./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_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_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/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_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/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_25086112-e6a3-4dd5-9bec-1aad55090f6c/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 f6da3aa04741dedcde0205dc04a8136a445ebd58b30adbc60377ecda455d64bb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:21:52,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:21:52,348 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 23:21:52,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:21:52,355 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:21:52,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:21:52,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:21:52,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:21:52,387 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:21:52,387 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:21:52,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:21:52,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:21:52,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:21:52,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:21:52,388 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:21:52,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:21:52,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:21:52,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:21:52,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:21:52,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:21:52,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:21:52,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:21:52,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:21:52,390 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:21:52,390 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:21:52,390 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:21:52,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:21:52,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:21:52,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:21:52,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:21:52,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:21:52,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:21:52,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:21:52,392 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:21:52,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:21:52,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:21:52,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:21:52,393 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:21:52,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:21:52,393 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:21:52,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:21:52,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:21:52,393 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:21:52,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:21:52,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:21:52,394 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_25086112-e6a3-4dd5-9bec-1aad55090f6c/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 -> f6da3aa04741dedcde0205dc04a8136a445ebd58b30adbc60377ecda455d64bb [2024-11-27 23:21:52,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:21:52,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:21:52,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:21:52,793 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:21:52,794 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:21:52,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i [2024-11-27 23:21:56,406 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/data/ad2a4d176/7904efd4b6f347198062b92ff96ab90c/FLAGa095083ff [2024-11-27 23:21:57,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:21:57,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i [2024-11-27 23:21:57,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/data/ad2a4d176/7904efd4b6f347198062b92ff96ab90c/FLAGa095083ff [2024-11-27 23:21:57,290 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/data/ad2a4d176/7904efd4b6f347198062b92ff96ab90c [2024-11-27 23:21:57,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:21:57,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:21:57,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:21:57,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:21:57,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:21:57,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:57" (1/1) ... [2024-11-27 23:21:57,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7ecdc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:57, skipping insertion in model container [2024-11-27 23:21:57,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:57" (1/1) ... [2024-11-27 23:21:57,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:21:57,750 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_25086112-e6a3-4dd5-9bec-1aad55090f6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4499,4512] [2024-11-27 23:21:57,758 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_25086112-e6a3-4dd5-9bec-1aad55090f6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4559,4572] [2024-11-27 23:21:58,999 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:21:59,000 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:21:59,000 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:21:59,001 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:21:59,003 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:21:59,024 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:21:59,025 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:21:59,032 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:21:59,032 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,101 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,102 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:00,337 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:22:00,354 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_25086112-e6a3-4dd5-9bec-1aad55090f6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4499,4512] [2024-11-27 23:22:00,355 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_25086112-e6a3-4dd5-9bec-1aad55090f6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4559,4572] [2024-11-27 23:22:00,407 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,407 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,408 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,408 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,409 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,418 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,418 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,423 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,423 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-27 23:22:00,610 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,611 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-27 23:22:00,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-11-27 23:22:00,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:22:00,991 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:22:00,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00 WrapperNode [2024-11-27 23:22:00,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:22:00,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:00,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:22:00,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:22:01,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,298 INFO L138 Inliner]: procedures = 680, calls = 2639, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 1027 [2024-11-27 23:22:01,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:22:01,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:22:01,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:22:01,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:22:01,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,331 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,474 INFO L175 MemorySlicer]: Split 567 memory accesses to 8 slices as follows [248, 2, 257, 6, 8, 4, 37, 5]. 45 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [6, 2, 0, 0, 2, 2, 2, 5]. The 504 writes are split as follows [236, 0, 257, 2, 0, 0, 9, 0]. [2024-11-27 23:22:01,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,478 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,561 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,570 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:22:01,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:22:01,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:22:01,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:22:01,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (1/1) ... [2024-11-27 23:22:01,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:22:01,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:22:01,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:22:01,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:22:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-27 23:22:01,703 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-27 23:22:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-27 23:22:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-27 23:22:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:22:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-27 23:22:01,705 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-27 23:22:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-27 23:22:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-27 