./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.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_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/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_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/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_106cb462-a704-45a9-94cc-eb75b5a24a46/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 190ae31efe96144321a53f6fa3a58be363d46a0faaff78a47cf06f9f2e955d78 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:31:56,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:31:56,179 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:31:56,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:31:56,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:31:56,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:31:56,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:31:56,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:31:56,218 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:31:56,218 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:31:56,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:31:56,219 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:31:56,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:31:56,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:31:56,220 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:31:56,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:31:56,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:31:56,221 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:31:56,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:31:56,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:31:56,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:31:56,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:31:56,221 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:31:56,221 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:31:56,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:31:56,221 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:31:56,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:31:56,222 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:31:56,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:31:56,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:31:56,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:31:56,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:31:56,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:31:56,223 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:31:56,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:31:56,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:31:56,224 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_106cb462-a704-45a9-94cc-eb75b5a24a46/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 -> 190ae31efe96144321a53f6fa3a58be363d46a0faaff78a47cf06f9f2e955d78 [2024-11-28 04:31:56,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:31:56,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:31:56,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:31:56,545 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:31:56,546 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:31:56,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.i [2024-11-28 04:31:59,541 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/data/0b951b89f/e9bcc7206bbe47ffadc66a95baf5e647/FLAG580c6a636 [2024-11-28 04:32:00,190 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:32:00,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.i [2024-11-28 04:32:00,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/data/0b951b89f/e9bcc7206bbe47ffadc66a95baf5e647/FLAG580c6a636 [2024-11-28 04:32:00,272 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/data/0b951b89f/e9bcc7206bbe47ffadc66a95baf5e647 [2024-11-28 04:32:00,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:32:00,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:32:00,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:32:00,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:32:00,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:32:00,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:00" (1/1) ... [2024-11-28 04:32:00,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f3ea16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:00, skipping insertion in model container [2024-11-28 04:32:00,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:00" (1/1) ... [2024-11-28 04:32:00,429 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:32:00,718 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_106cb462-a704-45a9-94cc-eb75b5a24a46/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.i[4495,4508] [2024-11-28 04:32:00,728 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_106cb462-a704-45a9-94cc-eb75b5a24a46/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.i[4555,4568] [2024-11-28 04:32:02,060 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,061 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,061 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,062 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,064 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,085 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,086 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,089 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,089 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,092 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,093 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,094 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:02,095 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,596 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,598 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,634 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,635 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,649 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,649 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,671 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,672 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,673 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,673 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,673 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,674 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,674 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,732 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_106cb462-a704-45a9-94cc-eb75b5a24a46/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.i[230039,230052] [2024-11-28 04:32:03,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:32:03,782 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:32:03,804 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_106cb462-a704-45a9-94cc-eb75b5a24a46/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.i[4495,4508] [2024-11-28 04:32:03,804 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_106cb462-a704-45a9-94cc-eb75b5a24a46/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.i[4555,4568] [2024-11-28 04:32:03,907 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,907 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,908 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,908 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,909 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,919 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,920 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,921 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,921 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,922 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,923 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,923 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:03,923 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7544-7555] [2024-11-28 04:32:04,130 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,131 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,142 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,143 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,147 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,147 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,162 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,163 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,164 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,165 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,166 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,166 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,167 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:32:04,261 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_106cb462-a704-45a9-94cc-eb75b5a24a46/sv-benchmarks/c/aws-c-common/aws_hash_table_remove_harness_negated.i[230039,230052] [2024-11-28 04:32:04,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:32:04,587 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:32:04,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04 WrapperNode [2024-11-28 04:32:04,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:32:04,591 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:32:04,591 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:32:04,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:32:04,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:04,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:04,894 INFO L138 Inliner]: procedures = 764, calls = 2494, calls flagged for inlining = 70, calls inlined = 19, statements flattened = 1095 [2024-11-28 04:32:04,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:32:04,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:32:04,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:32:04,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:32:04,915 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:04,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:04,924 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:05,061 INFO L175 MemorySlicer]: Split 368 memory accesses to 12 slices as follows [2, 4, 3, 72, 2, 7, 3, 14, 243, 2, 15, 1]. 