./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_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_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/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_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/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_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/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 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:51:17,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:51:17,410 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:51:17,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:51:17,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:51:17,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:51:17,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:51:17,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:51:17,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:51:17,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:51:17,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:51:17,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:51:17,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:51:17,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:51:17,480 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:51:17,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:51:17,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:51:17,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:51:17,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:51:17,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:51:17,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:51:17,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:51:17,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:51:17,482 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:51:17,482 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:51:17,482 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:51:17,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:51:17,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:51:17,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:51:17,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:51:17,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:51:17,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:51:17,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:51:17,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:51:17,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:51:17,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:51:17,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:51:17,484 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:51:17,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:51:17,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:51:17,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:51:17,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:51:17,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:51:17,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:51:17,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:51:17,487 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_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/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 -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2024-11-28 03:51:17,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:51:17,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:51:17,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:51:17,874 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:51:17,875 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:51:17,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2024-11-28 03:51:21,707 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/data/9d8a002c5/5639d6419c144341999f2dfa94506f5f/FLAG6ad3e1ea6 [2024-11-28 03:51:22,760 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:51:22,762 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2024-11-28 03:51:22,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/data/9d8a002c5/5639d6419c144341999f2dfa94506f5f/FLAG6ad3e1ea6 [2024-11-28 03:51:22,874 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/data/9d8a002c5/5639d6419c144341999f2dfa94506f5f [2024-11-28 03:51:22,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:51:22,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:51:22,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:51:22,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:51:22,891 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:51:22,892 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:51:22" (1/1) ... [2024-11-28 03:51:22,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b909666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:22, skipping insertion in model container [2024-11-28 03:51:22,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:51:22" (1/1) ... [2024-11-28 03:51:23,065 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:51:23,518 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_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2024-11-28 03:51:23,529 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_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2024-11-28 03:51:25,378 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:25,379 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:25,380 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:25,381 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:25,383 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:25,414 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:25,415 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:25,421 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:25,422 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:26,732 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:26,732 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,235 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,237 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,279 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,280 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,289 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,289 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,309 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,310 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,312 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,314 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,314 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,315 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,315 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:51:27,460 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:51:27,477 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_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2024-11-28 03:51:27,478 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_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2024-11-28 03:51:27,589 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,589 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,589 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,590 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,591 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,602 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,602 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,605 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,605 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8255] [2024-11-28 03:51:27,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,786 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,904 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,905 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,914 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,915 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,919 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,920 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,931 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,932 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,932 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,932 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,933 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,933 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,934 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:51:27,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:51:28,352 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:51:28,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28 WrapperNode [2024-11-28 03:51:28,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:51:28,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:51:28,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:51:28,355 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:51:28,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,637 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 402 [2024-11-28 03:51:28,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:51:28,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:51:28,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:51:28,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:51:28,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,703 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 257, 5, 13]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0]. The 260 writes are split as follows [0, 257, 0, 3]. [2024-11-28 03:51:28,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,737 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:51:28,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:51:28,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:51:28,792 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:51:28,793 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (1/1) ... [2024-11-28 03:51:28,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:51:28,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:51:28,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:51:28,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:51:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-28 03:51:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-28 03:51:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-28 03:51:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-28 03:51:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 03:51:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 03:51:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 03:51:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 03:51:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 03:51:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 03:51:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:51:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:51:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:51:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:51:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:51:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:51:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:51:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:51:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 03:51:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:51:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-28 03:51:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:51:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:51:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:51:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 03:51:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 03:51:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 03:51:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 03:51:28,908 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 03:51:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:51:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:51:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:51:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:51:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2024-11-28 03:51:28,909 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2024-11-28 03:51:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:51:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:51:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:51:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:51:29,456 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:51:29,461 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:51:29,798 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 03:51:37,904 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2024-11-28 03:51:37,904 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2024-11-28 03:51:38,024 