./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_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_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB --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 4e984a9029981b62e4f2c0c4f313850f20633ca16be8aebe99d7cc6e2f39f6fd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:28:24,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:28:25,010 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:28:25,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:28:25,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:28:25,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:28:25,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:28:25,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:28:25,058 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:28:25,058 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:28:25,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:28:25,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:28:25,060 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:28:25,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:28:25,061 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:28:25,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:28:25,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:28:25,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:28:25,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:28:25,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:28:25,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:28:25,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:28:25,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:28:25,063 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:28:25,063 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:28:25,063 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:28:25,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:28:25,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:28:25,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:28:25,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:25,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:28:25,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:28:25,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:28:25,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:28:25,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:25,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:28:25,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:28:25,066 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:28:25,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:28:25,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:28:25,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:28:25,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:28:25,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:28:25,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:28:25,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:28:25,067 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_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 4e984a9029981b62e4f2c0c4f313850f20633ca16be8aebe99d7cc6e2f39f6fd [2024-11-28 04:28:25,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:28:25,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:28:25,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:28:25,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:28:25,446 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:28:25,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i [2024-11-28 04:28:28,713 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/data/decf550b6/c7badbbdacac4ff3ab293b2d0a88df7b/FLAGeab7beaf4 [2024-11-28 04:28:29,430 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:28:29,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i [2024-11-28 04:28:29,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/data/decf550b6/c7badbbdacac4ff3ab293b2d0a88df7b/FLAGeab7beaf4 [2024-11-28 04:28:29,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/data/decf550b6/c7badbbdacac4ff3ab293b2d0a88df7b [2024-11-28 04:28:29,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:28:29,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:28:29,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:29,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:28:29,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:28:29,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:29" (1/1) ... [2024-11-28 04:28:29,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466e2db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:29, skipping insertion in model container [2024-11-28 04:28:29,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:28:29" (1/1) ... [2024-11-28 04:28:29,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:28:30,351 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_4073fc64-ca88-4f5e-adaa-2708d422a472/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4491,4504] [2024-11-28 04:28:30,362 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_4073fc64-ca88-4f5e-adaa-2708d422a472/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4551,4564] [2024-11-28 04:28:31,764 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,765 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,765 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,767 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,768 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,787 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,788 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,791 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,792 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,794 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,796 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,797 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:31,797 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,225 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,227 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,269 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,270 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,279 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,280 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,304 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,305 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,306 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,306 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,307 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,307 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,308 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,362 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_4073fc64-ca88-4f5e-adaa-2708d422a472/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[228146,228159] [2024-11-28 04:28:33,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:33,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:28:33,426 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_4073fc64-ca88-4f5e-adaa-2708d422a472/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4491,4504] [2024-11-28 04:28:33,427 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_4073fc64-ca88-4f5e-adaa-2708d422a472/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[4551,4564] [2024-11-28 04:28:33,527 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,527 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,527 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,528 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,528 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,535 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,535 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,536 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,537 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,538 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,538 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,539 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,539 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2024-11-28 04:28:33,732 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,732 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,741 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,742 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,746 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,746 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,757 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,758 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,758 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,760 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,760 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,760 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,762 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:28:33,835 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_4073fc64-ca88-4f5e-adaa-2708d422a472/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness.i[228146,228159] [2024-11-28 04:28:33,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:28:34,171 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:28:34,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34 WrapperNode [2024-11-28 04:28:34,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:28:34,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:28:34,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:28:34,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:28:34,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,433 INFO L138 Inliner]: procedures = 763, calls = 2450, calls flagged for inlining = 69, calls inlined = 18, statements flattened = 970 [2024-11-28 04:28:34,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:28:34,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:28:34,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:28:34,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:28:34,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,586 INFO L175 MemorySlicer]: Split 320 memory accesses to 11 slices as follows [2, 238, 5, 2, 3, 4, 3, 39, 6, 13, 5]. 74 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 1, 0, 0, 0, 0, 0, 0, 0, 5]. The 250 writes are split as follows [0, 232, 2, 1, 1, 3, 3, 5, 2, 1, 0]. [2024-11-28 04:28:34,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,700 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:28:34,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:28:34,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:28:34,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:28:34,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (1/1) ... [2024-11-28 04:28:34,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:28:34,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:34,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:28:34,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:28:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-28 04:28:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-28 04:28:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-28 04:28:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-28 04:28:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-28 04:28:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-28 04:28:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-28 04:28:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-28 04:28:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-28 04:28:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-28 04:28:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-28 04:28:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2024-11-28 04:28:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2024-11-28 04:28:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2024-11-28 04:28:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2024-11-28 04:28:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2024-11-28 04:28:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2024-11-28 04:28:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:28:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_get_entry_count [2024-11-28 04:28:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_get_entry_count [2024-11-28 04:28:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:28:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:28:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:28:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:28:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:28:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:28:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 04:28:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 04:28:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 04:28:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-28 04:28:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-28 04:28:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:28:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:28:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:28:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:28:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:28:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:28:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:28:34,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:28:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 04:28:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 04:28:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 04:28:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 04:28:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 04:28:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:28:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-28 04:28:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-28 04:28:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:28:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:28:34,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:28:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 04:28:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 04:28:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-28 04:28:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-28 04:28:34,881 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2024-11-28 04:28:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2024-11-28 04:28:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2024-11-28 04:28:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2024-11-28 04:28:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:28:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:28:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 04:28:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 04:28:34,882 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 04:28:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-28 04:28:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2024-11-28 04:28:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:28:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-28 04:28:34,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:28:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:28:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 04:28:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 04:28:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-28 04:28:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 04:28:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-28 04:28:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-28 04:28:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2024-11-28 04:28:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2024-11-28 04:28:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 04:28:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 04:28:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-28 04:28:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-28 04:28:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 04:28:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 04:28:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2024-11-28 04:28:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2024-11-28 04:28:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:28:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:28:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2024-11-28 04:28:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 04:28:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 04:28:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:28:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 04:28:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-28 04:28:34,896 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-28 04:28:35,551 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:28:35,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:28:35,623 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:35,656 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume false; [2024-11-28 04:28:35,657 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !false; [2024-11-28 04:28:36,001 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:36,029 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2024-11-28 04:28:36,030 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2024-11-28 04:28:36,324 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:36,325 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:36,326 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:36,331 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:36,332 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:28:42,769 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume false; [2024-11-28 04:28:42,769 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2024-11-28 04:28:42,769 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !false; [2024-11-28 04:28:42,769 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume false; [2024-11-28 04:28:42,770 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2024-11-28 04:28:42,770 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2024-11-28 04:28:42,770 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2024-11-28 04:28:42,770 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume !false; [2024-11-28 04:28:42,770 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##51: assume false; [2024-11-28 04:28:42,770 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume !false; [2024-11-28 04:28:42,947 INFO L? ?]: Removed 285 outVars from TransFormulas that were not future-live. [2024-11-28 04:28:42,947 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:28:42,977 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:28:42,978 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-28 04:28:42,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:28:42 BoogieIcfgContainer [2024-11-28 04:28:42,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:28:42,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:28:42,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:28:42,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:28:42,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:28:29" (1/3) ... [2024-11-28 04:28:42,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3bab9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:28:42, skipping insertion in model container [2024-11-28 04:28:42,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:28:34" (2/3) ... [2024-11-28 04:28:42,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3bab9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:28:42, skipping insertion in model container [2024-11-28 04:28:42,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:28:42" (3/3) ... [2024-11-28 04:28:42,997 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_eq_harness.i [2024-11-28 04:28:43,024 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:28:43,026 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_eq_harness.i that has 25 procedures, 312 locations, 1 initial locations, 9 loop locations, and 1 error locations. [2024-11-28 04:28:43,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:28:43,141 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;@79e3ebbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:28:43,142 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:28:43,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 204 states have (on average 1.2401960784313726) internal successors, (253), 198 states have internal predecessors, (253), 89 states have call successors, (89), 24 states have call predecessors, (89), 24 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 04:28:43,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-28 04:28:43,182 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:28:43,183 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:28:43,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:28:43,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:28:43,192 INFO L85 PathProgramCache]: Analyzing trace with hash 810534844, now seen corresponding path program 1 times [2024-11-28 04:28:43,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:28:43,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54099544] [2024-11-28 04:28:43,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:43,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:28:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2024-11-28 04:28:51,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:28:51,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54099544] [2024-11-28 04:28:51,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54099544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:28:51,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765353212] [2024-11-28 04:28:51,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:28:51,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:28:51,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:28:51,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:28:51,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:28:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:28:59,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 5303 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:28:59,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:28:59,947 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2024-11-28 04:28:59,947 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:28:59,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765353212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:28:59,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:28:59,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:28:59,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827229515] [2024-11-28 04:28:59,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:28:59,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:28:59,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:28:59,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:28:59,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:28:59,991 INFO L87 Difference]: Start difference. First operand has 312 states, 204 states have (on average 1.2401960784313726) internal successors, (253), 198 states have internal predecessors, (253), 89 states have call successors, (89), 24 states have call predecessors, (89), 24 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 04:29:00,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:00,081 INFO L93 Difference]: Finished difference Result 620 states and 930 transitions. [2024-11-28 04:29:00,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:29:00,084 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 293 [2024-11-28 04:29:00,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:00,096 INFO L225 Difference]: With dead ends: 620 [2024-11-28 04:29:00,097 INFO L226 Difference]: Without dead ends: 306 [2024-11-28 04:29:00,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:29:00,108 INFO L435 NwaCegarLoop]: 417 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:00,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:29:00,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-28 04:29:00,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2024-11-28 04:29:00,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 192 states have (on average 1.2239583333333333) internal successors, (235), 193 states have internal predecessors, (235), 89 states have call successors, (89), 24 states have call predecessors, (89), 24 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-28 04:29:00,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 412 transitions. [2024-11-28 04:29:00,193 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 412 transitions. Word has length 293 [2024-11-28 04:29:00,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:00,194 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 412 transitions. [2024-11-28 04:29:00,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-28 04:29:00,194 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 412 transitions. [2024-11-28 04:29:00,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-28 04:29:00,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:00,203 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:29:00,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:29:00,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:00,404 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:00,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash -5436950, now seen corresponding path program 1 times [2024-11-28 04:29:00,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:00,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419839904] [2024-11-28 04:29:00,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:00,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:08,829 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2024-11-28 04:29:08,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:08,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419839904] [2024-11-28 04:29:08,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419839904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:08,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112367299] [2024-11-28 04:29:08,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:08,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:08,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:08,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:08,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:29:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:16,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 5303 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:29:16,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:17,625 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 [2024-11-28 04:29:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-11-28 04:29:19,234 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:19,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112367299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:19,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:19,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2024-11-28 04:29:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042377280] [2024-11-28 04:29:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:19,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:29:19,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:19,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:29:19,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:29:19,241 INFO L87 Difference]: Start difference. First operand 306 states and 412 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 9 states have internal predecessors, (93), 4 states have call successors, (43), 3 states have call predecessors, (43), 5 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) [2024-11-28 04:29:31,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:31,140 INFO L93 Difference]: Finished difference Result 685 states and 940 transitions. [2024-11-28 04:29:31,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:29:31,141 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 9 states have internal predecessors, (93), 4 states have call successors, (43), 3 states have call predecessors, (43), 5 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) Word has length 293 [2024-11-28 04:29:31,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:31,148 INFO L225 Difference]: With dead ends: 685 [2024-11-28 04:29:31,148 INFO L226 Difference]: Without dead ends: 383 [2024-11-28 04:29:31,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:29:31,151 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 396 mSDsluCounter, 3176 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:31,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 3624 Invalid, 1334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2024-11-28 04:29:31,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-28 04:29:31,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 379. [2024-11-28 04:29:31,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 240 states have (on average 1.2083333333333333) internal successors, (290), 242 states have internal predecessors, (290), 103 states have call successors, (103), 35 states have call predecessors, (103), 35 states have return successors, (119), 101 states have call predecessors, (119), 102 states have call successors, (119) [2024-11-28 04:29:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 512 transitions. [2024-11-28 04:29:31,215 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 512 transitions. Word has length 293 [2024-11-28 04:29:31,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:31,216 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 512 transitions. [2024-11-28 04:29:31,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 9 states have internal predecessors, (93), 4 states have call successors, (43), 3 states have call predecessors, (43), 5 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) [2024-11-28 04:29:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 512 transitions. [2024-11-28 04:29:31,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-28 04:29:31,222 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:31,223 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:29:31,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:29:31,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-28 04:29:31,424 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:31,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1194229524, now seen corresponding path program 1 times [2024-11-28 04:29:31,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:31,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390484823] [2024-11-28 04:29:31,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:31,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2024-11-28 04:29:38,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:38,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390484823] [2024-11-28 04:29:38,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390484823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:38,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367691128] [2024-11-28 04:29:38,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:38,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:38,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:38,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:38,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:29:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:44,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 5298 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:29:44,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:29:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-11-28 04:29:45,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:29:45,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367691128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:45,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:29:45,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 04:29:45,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223844572] [2024-11-28 04:29:45,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:45,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:45,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:45,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:45,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:29:45,459 INFO L87 Difference]: Start difference. First operand 379 states and 512 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-28 04:29:47,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:29:47,394 INFO L93 Difference]: Finished difference Result 691 states and 963 transitions. [2024-11-28 04:29:47,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:47,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 293 [2024-11-28 04:29:47,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:29:47,404 INFO L225 Difference]: With dead ends: 691 [2024-11-28 04:29:47,406 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 04:29:47,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:29:47,411 INFO L435 NwaCegarLoop]: 360 mSDtfsCounter, 427 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:29:47,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1006 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:29:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 04:29:47,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-28 04:29:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 243 states have (on average 1.205761316872428) internal successors, (293), 246 states have internal predecessors, (293), 104 states have call successors, (104), 35 states have call predecessors, (104), 36 states have return successors, (135), 102 states have call predecessors, (135), 103 states have call successors, (135) [2024-11-28 04:29:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 532 transitions. [2024-11-28 04:29:47,499 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 532 transitions. Word has length 293 [2024-11-28 04:29:47,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:29:47,500 