23:22:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-27 23:22:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-27 23:22:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-27 23:22:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-27 23:22:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-27 23:22:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-11-27 23:22:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-27 23:22:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-27 23:22:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-27 23:22:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-27 23:22:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-27 23:22:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-27 23:22:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-27 23:22:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-27 23:22:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-27 23:22:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-27 23:22:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-27 23:22:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-27 23:22:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-27 23:22:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-27 23:22:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-27 23:22:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-27 23:22:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:22:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:22:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:22:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 23:22:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 23:22:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 23:22:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-27 23:22:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-27 23:22:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-27 23:22:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-27 23:22:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-27 23:22:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-27 23:22:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-27 23:22:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-27 23:22:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-27 23:22:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-27 23:22:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-27 23:22:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-27 23:22:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-27 23:22:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-27 23:22:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-27 23:22:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-27 23:22:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-27 23:22:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-27 23:22:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:22:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:22:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:22:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh16 [2024-11-27 23:22:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh16 [2024-11-27 23:22:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:22:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 23:22:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 23:22:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 23:22:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 23:22:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 23:22:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 23:22:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-27 23:22:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-27 23:22:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:22:01,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:22:01,718 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-27 23:22:01,719 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-27 23:22:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-27 23:22:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-27 23:22:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-27 23:22:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-27 23:22:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-27 23:22:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-27 23:22:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-27 23:22:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-27 23:22:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-27 23:22:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:22:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:22:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 23:22:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 23:22:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 23:22:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 23:22:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 23:22:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 23:22:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-27 23:22:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-27 23:22:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 23:22:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 23:22:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 23:22:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 23:22:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 23:22:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 23:22:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-27 23:22:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-27 23:22:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-27 23:22:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-27 23:22:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:22:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:22:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:22:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 23:22:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 23:22:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 23:22:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-27 23:22:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-27 23:22:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-27 23:22:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-27 23:22:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-27 23:22:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-27 23:22:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 23:22:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-27 23:22:02,288 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:22:02,291 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:22:13,419 INFO L? ?]: Removed 248 outVars from TransFormulas that were not future-live. [2024-11-27 23:22:13,419 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:22:13,446 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:22:13,446 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:22:13,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:13 BoogieIcfgContainer [2024-11-27 23:22:13,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:22:13,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:22:13,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:22:13,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:22:13,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:21:57" (1/3) ... [2024-11-27 23:22:13,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296f9dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:13, skipping insertion in model container [2024-11-27 23:22:13,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:22:00" (2/3) ... [2024-11-27 23:22:13,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296f9dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:22:13, skipping insertion in model container [2024-11-27 23:22:13,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:22:13" (3/3) ... [2024-11-27 23:22:13,463 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be16_harness.i [2024-11-27 23:22:13,487 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:22:13,489 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_be16_harness.i that has 19 procedures, 217 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-11-27 23:22:13,577 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:22:13,596 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;@44f79281, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:22:13,596 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:22:13,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 121 states have (on average 1.28099173553719) internal successors, (155), 122 states have internal predecessors, (155), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 23:22:13,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-27 23:22:13,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:13,620 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:13,621 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:13,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:13,630 INFO L85 PathProgramCache]: Analyzing trace with hash 921562043, now seen corresponding path program 1 times [2024-11-27 23:22:13,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:13,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251928089] [2024-11-27 23:22:13,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:13,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:23:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-27 23:23:59,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:23:59,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251928089] [2024-11-27 23:23:59,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251928089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:23:59,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221809261] [2024-11-27 