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-28 03:51:38,025 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:51:38,045 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:51:38,048 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:51:38,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:51:38 BoogieIcfgContainer [2024-11-28 03:51:38,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:51:38,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:51:38,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:51:38,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:51:38,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:51:22" (1/3) ... [2024-11-28 03:51:38,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1ef228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:51:38, skipping insertion in model container [2024-11-28 03:51:38,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:51:28" (2/3) ... [2024-11-28 03:51:38,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1ef228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:51:38, skipping insertion in model container [2024-11-28 03:51:38,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:51:38" (3/3) ... [2024-11-28 03:51:38,067 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2024-11-28 03:51:38,089 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:51:38,091 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_callback_string_eq_harness.i that has 11 procedures, 110 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:51:38,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:51:38,205 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;@4b55da4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:51:38,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:51:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 03:51:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 03:51:38,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:51:38,234 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-28 03:51:38,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:51:38,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:51:38,244 INFO L85 PathProgramCache]: Analyzing trace with hash 436511225, now seen corresponding path program 1 times [2024-11-28 03:51:38,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:51:38,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392370355] [2024-11-28 03:51:38,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:51:38,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:52:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:52:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:52:44,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:52:44,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392370355] [2024-11-28 03:52:44,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392370355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:52:44,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691110591] [2024-11-28 03:52:44,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:52:44,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:52:44,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:52:44,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:52:44,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:53:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:53:50,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 3973 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:53:50,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:53:51,008 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 03:53:51,008 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:53:51,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691110591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:53:51,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:53:51,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:53:51,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92084816] [2024-11-28 03:53:51,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:53:51,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:53:51,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:53:51,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:53:51,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:53:51,057 INFO L87 Difference]: Start difference. First operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:53:51,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:53:51,113 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2024-11-28 03:53:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:53:51,116 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2024-11-28 03:53:51,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:53:51,125 INFO L225 Difference]: With dead ends: 217 [2024-11-28 03:53:51,125 INFO L226 Difference]: Without dead ends: 104 [2024-11-28 03:53:51,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 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 03:53:51,133 INFO L435 NwaCegarLoop]: 140 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, 140 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 03:53:51,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:53:51,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-28 03:53:51,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-28 03:53:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 03:53:51,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-28 03:53:51,189 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2024-11-28 03:53:51,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:53:51,191 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-28 03:53:51,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 03:53:51,192 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-28 03:53:51,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:53:51,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:53:51,196 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-28 03:53:51,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:53:51,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:53:51,401 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:53:51,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:53:51,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1648273971, now seen corresponding path program 1 times [2024-11-28 03:53:51,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:53:51,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875739524] [2024-11-28 03:53:51,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:53:51,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:54:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:02,425 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 03:55:02,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:02,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875739524] [2024-11-28 03:55:02,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875739524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:02,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:02,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:55:02,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295623881] [2024-11-28 03:55:02,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:02,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:55:02,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:02,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:55:02,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:55:02,429 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 11 states have internal predecessors, (44), 6 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 03:55:04,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:55:04,094 INFO L93 Difference]: Finished difference Result 183 states and 239 transitions. [2024-11-28 03:55:04,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:55:04,097 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 11 states have internal predecessors, (44), 6 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 96 [2024-11-28 03:55:04,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:55:04,100 INFO L225 Difference]: With dead ends: 183 [2024-11-28 03:55:04,100 INFO L226 Difference]: Without dead ends: 135 [2024-11-28 03:55:04,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:55:04,104 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 79 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:55:04,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1364 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:55:04,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-28 03:55:04,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 117. [2024-11-28 03:55:04,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 73 states have internal predecessors, (85), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 03:55:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 152 transitions. [2024-11-28 03:55:04,146 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 152 transitions. Word has length 96 [2024-11-28 03:55:04,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:55:04,150 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 152 transitions. [2024-11-28 03:55:04,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 11 states have internal predecessors, (44), 6 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 03:55:04,150 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 152 transitions. [2024-11-28 03:55:04,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 03:55:04,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:55:04,158 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:04,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:55:04,158 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:55:04,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:04,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1374436190, now seen corresponding path program 1 times [2024-11-28 03:55:04,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:04,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826123837] [2024-11-28 03:55:04,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:04,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:13,691 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:56:13,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:13,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826123837] [2024-11-28 03:56:13,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826123837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:13,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:13,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:56:13,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356756928] [2024-11-28 03:56:13,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:13,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:56:13,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:13,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:56:13,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:56:13,695 INFO L87 Difference]: Start difference. First operand 117 states and 152 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:56:14,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:14,655 INFO L93 Difference]: Finished difference Result 180 states and 231 transitions. [2024-11-28 03:56:14,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:56:14,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) Word has length 105 [2024-11-28 03:56:14,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:14,659 INFO L225 Difference]: With dead ends: 180 [2024-11-28 03:56:14,659 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 03:56:14,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:56:14,663 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 46 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:14,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1125 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:56:14,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 03:56:14,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-28 03:56:14,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 73 states have internal predecessors, (83), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 03:56:14,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 150 transitions. [2024-11-28 03:56:14,687 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 150 transitions. Word has length 105 [2024-11-28 03:56:14,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:14,688 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 150 transitions. [2024-11-28 03:56:14,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:56:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 150 transitions. [2024-11-28 03:56:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 