./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_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_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/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_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/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_efa8eda4-0579-4bc2-a037-80ca058ef7a2/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 da48e5de3ccd5190fb3d3934a3d9d423de1f83d4587f9dc2fa1f3f18a9362190 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:38:06,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:38:07,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:38:07,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:38:07,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:38:07,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:38:07,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:38:07,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:38:07,075 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:38:07,075 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:38:07,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:38:07,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:38:07,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:38:07,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:38:07,076 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:38:07,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:38:07,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:38:07,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:38:07,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:38:07,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:38:07,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:38:07,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:38:07,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:38:07,078 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:38:07,078 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:38:07,078 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:38:07,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:38:07,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:38:07,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:38:07,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:38:07,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:38:07,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:38:07,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:38:07,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:38:07,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:38:07,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:38:07,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:38:07,080 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:38:07,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:38:07,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:38:07,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:38:07,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:38:07,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:38:07,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:38:07,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:38:07,081 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_efa8eda4-0579-4bc2-a037-80ca058ef7a2/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 -> da48e5de3ccd5190fb3d3934a3d9d423de1f83d4587f9dc2fa1f3f18a9362190 [2024-11-28 03:38:07,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:38:07,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:38:07,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:38:07,459 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:38:07,460 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:38:07,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2024-11-28 03:38:11,137 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/data/5ca1423d6/29f6f3f90c4a48bc8eaff1d5005c18af/FLAG725e0397d [2024-11-28 03:38:12,023 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:38:12,024 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i [2024-11-28 03:38:12,068 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/data/5ca1423d6/29f6f3f90c4a48bc8eaff1d5005c18af/FLAG725e0397d [2024-11-28 03:38:12,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/data/5ca1423d6/29f6f3f90c4a48bc8eaff1d5005c18af [2024-11-28 03:38:12,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:38:12,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:38:12,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:38:12,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:38:12,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:38:12,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54938feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:12, skipping insertion in model container [2024-11-28 03:38:12,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:12" (1/1) ... [2024-11-28 03:38:12,236 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:38:12,608 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2024-11-28 03:38:12,619 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_efa8eda4-0579-4bc2-a037-80ca058ef7a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2024-11-28 03:38:13,859 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:13,860 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:13,860 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:13,862 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:13,863 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:13,883 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:13,884 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:13,887 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:13,888 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:14,835 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:14,835 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:14,964 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:14,964 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:38:15,176 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:38:15,197 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_efa8eda4-0579-4bc2-a037-80ca058ef7a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4503,4516] [2024-11-28 03:38:15,201 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_efa8eda4-0579-4bc2-a037-80ca058ef7a2/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_relative_harness.i[4563,4576] [2024-11-28 03:38:15,296 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,297 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,297 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,297 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,298 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,313 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,318 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,319 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,320 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,449 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,454 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8097] [2024-11-28 03:38:15,527 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,528 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:38:15,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8583-8594] [2024-11-28 03:38:15,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:38:15,921 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:38:15,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15 WrapperNode [2024-11-28 03:38:15,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:38:15,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:38:15,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:38:15,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:38:15,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,160 INFO L138 Inliner]: procedures = 681, calls = 2499, calls flagged for inlining = 58, calls inlined = 13, statements flattened = 1020 [2024-11-28 03:38:16,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:38:16,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:38:16,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:38:16,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:38:16,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,288 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-28 03:38:16,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,289 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:38:16,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:38:16,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:38:16,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:38:16,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (1/1) ... [2024-11-28 03:38:16,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:38:16,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:38:16,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:38:16,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:38:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-28 03:38:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-28 