66 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 10, 11, 0, 0, 0]. The 256 writes are split as follows [0, 2, 3, 10, 1, 3, 2, 0, 232, 1, 1, 1]. [2024-11-28 04:32:05,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:05,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:05,130 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:05,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:05,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:05,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:05,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:05,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:32:05,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:32:05,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:32:05,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:32:05,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (1/1) ... [2024-11-28 04:32:05,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:32:05,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:05,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:32:05,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:32:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-28 04:32:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-28 04:32:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-28 04:32:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2024-11-28 04:32:05,328 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2024-11-28 04:32:05,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:32:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 04:32:05,328 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:32:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:32:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 04:32:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 04:32:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 04:32:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 04:32:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 04:32:05,334 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 04:32:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:32:05,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:32:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-11-28 04:32:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-11-28 04:32:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:32:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:32:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-11-28 04:32:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-11-28 04:32:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:32:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:32:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:32:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 04:32:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2024-11-28 04:32:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2024-11-28 04:32:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2024-11-28 04:32:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:32:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 04:32:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-28 04:32:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-28 04:32:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-28 04:32:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-28 04:32:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2024-11-28 04:32:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2024-11-28 04:32:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:32:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:32:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:32:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-28 04:32:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-28 04:32:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:32:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:32:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:32:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:32:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:32:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-11-28 04:32:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-28 04:32:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 04:32:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-28 04:32:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-28 04:32:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 04:32:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2024-11-28 04:32:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 04:32:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 04:32:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2024-11-28 04:32:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2024-11-28 04:32:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-28 04:32:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-28 04:32:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-28 04:32:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-28 04:32:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2024-11-28 04:32:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2024-11-28 04:32:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 04:32:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 04:32:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:32:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:32:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:32:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:32:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:32:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:32:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:32:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:32:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 04:32:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 04:32:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 04:32:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 04:32:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-11-28 04:32:05,352 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-11-28 04:32:05,880 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:32:05,883 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:32:05,940 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:32:05,979 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume false; [2024-11-28 04:32:05,980 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !false; [2024-11-28 04:32:06,262 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:32:06,269 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:32:06,439 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2024-11-28 04:32:06,439 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2024-11-28 04:32:06,439 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##49: assume !false; [2024-11-28 04:32:06,439 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume false; [2024-11-28 04:32:06,440 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:32:06,466 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2024-11-28 04:32:06,466 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2024-11-28 04:32:06,723 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:32:06,724 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:32:12,657 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2024-11-28 04:32:12,658 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2024-11-28 04:32:12,658 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2024-11-28 04:32:12,658 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2024-11-28 04:32:12,832 INFO L? ?]: Removed 314 outVars from TransFormulas that were not future-live. [2024-11-28 04:32:12,832 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:32:12,851 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:32:12,851 INFO L312 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-28 04:32:12,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:12 BoogieIcfgContainer [2024-11-28 04:32:12,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:32:12,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:32:12,855 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:32:12,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:32:12,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:32:00" (1/3) ... [2024-11-28 04:32:12,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64beaeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:32:12, skipping insertion in model container [2024-11-28 04:32:12,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:04" (2/3) ... [2024-11-28 04:32:12,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64beaeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:32:12, skipping insertion in