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 532 transitions. [2024-11-28 04:29:47,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-28 04:29:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 532 transitions. [2024-11-28 04:29:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 04:29:47,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:29:47,510 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:29:47,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:29:47,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:47,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:29:47,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:47,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1621313459, now seen corresponding path program 1 times [2024-11-28 04:29:47,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:47,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589981491] [2024-11-28 04:29:47,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:47,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2024-11-28 04:29:53,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:53,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589981491] [2024-11-28 04:29:53,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589981491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:29:53,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215297521] [2024-11-28 04:29:53,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:53,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:29:53,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:53,938 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:29:53,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:30:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:00,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 5327 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 04:30:00,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:01,355 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 [2024-11-28 04:30:03,292 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-11-28 04:30:03,292 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:30:03,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215297521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:03,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:03,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5] total 16 [2024-11-28 04:30:03,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378236885] [2024-11-28 04:30:03,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:03,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:30:03,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:03,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:30:03,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:30:03,295 INFO L87 Difference]: Start difference. First operand 384 states and 532 transitions. Second operand has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 5 states have call successors, (44), 3 states have call predecessors, (44), 6 states have return successors, (43), 6 states have call predecessors, (43), 5 states have call successors, (43) [2024-11-28 04:30:17,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:17,239 INFO L93 Difference]: Finished difference Result 710 states and 1043 transitions. [2024-11-28 04:30:17,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:30:17,240 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 5 states have call successors, (44), 3 states have call predecessors, (44), 6 states have return successors, (43), 6 states have call predecessors, (43), 5 states have call successors, (43) Word has length 299 [2024-11-28 04:30:17,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:17,245 INFO L225 Difference]: With dead ends: 710 [2024-11-28 04:30:17,245 INFO L226 Difference]: Without dead ends: 398 [2024-11-28 04:30:17,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:30:17,249 INFO L435 NwaCegarLoop]: 444 mSDtfsCounter, 387 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:17,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 3250 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2024-11-28 04:30:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-28 04:30:17,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 387. [2024-11-28 04:30:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 245 states have (on average 1.2040816326530612) internal successors, (295), 248 states have internal predecessors, (295), 104 states have call successors, (104), 35 states have call predecessors, (104), 37 states have return successors, (140), 103 states have call predecessors, (140), 103 states have call successors, (140) [2024-11-28 04:30:17,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 539 transitions. [2024-11-28 04:30:17,305 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 539 transitions. Word has length 299 [2024-11-28 04:30:17,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:17,306 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 539 transitions. [2024-11-28 04:30:17,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 5 states have call successors, (44), 3 states have call predecessors, (44), 6 states have return successors, (43), 6 states have call predecessors, (43), 5 states have call successors, (43) [2024-11-28 04:30:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 539 transitions. [2024-11-28 04:30:17,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-28 04:30:17,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:17,314 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:30:17,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:30:17,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:17,515 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:17,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:17,515 INFO L85 PathProgramCache]: Analyzing trace with hash 876224982, now seen corresponding path program 1 times [2024-11-28 04:30:17,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:17,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310065577] [2024-11-28 04:30:17,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:17,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2024-11-28 04:30:24,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310065577] [2024-11-28 04:30:24,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310065577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:24,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321336714] [2024-11-28 04:30:24,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:24,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:24,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:24,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:24,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:30:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:32,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 5359 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:30:32,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:30:33,418 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 [2024-11-28 04:30:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-11-28 04:30:34,920 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:30:34,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321336714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:30:34,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:30:34,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2024-11-28 04:30:34,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887220386] [2024-11-28 04:30:34,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:30:34,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:30:34,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:30:34,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:30:34,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:30:34,922 INFO L87 Difference]: Start difference. First operand 387 states and 539 transitions. Second operand has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 9 states have internal predecessors, (103), 4 states have call successors, (46), 3 states have call predecessors, (46), 5 states have return successors, (45), 5 states have call predecessors, (45), 4 states have call successors, (45) [2024-11-28 04:30:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:30:46,784 INFO L93 Difference]: Finished difference Result 680 states and 991 transitions. [2024-11-28 04:30:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:30:46,785 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 9 states