors, (181), 33 states have return successors, (177), 175 states have call predecessors, (177), 177 states have call successors, (177) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:36,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:36,240 INFO L93 Difference]: Finished difference Result 2424 states and 3726 transitions. [2023-11-19 07:40:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:36,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-19 07:40:36,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:36,275 INFO L225 Difference]: With dead ends: 2424 [2023-11-19 07:40:36,276 INFO L226 Difference]: Without dead ends: 1578 [2023-11-19 07:40:36,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:36,291 INFO L413 NwaCegarLoop]: 2123 mSDtfsCounter, 1221 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 3293 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:36,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 3293 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:40:36,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2023-11-19 07:40:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1574. [2023-11-19 07:40:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1174 states have (on average 1.4625212947189097) internal successors, (1717), 1223 states have internal predecessors, (1717), 335 states have call successors, (335), 65 states have call predecessors, (335), 64 states have return successors, (330), 326 states have call predecessors, (330), 330 states have call successors, (330) [2023-11-19 07:40:36,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2382 transitions. [2023-11-19 07:40:36,558 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2382 transitions. Word has length 21 [2023-11-19 07:40:36,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:36,559 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 2382 transitions. [2023-11-19 07:40:36,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:36,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2382 transitions. [2023-11-19 07:40:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:40:36,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:36,570 INFO L195 NwaCegarLoop]: trace histogram [1, 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 07:40:36,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:40:36,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:36,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:36,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2099743273, now seen corresponding path program 1 times [2023-11-19 07:40:36,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:36,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256812216] [2023-11-19 07:40:36,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:36,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:36,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:40:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:36,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:36,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:36,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256812216] [2023-11-19 07:40:36,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256812216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:36,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:36,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:36,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684249024] [2023-11-19 07:40:36,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:36,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:36,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:36,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:36,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:36,977 INFO L87 Difference]: Start difference. First operand 1574 states and 2382 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:37,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:37,308 INFO L93 Difference]: Finished difference Result 4455 states and 6740 transitions. [2023-11-19 07:40:37,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:37,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-19 07:40:37,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:37,333 INFO L225 Difference]: With dead ends: 4455 [2023-11-19 07:40:37,334 INFO L226 Difference]: Without dead ends: 2884 [2023-11-19 07:40:37,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:37,344 INFO L413 NwaCegarLoop]: 1283 mSDtfsCounter, 1038 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:37,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 2461 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:40:37,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2023-11-19 07:40:37,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2867. [2023-11-19 07:40:37,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2867 states, 2118 states have (on average 1.4523135033050047) internal successors, (3076), 2212 states have internal predecessors, (3076), 635 states have call successors, (635), 114 states have call predecessors, (635), 113 states have return successors, (630), 622 states have call predecessors, (630), 630 states have call successors, (630) [2023-11-19 07:40:37,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2867 states to 2867 states and 4341 transitions. [2023-11-19 07:40:37,605 INFO L78 Accepts]: Start accepts. Automaton has 2867 states and 4341 transitions. Word has length 25 [2023-11-19 07:40:37,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:37,606 INFO L495 AbstractCegarLoop]: Abstraction has 2867 states and 4341 transitions. [2023-11-19 07:40:37,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:37,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2867 states and 4341 transitions. [2023-11-19 07:40:37,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:40:37,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:37,608 INFO L195 NwaCegarLoop]: trace histogram [1, 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 07:40:37,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:40:37,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:37,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:37,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1933644846, now seen corresponding path program 1 times [2023-11-19 07:40:37,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:37,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090463209] [2023-11-19 07:40:37,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:37,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:38,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:40:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:38,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:38,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090463209] [2023-11-19 07:40:38,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090463209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:38,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:38,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:38,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480870830] [2023-11-19 07:40:38,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:38,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:38,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:38,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:38,044 INFO L87 Difference]: Start difference. First operand 2867 states and 4341 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:41,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:41,011 INFO L93 Difference]: Finished difference Result 2877 states and 4362 transitions. [2023-11-19 07:40:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:41,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-19 07:40:41,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:41,033 