model container [2024-11-28 04:32:12,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:12" (3/3) ... [2024-11-28 04:32:12,863 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_remove_harness_negated.i [2024-11-28 04:32:12,881 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:32:12,883 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_remove_harness_negated.i that has 28 procedures, 336 locations, 1 initial locations, 9 loop locations, and 1 error locations. [2024-11-28 04:32:12,971 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:32:12,990 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;@369cdf4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:32:12,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:32:12,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 336 states, 226 states have (on average 1.2654867256637168) internal successors, (286), 221 states have internal predecessors, (286), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:32:13,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:32:13,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:13,022 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:13,023 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:13,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:13,033 INFO L85 PathProgramCache]: Analyzing trace with hash 889445650, now seen corresponding path program 1 times [2024-11-28 04:32:13,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:13,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226555082] [2024-11-28 04:32:13,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:13,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2024-11-28 04:32:21,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:21,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226555082] [2024-11-28 04:32:21,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226555082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:21,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723989670] [2024-11-28 04:32:21,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:21,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:21,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:21,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:21,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:32:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:30,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 4563 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:32:30,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:30,600 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2024-11-28 04:32:30,600 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:30,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723989670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:30,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:30,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:32:30,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168745001] [2024-11-28 04:32:30,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:30,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:32:30,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:30,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:32:30,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:32:30,636 INFO L87 Difference]: Start difference. First operand has 336 states, 226 states have (on average 1.2654867256637168) internal successors, (286), 221 states have internal predecessors, (286), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-28 04:32:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:30,742 INFO L93 Difference]: Finished difference Result 666 states and 980 transitions. [2024-11-28 04:32:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:32:30,745 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 182 [2024-11-28 04:32:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:30,761 INFO L225 Difference]: With dead ends: 666 [2024-11-28 04:32:30,761 INFO L226 Difference]: Without dead ends: 328 [2024-11-28 04:32:30,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 183 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 04:32:30,777 INFO L435 NwaCegarLoop]: 444 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, 444 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 04:32:30,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:32:30,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-28 04:32:30,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2024-11-28 04:32:30,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 213 states have (on average 1.2347417840375587) internal successors, (263), 215 states have internal predecessors, (263), 87 states have call successors, (87), 27 states have call predecessors, (87), 27 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-28 04:32:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 435 transitions. [2024-11-28 04:32:30,877 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 435 transitions. Word has length 182 [2024-11-28 04:32:30,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:30,879 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 435 transitions. [2024-11-28 04:32:30,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-28 04:32:30,879 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 435 transitions. [2024-11-28 04:32:30,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:32:30,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:30,884 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:32:30,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:32:31,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:32:31,085 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:31,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:31,086 INFO L85 PathProgramCache]: Analyzing trace with hash 670941208, now seen corresponding path program 1 times [2024-11-28 04:32:31,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:31,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825515094] [2024-11-28 04:32:31,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:31,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:38,811 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2024-11-28 04:32:38,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:38,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825515094] [2024-11-28 04:32:38,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825515094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:38,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:32:38,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:32:38,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385562489] [2024-11-28 04:32:38,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:38,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:32:38,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:38,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:32:38,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:38,817 INFO L87 Difference]: Start difference. First operand 328 states and 435 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-28 04:32:39,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:32:39,047 INFO L93 Difference]: Finished difference Result 619 states and 825 transitions. [2024-11-28 04:32:39,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:32:39,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 182 [2024-11-28 04:32:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:32:39,051 INFO L225 Difference]: With dead ends: 619 [2024-11-28 04:32:39,052 INFO L226 Difference]: Without dead ends: 333 [2024-11-28 04:32:39,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:32:39,054 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 0 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:32:39,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1724 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:32:39,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-28 04:32:39,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-28 04:32:39,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 217 states have (on average 1.2304147465437787) internal successors, (267), 219 states have internal predecessors, (267), 87 states have call successors, (87), 27 states have call predecessors, (87), 28 states have return successors, (86), 86 states have call predecessors, (86), 85 states have call successors, (86) [2024-11-28 04:32:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 440 transitions. [2024-11-28 04:32:39,082 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 440 transitions. Word has length 182 [2024-11-28 04:32:39,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:32:39,083 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 440 transitions. [2024-11-28 04:32:39,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-28 04:32:39,083 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 440 transitions. [2024-11-28 04:32:39,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:32:39,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:32:39,087 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:39,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:32:39,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:32:39,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:32:39,088 INFO L85 PathProgramCache]: Analyzing trace with hash -22658712, now seen corresponding path program 1 times [2024-11-28 04:32:39,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:32:39,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361164724] [2024-11-28 04:32:39,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:39,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:32:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:49,803 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 04:32:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:32:49,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361164724] [2024-11-28 04:32:49,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361164724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:32:49,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589986948] [2024-11-28 04:32:49,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:32:49,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:32:49,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:32:49,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:32:49,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:32:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:32:57,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 4567 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:32:57,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:32:58,049 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 04:32:59,392 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-28 04:32:59,392 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:32:59,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589986948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:32:59,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:32:59,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2024-11-28 04:32:59,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370230206] [2024-11-28 04:32:59,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:32:59,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:32:59,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:32:59,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:32:59,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:32:59,400 INFO L87 Difference]: Start difference. First operand 333 states and 440 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-28 04:33:06,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:06,631 INFO L93 Difference]: Finished difference Result 636 states and 851 transitions. [2024-11-28 04:33:06,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:33:06,632 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 188 [2024-11-28 04:33:06,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:06,637 INFO L225 Difference]: With dead ends: 636 [2024-11-28 04:33:06,637 INFO L226 Difference]: Without dead ends: 364 [2024-11-28 04:33:06,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:33:06,640 INFO L435 NwaCegarLoop]: 409 mSDtfsCounter, 394 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 2587 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:06,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 2587 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-28 04:33:06,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-28 04:33:06,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 354. [2024-11-28 04:33:06,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 234 states have (on average 1.2264957264957266) internal successors, (287), 237 states have internal predecessors, (287), 87 states have call successors, (87), 30 states have call predecessors, (87), 32 states have return successors, (89), 86 states have call predecessors, (89), 85 states have call successors, (89) [2024-11-28 04:33:06,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 463 transitions. [2024-11-28 04:33:06,694 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 463 transitions. Word has length 188 [2024-11-28 04:33:06,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:06,695 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 463 transitions. [2024-11-28 04:33:06,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-28 04:33:06,695 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 463 transitions. [2024-11-28 04:33:06,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 04:33:06,699 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:06,699 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:06,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:33:06,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:06,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:06,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:06,901 INFO L85 PathProgramCache]: Analyzing trace with hash -750765332, now seen corresponding path program 1 times [2024-11-28 04:33:06,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:06,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657520718] [2024-11-28 04:33:06,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:06,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:14,333 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 04:33:14,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:14,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657520718] [2024-11-28 04:33:14,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657520718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:14,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062589129] [2024-11-28 04:33:14,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:14,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:14,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:14,337 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:14,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:33:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:21,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 4557 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:33:21,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:22,530 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-28 04:33:22,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:33:22,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062589129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:22,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:22,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 04:33:22,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445140748] [2024-11-28 04:33:22,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:22,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:33:22,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:22,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:33:22,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:33:22,533 INFO L87 Difference]: Start difference. First operand 354 states and 463 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-28 04:33:24,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:24,214 INFO L93 Difference]: Finished difference Result 636 states and 849 transitions. [2024-11-28 04:33:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:33:24,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 188 [2024-11-28 04:33:24,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:24,219 INFO L225 Difference]: With dead ends: 636 [2024-11-28 04:33:24,219 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 04:33:24,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:33:24,221 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 446 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:24,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1104 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:33:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 04:33:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 356. [2024-11-28 04:33:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 235 states have (on average 1.225531914893617) internal successors, (288), 238 states have internal predecessors, (288), 88 states have call successors, (88), 30 states have call predecessors, (88), 32 states have return successors, (90), 87 states have call predecessors, (90), 86 states have call successors, (90) [2024-11-28 04:33:24,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 466 transitions. [2024-11-28 04:33:24,278 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 466 transitions. Word has length 188 [2024-11-28 04:33:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:24,281 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 466 transitions. [2024-11-28 04:33:24,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-28 04:33:24,281 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 466 transitions. [2024-11-28 04:33:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-28 04:33:24,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:24,285 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:33:24,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:33:24,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-28 04:33:24,486 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:24,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash 834798456, now seen corresponding path program 1 times [2024-11-28 04:33:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:24,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147176415] [2024-11-28 04:33:24,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:32,702 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2024-11-28 