have internal predecessors, (103), 4 states have call successors, (46), 3 states have call predecessors, (46), 5 states have return successors, (45), 5 states have call predecessors, (45), 4 states have call successors, (45) Word has length 306 [2024-11-28 04:30:46,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:30:46,790 INFO L225 Difference]: With dead ends: 680 [2024-11-28 04:30:46,791 INFO L226 Difference]: Without dead ends: 394 [2024-11-28 04:30:46,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:30:46,796 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 416 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:30:46,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 2921 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2024-11-28 04:30:46,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-28 04:30:46,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 390. [2024-11-28 04:30:46,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 247 states have (on average 1.2024291497975708) internal successors, (297), 251 states have internal predecessors, (297), 104 states have call successors, (104), 35 states have call predecessors, (104), 38 states have return successors, (154), 103 states have call predecessors, (154), 103 states have call successors, (154) [2024-11-28 04:30:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 555 transitions. [2024-11-28 04:30:46,869 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 555 transitions. Word has length 306 [2024-11-28 04:30:46,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:30:46,870 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 555 transitions. [2024-11-28 04:30:46,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 9 states have internal predecessors, (103), 4 states have call successors, (46), 3 states have call predecessors, (46), 5 states have return successors, (45), 5 states have call predecessors, (45), 4 states have call successors, (45) [2024-11-28 04:30:46,870 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 555 transitions. [2024-11-28 04:30:46,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-28 04:30:46,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:30:46,873 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:30:46,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:30:47,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:47,077 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:30:47,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:30:47,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1123568534, now seen corresponding path program 1 times [2024-11-28 04:30:47,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:30:47,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227397088] [2024-11-28 04:30:47,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:47,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:30:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:30:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2024-11-28 04:30:53,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:30:53,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227397088] [2024-11-28 04:30:53,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227397088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:30:53,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260900037] [2024-11-28 04:30:53,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:30:53,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:30:53,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:30:53,324 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:30:53,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:31:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:00,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 5349 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:31:00,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 404 proven. 166 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-28 04:31:02,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:31:06,250 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2024-11-28 04:31:06,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260900037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:31:06,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:31:06,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2024-11-28 04:31:06,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102349745] [2024-11-28 04:31:06,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:31:06,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:31:06,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:06,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:31:06,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:31:06,253 INFO L87 Difference]: Start difference. First operand 390 states and 555 transitions. Second operand has 11 states, 9 states have (on average 18.0) internal successors, (162), 11 states have internal predecessors, (162), 6 states have call successors, (81), 3 states have call predecessors, (81), 5 states have return successors, (82), 7 states have call predecessors, (82), 6 states have call successors, (82) [2024-11-28 04:31:10,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:10,713 INFO L93 Difference]: Finished difference Result 734 states and 1062 transitions. [2024-11-28 04:31:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:31:10,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 18.0) internal successors, (162), 11 states have internal predecessors, (162), 6 states have call successors, (81), 3 states have call predecessors, (81), 5 states have return successors, (82), 7 states have call predecessors, (82), 6 states have call successors, (82) Word has length 306 [2024-11-28 04:31:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:10,719 INFO L225 Difference]: With dead ends: 734 [2024-11-28 04:31:10,719 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 04:31:10,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 605 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:31:10,723 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 584 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:10,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 2088 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 04:31:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 04:31:10,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-11-28 04:31:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 255 states have (on average 1.196078431372549) internal successors, (305), 259 states have internal predecessors, (305), 104 states have call successors, (104), 35 states have call predecessors, (104), 40 states have return successors, (153), 105 states have call predecessors, (153), 103 states have call successors, (153) [2024-11-28 04:31:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 562 transitions. [2024-11-28 04:31:10,786 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 562 transitions. Word has length 306 [2024-11-28 04:31:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:10,786 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 562 transitions. [2024-11-28 04:31:10,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 18.0) internal successors, (162), 11 states have internal predecessors, (162), 6 states have call successors, (81), 3 states have call predecessors, (81), 5 states have return successors, (82), 7 states have call predecessors, (82), 6 states have call successors, (82) [2024-11-28 04:31:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 562 transitions. [2024-11-28 04:31:10,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-28 04:31:10,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:10,790 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:31:10,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:31:10,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:10,991 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:31:10,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:10,991 INFO L85 PathProgramCache]: Analyzing trace with hash 666385426, now seen corresponding path program 1 times [2024-11-28 04:31:10,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:10,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384362665] [2024-11-28 04:31:10,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:10,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 10 proven. 