23:23:59,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:23:59,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:23:59,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:23:59,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:23:59,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:25:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:43,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 7835 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:25:43,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:25:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-27 23:25:43,040 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:25:43,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221809261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:43,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:25:43,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:25:43,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765157944] [2024-11-27 23:25:43,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:43,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:25:43,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:43,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:25:43,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:25:43,069 INFO L87 Difference]: Start difference. First operand has 182 states, 121 states have (on average 1.28099173553719) internal successors, (155), 122 states have internal predecessors, (155), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:25:43,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:43,134 INFO L93 Difference]: Finished difference Result 357 states and 522 transitions. [2024-11-27 23:25:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:25:43,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2024-11-27 23:25:43,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:43,147 INFO L225 Difference]: With dead ends: 357 [2024-11-27 23:25:43,147 INFO L226 Difference]: Without dead ends: 176 [2024-11-27 23:25:43,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:25:43,155 INFO L435 NwaCegarLoop]: 249 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, 249 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 [2024-11-27 23:25:43,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:25:43,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-27 23:25:43,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-11-27 23:25:43,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 116 states have (on average 1.2758620689655173) internal successors, (148), 117 states have internal predecessors, (148), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-27 23:25:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 243 transitions. [2024-11-27 23:25:43,227 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 243 transitions. Word has length 124 [2024-11-27 23:25:43,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:43,229 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 243 transitions. [2024-11-27 23:25:43,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:25:43,229 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 243 transitions. [2024-11-27 23:25:43,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-27 23:25:43,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:43,233 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:43,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:25:43,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:25:43,434 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:43,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:43,434 INFO L85 PathProgramCache]: Analyzing trace with hash 714257717, now seen corresponding path program 1 times [2024-11-27 23:25:43,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:43,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739541269] [2024-11-27 23:25:43,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:43,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:26,854 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-27 23:27:26,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:26,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739541269] [2024-11-27 23:27:26,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739541269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:27:26,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926264037] [2024-11-27 23:27:26,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:26,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:27:26,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:27:26,862 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:27:26,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:29:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:08,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 7835 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:29:08,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:08,995 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-27 23:29:08,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:08,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926264037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:08,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:08,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-27 23:29:08,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117153606] [2024-11-27 23:29:08,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:08,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:29:08,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:08,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:29:08,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:29:08,999 INFO L87 Difference]: Start difference. First operand 176 states and 243 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:29:10,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:10,385 INFO L93 Difference]: Finished difference Result 328 states and 465 transitions. [2024-11-27 23:29:10,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:29:10,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 124 [2024-11-27 23:29:10,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:10,391 INFO L225 Difference]: With dead ends: 328 [2024-11-27 23:29:10,391 INFO L226 Difference]: Without dead ends: 179 [2024-11-27 23:29:10,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:29:10,394 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 251 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:10,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 536 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:29:10,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-27 23:29:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-27 23:29:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 118 states have (on average 1.271186440677966) internal successors, (150), 120 states have internal predecessors, (150), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (55), 47 states have call predecessors, (55), 47 states have call successors, (55) [2024-11-27 23:29:10,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 253 transitions. [2024-11-27 23:29:10,422 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 253 transitions. Word has length 124 [2024-11-27 23:29:10,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:10,422 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 253 transitions. [2024-11-27 23:29:10,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-27 23:29:10,423 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 253 transitions. [2024-11-27 23:29:10,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 23:29:10,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:10,426 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:10,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:29:10,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:10,627 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:10,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:10,627 INFO L85 PathProgramCache]: Analyzing trace with hash -24142886, now seen corresponding path program 1 times [2024-11-27 23:29:10,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:10,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75762904] [2024-11-27 23:29:10,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:10,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:57,834 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-27 23:30:57,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:57,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75762904] [2024-11-27 23:30:57,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75762904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:30:57,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428053195] [2024-11-27 23:30:57,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:57,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:57,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:30:57,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:30:57,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:32:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:59,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 7840 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:32:59,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-27 23:32:59,934 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:59,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428053195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:59,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:59,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-11-27 23:32:59,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552523240] [2024-11-27 