04:33:32,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:32,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147176415] [2024-11-28 04:33:32,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147176415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:32,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771815127] [2024-11-28 04:33:32,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:32,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:32,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:32,706 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:32,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:33:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:40,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 4615 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:33:40,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:33:42,139 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-28 04:33:42,139 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:33:42,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771815127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:33:42,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:33:42,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2024-11-28 04:33:42,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895149639] [2024-11-28 04:33:42,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:33:42,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:33:42,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:33:42,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:33:42,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:33:42,142 INFO L87 Difference]: Start difference. First operand 356 states and 466 transitions. Second operand has 10 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-28 04:33:44,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:33:44,622 INFO L93 Difference]: Finished difference Result 619 states and 837 transitions. [2024-11-28 04:33:44,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:33:44,623 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 200 [2024-11-28 04:33:44,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:33:44,629 INFO L225 Difference]: With dead ends: 619 [2024-11-28 04:33:44,629 INFO L226 Difference]: Without dead ends: 368 [2024-11-28 04:33:44,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:33:44,632 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 39 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:33:44,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 3180 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:33:44,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-28 04:33:44,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 362. [2024-11-28 04:33:44,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 239 states have (on average 1.2217573221757323) internal successors, (292), 243 states have internal predecessors, (292), 88 states have call successors, (88), 30 states have call predecessors, (88), 34 states have return successors, (104), 88 states have call predecessors, (104), 86 states have call successors, (104) [2024-11-28 04:33:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 484 transitions. [2024-11-28 04:33:44,694 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 484 transitions. Word has length 200 [2024-11-28 04:33:44,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:33:44,695 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 484 transitions. [2024-11-28 04:33:44,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-28 04:33:44,695 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 484 transitions. [2024-11-28 04:33:44,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-28 04:33:44,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:33:44,698 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:33:44,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:33:44,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:44,899 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:33:44,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:33:44,900 INFO L85 PathProgramCache]: Analyzing trace with hash -684072656, now seen corresponding path program 1 times [2024-11-28 04:33:44,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:33:44,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177253848] [2024-11-28 04:33:44,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:44,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:33:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:33:52,969 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-28 04:33:52,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:33:52,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177253848] [2024-11-28 04:33:52,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177253848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:33:52,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854183098] [2024-11-28 04:33:52,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:33:52,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:33:52,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:33:52,973 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:33:52,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:34:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:00,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 4647 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:34:00,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:01,232 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-11-28 04:34:01,232 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:34:01,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854183098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:01,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:34:01,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2024-11-28 04:34:01,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233193057] [2024-11-28 04:34:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:01,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:34:01,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:01,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:34:01,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:34:01,235 INFO L87 Difference]: Start difference. First operand 362 states and 484 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-28 04:34:03,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:03,471 INFO L93 Difference]: Finished difference Result 653 states and 887 transitions. [2024-11-28 04:34:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:34:03,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 207 [2024-11-28 04:34:03,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:03,476 INFO L225 Difference]: With dead ends: 653 [2024-11-28 04:34:03,476 INFO L226 Difference]: Without dead ends: 368 [2024-11-28 04:34:03,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:34:03,479 INFO L435 NwaCegarLoop]: 408 mSDtfsCounter, 1 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:03,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3206 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 04:34:03,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-28 04:34:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 362. [2024-11-28 04:34:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 239 states have (on average 1.2217573221757323) internal successors, (292), 243 states have internal predecessors, (292), 88 states have call successors, (88), 30 states have call predecessors, (88), 34 states have return successors, (103), 88 states have call predecessors, (103), 86 states have call successors, (103) [2024-11-28 04:34:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 483 transitions. [2024-11-28 04:34:03,528 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 483 transitions. Word has length 207 [2024-11-28 04:34:03,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:03,530 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 483 transitions. [2024-11-28 04:34:03,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (35), 2 states have call predecessors, (35), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-28 04:34:03,530 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 483 transitions. [2024-11-28 04:34:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:34:03,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:03,536 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:03,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:34:03,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 04:34:03,737 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:03,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:03,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1802709128, now seen corresponding path program 2 times [2024-11-28 04:34:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:03,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332298455] [2024-11-28 04:34:03,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:34:03,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:09,602 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:34:09,602 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:34:14,678 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-11-28 04:34:14,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:14,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332298455] [2024-11-28 04:34:14,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332298455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:14,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:14,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:34:14,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400864158] [2024-11-28 04:34:14,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:14,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:34:14,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:14,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:34:14,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:34:14,681 INFO L87 Difference]: Start difference. First operand 362 states and 483 transitions. Second operand has 11 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 5 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2024-11-28 04:34:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:18,612 INFO L93 Difference]: Finished difference Result 626 states and 852 transitions. [2024-11-28 04:34:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:34:18,613 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 5 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) Word has length 214 [2024-11-28 04:34:18,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:18,617 INFO L225 Difference]: With dead ends: 626 [2024-11-28 04:34:18,617 INFO L226 Difference]: Without dead ends: 372 [2024-11-28 04:34:18,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:34:18,620 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 65 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:18,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 3417 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 04:34:18,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-28 04:34:18,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 362. [2024-11-28 04:34:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 239 states have (on average 1.217573221757322) internal successors, (291), 243 states have internal predecessors, (291), 88 states have call successors, (88), 30 states have call predecessors, (88), 34 states have return successors, (103), 88 states have call predecessors, (103), 86 states have call successors, (103) [2024-11-28 04:34:18,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 482 transitions. [2024-11-28 04:34:18,656 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 482 transitions. Word has length 214 [2024-11-28 04:34:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:18,657 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 482 transitions. [2024-11-28 04:34:18,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 5 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2024-11-28 04:34:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 482 transitions. [2024-11-28 04:34:18,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-28 04:34:18,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:18,660 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:18,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:34:18,661 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:18,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:18,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1554562634, now seen corresponding path program 1 times [2024-11-28 04:34:18,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:18,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092546234] [2024-11-28 04:34:18,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:18,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-11-28 04:34:24,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:24,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092546234] [2024-11-28 04:34:24,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092546234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:24,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:24,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:34:24,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654348496] [2024-11-28 04:34:24,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:24,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:34:24,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:24,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:34:24,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:34:24,923 INFO L87 Difference]: Start difference. First operand 362 states and 482 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-28 04:34:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:25,624 INFO L93 Difference]: Finished difference Result 613 states and 830 transitions. [2024-11-28 04:34:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:34:25,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 214 [2024-11-28 04:34:25,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:25,629 INFO L225 Difference]: With dead ends: 613 [2024-11-28 04:34:25,629 INFO L226 Difference]: Without dead ends: 355 [2024-11-28 04:34:25,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:34:25,631 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 61 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:25,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1986 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:34:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-28 04:34:25,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2024-11-28 04:34:25,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 234 states have (on average 1.2136752136752136) internal successors, (284), 237 states have internal predecessors, (284), 87 states have call successors, (87), 30 states have call predecessors, (87), 33 states have return successors, (98), 87 states have call predecessors, (98), 85 states have call successors, (98) [2024-11-28 04:34:25,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 469 transitions. [2024-11-28 04:34:25,665 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 469 transitions. Word has length 214 [2024-11-28 04:34:25,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:25,666 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 469 transitions. [2024-11-28 04:34:25,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-28 04:34:25,666 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 469 transitions. [2024-11-28 04:34:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 04:34:25,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:25,670 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:25,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:34:25,670 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:25,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash -111562320, now seen corresponding path program 1 times [2024-11-28 04:34:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:25,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835053815] [2024-11-28 04:34:25,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2024-11-28 04:34:33,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:33,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835053815] [2024-11-28 04:34:33,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835053815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:34:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668539115] [2024-11-28 04:34:33,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:33,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:33,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:33,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:34:33,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:34:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:41,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 4703 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:34:41,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:34:42,560 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 225 proven. 3 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-28 04:34:42,560 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:34:46,797 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 45 proven. 