30 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2024-11-28 04:31:19,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:19,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384362665] [2024-11-28 04:31:19,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384362665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:19,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773299086] [2024-11-28 04:31:19,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:19,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:19,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:19,405 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:19,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:31:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:27,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 5423 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:31:27,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:31:28,186 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 [2024-11-28 04:31:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2024-11-28 04:31:29,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:31:29,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773299086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:31:29,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:31:29,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [7] total 18 [2024-11-28 04:31:29,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854579700] [2024-11-28 04:31:29,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:31:29,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:31:29,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:31:29,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:31:29,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:31:29,979 INFO L87 Difference]: Start difference. First operand 400 states and 562 transitions. Second operand has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (50), 3 states have call predecessors, (50), 6 states have return successors, (49), 6 states have call predecessors, (49), 5 states have call successors, (49) [2024-11-28 04:31:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:31:43,048 INFO L93 Difference]: Finished difference Result 702 states and 1026 transitions. [2024-11-28 04:31:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:31:43,049 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (50), 3 states have call predecessors, (50), 6 states have return successors, (49), 6 states have call predecessors, (49), 5 states have call successors, (49) Word has length 342 [2024-11-28 04:31:43,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:31:43,054 INFO L225 Difference]: With dead ends: 702 [2024-11-28 04:31:43,054 INFO L226 Difference]: Without dead ends: 408 [2024-11-28 04:31:43,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:31:43,058 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 411 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:31:43,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 2813 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2024-11-28 04:31:43,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-28 04:31:43,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 397. [2024-11-28 04:31:43,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 253 states have (on average 1.1976284584980237) internal successors, (303), 256 states have internal predecessors, (303), 104 states have call successors, (104), 35 states have call predecessors, (104), 39 states have return successors, (136), 105 states have call predecessors, (136), 103 states have call successors, (136) [2024-11-28 04:31:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 543 transitions. [2024-11-28 04:31:43,110 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 543 transitions. Word has length 342 [2024-11-28 04:31:43,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:31:43,111 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 543 transitions. [2024-11-28 04:31:43,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.909090909090908) internal successors, (120), 10 states have internal predecessors, (120), 5 states have call successors, (50), 3 states have call predecessors, (50), 6 states have return successors, (49), 6 states have call predecessors, (49), 5 states have call successors, (49) [2024-11-28 04:31:43,111 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 543 transitions. [2024-11-28 04:31:43,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-28 04:31:43,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:31:43,116 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:31:43,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:31:43,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:43,317 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:31:43,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:31:43,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2033219196, now seen corresponding path program 1 times [2024-11-28 04:31:43,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:31:43,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619095601] [2024-11-28 04:31:43,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:43,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:31:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:31:54,533 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 874 trivial. 0 not checked. [2024-11-28 04:31:54,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:31:54,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619095601] [2024-11-28 04:31:54,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619095601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:31:54,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573045105] [2024-11-28 04:31:54,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:31:54,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:31:54,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:31:54,536 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:31:54,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:32:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:03,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 5487 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 04:32:03,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:03,589 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 [2024-11-28 04:32:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 555 proven. 0 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2024-11-28 04:32:08,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:08,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573045105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:08,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:08,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 17 [2024-11-28 04:32:08,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343122436] [2024-11-28 04:32:08,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:08,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:32:08,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:08,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:32:08,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:32:08,844 INFO L87 Difference]: Start difference. First operand 397 states and 543 transitions. Second operand has 13 states, 13 states have (on average 10.0) internal successors, (130), 12 states have internal predecessors, (130), 6 states have call successors, (50), 3 states have call predecessors, (50), 6 states have return successors, (49), 7 states have call predecessors, (49), 6 states have call successors, (49) [2024-11-28 04:32:19,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:19,199 INFO L93 Difference]: Finished difference Result 630 states and 904 transitions. [2024-11-28 04:32:19,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:32:19,200 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.0) internal successors, (130), 12 states have internal predecessors, (130), 6 states have call successors, (50), 3 states have call predecessors, (50), 6 states have return successors, (49), 7 states have call predecessors, (49), 6 states have call successors, (49) Word has length 356 [2024-11-28 04:32:19,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:19,205 INFO L225 Difference]: With dead ends: 630 [2024-11-28 04:32:19,205 INFO L226 Difference]: Without dead ends: 404 [2024-11-28 04:32:19,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 335 SyntacticMatches, 18 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:32:19,208 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 398 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:19,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 3043 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-28 04:32:19,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-28 04:32:19,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 400. [2024-11-28 04:32:19,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 255 states have (on average 1.196078431372549) internal successors, (305), 259 states have internal predecessors, (305), 104 states have call successors, (104), 35 states have call predecessors, (104), 40 states have return successors, (145), 105 states have call predecessors, (145), 103 states have call successors, (145) [2024-11-28 04:32:19,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 554 transitions. [2024-11-28 04:32:19,259 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 554 transitions. Word has length 356 [2024-11-28 04:32:19,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:19,260 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 554 transitions. [2024-11-28 04:32:19,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.0) internal successors, (130), 12 states have internal predecessors, (130), 6 states have call successors, (50), 3 states have call predecessors, (50), 6 states have return successors, (49), 7 states have call predecessors, (49), 6 states have call successors, (49) [2024-11-28 04:32:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 554 transitions. [2024-11-28 04:32:19,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-28 04:32:19,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:19,264 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:32:19,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:32:19,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:19,465 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:19,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:19,465 INFO L85 PathProgramCache]: Analyzing trace with hash 661411898, now seen corresponding path program 1 times [2024-11-28 04:32:19,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:19,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237939503] [2024-11-28 04:32:19,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:19,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2024-11-28 04:32:25,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:25,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237939503] [2024-11-28 04:32:25,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237939503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:25,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529833719] [2024-11-28 04:32:25,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:25,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:25,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:25,584 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:25,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:32:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:33,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 5482 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:32:33,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 186 proven. 413 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-28 04:32:35,472 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:32:39,532 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2024-11-28 04:32:39,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529833719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:32:39,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:32:39,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 14 [2024-11-28 04:32:39,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371832643] [2024-11-28 04:32:39,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:32:39,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:32:39,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:39,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:32:39,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:32:39,535 INFO L87 Difference]: Start difference. First operand 400 states and 554 transitions. Second operand has 14 states, 14 states have (on average 11.214285714285714) internal successors, (157), 14 states have internal predecessors, (157), 10 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (85), 10 states have call predecessors, (85), 10 states have call successors, (85) [2024-11-28 04:32:42,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:42,497 INFO L93 Difference]: Finished difference Result 629 states and 893 transitions. [2024-11-28 04:32:42,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:32:42,498 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.214285714285714) internal successors, (157), 14 states have internal predecessors, (157), 10 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (85), 10 states have call predecessors, (85), 10 states have call successors, (85) Word has length 356 [2024-11-28 04:32:42,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:42,502 INFO L225 Difference]: With dead ends: 629 [2024-11-28 04:32:42,502 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 04:32:42,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 704 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:32:42,504 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 425 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:42,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 2661 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 04:32:42,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 04:32:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-11-28 04:32:42,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 255 states have (on average 1.196078431372549) internal successors, (305), 259 states have internal predecessors, (305), 104 states have call successors, (104), 35 states have call predecessors, (104), 40 states have return successors, (140), 105 states have call predecessors, (140), 103 states have call successors, (140) [2024-11-28 04:32:42,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 549 transitions. [2024-11-28 04:32:42,604 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 549 transitions. Word has length 356 [2024-11-28 04:32:42,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:42,605 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 549 transitions. [2024-11-28 04:32:42,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.214285714285714) internal successors, (157), 14 states have internal predecessors, (157), 10 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (85), 10 states have call predecessors, (85), 10 states have call successors, (85) [2024-11-28 04:32:42,605 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 549 transitions. [2024-11-28 04:32:42,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-28 04:32:42,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:42,608 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 04:32:42,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:32:42,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 04:32:42,809 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:42,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:42,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1248863946, now seen corresponding path program 2 times [2024-11-28 04:32:42,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:42,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28645265] [2024-11-28 04:32:42,810 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:32:42,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:48,930 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:32:48,930 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:32:56,240 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 18 proven. 38 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2024-11-28 04:32:56,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:56,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28645265] [2024-11-28 04:32:56,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28645265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:56,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038996475] [2024-11-28 04:32:56,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:32:56,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:56,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:56,242 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:56,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4073fc64-ca88-4f5e-adaa-2708d422a472/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process