03:38:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:38:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-28 03:38:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-28 03:38:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-28 03:38:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:38:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-28 03:38:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-28 03:38:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:38:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:38:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:38:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:38:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-28 03:38:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:38:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:38:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-28 03:38:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-28 03:38:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_realloc [2024-11-28 03:38:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_realloc [2024-11-28 03:38:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-28 03:38:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-28 03:38:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-28 03:38:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:38:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:38:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:38:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-28 03:38:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-28 03:38:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-28 03:38:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-28 03:38:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-28 03:38:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-28 03:38:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-28 03:38:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-28 03:38:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:38:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:38:16,990 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:38:16,992 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:38:27,727 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-28 03:38:27,728 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:38:27,753 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:38:27,756 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 03:38:27,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:27 BoogieIcfgContainer [2024-11-28 03:38:27,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:38:27,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:38:27,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:38:27,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:38:27,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:38:12" (1/3) ... [2024-11-28 03:38:27,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e487d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:27, skipping insertion in model container [2024-11-28 03:38:27,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:15" (2/3) ... [2024-11-28 03:38:27,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e487d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:27, skipping insertion in model container [2024-11-28 03:38:27,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:27" (3/3) ... [2024-11-28 03:38:27,775 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reserve_relative_harness.i [2024-11-28 03:38:27,796 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:38:27,799 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_reserve_relative_harness.i that has 12 procedures, 161 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-28 03:38:27,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:38:27,919 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;@6ef99eed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:38:27,922 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:38:27,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 112 states have (on average 1.3125) internal successors, (147), 111 states have internal predecessors, (147), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:38:27,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 03:38:27,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:27,944 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:38:27,946 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:38:27,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:27,953 INFO L85 PathProgramCache]: Analyzing trace with hash -54689526, now seen corresponding path program 1 times [2024-11-28 03:38:27,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:38:27,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203015520] [2024-11-28 03:38:27,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:27,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:40:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:40:24,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:40:24,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203015520] [2024-11-28 03:40:24,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203015520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:40:24,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905048600] [2024-11-28 03:40:24,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:24,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:40:24,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:40:24,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:40:24,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:42:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:19,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 7527 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:42:19,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:42:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:42:19,594 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:42:19,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905048600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:19,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:42:19,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:42:19,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82076273] [2024-11-28 03:42:19,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:19,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:42:19,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:19,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:42:19,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:42:19,630 INFO L87 Difference]: Start difference. First operand has 161 states, 112 states have (on average 1.3125) internal successors, (147), 111 states have internal predecessors, (147), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:42:19,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:42:19,680 INFO L93 Difference]: Finished difference Result 312 states and 447 transitions. [2024-11-28 03:42:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:42:19,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2024-11-28 03:42:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:42:19,693 INFO L225 Difference]: With dead ends: 312 [2024-11-28 03:42:19,693 INFO L226 Difference]: Without dead ends: 156 [2024-11-28 03:42:19,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:42:19,705 INFO L435 NwaCegarLoop]: 213 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, 213 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:42:19,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:42:19,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-28 03:42:19,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-28 03:42:19,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 106 states have (on average 1.2547169811320755) internal successors, (133), 107 states have internal predecessors, (133), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-28 03:42:19,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 208 transitions. [2024-11-28 03:42:19,783 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 208 transitions. Word has length 47 [2024-11-28 03:42:19,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:42:19,785 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 208 transitions. [2024-11-28 03:42:19,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:42:19,786 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 208 transitions. [2024-11-28 03:42:19,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 03:42:19,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:42:19,788 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:42:19,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:42:19,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efa8eda4-0579-4bc2-a037-80ca058ef7a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:42:19,989 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:42:19,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:19,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1707328526, now