./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.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_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/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_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/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_a002040d-c4f0-4bfa-b59d-4546efe04717/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 71e5927fd394f7ee2b7e12cb164a1e2d1990ce0718c7f1e6f5935ec66026c1b2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:27:21,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:27:21,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 14:27:21,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:27:21,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:27:21,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:27:21,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:27:21,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:27:21,271 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:27:21,271 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:27:21,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:27:21,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:27:21,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:27:21,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:27:21,273 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:27:21,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:27:21,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:27:21,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:27:21,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:27:21,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:27:21,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:27:21,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:27:21,275 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:27:21,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:27:21,275 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:27:21,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:27:21,275 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:27:21,276 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:27:21,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:27:21,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:27:21,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:27:21,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:27:21,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:27:21,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:27:21,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:27:21,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:27:21,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:27:21,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:27:21,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:27:21,277 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_a002040d-c4f0-4bfa-b59d-4546efe04717/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 -> 71e5927fd394f7ee2b7e12cb164a1e2d1990ce0718c7f1e6f5935ec66026c1b2 [2024-11-13 14:27:21,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:27:21,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:27:21,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:27:21,640 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:27:21,640 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:27:21,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i Unable to find full path for "g++" [2024-11-13 14:27:23,590 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:27:24,177 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:27:24,177 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i [2024-11-13 14:27:24,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/data/15d84ba5c/987873b8634e4d2e914deee31cd0e276/FLAGd2029e342 [2024-11-13 14:27:24,231 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/data/15d84ba5c/987873b8634e4d2e914deee31cd0e276 [2024-11-13 14:27:24,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:27:24,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:27:24,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:27:24,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:27:24,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:27:24,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:27:24" (1/1) ... [2024-11-13 14:27:24,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43bd766f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:24, skipping insertion in model container [2024-11-13 14:27:24,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:27:24" (1/1) ... [2024-11-13 14:27:24,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:27:24,654 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_a002040d-c4f0-4bfa-b59d-4546efe04717/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2024-11-13 14:27:24,660 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_a002040d-c4f0-4bfa-b59d-4546efe04717/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2024-11-13 14:27:25,697 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:25,698 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:25,698 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:25,699 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:25,702 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:25,717 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:25,718 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:25,720 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:25,722 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,638 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,642 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:27:26,842 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:27:26,861 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_a002040d-c4f0-4bfa-b59d-4546efe04717/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4499,4512] [2024-11-13 14:27:26,866 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_a002040d-c4f0-4bfa-b59d-4546efe04717/sv-benchmarks/c/aws-c-common/aws_byte_cursor_trim_pred_harness.i[4559,4572] [2024-11-13 14:27:26,926 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,929 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,930 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,930 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,931 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,941 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,942 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,943 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:26,945 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:27,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8271] [2024-11-13 14:27:27,156 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:27,156 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-13 14:27:27,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8757-8768] [2024-11-13 14:27:27,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:27:27,394 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:27:27,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27 WrapperNode [2024-11-13 14:27:27,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:27:27,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:27:27,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:27:27,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:27:27,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,599 INFO L138 Inliner]: procedures = 679, calls = 2616, calls flagged for inlining = 62, calls inlined = 10, statements flattened = 900 [2024-11-13 14:27:27,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:27:27,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:27:27,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:27:27,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:27:27,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,729 INFO L175 MemorySlicer]: Split 557 memory accesses to 6 slices as follows [2, 257, 6, 242, 45, 5]. 46 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 0, 6, 12, 5]. The 495 writes are split as follows [0, 257, 2, 232, 4, 0]. [2024-11-13 14:27:27,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:27:27,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:27:27,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:27:27,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:27:27,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (1/1) ... [2024-11-13 14:27:27,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:27:27,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:27:27,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:27:27,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:27:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-13 14:27:27,885 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-13 14:27:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 14:27:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-13 14:27:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-13 14:27:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-13 14:27:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-13 14:27:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-13 14:27:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-13 14:27:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-13 14:27:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-13 14:27:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 14:27:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 14:27:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 14:27:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 14:27:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 14:27:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-13 14:27:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 14:27:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 14:27:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_left_trim_pred [2024-11-13 14:27:27,888 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_left_trim_pred [2024-11-13 14:27:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 14:27:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:27:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 14:27:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 14:27:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 14:27:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-13 14:27:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-13 14:27:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-13 14:27:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:27:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:27:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-13 14:27:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-13 14:27:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-13 14:27:27,889 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-13 14:27:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-13 14:27:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-13 14:27:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-13 14:27:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-13 14:27:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-13 14:27:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-13 14:27:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:27:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:27:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 14:27:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 14:27:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 14:27:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 14:27:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-13 14:27:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-13 14:27:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-13 14:27:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 14:27:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 14:27:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 14:27:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 14:27:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-13 14:27:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-13 14:27:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~uint8_t~0~TO~int [2024-11-13 14:27:27,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~uint8_t~0~TO~int [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 14:27:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 14:27:28,387 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:27:28,390 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:27:37,294 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2024-11-13 14:27:37,294 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:27:37,310 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:27:37,310 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 14:27:37,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:27:37 BoogieIcfgContainer [2024-11-13 14:27:37,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:27:37,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:27:37,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:27:37,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:27:37,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:27:24" (1/3) ... [2024-11-13 14:27:37,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495a3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:27:37, skipping insertion in model container [2024-11-13 14:27:37,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:27:27" (2/3) ... [2024-11-13 14:27:37,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495a3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:27:37, skipping insertion in model container [2024-11-13 14:27:37,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:27:37" (3/3) ... [2024-11-13 14:27:37,326 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_trim_pred_harness.i [2024-11-13 14:27:37,342 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:27:37,345 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_cursor_trim_pred_harness.i that has 9 procedures, 124 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-13 14:27:37,422 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:27:37,437 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;@613a6ef4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:27:37,438 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:27:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 78 states have internal predecessors, (95), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-13 14:27:37,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 14:27:37,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:27:37,456 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:27:37,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:27:37,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:27:37,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1083501485, now seen corresponding path program 1 times [2024-11-13 14:27:37,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:27:37,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167766573] [2024-11-13 14:27:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:27:37,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:29:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:29:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 14:29:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:29:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:29:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 14:29:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:29:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-13 14:29:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 14:29:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:29:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:29:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 14:29:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:29:09,390 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-13 14:29:09,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:29:09,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167766573] [2024-11-13 14:29:09,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167766573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:29:09,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:29:09,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:29:09,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421101388] [2024-11-13 14:29:09,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:29:09,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:29:09,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:29:09,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:29:09,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:29:09,429 INFO L87 Difference]: Start difference. First operand has 124 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 78 states have internal predecessors, (95), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:29:09,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:29:09,484 INFO L93 Difference]: Finished difference Result 244 states and 355 transitions. [2024-11-13 14:29:09,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:29:09,489 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2024-11-13 14:29:09,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:29:09,498 INFO L225 Difference]: With dead ends: 244 [2024-11-13 14:29:09,498 INFO L226 Difference]: Without dead ends: 115 [2024-11-13 14:29:09,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:29:09,511 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:29:09,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:29:09,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-13 14:29:09,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-13 14:29:09,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 71 states have internal predecessors, (82), 37 states have call successors, (37), 8 states have call predecessors, (37), 7 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-13 14:29:09,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2024-11-13 14:29:09,578 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 79 [2024-11-13 14:29:09,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:29:09,580 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2024-11-13 14:29:09,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:29:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2024-11-13 14:29:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-13 14:29:09,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:29:09,586 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:29:09,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:29:09,587 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:29:09,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:29:09,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1045425776, now seen corresponding path program 1 times [2024-11-13 14:29:09,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:29:09,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855251021] [2024-11-13 14:29:09,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:29:09,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:30:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:52,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:30:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:52,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 14:30:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:52,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:30:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:53,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:30:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:53,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 14:30:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:53,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 14:30:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:53,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-13 14:30:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:53,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 14:30:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:53,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 14:30:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:53,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:30:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:53,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:30:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:30:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-13 14:30:53,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:30:53,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855251021] [2024-11-13 14:30:53,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855251021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:30:53,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915310662] [2024-11-13 