11 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2024-11-28 04:34:46,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668539115] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:34:46,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:34:46,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 11] total 23 [2024-11-28 04:34:46,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388868978] [2024-11-28 04:34:46,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:34:46,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:34:46,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:46,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:34:46,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:34:46,801 INFO L87 Difference]: Start difference. First operand 355 states and 469 transitions. Second operand has 23 states, 20 states have (on average 5.3) internal successors, (106), 18 states have internal predecessors, (106), 6 states have call successors, (45), 3 states have call predecessors, (45), 9 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) [2024-11-28 04:34:53,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:53,283 INFO L93 Difference]: Finished difference Result 597 states and 804 transitions. [2024-11-28 04:34:53,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:34:53,284 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 5.3) internal successors, (106), 18 states have internal predecessors, (106), 6 states have call successors, (45), 3 states have call predecessors, (45), 9 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) Word has length 220 [2024-11-28 04:34:53,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:53,288 INFO L225 Difference]: With dead ends: 597 [2024-11-28 04:34:53,288 INFO L226 Difference]: Without dead ends: 353 [2024-11-28 04:34:53,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:34:53,291 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 40 mSDsluCounter, 6512 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:53,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 6906 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-28 04:34:53,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-28 04:34:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 351. [2024-11-28 04:34:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 231 states have (on average 1.2164502164502164) internal successors, (281), 234 states have internal predecessors, (281), 87 states have call successors, (87), 30 states have call predecessors, (87), 32 states have return successors, (93), 86 states have call predecessors, (93), 85 states have call successors, (93) [2024-11-28 04:34:53,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 461 transitions. [2024-11-28 04:34:53,324 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 461 transitions. Word has length 220 [2024-11-28 04:34:53,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:53,325 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 461 transitions. [2024-11-28 04:34:53,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 5.3) internal successors, (106), 18 states have internal predecessors, (106), 6 states have call successors, (45), 3 states have call predecessors, (45), 9 states have return successors, (46), 7 states have call predecessors, (46), 6 states have call successors, (46) [2024-11-28 04:34:53,326 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 461 transitions. [2024-11-28 04:34:53,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-28 04:34:53,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:53,328 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:53,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:34:53,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:34:53,528 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:53,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:53,529 INFO L85 PathProgramCache]: Analyzing trace with hash 110952758, now seen corresponding path program 2 times [2024-11-28 04:34:53,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:53,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457865630] [2024-11-28 04:34:53,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:34:53,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:59,140 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:34:59,140 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:35:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-11-28 04:35:02,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:02,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457865630] [2024-11-28 04:35:02,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457865630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:02,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:02,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:35:02,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508793929] [2024-11-28 04:35:02,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:02,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:35:02,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:02,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:35:02,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:35:02,797 INFO L87 Difference]: Start difference. First operand 351 states and 461 transitions. Second operand has 12 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 7 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 04:35:06,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:06,534 INFO L93 Difference]: Finished difference Result 592 states and 789 transitions. [2024-11-28 04:35:06,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:35:06,535 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 7 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 227 [2024-11-28 04:35:06,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:06,539 INFO L225 Difference]: With dead ends: 592 [2024-11-28 04:35:06,539 INFO L226 Difference]: Without dead ends: 360 [2024-11-28 04:35:06,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:35:06,542 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 92 mSDsluCounter, 3790 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 4202 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:06,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 4202 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:35:06,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-28 04:35:06,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 351. [2024-11-28 04:35:06,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 231 states have (on average 1.2164502164502164) internal successors, (281), 234 states have internal predecessors, (281), 87 states have call successors, (87), 30 states have call predecessors, (87), 32 states have return successors, (92), 86 states have call predecessors, (92), 85 states have call successors, (92) [2024-11-28 04:35:06,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 460 transitions. [2024-11-28 04:35:06,573 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 460 transitions. Word has length 227 [2024-11-28 04:35:06,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:06,574 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 460 transitions. [2024-11-28 04:35:06,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 7 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-28 04:35:06,575 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 460 transitions. [2024-11-28 04:35:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-28 04:35:06,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:06,577 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:06,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:35:06,577 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:06,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:06,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1266150022, now seen corresponding path program 1 times [2024-11-28 04:35:06,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:06,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729534543] [2024-11-28 04:35:06,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:06,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:18,205 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2024-11-28 04:35:18,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:18,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729534543] [2024-11-28 04:35:18,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729534543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:18,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978752290] [2024-11-28 04:35:18,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:18,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:18,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:18,210 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:18,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:35:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:27,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 4767 conjuncts, 102 conjuncts are in the unsatisfiable core [2024-11-28 04:35:27,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:28,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:35:28,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:35:28,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2024-11-28 04:35:31,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:35:31,006 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 51 treesize of output 23 [2024-11-28 04:35:31,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 23 [2024-11-28 04:35:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:35:31,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:35:31,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 23 [2024-11-28 04:35:32,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 23 [2024-11-28 04:35:32,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:35:32,878 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 51 treesize of output 23 [2024-11-28 04:35:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 353 proven. 43 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-28 04:35:43,466 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:35:51,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978752290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:51,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:35:51,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 26] total 30 [2024-11-28 04:35:51,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700739808] [2024-11-28 04:35:51,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:35:51,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 04:35:51,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:51,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 04:35:51,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:35:51,451 INFO L87 Difference]: Start difference. First operand 351 states and 460 transitions. Second operand has 30 states, 26 states have (on average 5.769230769230769) internal successors, (150), 27 states have internal predecessors, (150), 15 states have call successors, (65), 3 states have call predecessors, (65), 10 states have return successors, (63), 14 states have call predecessors, (63), 15 states have call successors, (63) [2024-11-28 04:35:57,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:57,284 INFO L93 Difference]: Finished difference Result 692 states and 907 transitions. [2024-11-28 04:35:57,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:35:57,285 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 26 states have (on average 5.769230769230769) internal successors, (150), 27 states have internal predecessors, (150), 15 states have call successors, (65), 3 states have call predecessors, (65), 10 states have return successors, (63), 14 states have call predecessors, (63), 15 states have call successors, (63) Word has length 234 [2024-11-28 04:35:57,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:57,289 INFO L225 Difference]: With dead ends: 692 [2024-11-28 04:35:57,289 INFO L226 Difference]: Without dead ends: 356 [2024-11-28 04:35:57,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 227 SyntacticMatches, 27 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=137, Invalid=1843, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 04:35:57,292 INFO L435 NwaCegarLoop]: 402 mSDtfsCounter, 6 mSDsluCounter, 4628 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5030 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:57,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5030 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 04:35:57,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-28 04:35:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 351. [2024-11-28 04:35:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 231 states have (on average 1.2121212121212122) internal successors, (280), 234 states have internal predecessors, (280), 87 states have call successors, (87), 30 states have call predecessors, (87), 32 states have return successors, (92), 86 states have call predecessors, (92), 85 states have call successors, (92) [2024-11-28 04:35:57,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 459 transitions. [2024-11-28 04:35:57,323 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 459 transitions. Word has length 234 [2024-11-28 04:35:57,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:57,324 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 459 transitions. [2024-11-28 04:35:57,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 26 states have (on average 5.769230769230769) internal successors, (150), 27 states have internal predecessors, (150), 15 states have call successors, (65), 3 states have call predecessors, (65), 10 states have return successors, (63), 14 states have call predecessors, (63), 15 states have call successors, (63) [2024-11-28 04:35:57,324 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 459 transitions. [2024-11-28 04:35:57,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-28 04:35:57,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:57,326 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:57,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:35:57,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:35:57,527 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:57,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:57,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1344393365, now seen corresponding path program 1 times [2024-11-28 04:35:57,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:57,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780517346] [2024-11-28 04:35:57,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:57,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2024-11-28 04:36:08,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780517346] [2024-11-28 04:36:08,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780517346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527736029] [2024-11-28 04:36:08,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:08,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:08,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:08,252 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:08,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:36:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:18,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 4771 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:36:18,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 94 proven. 12 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2024-11-28 04:36:20,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2024-11-28 04:36:26,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527736029] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:26,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:36:26,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6, 11] total 23 [2024-11-28 04:36:26,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000052543] [2024-11-28 04:36:26,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:26,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:36:26,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:26,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:36:26,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:36:26,526 INFO L87 Difference]: Start difference. First operand 351 states and 459 transitions. Second operand has 12 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-28 04:36:29,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:29,957 INFO L93 Difference]: Finished difference Result 591 states and 790 transitions. [2024-11-28 04:36:29,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:36:29,958 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 236 [2024-11-28 04:36:29,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:29,962 INFO L225 Difference]: With dead ends: 591 [2024-11-28 04:36:29,962 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 04:36:29,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:36:29,965 INFO L435 NwaCegarLoop]: 407 mSDtfsCounter, 1 mSDsluCounter, 3114 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3521 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:29,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3521 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:36:29,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 04:36:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 357. [2024-11-28 04:36:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 235 states have (on average 1.2085106382978723) internal successors, (284), 239 states have internal predecessors, (284), 87 states have call successors, (87), 30 states have call predecessors, (87), 34 states have return successors, (100), 87 states have call predecessors, (100), 85 states have call successors, (100) [2024-11-28 04:36:30,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 471 transitions. [2024-11-28 04:36:30,003 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 471 transitions. Word has length 236 [2024-11-28 04:36:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:30,003 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 471 transitions. [2024-11-28 04:36:30,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-28 04:36:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 471 transitions. [2024-11-28 04:36:30,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-28 04:36:30,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:30,006 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:30,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:30,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:36:30,207 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:30,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1485038438, now seen corresponding path program 2 times [2024-11-28 04:36:30,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:30,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769174112] [2024-11-28 04:36:30,208 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:36:30,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:44,448 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:36:44,448 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:36:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2024-11-28 04:36:47,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:47,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769174112] [2024-11-28 04:36:47,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769174112] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:47,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846504080] [2024-11-28 04:36:47,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:36:47,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:47,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:47,210 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:47,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_106cb462-a704-45a9-94cc-eb75b5a24a46/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process