seen corresponding path program 1 times [2024-11-28 03:42:19,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:19,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434534550] [2024-11-28 03:42:19,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:19,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:44:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:44:19,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:44:19,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:44:19,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434534550] [2024-11-28 03:44:19,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434534550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:44:19,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:44:19,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:44:19,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102299846] [2024-11-28 03:44:19,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:44:19,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:44:19,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:44:19,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:44:19,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:44:19,607 INFO L87 Difference]: Start difference. First operand 156 states and 208 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:44:20,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:44:20,190 INFO L93 Difference]: Finished difference Result 299 states and 405 transitions. [2024-11-28 03:44:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:44:20,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 47 [2024-11-28 03:44:20,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:44:20,196 INFO L225 Difference]: With dead ends: 299 [2024-11-28 03:44:20,196 INFO L226 Difference]: Without dead ends: 159 [2024-11-28 03:44:20,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:44:20,199 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 56 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:44:20,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 683 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:44:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-28 03:44:20,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-28 03:44:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 108 states have (on average 1.25) internal successors, (135), 110 states have internal predecessors, (135), 38 states have call successors, (38), 11 states have call predecessors, (38), 12 states have return successors, (43), 37 states have call predecessors, (43), 37 states have call successors, (43) [2024-11-28 03:44:20,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 216 transitions. [2024-11-28 03:44:20,229 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 216 transitions. Word has length 47 [2024-11-28 03:44:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:44:20,229 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 216 transitions. [2024-11-28 03:44:20,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:44:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 216 transitions. [2024-11-28 03:44:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 03:44:20,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:44:20,232 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:44:20,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:44:20,232 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:44:20,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:44:20,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1093933987, now seen corresponding path program 1 times [2024-11-28 03:44:20,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:44:20,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619699952] [2024-11-28 03:44:20,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:44:20,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:46:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:46:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:46:16,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:46:16,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619699952] [2024-11-28 03:46:16,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619699952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:46:16,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:46:16,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:46:16,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709337990] [2024-11-28 03:46:16,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:46:16,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:46:16,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:46:16,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:46:16,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:46:16,934 INFO L87 Difference]: Start difference. First operand 159 states and 216 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:46:17,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:46:17,158 INFO L93 Difference]: Finished difference Result 199 states and 264 transitions. [2024-11-28 03:46:17,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:46:17,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 53 [2024-11-28 03:46:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:46:17,161 INFO L225 Difference]: With dead ends: 199 [2024-11-28 03:46:17,161 INFO L226 Difference]: Without dead ends: 161 [2024-11-28 03:46:17,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:46:17,167 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:46:17,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1015 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:46:17,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-28 03:46:17,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-11-28 03:46:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 110 states have (on average 1.2454545454545454) internal successors, (137), 112 states have internal predecessors, (137), 38 states have call successors, (38), 11 states have call predecessors, (38), 12 states have return successors, (43), 37 states have call predecessors, (43), 37 states have call successors, (43) [2024-11-28 03:46:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 218 transitions. [2024-11-28 03:46:17,201 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 218 transitions. Word has length 53 [2024-11-28 03:46:17,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:46:17,201 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 218 transitions. [2024-11-28 03:46:17,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-28 03:46:17,202 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 218 transitions. [2024-11-28 03:46:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-28 03:46:17,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:46:17,204 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:46:17,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:46:17,205 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:46:17,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:46:17,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1771110635, now seen corresponding path program 1 times [2024-11-28 03:46:17,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:46:17,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156235710] [2024-11-28 03:46:17,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:46:17,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:48:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:48:06,207 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 03:48:06,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:48:06,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156235710] [2024-11-28 03:48:06,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156235710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:48:06,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:48:06,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:48:06,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616013856] [2024-11-28 03:48:06,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:48:06,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:48:06,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:48:06,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:48:06,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:48:06,210 INFO L87 Difference]: Start difference. First operand 161 states and 218 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:48:07,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:48:07,007 INFO L93 Difference]: Finished difference Result 298 states and 402 transitions. [2024-11-28 03:48:07,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:48:07,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 61 [2024-11-28 03:48:07,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:48:07,010 INFO L225 Difference]: With dead ends: 298 [2024-11-28 03:48:07,011 INFO L226 Difference]: Without dead ends: 162 [2024-11-28 03:48:07,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:48:07,013 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 52 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:48:07,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 836 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:48:07,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-28 03:48:07,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2024-11-28 03:48:07,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 110 states have (on average 1.2454545454545454) internal successors, (137), 112 states have internal predecessors, (137), 38 states have call successors, (38), 11 states have call predecessors, (38), 12 states have return successors, (41), 37 states have call predecessors, (41), 37 states have call successors, (41) [2024-11-28 03:48:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 216 transitions. [2024-11-28 03:48:07,031 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 216 transitions. Word has length 61 [2024-11-28 03:48:07,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:48:07,032 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 216 transitions. [2024-11-28 03:48:07,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:48:07,033 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 216 transitions. [2024-11-28 03:48:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 03:48:07,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:48:07,035 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:48:07,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:48:07,036 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:48:07,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:48:07,036 INFO L85 PathProgramCache]: Analyzing trace with hash -203466431, now seen corresponding path program 1 times [2024-11-28 03:48:07,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:48:07,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112378003] [2024-11-28 03:48:07,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:48:07,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:48,926 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:49:48,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:48,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112378003] [2024-11-28 03:49:48,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112378003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:48,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:48,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:49:48,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461510581] [2024-11-28 03:49:48,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:48,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:49:48,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:48,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:49:48,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:49:48,928 INFO L87 Difference]: Start difference. First operand 161 states and 216 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 03:49:49,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:49:49,453 INFO L93 Difference]: Finished difference Result 172 states and 233 transitions. [2024-11-28 03:49:49,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:49:49,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 65 [2024-11-28 03:49:49,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:49:49,457 INFO L225 Difference]: With dead ends: 172 [2024-11-28 03:49:49,457 INFO L226 Difference]: Without dead ends: 165 [2024-11-28 03:49:49,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:49:49,459 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 3 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:49:49,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1451 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:49:49,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-28 03:49:49,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-28 03:49:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 113 states have (on average 1.238938053097345) internal successors, (140), 116 states have internal predecessors, (140), 38 states have call successors, (38), 11 states have call predecessors, (38), 13 states have return successors, (48), 37 states have call predecessors, (48), 37 states have call successors, (48) [2024-11-28 03:49:49,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2024-11-28 03:49:49,476 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 65 [2024-11-28 03:49:49,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:49:49,477 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2024-11-28 03:49:49,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 03:49:49,477 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2024-11-28 03:49:49,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 03:49:49,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:49:49,480 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:49:49,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:49:49,480 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:49:49,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:49,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1989634688, now seen corresponding path program 1 times [2024-11-28 03:49:49,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:49,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302855702] [2024-11-28 03:49:49,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:49,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:51:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:51:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:51:25,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:51:25,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302855702] [2024-11-28 03:51:25,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302855702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:51:25,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:51:25,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:51:25,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265883777] [2024-11-28 03:51:25,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:51:25,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:51:25,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:51:25,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:51:25,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:51:25,963 INFO L87 Difference]: Start difference. First operand 165 states and 226 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 03:51:26,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:51:26,188 INFO L93 Difference]: Finished difference Result 211 states and 279 transitions. [2024-11-28 03:51:26,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:51:26,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2024-11-28 03:51:26,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:51:26,191 INFO L225 Difference]: With dead ends: 211 [2024-11-28 03:51:26,191 INFO L226 Difference]: Without dead ends: 169 [2024-11-28 03:51:26,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:51:26,196 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 0 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:51:26,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1021 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:51:26,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-28 03:51:26,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2024-11-28 03:51:26,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 113 states have (on average 1.238938053097345) internal successors, (140), 116 states have internal predecessors, (140), 38 states have call successors, (38), 11 states have call predecessors, (38), 13 states have return successors, (48), 37 states have call predecessors, (48), 37 states have call successors, (48) [2024-11-28 03:51:26,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2024-11-28 03:51:26,226 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 67 [2024-11-28 03:51:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:51:26,229 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2024-11-28 03:51:26,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-28 03:51:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2024-11-28 03:51:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 03:51:26,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:51:26,237 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:51:26,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:51:26,237 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:51:26,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:51:26,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1382434185, now seen corresponding path program 1 times [2024-11-28 03:51:26,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:51:26,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567821926] [2024-11-28 03:51:26,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:51:26,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms