./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/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_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/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_32a806b4-5411-4b03-9e07-2c98d307e7f1/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 848e8aaf2da1050f60bda552a6204df78dfc0f4df819a9c6dc06d2a6a5e3d82f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:00:04,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:00:04,712 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 04:00:04,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:00:04,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:00:04,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:00:04,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:00:04,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:00:04,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:00:04,768 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:00:04,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:00:04,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:00:04,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:00:04,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:00:04,769 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:00:04,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:00:04,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:00:04,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:00:04,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:00:04,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:00:04,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:00:04,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:00:04,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:00:04,773 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:00:04,773 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:00:04,773 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:00:04,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:00:04,773 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:00:04,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:00:04,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:04,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:00:04,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:00:04,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:00:04,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:00:04,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:04,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:00:04,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:00:04,775 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:00:04,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:00:04,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:00:04,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:00:04,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:00:04,775 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:00:04,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:00:04,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:00:04,776 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_32a806b4-5411-4b03-9e07-2c98d307e7f1/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 -> 848e8aaf2da1050f60bda552a6204df78dfc0f4df819a9c6dc06d2a6a5e3d82f [2024-11-28 04:00:05,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:00:05,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:00:05,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:00:05,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:00:05,195 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:00:05,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2024-11-28 04:00:08,429 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/data/6d56919e0/0a8431a885664cac9a17c82651c6fcdd/FLAG665e4bcb2 [2024-11-28 04:00:09,157 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:00:09,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2024-11-28 04:00:09,232 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/data/6d56919e0/0a8431a885664cac9a17c82651c6fcdd/FLAG665e4bcb2 [2024-11-28 04:00:09,260 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/data/6d56919e0/0a8431a885664cac9a17c82651c6fcdd [2024-11-28 04:00:09,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:00:09,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:00:09,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:09,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:00:09,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:00:09,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:09" (1/1) ... [2024-11-28 04:00:09,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5688a42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:09, skipping insertion in model container [2024-11-28 04:00:09,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:09" (1/1) ... [2024-11-28 04:00:09,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:00:09,775 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_32a806b4-5411-4b03-9e07-2c98d307e7f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2024-11-28 04:00:09,783 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_32a806b4-5411-4b03-9e07-2c98d307e7f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2024-11-28 04:00:10,887 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:10,889 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:10,889 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:10,891 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:10,892 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:10,909 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:10,910 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:10,912 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:10,913 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:11,918 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:11,922 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:12,116 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:00:12,137 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_32a806b4-5411-4b03-9e07-2c98d307e7f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2024-11-28 04:00:12,138 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_32a806b4-5411-4b03-9e07-2c98d307e7f1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2024-11-28 04:00:12,210 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,210 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,211 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,212 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,212 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,224 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,224 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,226 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,227 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-11-28 04:00:12,439 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,440 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 04:00:12,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-11-28 04:00:12,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:12,838 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:00:12,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12 WrapperNode [2024-11-28 04:00:12,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:12,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:12,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:00:12,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:00:12,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:12,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,121 INFO L138 Inliner]: procedures = 680, calls = 2618, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 871 [2024-11-28 04:00:13,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:13,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:00:13,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:00:13,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:00:13,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,156 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,285 INFO L175 MemorySlicer]: Split 564 memory accesses to 8 slices as follows [257, 8, 4, 2, 238, 47, 6, 2]. 46 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [0, 5, 0, 2, 6, 8, 0, 1]. The 497 writes are split as follows [257, 1, 2, 0, 232, 3, 2, 0]. [2024-11-28 04:00:13,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,335 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:00:13,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:00:13,393 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:00:13,393 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:00:13,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (1/1) ... [2024-11-28 04:00:13,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:13,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:13,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:00:13,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:00:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hton64 [2024-11-28 04:00:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hton64 [2024-11-28 04:00:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-28 04:00:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-28 04:00:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:00:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 04:00:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 04:00:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 04:00:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 04:00:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 04:00:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 04:00:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 04:00:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 04:00:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 04:00:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 04:00:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:00:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:00:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:00:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:00:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:00:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:00:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 04:00:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 04:00:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 04:00:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 04:00:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 04:00:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-28 04:00:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-28 04:00:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:00:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:00:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 04:00:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 04:00:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-28 04:00:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:00:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:00:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-28 04:00:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-28 04:00:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:00:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:00:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:00:13,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:00:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 04:00:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 04:00:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 04:00:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 04:00:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 04:00:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-11-28 04:00:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-11-28 04:00:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 04:00:13,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 04:00:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 04:00:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:00:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_big_endian [2024-11-28 04:00:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_big_endian [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:00:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:00:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:00:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 04:00:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 04:00:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 04:00:14,050 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:00:14,054 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:00:24,053 INFO L? ?]: Removed 112 outVars from TransFormulas that were not future-live. [2024-11-28 04:00:24,053 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:00:24,069 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:00:24,069 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:00:24,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:24 BoogieIcfgContainer [2024-11-28 04:00:24,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:00:24,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:00:24,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:00:24,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:00:24,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:00:09" (1/3) ... [2024-11-28 04:00:24,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707c39f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:24, skipping insertion in model container [2024-11-28 04:00:24,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:12" (2/3) ... [2024-11-28 04:00:24,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707c39f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:24, skipping insertion in model container [2024-11-28 04:00:24,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:24" (3/3) ... [2024-11-28 04:00:24,083 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be64_harness.i [2024-11-28 04:00:24,101 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:00:24,103 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_write_be64_harness.i that has 14 procedures, 151 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:00:24,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:00:24,198 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;@d74900f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:00:24,198 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:00:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 100 states have internal predecessors, (122), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-28 04:00:24,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 04:00:24,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:24,215 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:24,216 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:24,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:24,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1920013511, now seen corresponding path program 1 times [2024-11-28 04:00:24,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:24,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942789224] [2024-11-28 04:00:24,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:24,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:57,577 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 04:01:57,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:57,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942789224] [2024-11-28 04:01:57,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942789224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:57,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765685873] [2024-11-28 04:01:57,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:57,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:57,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:57,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:57,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:03:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:36,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 7758 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:03:37,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:37,075 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 04:03:37,075 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:37,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765685873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:37,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:37,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:03:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592952991] [2024-11-28 04:03:37,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:37,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:03:37,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:37,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:03:37,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:03:37,105 INFO L87 Difference]: Start difference. First operand has 151 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 100 states have internal predecessors, (122), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 04:03:37,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:37,142 INFO L93 Difference]: Finished difference Result 293 states and 408 transitions. [2024-11-28 04:03:37,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:03:37,144 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2024-11-28 04:03:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:37,153 INFO L225 Difference]: With dead ends: 293 [2024-11-28 04:03:37,154 INFO L226 Difference]: Without dead ends: 146 [2024-11-28 04:03:37,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 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 04:03:37,165 INFO L435 NwaCegarLoop]: 193 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, 193 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 04:03:37,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:03:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-28 04:03:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-28 04:03:37,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 95 states have (on average 1.2105263157894737) internal successors, (115), 96 states have internal predecessors, (115), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:03:37,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 188 transitions. [2024-11-28 04:03:37,217 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 188 transitions. Word has length 101 [2024-11-28 04:03:37,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:37,217 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 188 transitions. [2024-11-28 04:03:37,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 04:03:37,218 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 188 transitions. [2024-11-28 04:03:37,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 04:03:37,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:37,222 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:37,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:03:37,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:37,422 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:37,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:37,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1267710013, now seen corresponding path program 1 times [2024-11-28 04:03:37,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:37,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968899916] [2024-11-28 04:03:37,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:37,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:15,147 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 04:05:15,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:15,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968899916] [2024-11-28 04:05:15,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968899916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:15,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452780422] [2024-11-28 04:05:15,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:15,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:15,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:15,153 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:15,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:06:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:06:45,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 7758 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:06:45,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:06:46,473 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-28 04:06:46,473 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:06:46,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452780422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:06:46,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:06:46,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 04:06:46,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23456686] [2024-11-28 04:06:46,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:06:46,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:06:46,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:06:46,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:06:46,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:06:46,476 INFO L87 Difference]: Start difference. First operand 146 states and 188 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 04:06:47,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:06:47,710 INFO L93 Difference]: Finished difference Result 265 states and 350 transitions. [2024-11-28 04:06:47,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:06:47,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 101 [2024-11-28 04:06:47,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:06:47,715 INFO L225 Difference]: With dead ends: 265 [2024-11-28 04:06:47,715 INFO L226 Difference]: Without dead ends: 149 [2024-11-28 04:06:47,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:06:47,717 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 194 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:06:47,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 562 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:06:47,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-28 04:06:47,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-28 04:06:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 97 states have (on average 1.2061855670103092) internal successors, (117), 99 states have internal predecessors, (117), 37 states have call successors, (37), 13 states have call predecessors, (37), 14 states have return successors, (40), 36 states have call predecessors, (40), 36 states have call successors, (40) [2024-11-28 04:06:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 194 transitions. [2024-11-28 04:06:47,744 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 194 transitions. Word has length 101 [2024-11-28 04:06:47,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:06:47,745 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 194 transitions. [2024-11-28 04:06:47,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-28 04:06:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 194 transitions. [2024-11-28 04:06:47,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 04:06:47,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:06:47,748 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:06:47,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:06:47,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:06:47,949 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:06:47,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:06:47,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1588791728, now seen corresponding path program 1 times [2024-11-28 04:06:47,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:06:47,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307698697] [2024-11-28 04:06:47,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:06:47,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 04:08:15,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:15,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307698697] [2024-11-28 04:08:15,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307698697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:15,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739671827] [2024-11-28 04:08:15,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:15,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:15,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:15,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:15,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:09:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:47,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 7770 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:09:47,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 04:09:47,801 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:09:47,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739671827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:09:47,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:47,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-28 04:09:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698803610] [2024-11-28 04:09:47,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:09:47,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:09:47,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:47,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:09:47,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:47,804 INFO L87 Difference]: Start difference. First operand 149 states and 194 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 04:09:47,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:47,918 INFO L93 Difference]: Finished difference Result 270 states and 364 transitions. [2024-11-28 04:09:47,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:09:47,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2024-11-28 04:09:47,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:47,922 INFO L225 Difference]: With dead ends: 270 [2024-11-28 04:09:47,922 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 04:09:47,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:09:47,924 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:47,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 550 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:09:47,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 04:09:47,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-28 04:09:47,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 99 states have (on average 1.202020202020202) internal successors, (119), 101 states have internal predecessors, (119), 37 states have call successors, (37), 13 states have call predecessors, (37), 14 states have return successors, (40), 36 states have call predecessors, (40), 36 states have call successors, (40) [2024-11-28 04:09:47,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 196 transitions. [2024-11-28 04:09:47,948 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 196 transitions. Word has length 107 [2024-11-28 04:09:47,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:47,952 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 196 transitions. [2024-11-28 04:09:47,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 04:09:47,953 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 196 transitions. [2024-11-28 04:09:47,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 04:09:47,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:47,959 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:47,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:48,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:48,160 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:09:48,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:48,161 INFO L85 PathProgramCache]: Analyzing trace with hash 797717778, now seen corresponding path program 1 times [2024-11-28 04:09:48,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:48,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348369425] [2024-11-28 04:09:48,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:09:48,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 04:11:18,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:18,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348369425] [2024-11-28 04:11:18,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348369425] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:18,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534188573] [2024-11-28 04:11:18,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:18,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:18,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:18,634 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:18,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:12:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:47,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 7775 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:12:47,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:48,218 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:12:48,222 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:12:48,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534188573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:12:48,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:48,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-28 04:12:48,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330001413] [2024-11-28 04:12:48,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:12:48,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:12:48,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:48,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:12:48,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:12:48,227 INFO L87 Difference]: Start difference. First operand 151 states and 196 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:12:49,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:49,538 INFO L93 Difference]: Finished difference Result 264 states and 345 transitions. [2024-11-28 04:12:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:12:49,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 107 [2024-11-28 04:12:49,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:49,540 INFO L225 Difference]: With dead ends: 264 [2024-11-28 04:12:49,541 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 04:12:49,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:12:49,542 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 195 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:49,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 565 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:12:49,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 04:12:49,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-28 04:12:49,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 99 states have (on average 1.202020202020202) internal successors, (119), 101 states have internal predecessors, (119), 37 states have call successors, (37), 13 states have call predecessors, (37), 14 states have return successors, (39), 36 states have call predecessors, (39), 36 states have call successors, (39) [2024-11-28 04:12:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 195 transitions. [2024-11-28 04:12:49,571 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 195 transitions. Word has length 107 [2024-11-28 04:12:49,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:49,571 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 195 transitions. [2024-11-28 04:12:49,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:12:49,572 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 195 transitions. [2024-11-28 04:12:49,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:12:49,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:49,574 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2024-11-28 04:12:49,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:12:49,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32a806b4-5411-4b03-9e07-2c98d307e7f1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:49,774 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:12:49,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:49,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1964377817, now seen corresponding path program 2 times [2024-11-28 04:12:49,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:49,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153946451] [2024-11-28 04:12:49,775 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:12:49,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:14:23,219 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:14:23,219 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:14:26,584 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:14:26,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:14:26,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153946451] [2024-11-28 04:14:26,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153946451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:14:26,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:14:26,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:14:26,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074643722] [2024-11-28 04:14:26,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:14:26,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:14:26,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:14:26,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:14:26,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:14:26,586 INFO L87 Difference]: Start difference. First operand 151 states and 195 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:14:27,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:14:27,460 INFO L93 Difference]: Finished difference Result 244 states and 318 transitions. [2024-11-28 04:14:27,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:14:27,461 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 113 [2024-11-28 04:14:27,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:14:27,463 INFO L225 Difference]: With dead ends: 244 [2024-11-28 04:14:27,464 INFO L226 Difference]: Without dead ends: 148 [2024-11-28 04:14:27,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:14:27,465 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 43 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:14:27,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1105 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:14:27,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-28 04:14:27,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-28 04:14:27,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 97 states have (on average 1.1958762886597938) internal successors, (116), 98 states have internal predecessors, (116), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:14:27,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 189 transitions. [2024-11-28 04:14:27,482 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 189 transitions. Word has length 113 [2024-11-28 04:14:27,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:14:27,482 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 189 transitions. [2024-11-28 04:14:27,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:14:27,483 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 189 transitions. [2024-11-28 04:14:27,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 04:14:27,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:14:27,485 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:14:27,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:14:27,485 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:14:27,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:14:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash 977071549, now seen corresponding path program 1 times [2024-11-28 04:14:27,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:14:27,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847873996] [2024-11-28 04:14:27,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:14:27,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms