./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd --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 b9b18ebf4b8789ea2f47784074870c5f6db1e5ba9b6bdc5a046638032691b06b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:45:02,571 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:45:02,648 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 13:45:02,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:45:02,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:45:02,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:45:02,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:45:02,701 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:45:02,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:45:02,702 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:45:02,702 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:45:02,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:45:02,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:45:02,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:45:02,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:45:02,705 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:45:02,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:45:02,706 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:45:02,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:45:02,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:45:02,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:45:02,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:45:02,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:45:02,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:45:02,707 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:45:02,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:45:02,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:45:02,707 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:45:02,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:45:02,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:45:02,708 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_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd 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 -> b9b18ebf4b8789ea2f47784074870c5f6db1e5ba9b6bdc5a046638032691b06b [2024-11-13 13:45:03,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:45:03,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:45:03,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:45:03,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:45:03,041 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:45:03,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i Unable to find full path for "g++" [2024-11-13 13:45:04,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:45:05,404 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:45:05,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i [2024-11-13 13:45:05,462 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/data/12c7c4568/5261263503c9475089b5ae2e47e028eb/FLAGf916353ef [2024-11-13 13:45:05,482 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/data/12c7c4568/5261263503c9475089b5ae2e47e028eb [2024-11-13 13:45:05,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:45:05,487 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:45:05,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:45:05,491 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:45:05,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:45:05,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:45:05" (1/1) ... [2024-11-13 13:45:05,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a3cf2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:05, skipping insertion in model container [2024-11-13 13:45:05,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:45:05" (1/1) ... [2024-11-13 13:45:05,599 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:45:05,923 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_000fcfff-4c69-4f57-a455-d368e51c1c6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4497,4510] [2024-11-13 13:45:05,931 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_000fcfff-4c69-4f57-a455-d368e51c1c6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4557,4570] [2024-11-13 13:45:07,027 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:07,032 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:07,032 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:07,033 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:07,039 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:07,060 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:07,061 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:07,064 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:07,065 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,074 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,075 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:45:08,274 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:45:08,293 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_000fcfff-4c69-4f57-a455-d368e51c1c6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4497,4510] [2024-11-13 13:45:08,297 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_000fcfff-4c69-4f57-a455-d368e51c1c6c/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4557,4570] [2024-11-13 13:45:08,357 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,358 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,360 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,361 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,362 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,370 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,371 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,374 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,375 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-13 13:45:08,543 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,544 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 13:45:08,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-13 13:45:08,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:45:08,819 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:45:08,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08 WrapperNode [2024-11-13 13:45:08,820 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:45:08,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:45:08,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:45:08,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:45:08,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:08,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,027 INFO L138 Inliner]: procedures = 679, calls = 2625, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 1000 [2024-11-13 13:45:09,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:45:09,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:45:09,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:45:09,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:45:09,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,078 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,185 INFO L175 MemorySlicer]: Split 555 memory accesses to 8 slices as follows [2, 257, 242, 4, 34, 7, 4, 5]. 46 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 0, 6, 2, 2, 2, 0, 5]. The 501 writes are split as follows [0, 257, 233, 0, 9, 0, 2, 0]. [2024-11-13 13:45:09,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,185 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:45:09,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:45:09,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:45:09,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:45:09,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (1/1) ... [2024-11-13 13:45:09,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:45:09,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:45:09,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:45:09,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:45:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-13 13:45:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-13 13:45:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-13 13:45:09,372 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-13 13:45:09,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 13:45:09,373 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-13 13:45:09,373 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-13 13:45:09,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-13 13:45:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-13 13:45:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-13 13:45:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-13 13:45:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-13 13:45:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-13 13:45:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-13 13:45:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-13 13:45:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-13 13:45:09,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-13 13:45:09,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 13:45:09,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 13:45:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 13:45:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-13 13:45:09,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-13 13:45:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-13 13:45:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-13 13:45:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-13 13:45:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-13 13:45:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-13 13:45:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-13 13:45:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-13 13:45:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 13:45:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:45:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-13 13:45:09,380 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-13 13:45:09,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:45:09,381 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 13:45:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-13 13:45:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-13 13:45:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-13 13:45:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-13 13:45:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-13 13:45:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 13:45:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 13:45:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 13:45:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 13:45:09,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-13 13:45:09,386 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 13:45:09,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 13:45:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-13 13:45:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-13 13:45:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-13 13:45:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-13 13:45:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-13 13:45:09,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-13 13:45:09,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-13 13:45:09,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-13 13:45:09,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2024-11-13 13:45:09,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2024-11-13 13:45:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:45:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:45:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 13:45:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 13:45:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 13:45:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 13:45:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 13:45:09,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 13:45:09,897 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:45:09,899 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:45:20,270 INFO L? ?]: Removed 230 outVars from TransFormulas that were not future-live. [2024-11-13 13:45:20,270 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:45:20,282 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:45:20,282 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:45:20,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:45:20 BoogieIcfgContainer [2024-11-13 13:45:20,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:45:20,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:45:20,285 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:45:20,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:45:20,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:45:05" (1/3) ... [2024-11-13 13:45:20,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcbeef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:45:20, skipping insertion in model container [2024-11-13 13:45:20,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:45:08" (2/3) ... [2024-11-13 13:45:20,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcbeef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:45:20, skipping insertion in model container [2024-11-13 13:45:20,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:45:20" (3/3) ... [2024-11-13 13:45:20,293 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness_negated.i [2024-11-13 13:45:20,308 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:45:20,309 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_read_u8_harness_negated.i that has 16 procedures, 186 locations, 1 initial locations, 16 loop locations, and 1 error locations. [2024-11-13 13:45:20,366 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:45:20,378 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;@6400685, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:45:20,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:45:20,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:45:20,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 13:45:20,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:45:20,397 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:45:20,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:45:20,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:45:20,403 INFO L85 PathProgramCache]: Analyzing trace with hash 358773453, now seen corresponding path program 1 times [2024-11-13 13:45:20,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:45:20,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052780988] [2024-11-13 13:45:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:45:20,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:46:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:46:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:46:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 13:46:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:46:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 13:46:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:46:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:46:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 13:46:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 13:46:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 13:46:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:46:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:46:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:46:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 13:46:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:56,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 13:46:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:57,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 13:46:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:46:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-13 13:46:57,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:46:57,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052780988] [2024-11-13 13:46:57,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052780988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:46:57,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:46:57,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:46:57,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949229414] [2024-11-13 13:46:57,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:46:57,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:46:57,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:46:57,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:46:57,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:46:57,063 INFO L87 Difference]: Start difference. First operand has 151 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 104 states have internal predecessors, (134), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 13:47:01,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:47:03,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:47:03,192 INFO L93 Difference]: Finished difference Result 299 states and 441 transitions. [2024-11-13 13:47:03,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:47:03,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107 [2024-11-13 13:47:03,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:47:03,207 INFO L225 Difference]: With dead ends: 299 [2024-11-13 13:47:03,207 INFO L226 Difference]: Without dead ends: 145 [2024-11-13 13:47:03,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:47:03,220 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 38 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:47:03,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 254 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2024-11-13 13:47:03,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-13 13:47:03,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-13 13:47:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 98 states have (on average 1.2857142857142858) internal successors, (126), 99 states have internal predecessors, (126), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-13 13:47:03,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 201 transitions. [2024-11-13 13:47:03,276 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 201 transitions. Word has length 107 [2024-11-13 13:47:03,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:47:03,277 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 201 transitions. [2024-11-13 13:47:03,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 13:47:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 201 transitions. [2024-11-13 13:47:03,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 13:47:03,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:47:03,284 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:47:03,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:47:03,284 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:47:03,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:47:03,285 INFO L85 PathProgramCache]: Analyzing trace with hash -696448629, now seen corresponding path program 1 times [2024-11-13 13:47:03,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:47:03,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682145773] [2024-11-13 13:47:03,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:47:03,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:48:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:36,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:48:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:48:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 13:48:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:48:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 13:48:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 13:48:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:48:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 13:48:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 13:48:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 13:48:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 13:48:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:48:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:48:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 13:48:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 13:48:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 13:48:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:48:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-13 13:48:37,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:48:37,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682145773] [2024-11-13 13:48:37,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682145773] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:48:37,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633954733] [2024-11-13 13:48:37,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:48:37,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:48:37,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:48:37,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:48:37,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:50:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:50:15,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 7755 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:50:15,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:50:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-13 13:50:16,612 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:50:16,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633954733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:50:16,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:50:16,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-13 13:50:16,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095447778] [2024-11-13 13:50:16,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:50:16,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:50:16,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:50:16,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:50:16,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:50:16,616 INFO L87 Difference]: Start difference. First operand 145 states and 201 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-13 13:50:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:50:18,638 INFO L93 Difference]: Finished difference Result 274 states and 391 transitions. [2024-11-13 13:50:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:50:18,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 107 [2024-11-13 13:50:18,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:50:18,642 INFO L225 Difference]: With dead ends: 274 [2024-11-13 13:50:18,642 INFO L226 Difference]: Without dead ends: 148 [2024-11-13 13:50:18,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:50:18,645 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 207 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:50:18,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 599 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 13:50:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-13 13:50:18,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-13 13:50:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 100 states have (on average 1.28) internal successors, (128), 102 states have internal predecessors, (128), 38 states have call successors, (38), 8 states have call predecessors, (38), 9 states have return successors, (45), 37 states have call predecessors, (45), 37 states have call successors, (45) [2024-11-13 13:50:18,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 211 transitions. [2024-11-13 13:50:18,675 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 211 transitions. Word has length 107 [2024-11-13 13:50:18,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:50:18,675 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 211 transitions. [2024-11-13 13:50:18,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-13 13:50:18,676 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 211 transitions. [2024-11-13 13:50:18,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 13:50:18,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:50:18,678 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:50:18,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:50:18,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-13 13:50:18,879 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:50:18,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:50:18,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1579308986, now seen corresponding path program 1 times [2024-11-13 13:50:18,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:50:18,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811436896] [2024-11-13 13:50:18,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:50:18,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:51:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:59,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:51:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:59,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:51:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:59,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 13:51:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:59,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:51:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:59,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 13:51:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:59,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 13:51:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:59,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:51:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:59,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 13:51:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:59,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:52:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:00,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 13:52:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:00,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 13:52:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:00,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 13:52:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:00,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 13:52:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:00,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 13:52:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:00,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 13:52:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:00,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 13:52:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:52:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-13 13:52:00,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:52:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811436896] [2024-11-13 13:52:00,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811436896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:52:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437269537] [2024-11-13 13:52:00,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:52:00,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:52:00,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:52:00,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:52:00,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:53:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:53:41,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 7760 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:53:41,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:53:42,297 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-13 13:53:42,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:53:42,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437269537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:53:42,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:53:42,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-13 13:53:42,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881248911] [2024-11-13 13:53:42,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:53:42,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:53:42,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:53:42,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:53:42,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:53:42,300 INFO L87 Difference]: Start difference. First operand 148 states and 211 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-13 13:53:44,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:53:44,822 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2024-11-13 13:53:44,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:53:44,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 109 [2024-11-13 13:53:44,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:53:44,825 INFO L225 Difference]: With dead ends: 264 [2024-11-13 13:53:44,825 INFO L226 Difference]: Without dead ends: 148 [2024-11-13 13:53:44,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:53:44,828 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 206 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:53:44,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 757 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 13:53:44,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-13 13:53:44,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-13 13:53:44,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 100 states have (on average 1.28) internal successors, (128), 102 states have internal predecessors, (128), 38 states have call successors, (38), 8 states have call predecessors, (38), 9 states have return successors, (43), 37 states have call predecessors, (43), 37 states have call successors, (43) [2024-11-13 13:53:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 209 transitions. [2024-11-13 13:53:44,847 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 209 transitions. Word has length 109 [2024-11-13 13:53:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:53:44,847 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 209 transitions. [2024-11-13 13:53:44,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-13 13:53:44,848 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 209 transitions. [2024-11-13 13:53:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 13:53:44,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:53:44,850 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 3, 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] [2024-11-13 13:53:44,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 13:53:45,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-13 13:53:45,051 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:53:45,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:53:45,052 INFO L85 PathProgramCache]: Analyzing trace with hash 101047723, now seen corresponding path program 2 times [2024-11-13 13:53:45,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:53:45,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445994137] [2024-11-13 13:53:45,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:53:45,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:55:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:55:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:55:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 13:55:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:55:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 13:55:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 13:55:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:55:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 13:55:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:55:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 13:55:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 13:55:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 13:55:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 13:55:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 13:55:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:55:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:30,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 13:55:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:55:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-13 13:55:31,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:55:31,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445994137] [2024-11-13 13:55:31,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445994137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:55:31,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86163676] [2024-11-13 13:55:31,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:55:31,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:55:31,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:55:31,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:55:31,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:57:19,078 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 13:57:19,078 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:57:19,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 7407 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 13:57:19,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:57:20,440 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-13 13:57:20,440 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:57:20,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86163676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:57:20,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:57:20,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-13 13:57:20,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785950495] [2024-11-13 13:57:20,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:57:20,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:57:20,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:57:20,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:57:20,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:57:20,443 INFO L87 Difference]: Start difference. First operand 148 states and 209 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 13:57:21,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:57:21,055 INFO L93 Difference]: Finished difference Result 156 states and 217 transitions. [2024-11-13 13:57:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:57:21,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-11-13 13:57:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:57:21,058 INFO L225 Difference]: With dead ends: 156 [2024-11-13 13:57:21,059 INFO L226 Difference]: Without dead ends: 154 [2024-11-13 13:57:21,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:57:21,060 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 3 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:57:21,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1165 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:57:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-13 13:57:21,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2024-11-13 13:57:21,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 105 states have internal predecessors, (131), 39 states have call successors, (39), 9 states have call predecessors, (39), 10 states have return successors, (44), 38 states have call predecessors, (44), 38 states have call successors, (44) [2024-11-13 13:57:21,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 214 transitions. [2024-11-13 13:57:21,080 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 214 transitions. Word has length 111 [2024-11-13 13:57:21,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:57:21,081 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 214 transitions. [2024-11-13 13:57:21,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 13:57:21,082 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 214 transitions. [2024-11-13 13:57:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 13:57:21,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:57:21,084 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 3, 3, 3, 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] [2024-11-13 13:57:21,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:57:21,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:57:21,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:57:21,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:57:21,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1784153840, now seen corresponding path program 3 times [2024-11-13 13:57:21,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:57:21,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767779072] [2024-11-13 13:57:21,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:57:21,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:59:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 13:59:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 13:59:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 13:59:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:59:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 13:59:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 13:59:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 13:59:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 13:59:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 13:59:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 13:59:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 13:59:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 13:59:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 13:59:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 13:59:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 13:59:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 13:59:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:59:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-13 13:59:10,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:59:10,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767779072] [2024-11-13 13:59:10,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767779072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:59:10,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935670345] [2024-11-13 13:59:10,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 13:59:10,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:59:10,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:59:10,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:59:10,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000fcfff-4c69-4f57-a455-d368e51c1c6c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process