INFO L225 Difference]: With dead ends: 2877 [2023-11-19 07:40:41,034 INFO L226 Difference]: Without dead ends: 2874 [2023-11-19 07:40:41,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:40:41,037 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 1168 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 1868 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:41,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 1868 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-19 07:40:41,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2023-11-19 07:40:41,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2866. [2023-11-19 07:40:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2118 states have (on average 1.451841359773371) internal successors, (3075), 2211 states have internal predecessors, (3075), 634 states have call successors, (634), 114 states have call predecessors, (634), 113 states have return successors, (630), 622 states have call predecessors, (630), 630 states have call successors, (630) [2023-11-19 07:40:41,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 4339 transitions. [2023-11-19 07:40:41,259 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 4339 transitions. Word has length 25 [2023-11-19 07:40:41,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:41,260 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 4339 transitions. [2023-11-19 07:40:41,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:41,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 4339 transitions. [2023-11-19 07:40:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 07:40:41,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:41,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 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 07:40:41,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:40:41,263 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:41,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:41,263 INFO L85 PathProgramCache]: Analyzing trace with hash 186323247, now seen corresponding path program 1 times [2023-11-19 07:40:41,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:41,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454734014] [2023-11-19 07:40:41,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:41,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:40:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:41,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:41,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:41,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454734014] [2023-11-19 07:40:41,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454734014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:41,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:41,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:41,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203934481] [2023-11-19 07:40:41,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:41,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:41,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:41,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:41,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:41,669 INFO L87 Difference]: Start difference. First operand 2866 states and 4339 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:44,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:44,295 INFO L93 Difference]: Finished difference Result 2876 states and 4360 transitions. [2023-11-19 07:40:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:44,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-19 07:40:44,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:44,319 INFO L225 Difference]: With dead ends: 2876 [2023-11-19 07:40:44,319 INFO L226 Difference]: Without dead ends: 2873 [2023-11-19 07:40:44,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:40:44,324 INFO L413 NwaCegarLoop]: 1101 mSDtfsCounter, 1165 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:44,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 1865 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 07:40:44,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2023-11-19 07:40:44,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2865. [2023-11-19 07:40:44,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2118 states have (on average 1.4513692162417375) internal successors, (3074), 2210 states have internal predecessors, (3074), 633 states have call successors, (633), 114 states have call predecessors, (633), 113 states have return successors, (630), 622 states have call predecessors, (630), 630 states have call successors, (630) [2023-11-19 07:40:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 4337 transitions. [2023-11-19 07:40:44,604 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 4337 transitions. Word has length 26 [2023-11-19 07:40:44,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:44,605 INFO L495 AbstractCegarLoop]: Abstraction has 2865 states and 4337 transitions. [2023-11-19 07:40:44,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:44,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 4337 transitions. [2023-11-19 07:40:44,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 07:40:44,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:44,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 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 07:40:44,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:40:44,607 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:44,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:44,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1480829557, now seen corresponding path program 1 times [2023-11-19 07:40:44,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:44,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066002673] [2023-11-19 07:40:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:44,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:40:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:44,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:44,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066002673] [2023-11-19 07:40:44,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066002673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:44,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:44,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:44,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375172041] [2023-11-19 07:40:44,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:44,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:44,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:44,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:44,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:44,912 INFO L87 Difference]: Start difference. First operand 2865 states and 4337 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:48,999 INFO L93 Difference]: Finished difference Result 8539 states and 12975 transitions. [2023-11-19 07:40:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:40:49,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-19 07:40:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:49,091 INFO L225 Difference]: With dead ends: 8539 [2023-11-19 07:40:49,092 INFO L226 Difference]: Without dead ends: 5665 [2023-11-19 07:40:49,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:40:49,108 INFO L413 NwaCegarLoop]: 1102 mSDtfsCounter, 1249 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:49,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 2825 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 07:40:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5665 states. [2023-11-19 07:40:49,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5665 to 5640. [2023-11-19 07:40:49,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5640 states, 4169 states have (on average 1.453585991844567) internal successors, (6060), 4360 states have internal predecessors, (6060), 1257 states have call successors, (1257), 221 states have call predecessors, (1257), 213 states have return successors, (1247), 1222 states have call predecessors, (1247), 1247 states have call successors, (1247) [2023-11-19 07:40:49,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5640 states to 5640 states and 8564 transitions. [2023-11-19 07:40:49,568 INFO L78 Accepts]: Start accepts. Automaton has 5640 states and 8564 transitions. Word has length 27 [2023-11-19 07:40:49,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:49,569 INFO L495 AbstractCegarLoop]: Abstraction has 5640 states and 8564 transitions. [2023-11-19 07:40:49,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:40:49,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5640 states and 8564 transitions. [2023-11-19 07:40:49,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-19 07:40:49,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:49,577 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:49,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:40:49,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:40:49,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:49,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1513742732, now seen corresponding path program 1 times [2023-11-19 07:40:49,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:49,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313101325] [2023-11-19 07:40:49,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:49,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:50,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:40:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:50,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:40:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:50,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:50,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:40:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:50,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:40:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:50,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:40:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:50,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:50,217 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:50,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:50,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313101325] [2023-11-19 07:40:50,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313101325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:50,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:50,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:40:50,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769019701] [2023-11-19 07:40:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:50,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:40:50,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:50,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:40:50,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:40:50,222 INFO L87 Difference]: Start difference. First operand 5640 states and 8564 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:40:51,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:40:57,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:40:59,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:41:01,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:41:04,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:04,192 INFO L93 Difference]: Finished difference Result 11738 states and 17963 transitions. [2023-11-19 07:41:04,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:41:04,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2023-11-19 07:41:04,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:04,244 INFO L225 Difference]: With dead ends: 11738 [2023-11-19 07:41:04,244 INFO L226 Difference]: Without dead ends: 6097 [2023-11-19 07:41:04,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:41:04,272 INFO L413 NwaCegarLoop]: 1105 mSDtfsCounter, 412 mSDsluCounter, 3380 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 555 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 4485 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:04,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 4485 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1311 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2023-11-19 07:41:04,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6097 states. [2023-11-19 07:41:04,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6097 to 5642. [2023-11-19 07:41:04,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5642 states, 4171 states have (on average 1.4524094941261088) internal successors, (6058), 4362 states have internal predecessors, (6058), 1257 states have call successors, (1257), 221 states have call predecessors, (1257), 213 states have return successors, (1247), 1222 states have call predecessors, (1247), 1247 states have call successors, (1247) [2023-11-19 07:41:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5642 states to 5642 states and 8562 transitions. [2023-11-19 07:41:04,723 INFO L78 Accepts]: Start accepts. Automaton has 5642 states and 8562 transitions. Word has length 77 [2023-11-19 07:41:04,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:04,724 INFO L495 AbstractCegarLoop]: Abstraction has 5642 states and 8562 transitions. [2023-11-19 07:41:04,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:41:04,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5642 states and 8562 transitions. [2023-11-19 07:41:04,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:41:04,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:04,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:04,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:41:04,734 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:04,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:04,736 INFO L85 PathProgramCache]: Analyzing trace with hash 965600018, now seen corresponding path program 1 times [2023-11-19 07:41:04,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:04,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493126830] [2023-11-19 07:41:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:04,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:41:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:41:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:41:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:41:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:41:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:41:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 07:41:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:05,478 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:41:05,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:05,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493126830] [2023-11-19 07:41:05,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493126830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:05,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:05,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:41:05,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076960173] [2023-11-19 07:41:05,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:05,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:41:05,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:05,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:41:05,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:41:05,484 INFO L87 Difference]: Start difference. First operand 5642 states and 8562 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)