14:30:53,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:30:53,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:30:53,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:30:53,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:30:53,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:32:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:32:34,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 7637 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:32:34,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:32:35,271 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 14:32:35,272 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:32:35,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915310662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:32:35,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:32:35,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-13 14:32:35,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154169965] [2024-11-13 14:32:35,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:32:35,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:32:35,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:32:35,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:32:35,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:32:35,280 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:32:36,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:32:36,982 INFO L93 Difference]: Finished difference Result 213 states and 298 transitions. [2024-11-13 14:32:36,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:32:36,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 81 [2024-11-13 14:32:36,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:32:36,986 INFO L225 Difference]: With dead ends: 213 [2024-11-13 14:32:36,987 INFO L226 Difference]: Without dead ends: 118 [2024-11-13 14:32:36,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:32:36,989 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 156 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:32:36,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 296 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 14:32:36,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-13 14:32:37,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-13 14:32:37,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 74 states have internal predecessors, (84), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (45), 35 states have call predecessors, (45), 35 states have call successors, (45) [2024-11-13 14:32:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 166 transitions. [2024-11-13 14:32:37,018 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 166 transitions. Word has length 81 [2024-11-13 14:32:37,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:32:37,018 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 166 transitions. [2024-11-13 14:32:37,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 14:32:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 166 transitions. [2024-11-13 14:32:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 14:32:37,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:32:37,021 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:32:37,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:32:37,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-13 14:32:37,225 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:32:37,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:32:37,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1045662251, now seen corresponding path program 1 times [2024-11-13 14:32:37,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:32:37,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487967736] [2024-11-13 14:32:37,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:32:37,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:34:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:34:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 14:34:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:14,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:34:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 14:34:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:34:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:34:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 14:34:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-13 14:34:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-13 14:34:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 14:34:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 14:34:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:34:15,643 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 14:34:15,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:34:15,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487967736] [2024-11-13 14:34:15,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487967736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:34:15,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514086105] [2024-11-13 14:34:15,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:34:15,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:34:15,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:34:15,648 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:34:15,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:35:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:35:49,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 7642 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:35:49,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:35:50,802 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 14:35:50,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:35:50,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514086105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:35:50,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:35:50,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-13 14:35:50,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326475021] [2024-11-13 14:35:50,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:35:50,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:35:50,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:35:50,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:35:50,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:35:50,809 INFO L87 Difference]: Start difference. First operand 118 states and 166 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 14:35:52,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:35:52,595 INFO L93 Difference]: Finished difference Result 208 states and 295 transitions. [2024-11-13 14:35:52,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:35:52,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 83 [2024-11-13 14:35:52,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:35:52,599 INFO L225 Difference]: With dead ends: 208 [2024-11-13 14:35:52,600 INFO L226 Difference]: Without dead ends: 118 [2024-11-13 14:35:52,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:35:52,602 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 170 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:35:52,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 394 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 14:35:52,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-13 14:35:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-13 14:35:52,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 72 states have (on average 1.1666666666666667) internal successors, (84), 74 states have internal predecessors, (84), 37 states have call successors, (37), 8 states have call predecessors, (37), 8 states have return successors, (43), 35 states have call predecessors, (43), 35 states have call successors, (43) [2024-11-13 14:35:52,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 164 transitions. [2024-11-13 14:35:52,625 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 164 transitions. Word has length 83 [2024-11-13 14:35:52,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:35:52,625 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 164 transitions. [2024-11-13 14:35:52,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-13 14:35:52,626 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 164 transitions. [2024-11-13 14:35:52,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 14:35:52,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:35:52,628 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:35:52,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:35:52,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-13 14:35:52,829 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:35:52,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:35:52,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1373240102, now seen corresponding path program 2 times [2024-11-13 14:35:52,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:35:52,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759538440] [2024-11-13 14:35:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:35:52,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:37:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 14:37:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 14:37:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:37:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 14:37:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:37:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 14:37:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 14:37:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:37:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:37:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:37:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 14:37:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:37:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 14:37:35,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:37:35,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759538440] [2024-11-13 14:37:35,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759538440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:37:35,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587472419] [2024-11-13 14:37:35,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:37:35,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:37:35,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:37:35,959 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:37:35,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a002040d-c4f0-4bfa-b59d-4546efe04717/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process