03:56:14,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:14,691 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:14,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:56:14,691 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:14,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:14,692 INFO L85 PathProgramCache]: Analyzing trace with hash 961282207, now seen corresponding path program 1 times [2024-11-28 03:56:14,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:14,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444915374] [2024-11-28 03:56:14,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:14,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-28 03:57:29,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:29,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444915374] [2024-11-28 03:57:29,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444915374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:29,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:57:29,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:57:29,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781441923] [2024-11-28 03:57:29,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:29,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:57:29,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:29,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:57:29,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:57:29,046 INFO L87 Difference]: Start difference. First operand 117 states and 150 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-28 03:57:30,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:30,508 INFO L93 Difference]: Finished difference Result 143 states and 178 transitions. [2024-11-28 03:57:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:57:30,509 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 4 states have call successors, (16) Word has length 114 [2024-11-28 03:57:30,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:30,511 INFO L225 Difference]: With dead ends: 143 [2024-11-28 03:57:30,511 INFO L226 Difference]: Without dead ends: 117 [2024-11-28 03:57:30,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:57:30,513 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 35 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:30,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1321 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:57:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-28 03:57:30,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-28 03:57:30,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 73 states have internal predecessors, (82), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 03:57:30,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 149 transitions. [2024-11-28 03:57:30,530 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 149 transitions. Word has length 114 [2024-11-28 03:57:30,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:30,530 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 149 transitions. [2024-11-28 03:57:30,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 10 states have internal predecessors, (46), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-28 03:57:30,531 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 149 transitions. [2024-11-28 03:57:30,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 03:57:30,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:30,534 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:30,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:57:30,534 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:30,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:30,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1328559809, now seen corresponding path program 1 times [2024-11-28 03:57:30,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:30,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644638823] [2024-11-28 03:57:30,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:30,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-28 03:58:45,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:45,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644638823] [2024-11-28 03:58:45,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644638823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:45,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:45,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:58:45,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772135804] [2024-11-28 03:58:45,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:45,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:58:45,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:45,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:58:45,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:58:45,889 INFO L87 Difference]: Start difference. First operand 117 states and 149 transitions. Second operand has 16 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 12 states have internal predecessors, (49), 5 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:58:48,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:48,214 INFO L93 Difference]: Finished difference Result 140 states and 179 transitions. [2024-11-28 03:58:48,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:58:48,215 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 12 states have internal predecessors, (49), 5 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 4 states have call successors, (17) Word has length 119 [2024-11-28 03:58:48,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:48,217 INFO L225 Difference]: With dead ends: 140 [2024-11-28 03:58:48,217 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 03:58:48,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:58:48,218 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 56 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:48,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1664 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:58:48,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 03:58:48,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2024-11-28 03:58:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 84 states have (on average 1.1428571428571428) internal successors, (96), 86 states have internal predecessors, (96), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:58:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 175 transitions. [2024-11-28 03:58:48,234 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 175 transitions. Word has length 119 [2024-11-28 03:58:48,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:48,234 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 175 transitions. [2024-11-28 03:58:48,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 12 states have internal predecessors, (49), 5 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-28 03:58:48,235 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 175 transitions. [2024-11-28 03:58:48,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 03:58:48,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:48,237 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:58:48,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:58:48,237 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:48,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:48,238 INFO L85 PathProgramCache]: Analyzing trace with hash 487314532, now seen corresponding path program 1 times [2024-11-28 03:58:48,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:48,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185917070] [2024-11-28 03:58:48,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:48,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-28 03:59:58,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:58,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185917070] [2024-11-28 03:59:58,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185917070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:58,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:58,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:59:58,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738545919] [2024-11-28 03:59:58,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:58,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:59:58,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:58,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:59:58,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:59:58,330 INFO L87 Difference]: Start difference. First operand 136 states and 175 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 03:59:59,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:59,595 INFO L93 Difference]: Finished difference Result 187 states and 236 transitions. [2024-11-28 03:59:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:59:59,596 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) Word has length 144 [2024-11-28 03:59:59,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:59,601 INFO L225 Difference]: With dead ends: 187 [2024-11-28 03:59:59,601 INFO L226 Difference]: Without dead ends: 139 [2024-11-28 03:59:59,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:59:59,603 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 26 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:59,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1707 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:59:59,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-28 03:59:59,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2024-11-28 03:59:59,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 84 states have (on average 1.130952380952381) internal successors, (95), 86 states have internal predecessors, (95), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 03:59:59,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 174 transitions. [2024-11-28 03:59:59,686 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 174 transitions. Word has length 144 [2024-11-28 03:59:59,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:59,687 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 174 transitions. [2024-11-28 03:59:59,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-28 03:59:59,691 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 174 transitions. [2024-11-28 03:59:59,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 03:59:59,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:59,694 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:59,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:59:59,696 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:59,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:59,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1652849875, now seen corresponding path program 1 times [2024-11-28 03:59:59,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:59,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666090553] [2024-11-28 03:59:59,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:59,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 04:01:29,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:29,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666090553] [2024-11-28 04:01:29,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666090553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:29,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694520229] [2024-11-28 04:01:29,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:29,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:29,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:29,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:29,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1da5e0e3-6060-4c27-a9fd-c8b3d4c4c13c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:02:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:27,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 4072 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-11-28 04:02:27,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:27,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2024-11-28 04:02:27,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:02:27,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 treesize of output 19 [2024-11-28 04:02:27,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:02:28,027 INFO L349 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2024-11-28 04:02:28,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 31 treesize of output 19 [2024-11-28 04:02:28,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2024-11-28 04:03:20,543 INFO L349 Elim1Store]: treesize reduction 14, result has 96.0 percent of original size [2024-11-28 04:03:20,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 28 case distinctions, treesize of input 232 treesize of output 470