23:32:59,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:59,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:32:59,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:59,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:32:59,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:32:59,937 INFO L87 Difference]: Start difference. First operand 179 states and 253 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:33:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:01,673 INFO L93 Difference]: Finished difference Result 314 states and 446 transitions. [2024-11-27 23:33:01,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:33:01,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 126 [2024-11-27 23:33:01,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:01,677 INFO L225 Difference]: With dead ends: 314 [2024-11-27 23:33:01,677 INFO L226 Difference]: Without dead ends: 179 [2024-11-27 23:33:01,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:33:01,679 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 251 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:01,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 722 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 23:33:01,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-27 23:33:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-27 23:33:01,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 118 states have (on average 1.271186440677966) internal successors, (150), 120 states have internal predecessors, (150), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (53), 47 states have call predecessors, (53), 47 states have call successors, (53) [2024-11-27 23:33:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 251 transitions. [2024-11-27 23:33:01,702 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 251 transitions. Word has length 126 [2024-11-27 23:33:01,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:01,703 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 251 transitions. [2024-11-27 23:33:01,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-27 23:33:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 251 transitions. [2024-11-27 23:33:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 23:33:01,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:01,706 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:01,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:33:01,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25086112-e6a3-4dd5-9bec-1aad55090f6c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:01,907 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:01,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:01,907 INFO L85 PathProgramCache]: Analyzing trace with hash -642873195, now seen corresponding path program 2 times [2024-11-27 23:33:01,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:01,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480230262] [2024-11-27 23:33:01,908 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:01,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:43,885 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:43,886 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:48,765 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-27 23:34:48,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:48,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480230262] [2024-11-27 23:34:48,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480230262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:48,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:48,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 23:34:48,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582334604] [2024-11-27 23:34:48,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:48,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:34:48,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:48,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:34:48,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:34:48,768 INFO L87 Difference]: Start difference. First operand 179 states and 251 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-27 23:34:50,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:50,358 INFO L93 Difference]: Finished difference Result 308 states and 433 transitions. [2024-11-27 23:34:50,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:34:50,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) Word has length 128 [2024-11-27 23:34:50,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:50,362 INFO L225 Difference]: With dead ends: 308 [2024-11-27 23:34:50,362 INFO L226 Difference]: Without dead ends: 179 [2024-11-27 23:34:50,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:34:50,364 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 184 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:50,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1508 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:34:50,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-27 23:34:50,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-27 23:34:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 118 states have (on average 1.271186440677966) internal successors, (150), 120 states have internal predecessors, (150), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2024-11-27 23:34:50,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 246 transitions. [2024-11-27 23:34:50,393 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 246 transitions. Word has length 128 [2024-11-27 23:34:50,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:50,394 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 246 transitions. [2024-11-27 23:34:50,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 6 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-27 23:34:50,395 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 246 transitions. [2024-11-27 23:34:50,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-27 23:34:50,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:50,398 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:50,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:34:50,398 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:50,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:50,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1195945668, now seen corresponding path program 1 times [2024-11-27 23:34:50,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:50,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800830763] [2024-11-27 23:34:50,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:50,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-27 23:36:31,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:31,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800830763] [2024-11-27 23:36:31,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800830763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:31,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:31,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:36:31,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948029259] [2024-11-27 23:36:31,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:31,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:36:31,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:31,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:36:31,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:36:31,907 INFO L87 Difference]: Start difference. First operand 179 states and 246 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:36:32,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:32,673 INFO L93 Difference]: Finished difference Result 191 states and 267 transitions. [2024-11-27 23:36:32,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:36:32,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 134 [2024-11-27 23:36:32,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:32,679 INFO L225 Difference]: With dead ends: 191 [2024-11-27 23:36:32,679 INFO L226 Difference]: Without dead ends: 189 [2024-11-27 23:36:32,680 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 [2024-11-27 23:36:32,681 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 3 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:32,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1660 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:36:32,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-27 23:36:32,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2024-11-27 23:36:32,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 127 states have internal predecessors, (156), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (59), 48 states have call predecessors, (59), 48 states have call successors, (59) [2024-11-27 23:36:32,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2024-11-27 23:36:32,722 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 134 [2024-11-27 23:36:32,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:32,723 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2024-11-27 23:36:32,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-27 23:36:32,724 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2024-11-27 23:36:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 23:36:32,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:32,726 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:32,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:36:32,727 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:32,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:32,727 INFO L85 PathProgramCache]: Analyzing trace with hash -238701812, now seen corresponding path program 1 times [2024-11-27 23:36:32,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:32,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640312206] [2024-11-27 23:36:32,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:32,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms