./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1 --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 73d0fc2a1532f0dbe88956ef9fb1a19856bd3ec52801d3ed611d85534d86cd8d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:42:51,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:42:51,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:42:51,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:42:51,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:42:51,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:42:51,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:42:51,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:42:51,937 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:42:51,937 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:42:51,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:42:51,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:42:51,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:42:51,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:42:51,938 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:42:51,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:42:51,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:42:51,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:42:51,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:42:51,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:42:51,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:42:51,939 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:42:51,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:42:51,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:42:51,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:42:51,940 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1 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 -> 73d0fc2a1532f0dbe88956ef9fb1a19856bd3ec52801d3ed611d85534d86cd8d [2024-12-02 12:42:52,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:42:52,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:42:52,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:42:52,174 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:42:52,174 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:42:52,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2024-12-02 12:42:54,847 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/data/8564c1a9c/6b5f9c94b1b1467297cb14a7c72c4b38/FLAGfc08ada3d [2024-12-02 12:42:55,217 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:42:55,217 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2024-12-02 12:42:55,245 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/data/8564c1a9c/6b5f9c94b1b1467297cb14a7c72c4b38/FLAGfc08ada3d [2024-12-02 12:42:55,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/data/8564c1a9c/6b5f9c94b1b1467297cb14a7c72c4b38 [2024-12-02 12:42:55,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:42:55,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:42:55,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:42:55,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:42:55,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:42:55,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:55" (1/1) ... [2024-12-02 12:42:55,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f2d983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:55, skipping insertion in model container [2024-12-02 12:42:55,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:42:55" (1/1) ... [2024-12-02 12:42:55,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:42:55,565 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2024-12-02 12:42:55,571 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2024-12-02 12:42:56,442 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,443 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,443 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,444 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,445 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,459 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,459 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,461 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,461 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,463 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,464 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,464 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:56,465 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,298 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,298 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,317 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,317 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,322 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,322 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,333 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,334 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,334 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,334 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,334 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,335 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,335 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,361 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[227600,227613] [2024-12-02 12:42:57,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:42:57,386 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:42:57,396 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2024-12-02 12:42:57,396 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2024-12-02 12:42:57,431 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,431 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,431 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,431 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,432 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,438 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,438 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,440 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,440 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,441 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,441 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,442 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,442 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2024-12-02 12:42:57,577 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,577 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,582 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,583 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,585 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,585 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,592 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,592 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,593 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,593 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,593 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,593 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,594 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:42:57,608 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[227600,227613] [2024-12-02 12:42:57,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:42:57,784 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:42:57,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57 WrapperNode [2024-12-02 12:42:57,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:42:57,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:42:57,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:42:57,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:42:57,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:57,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:57,917 INFO L138 Inliner]: procedures = 764, calls = 2430, calls flagged for inlining = 70, calls inlined = 18, statements flattened = 969 [2024-12-02 12:42:57,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:42:57,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:42:57,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:42:57,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:42:57,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:57,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:57,939 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:58,042 INFO L175 MemorySlicer]: Split 377 memory accesses to 7 slices as follows [44, 2, 2, 249, 73, 2, 5]. 66 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [0, 2, 0, 6, 9, 0, 5]. The 257 writes are split as follows [8, 0, 1, 233, 14, 1, 0]. [2024-12-02 12:42:58,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:58,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:58,079 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:58,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:58,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:58,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:58,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:58,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:42:58,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:42:58,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:42:58,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:42:58,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (1/1) ... [2024-12-02 12:42:58,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:42:58,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:42:58,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:42:58,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:42:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 12:42:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 12:42:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 12:42:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 12:42:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 12:42:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-12-02 12:42:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-12-02 12:42:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2024-12-02 12:42:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-12-02 12:42:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-12-02 12:42:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 12:42:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-12-02 12:42:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-12-02 12:42:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:42:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2024-12-02 12:42:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2024-12-02 12:42:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:42:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 12:42:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-12-02 12:42:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2024-12-02 12:42:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 12:42:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 12:42:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 12:42:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 12:42:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:42:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_int [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_int [2024-12-02 12:42:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:42:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2024-12-02 12:42:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-12-02 12:42:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-12-02 12:42:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-12-02 12:42:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-12-02 12:42:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-12-02 12:42:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-12-02 12:42:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 12:42:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2024-12-02 12:42:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 12:42:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 12:42:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-12-02 12:42:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-12-02 12:42:58,511 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:42:58,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:42:58,746 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:42:58,749 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:42:58,853 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2024-12-02 12:42:58,854 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2024-12-02 12:42:58,854 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume !false; [2024-12-02 12:42:58,854 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume false; [2024-12-02 12:42:59,044 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:43:04,701 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2024-12-02 12:43:04,701 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2024-12-02 12:43:04,811 INFO L? ?]: Removed 286 outVars from TransFormulas that were not future-live. [2024-12-02 12:43:04,812 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:43:04,827 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:43:04,827 INFO L312 CfgBuilder]: Removed 9 assume(true) statements. [2024-12-02 12:43:04,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:04 BoogieIcfgContainer [2024-12-02 12:43:04,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:43:04,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:43:04,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:43:04,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:43:04,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:42:55" (1/3) ... [2024-12-02 12:43:04,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad7c076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:04, skipping insertion in model container [2024-12-02 12:43:04,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:42:57" (2/3) ... [2024-12-02 12:43:04,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad7c076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:04, skipping insertion in model container [2024-12-02 12:43:04,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:04" (3/3) ... [2024-12-02 12:43:04,836 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_foreach_harness.i [2024-12-02 12:43:04,850 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:43:04,851 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_foreach_harness.i that has 29 procedures, 327 locations, 1 initial locations, 15 loop locations, and 1 error locations. [2024-12-02 12:43:04,921 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:43:04,932 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@48725682, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:43:04,932 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:43:04,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 307 states, 205 states have (on average 1.2926829268292683) internal successors, (265), 202 states have internal predecessors, (265), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-12-02 12:43:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 12:43:04,947 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:04,948 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:04,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:04,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:04,954 INFO L85 PathProgramCache]: Analyzing trace with hash -354585547, now seen corresponding path program 1 times [2024-12-02 12:43:04,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:04,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334822637] [2024-12-02 12:43:04,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:04,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-12-02 12:43:11,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:11,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334822637] [2024-12-02 12:43:11,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334822637] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:11,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:43:11,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:43:11,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899189812] [2024-12-02 12:43:11,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:11,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:43:11,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:11,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:43:11,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:43:11,724 INFO L87 Difference]: Start difference. First operand has 307 states, 205 states have (on average 1.2926829268292683) internal successors, (265), 202 states have internal predecessors, (265), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 12:43:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:11,947 INFO L93 Difference]: Finished difference Result 610 states and 914 transitions. [2024-12-02 12:43:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:43:11,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122 [2024-12-02 12:43:11,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:11,958 INFO L225 Difference]: With dead ends: 610 [2024-12-02 12:43:11,958 INFO L226 Difference]: Without dead ends: 306 [2024-12-02 12:43:11,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:43:11,965 INFO L435 NwaCegarLoop]: 409 mSDtfsCounter, 0 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:11,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1632 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:43:11,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-12-02 12:43:12,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2024-12-02 12:43:12,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 200 states have (on average 1.25) internal successors, (250), 201 states have internal predecessors, (250), 81 states have call successors, (81), 23 states have call predecessors, (81), 24 states have return successors, (81), 81 states have call predecessors, (81), 80 states have call successors, (81) [2024-12-02 12:43:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 412 transitions. [2024-12-02 12:43:12,017 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 412 transitions. Word has length 122 [2024-12-02 12:43:12,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:12,019 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 412 transitions. [2024-12-02 12:43:12,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 12:43:12,019 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 412 transitions. [2024-12-02 12:43:12,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 12:43:12,022 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:12,022 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:12,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:43:12,023 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:12,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:12,024 INFO L85 PathProgramCache]: Analyzing trace with hash -659809100, now seen corresponding path program 1 times [2024-12-02 12:43:12,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:12,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239010078] [2024-12-02 12:43:12,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:12,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-12-02 12:43:19,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239010078] [2024-12-02 12:43:19,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239010078] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:43:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044860904] [2024-12-02 12:43:19,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:19,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:43:19,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:43:19,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:43:19,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:43:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:25,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 4388 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 12:43:25,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:43:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-12-02 12:43:27,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:43:30,223 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-12-02 12:43:30,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044860904] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:43:30,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:43:30,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 21 [2024-12-02 12:43:30,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669736912] [2024-12-02 12:43:30,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:30,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:43:30,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:30,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:43:30,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2024-12-02 12:43:30,227 INFO L87 Difference]: Start difference. First operand 306 states and 412 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2024-12-02 12:43:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:43:32,715 INFO L93 Difference]: Finished difference Result 557 states and 776 transitions. [2024-12-02 12:43:32,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:43:32,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) Word has length 134 [2024-12-02 12:43:32,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:43:32,722 INFO L225 Difference]: With dead ends: 557 [2024-12-02 12:43:32,722 INFO L226 Difference]: Without dead ends: 329 [2024-12-02 12:43:32,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2024-12-02 12:43:32,725 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 440 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:43:32,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 2181 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 12:43:32,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-12-02 12:43:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 323. [2024-12-02 12:43:32,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 210 states have (on average 1.2476190476190476) internal successors, (262), 212 states have internal predecessors, (262), 86 states have call successors, (86), 24 states have call predecessors, (86), 26 states have return successors, (93), 86 states have call predecessors, (93), 85 states have call successors, (93) [2024-12-02 12:43:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 441 transitions. [2024-12-02 12:43:32,765 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 441 transitions. Word has length 134 [2024-12-02 12:43:32,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:43:32,766 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 441 transitions. [2024-12-02 12:43:32,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2024-12-02 12:43:32,766 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 441 transitions. [2024-12-02 12:43:32,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 12:43:32,768 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:43:32,769 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:43:32,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:43:32,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:43:32,970 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:43:32,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:43:32,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1451937070, now seen corresponding path program 1 times [2024-12-02 12:43:32,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:43:32,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901753233] [2024-12-02 12:43:32,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:32,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:43:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-12-02 12:43:40,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:43:40,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901753233] [2024-12-02 12:43:40,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901753233] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:43:40,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548716740] [2024-12-02 12:43:40,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:43:40,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:43:40,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:43:40,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:43:40,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:43:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:43:46,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 4393 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-12-02 12:43:46,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:43:46,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:43:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 12:43:49,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:43:49,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548716740] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:43:49,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:43:49,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 19 [2024-12-02 12:43:49,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526332203] [2024-12-02 12:43:49,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:43:49,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:43:49,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:43:49,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:43:49,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-12-02 12:43:49,421 INFO L87 Difference]: Start difference. First operand 323 states and 441 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 12:43:53,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:43:57,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:44:02,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:44:06,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:44:10,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:44:15,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:44:19,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:44:33,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:33,093 INFO L93 Difference]: Finished difference Result 603 states and 839 transitions. [2024-12-02 12:44:33,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:44:33,094 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 135 [2024-12-02 12:44:33,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:33,098 INFO L225 Difference]: With dead ends: 603 [2024-12-02 12:44:33,099 INFO L226 Difference]: Without dead ends: 344 [2024-12-02 12:44:33,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 123 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-12-02 12:44:33,101 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 373 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 43 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:33,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 2717 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1035 Invalid, 7 Unknown, 0 Unchecked, 42.8s Time] [2024-12-02 12:44:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-12-02 12:44:33,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 341. [2024-12-02 12:44:33,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 225 states have (on average 1.2444444444444445) internal successors, (280), 228 states have internal predecessors, (280), 86 states have call successors, (86), 26 states have call predecessors, (86), 29 states have return successors, (96), 86 states have call predecessors, (96), 85 states have call successors, (96) [2024-12-02 12:44:33,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 462 transitions. [2024-12-02 12:44:33,134 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 462 transitions. Word has length 135 [2024-12-02 12:44:33,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:33,135 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 462 transitions. [2024-12-02 12:44:33,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-12-02 12:44:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 462 transitions. [2024-12-02 12:44:33,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 12:44:33,136 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:33,136 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:33,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 12:44:33,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:44:33,337 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:33,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:33,337 INFO L85 PathProgramCache]: Analyzing trace with hash 378022094, now seen corresponding path program 1 times [2024-12-02 12:44:33,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:33,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361036659] [2024-12-02 12:44:33,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:33,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:38,644 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-12-02 12:44:38,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:38,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361036659] [2024-12-02 12:44:38,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361036659] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:44:38,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644339324] [2024-12-02 12:44:38,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:38,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:44:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:44:38,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:44:38,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:44:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:44,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 4383 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:44:44,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:44:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 12:44:45,231 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:44:45,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644339324] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:45,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:44:45,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 12:44:45,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854878814] [2024-12-02 12:44:45,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:45,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:44:45,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:45,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:44:45,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:44:45,233 INFO L87 Difference]: Start difference. First operand 341 states and 462 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 12:44:47,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:47,188 INFO L93 Difference]: Finished difference Result 610 states and 847 transitions. [2024-12-02 12:44:47,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:44:47,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 135 [2024-12-02 12:44:47,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:47,191 INFO L225 Difference]: With dead ends: 610 [2024-12-02 12:44:47,191 INFO L226 Difference]: Without dead ends: 346 [2024-12-02 12:44:47,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:44:47,192 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 438 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:47,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1010 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 12:44:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-12-02 12:44:47,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-12-02 12:44:47,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 228 states have (on average 1.2412280701754386) internal successors, (283), 232 states have internal predecessors, (283), 87 states have call successors, (87), 26 states have call predecessors, (87), 30 states have return successors, (101), 87 states have call predecessors, (101), 86 states have call successors, (101) [2024-12-02 12:44:47,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 471 transitions. [2024-12-02 12:44:47,215 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 471 transitions. Word has length 135 [2024-12-02 12:44:47,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:47,215 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 471 transitions. [2024-12-02 12:44:47,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-02 12:44:47,215 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 471 transitions. [2024-12-02 12:44:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 12:44:47,217 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:47,217 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:44:47,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:44:47,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:44:47,417 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:47,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:47,417 INFO L85 PathProgramCache]: Analyzing trace with hash 617530420, now seen corresponding path program 1 times [2024-12-02 12:44:47,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:47,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994386545] [2024-12-02 12:44:47,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:47,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-12-02 12:44:53,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:53,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994386545] [2024-12-02 12:44:53,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994386545] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:44:53,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523634613] [2024-12-02 12:44:53,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:53,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:44:53,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:44:53,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:44:53,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:44:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:59,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 4412 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 12:44:59,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:45:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 12:45:01,050 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:45:01,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523634613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:45:01,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:45:01,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-12-02 12:45:01,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139213020] [2024-12-02 12:45:01,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:45:01,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:45:01,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:45:01,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:45:01,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:45:01,051 INFO L87 Difference]: Start difference. First operand 346 states and 471 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 12:45:04,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:45:04,441 INFO L93 Difference]: Finished difference Result 612 states and 848 transitions. [2024-12-02 12:45:04,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:45:04,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 141 [2024-12-02 12:45:04,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:45:04,444 INFO L225 Difference]: With dead ends: 612 [2024-12-02 12:45:04,444 INFO L226 Difference]: Without dead ends: 346 [2024-12-02 12:45:04,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:45:04,446 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 437 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:45:04,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1727 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 12:45:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-12-02 12:45:04,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 343. [2024-12-02 12:45:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 226 states have (on average 1.2433628318584071) internal successors, (281), 229 states have internal predecessors, (281), 87 states have call successors, (87), 26 states have call predecessors, (87), 29 states have return successors, (97), 87 states have call predecessors, (97), 86 states have call successors, (97) [2024-12-02 12:45:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 465 transitions. [2024-12-02 12:45:04,478 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 465 transitions. Word has length 141 [2024-12-02 12:45:04,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:45:04,478 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 465 transitions. [2024-12-02 12:45:04,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2024-12-02 12:45:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 465 transitions. [2024-12-02 12:45:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 12:45:04,480 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:45:04,481 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:45:04,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 12:45:04,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:45:04,681 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:45:04,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:45:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash -141837158, now seen corresponding path program 1 times [2024-12-02 12:45:04,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:45:04,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549014035] [2024-12-02 12:45:04,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:45:04,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:45:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:45:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-12-02 12:45:10,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:45:10,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549014035] [2024-12-02 12:45:10,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549014035] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:45:10,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137116569] [2024-12-02 12:45:10,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:45:10,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:45:10,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:45:10,781 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:45:10,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 12:45:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:45:16,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 4441 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 12:45:16,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:45:21,573 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((v_aws_hash_table_is_valid_~map.offset_13 Int) (v_aws_hash_table_is_valid_~map.base_13 Int)) (not (= (select (select |c_#memory_$Pointer$#3.offset| v_aws_hash_table_is_valid_~map.base_13) v_aws_hash_table_is_valid_~map.offset_13) 0))) (exists ((v_aws_hash_table_is_valid_~map.offset_13 Int) (v_aws_hash_table_is_valid_~map.base_13 Int)) (not (= (select (select |c_#memory_$Pointer$#3.base| v_aws_hash_table_is_valid_~map.base_13) v_aws_hash_table_is_valid_~map.offset_13) 0)))) is different from true [2024-12-02 12:45:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-02 12:45:30,391 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:45:30,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137116569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:45:30,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:45:30,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-12-02 12:45:30,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458821094] [2024-12-02 12:45:30,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:45:30,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:45:30,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:45:30,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:45:30,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2024-12-02 12:45:30,393 INFO L87 Difference]: Start difference. First operand 343 states and 465 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 12:45:34,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:45:38,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:45:43,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:45:47,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:45:51,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:45:56,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:45:57,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:45:57,824 INFO L93 Difference]: Finished difference Result 616 states and 868 transitions. [2024-12-02 12:45:57,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:45:57,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2024-12-02 12:45:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:45:57,828 INFO L225 Difference]: With dead ends: 616 [2024-12-02 12:45:57,828 INFO L226 Difference]: Without dead ends: 348 [2024-12-02 12:45:57,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2024-12-02 12:45:57,829 INFO L435 NwaCegarLoop]: 403 mSDtfsCounter, 3 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 425 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:45:57,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2331 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 6 Unknown, 425 Unchecked, 27.4s Time] [2024-12-02 12:45:57,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-12-02 12:45:57,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 345. [2024-12-02 12:45:57,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 228 states have (on average 1.2412280701754386) internal successors, (283), 230 states have internal predecessors, (283), 87 states have call successors, (87), 27 states have call predecessors, (87), 29 states have return successors, (97), 87 states have call predecessors, (97), 86 states have call successors, (97) [2024-12-02 12:45:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2024-12-02 12:45:57,847 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 147 [2024-12-02 12:45:57,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:45:57,848 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2024-12-02 12:45:57,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 12:45:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2024-12-02 12:45:57,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 12:45:57,849 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:45:57,849 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:45:57,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 12:45:58,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 12:45:58,050 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:45:58,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:45:58,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1658393258, now seen corresponding path program 1 times [2024-12-02 12:45:58,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:45:58,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531433614] [2024-12-02 12:45:58,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:45:58,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:46:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:46:07,669 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-12-02 12:46:07,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:46:07,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531433614] [2024-12-02 12:46:07,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531433614] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:46:07,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475395240] [2024-12-02 12:46:07,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:46:07,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:46:07,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:46:07,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:46:07,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 12:46:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:46:13,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 4505 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-12-02 12:46:13,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:46:18,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:46:18,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:46:18,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2024-12-02 12:46:21,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 1 [2024-12-02 12:46:32,229 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-12-02 12:46:32,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:46:32,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475395240] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:46:32,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:46:32,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [13] total 32 [2024-12-02 12:46:32,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088093225] [2024-12-02 12:46:32,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:46:32,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 12:46:32,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:46:32,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 12:46:32,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2024-12-02 12:46:32,231 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand has 21 states, 16 states have (on average 5.5625) internal successors, (89), 17 states have internal predecessors, (89), 9 states have call successors, (26), 2 states have call predecessors, (26), 6 states have return successors, (24), 7 states have call predecessors, (24), 9 states have call successors, (24) [2024-12-02 12:46:36,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:46:40,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:46:45,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:46:49,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:46:53,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:46:58,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:02,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:07,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:11,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:15,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:20,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:24,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:29,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:33,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:37,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:42,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:46,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:51,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:48:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:48:35,718 INFO L93 Difference]: Finished difference Result 630 states and 875 transitions. [2024-12-02 12:48:35,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 12:48:35,719 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 5.5625) internal successors, (89), 17 states have internal predecessors, (89), 9 states have call successors, (26), 2 states have call predecessors, (26), 6 states have return successors, (24), 7 states have call predecessors, (24), 9 states have call successors, (24) Word has length 161 [2024-12-02 12:48:35,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:48:35,722 INFO L225 Difference]: With dead ends: 630 [2024-12-02 12:48:35,723 INFO L226 Difference]: Without dead ends: 365 [2024-12-02 12:48:35,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 129 SyntacticMatches, 16 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 12:48:35,725 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 353 mSDsluCounter, 3729 mSDsCounter, 0 mSdLazyCounter, 3296 mSolverCounterSat, 46 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 3360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 3296 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:48:35,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 4067 Invalid, 3360 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 3296 Invalid, 18 Unknown, 0 Unchecked, 120.8s Time] [2024-12-02 12:48:35,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-12-02 12:48:35,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 355. [2024-12-02 12:48:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 235 states have (on average 1.2340425531914894) internal successors, (290), 238 states have internal predecessors, (290), 87 states have call successors, (87), 27 states have call predecessors, (87), 32 states have return successors, (109), 89 states have call predecessors, (109), 86 states have call successors, (109) [2024-12-02 12:48:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 486 transitions. [2024-12-02 12:48:35,760 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 486 transitions. Word has length 161 [2024-12-02 12:48:35,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:48:35,760 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 486 transitions. [2024-12-02 12:48:35,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 5.5625) internal successors, (89), 17 states have internal predecessors, (89), 9 states have call successors, (26), 2 states have call predecessors, (26), 6 states have return successors, (24), 7 states have call predecessors, (24), 9 states have call successors, (24) [2024-12-02 12:48:35,761 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 486 transitions. [2024-12-02 12:48:35,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 12:48:35,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:48:35,763 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:48:35,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 12:48:35,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:48:35,963 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:48:35,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:48:35,964 INFO L85 PathProgramCache]: Analyzing trace with hash 887892881, now seen corresponding path program 1 times [2024-12-02 12:48:35,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:48:35,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069264497] [2024-12-02 12:48:35,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:48:35,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:48:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:48:45,987 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 12:48:45,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:48:45,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069264497] [2024-12-02 12:48:45,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069264497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:48:45,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:48:45,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 12:48:45,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050365546] [2024-12-02 12:48:45,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:48:45,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:48:45,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:48:45,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:48:45,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:48:45,989 INFO L87 Difference]: Start difference. First operand 355 states and 486 transitions. Second operand has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 12:48:54,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:48:54,691 INFO L93 Difference]: Finished difference Result 630 states and 893 transitions. [2024-12-02 12:48:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 12:48:54,691 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 163 [2024-12-02 12:48:54,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:48:54,694 INFO L225 Difference]: With dead ends: 630 [2024-12-02 12:48:54,694 INFO L226 Difference]: Without dead ends: 377 [2024-12-02 12:48:54,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2024-12-02 12:48:54,695 INFO L435 NwaCegarLoop]: 390 mSDtfsCounter, 121 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 4385 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:48:54,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 4385 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-12-02 12:48:54,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-12-02 12:48:54,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 367. [2024-12-02 12:48:54,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 243 states have (on average 1.2345679012345678) internal successors, (300), 248 states have internal predecessors, (300), 89 states have call successors, (89), 27 states have call predecessors, (89), 34 states have return successors, (123), 91 states have call predecessors, (123), 88 states have call successors, (123) [2024-12-02 12:48:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 512 transitions. [2024-12-02 12:48:54,748 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 512 transitions. Word has length 163 [2024-12-02 12:48:54,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:48:54,749 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 512 transitions. [2024-12-02 12:48:54,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 8 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-12-02 12:48:54,749 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 512 transitions. [2024-12-02 12:48:54,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 12:48:54,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:48:54,750 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:48:54,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:48:54,750 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:48:54,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:48:54,751 INFO L85 PathProgramCache]: Analyzing trace with hash 753879375, now seen corresponding path program 1 times [2024-12-02 12:48:54,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:48:54,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353041784] [2024-12-02 12:48:54,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:48:54,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:48:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:49:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 12:49:03,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:49:03,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353041784] [2024-12-02 12:49:03,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353041784] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:49:03,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589819793] [2024-12-02 12:49:03,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:49:03,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:49:03,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:49:03,348 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:49:03,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 12:49:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:49:09,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 4504 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 12:49:09,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:49:11,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-12-02 12:49:13,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 12:49:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-12-02 12:49:15,073 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:49:15,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589819793] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:49:15,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:49:15,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2024-12-02 12:49:15,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836164773] [2024-12-02 12:49:15,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:49:15,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:49:15,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:49:15,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:49:15,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2024-12-02 12:49:15,075 INFO L87 Difference]: Start difference. First operand 367 states and 512 transitions. Second operand has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 8 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 12:49:19,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:49:23,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:49:28,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:49:32,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:49:37,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:49:42,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:49:46,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:50:01,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:50:05,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:50:11,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:50:15,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:50:19,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:50:24,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:50:28,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:50:32,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:50:32,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:32,757 INFO L93 Difference]: Finished difference Result 854 states and 1209 transitions. [2024-12-02 12:50:32,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 12:50:32,759 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 8 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) Word has length 163 [2024-12-02 12:50:32,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:32,762 INFO L225 Difference]: With dead ends: 854 [2024-12-02 12:50:32,762 INFO L226 Difference]: Without dead ends: 589 [2024-12-02 12:50:32,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=165, Invalid=1167, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 12:50:32,764 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 838 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 326 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 3371 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:32,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 3371 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 960 Invalid, 15 Unknown, 0 Unchecked, 74.5s Time] [2024-12-02 12:50:32,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-12-02 12:50:32,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 559. [2024-12-02 12:50:32,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 371 states have (on average 1.2533692722371967) internal successors, (465), 379 states have internal predecessors, (465), 139 states have call successors, (139), 42 states have call predecessors, (139), 48 states have return successors, (165), 137 states have call predecessors, (165), 137 states have call successors, (165) [2024-12-02 12:50:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 769 transitions. [2024-12-02 12:50:32,797 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 769 transitions. Word has length 163 [2024-12-02 12:50:32,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:32,797 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 769 transitions. [2024-12-02 12:50:32,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 8 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-12-02 12:50:32,798 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 769 transitions. [2024-12-02 12:50:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 12:50:32,799 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:32,799 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:50:32,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 12:50:32,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:50:32,999 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:33,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:33,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1819480835, now seen corresponding path program 1 times [2024-12-02 12:50:33,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:33,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177177269] [2024-12-02 12:50:33,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:33,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-12-02 12:50:42,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:42,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177177269] [2024-12-02 12:50:42,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177177269] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:50:42,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179924160] [2024-12-02 12:50:42,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:42,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:50:42,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:50:42,731 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:50:42,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 12:50:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:49,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 4520 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 12:50:49,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:50:51,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-12-02 12:50:52,639 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_s_get_next_element_~iter.offset_11 Int)) (and (<= |c_s_get_next_element_#in~iter.offset| v_s_get_next_element_~iter.offset_11) (= |c_#memory_$Pointer$#4.base| (store |c_old(#memory_$Pointer$#4.base)| |c_s_get_next_element_#in~iter.base| (let ((.cse1 (select |c_#memory_$Pointer$#4.base| |c_s_get_next_element_#in~iter.base|)) (.cse4 (+ 40 v_s_get_next_element_~iter.offset_11))) (store (let ((.cse3 (+ v_s_get_next_element_~iter.offset_11 24))) (store (let ((.cse2 (+ 16 v_s_get_next_element_~iter.offset_11))) (store (let ((.cse0 (+ v_s_get_next_element_~iter.offset_11 8))) (store (select |c_old(#memory_$Pointer$#4.base)| |c_s_get_next_element_#in~iter.base|) .cse0 (select .cse1 .cse0))) .cse2 (select .cse1 .cse2))) .cse3 (select .cse1 .cse3))) .cse4 (select .cse1 .cse4))))))) is different from true [2024-12-02 12:50:52,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 12:50:52,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 12:50:52,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 12:50:52,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 12:50:52,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 11 [2024-12-02 12:50:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-12-02 12:50:54,936 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:50:54,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179924160] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:54,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:50:54,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 25 [2024-12-02 12:50:54,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188189567] [2024-12-02 12:50:54,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:54,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 12:50:54,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:54,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 12:50:54,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=491, Unknown=1, NotChecked=44, Total=600 [2024-12-02 12:50:54,938 INFO L87 Difference]: Start difference. First operand 559 states and 769 transitions. Second operand has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 12 states have internal predecessors, (73), 7 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) [2024-12-02 12:50:58,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:05,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:09,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:13,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 12:51:19,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:23,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:28,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:32,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:37,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:42,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:47,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:51,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:51:55,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:52:04,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:52:08,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:52:09,088 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((v_s_get_next_element_~iter.offset_11 Int)) (and (<= |c_s_get_next_element_#in~iter.offset| v_s_get_next_element_~iter.offset_11) (= |c_#memory_$Pointer$#4.base| (store |c_old(#memory_$Pointer$#4.base)| |c_s_get_next_element_#in~iter.base| (let ((.cse1 (select |c_#memory_$Pointer$#4.base| |c_s_get_next_element_#in~iter.base|)) (.cse4 (+ 40 v_s_get_next_element_~iter.offset_11))) (store (let ((.cse3 (+ v_s_get_next_element_~iter.offset_11 24))) (store (let ((.cse2 (+ 16 v_s_get_next_element_~iter.offset_11))) (store (let ((.cse0 (+ v_s_get_next_element_~iter.offset_11 8))) (store (select |c_old(#memory_$Pointer$#4.base)| |c_s_get_next_element_#in~iter.base|) .cse0 (select .cse1 .cse0))) .cse2 (select .cse1 .cse2))) .cse3 (select .cse1 .cse3))) .cse4 (select .cse1 .cse4))))))) (< 0 |c_#StackHeapBarrier|)) is different from true [2024-12-02 12:52:22,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:52:42,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:52:46,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:52:54,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:52:58,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:04,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:13,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:17,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:21,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:27,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:31,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:37,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:41,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:46,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:50,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:54,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:53:58,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:54:02,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:54:06,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:54:06,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:54:06,185 INFO L93 Difference]: Finished difference Result 1527 states and 2121 transitions. [2024-12-02 12:54:06,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 12:54:06,188 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 12 states have internal predecessors, (73), 7 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) Word has length 168 [2024-12-02 12:54:06,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:54:06,194 INFO L225 Difference]: With dead ends: 1527 [2024-12-02 12:54:06,194 INFO L226 Difference]: Without dead ends: 1066 [2024-12-02 12:54:06,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=170, Invalid=1168, Unknown=2, NotChecked=142, Total=1482 [2024-12-02 12:54:06,196 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 1040 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 3605 mSolverCounterSat, 495 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 5279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 3605 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 1135 IncrementalHoareTripleChecker+Unchecked, 187.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:54:06,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 1096 Invalid, 5279 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [495 Valid, 3605 Invalid, 44 Unknown, 1135 Unchecked, 187.6s Time] [2024-12-02 12:54:06,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2024-12-02 12:54:06,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1024. [2024-12-02 12:54:06,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 685 states have (on average 1.2656934306569343) internal successors, (867), 698 states have internal predecessors, (867), 255 states have call successors, (255), 76 states have call predecessors, (255), 83 states have return successors, (289), 249 states have call predecessors, (289), 251 states have call successors, (289) [2024-12-02 12:54:06,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1411 transitions. [2024-12-02 12:54:06,254 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1411 transitions. Word has length 168 [2024-12-02 12:54:06,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:54:06,255 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1411 transitions. [2024-12-02 12:54:06,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 12 states have internal predecessors, (73), 7 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) [2024-12-02 12:54:06,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1411 transitions. [2024-12-02 12:54:06,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 12:54:06,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:54:06,256 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:54:06,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 12:54:06,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 12:54:06,456 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:54:06,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:54:06,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1035208508, now seen corresponding path program 1 times [2024-12-02 12:54:06,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:54:06,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277225366] [2024-12-02 12:54:06,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:54:06,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:54:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:54:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-12-02 12:54:20,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:54:20,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277225366] [2024-12-02 12:54:20,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277225366] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:54:20,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551930666] [2024-12-02 12:54:20,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:54:20,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:54:20,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:54:20,394 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:54:20,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 12:54:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:54:27,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 4536 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-12-02 12:54:27,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:54:32,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2024-12-02 12:54:33,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:54:33,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 12:54:40,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 17 [2024-12-02 12:54:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 120 proven. 7 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 12:54:51,103 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:55:01,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551930666] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:55:01,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:55:01,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 32 [2024-12-02 12:55:01,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958944257] [2024-12-02 12:55:01,038 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:55:01,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 12:55:01,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:55:01,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 12:55:01,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1231, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 12:55:01,041 INFO L87 Difference]: Start difference. First operand 1024 states and 1411 transitions. Second operand has 32 states, 27 states have (on average 5.333333333333333) internal successors, (144), 29 states have internal predecessors, (144), 15 states have call successors, (46), 4 states have call predecessors, (46), 10 states have return successors, (44), 14 states have call predecessors, (44), 14 states have call successors, (44) [2024-12-02 12:55:05,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:55:09,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:55:13,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:55:18,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:55:22,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:55:26,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:55:31,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:55:35,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:55:39,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:55:44,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:55:48,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:55:53,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:55:57,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:56:01,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:56:06,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:56:10,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:56:14,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:56:19,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:56:23,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:57:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:57:14,950 INFO L93 Difference]: Finished difference Result 2085 states and 2866 transitions. [2024-12-02 12:57:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-02 12:57:14,952 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 5.333333333333333) internal successors, (144), 29 states have internal predecessors, (144), 15 states have call successors, (46), 4 states have call predecessors, (46), 10 states have return successors, (44), 14 states have call predecessors, (44), 14 states have call successors, (44) Word has length 172 [2024-12-02 12:57:14,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:57:14,959 INFO L225 Difference]: With dead ends: 2085 [2024-12-02 12:57:14,959 INFO L226 Difference]: Without dead ends: 1060 [2024-12-02 12:57:14,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=232, Invalid=3074, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 12:57:14,965 INFO L435 NwaCegarLoop]: 421 mSDtfsCounter, 110 mSDsluCounter, 8333 mSDsCounter, 0 mSdLazyCounter, 2664 mSolverCounterSat, 18 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 8754 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2664 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 123.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:57:14,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 8754 Invalid, 2701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2664 Invalid, 19 Unknown, 0 Unchecked, 123.4s Time] [2024-12-02 12:57:14,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2024-12-02 12:57:15,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1024. [2024-12-02 12:57:15,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 685 states have (on average 1.2627737226277371) internal successors, (865), 698 states have internal predecessors, (865), 255 states have call successors, (255), 76 states have call predecessors, (255), 83 states have return successors, (289), 249 states have call predecessors, (289), 251 states have call successors, (289) [2024-12-02 12:57:15,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1409 transitions. [2024-12-02 12:57:15,045 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1409 transitions. Word has length 172 [2024-12-02 12:57:15,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:57:15,045 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1409 transitions. [2024-12-02 12:57:15,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 5.333333333333333) internal successors, (144), 29 states have internal predecessors, (144), 15 states have call successors, (46), 4 states have call predecessors, (46), 10 states have return successors, (44), 14 states have call predecessors, (44), 14 states have call successors, (44) [2024-12-02 12:57:15,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1409 transitions. [2024-12-02 12:57:15,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-12-02 12:57:15,047 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:57:15,047 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:57:15,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 12:57:15,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:57:15,247 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:57:15,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:57:15,248 INFO L85 PathProgramCache]: Analyzing trace with hash 661305666, now seen corresponding path program 2 times [2024-12-02 12:57:15,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:57:15,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093083059] [2024-12-02 12:57:15,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:57:15,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:57:20,463 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:57:20,463 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:57:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-12-02 12:57:29,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:57:29,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093083059] [2024-12-02 12:57:29,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093083059] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:57:29,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966347327] [2024-12-02 12:57:29,994 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:57:29,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:57:29,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:57:29,997 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:57:29,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e217a7e1-edd9-4919-a9fa-ddb8bf0a8389/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process