./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8ccdea72ddab462e9567b7f56695cddd8d47da872c9a3d4b09c71a162ef49999 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:54:10,219 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:54:10,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:54:10,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:54:10,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:54:10,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:54:10,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:54:10,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:54:10,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:54:10,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:54:10,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:54:10,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:54:10,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:54:10,308 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:54:10,308 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:54:10,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:54:10,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:54:10,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:54:10,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:54:10,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:54:10,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:54:10,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:54:10,312 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:54:10,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:54:10,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:54:10,312 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:54:10,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:54:10,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:54:10,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:54:10,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:54:10,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:54:10,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:54:10,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:54:10,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:54:10,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:54:10,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:54:10,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:54:10,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:54:10,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:54:10,315 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ccdea72ddab462e9567b7f56695cddd8d47da872c9a3d4b09c71a162ef49999 [2024-11-10 10:54:10,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:54:10,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:54:10,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:54:10,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:54:10,546 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:54:10,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2024-11-10 10:54:11,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:54:12,186 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:54:12,187 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2024-11-10 10:54:12,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e903368f7/f4bf73341d714d2e9f0425524e858b55/FLAG1f1feca73 [2024-11-10 10:54:12,238 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e903368f7/f4bf73341d714d2e9f0425524e858b55 [2024-11-10 10:54:12,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:54:12,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:54:12,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:54:12,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:54:12,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:54:12,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:54:12" (1/1) ... [2024-11-10 10:54:12,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51759b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:12, skipping insertion in model container [2024-11-10 10:54:12,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:54:12" (1/1) ... [2024-11-10 10:54:12,335 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:54:12,585 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2024-11-10 10:54:12,590 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2024-11-10 10:54:13,020 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,021 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,021 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,022 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,025 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,039 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,039 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,041 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,041 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,481 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,485 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:54:13,577 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:54:13,592 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4504,4517] [2024-11-10 10:54:13,594 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i[4564,4577] [2024-11-10 10:54:13,629 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,629 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,629 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,630 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,631 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,639 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,639 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,640 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,641 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-10 10:54:13,744 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,745 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:54:13,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-10 10:54:13,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:54:14,064 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:54:14,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14 WrapperNode [2024-11-10 10:54:14,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:54:14,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:54:14,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:54:14,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:54:14,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,277 INFO L138 Inliner]: procedures = 680, calls = 2647, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 835 [2024-11-10 10:54:14,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:54:14,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:54:14,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:54:14,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:54:14,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,369 INFO L175 MemorySlicer]: Split 548 memory accesses to 8 slices as follows [2, 4, 257, 238, 6, 2, 34, 5]. 47 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 0, 6, 0, 0, 4, 5]. The 494 writes are split as follows [0, 0, 257, 232, 2, 0, 3, 0]. [2024-11-10 10:54:14,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,402 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,415 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:54:14,427 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:54:14,427 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:54:14,427 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:54:14,428 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (1/1) ... [2024-11-10 10:54:14,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:54:14,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:54:14,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:54:14,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:54:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-10 10:54:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-10 10:54:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:54:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:54:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:54:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:54:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:54:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:54:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:54:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:54:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:54:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-10 10:54:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-10 10:54:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:54:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:54:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:54:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:54:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:54:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:54:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 10:54:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-10 10:54:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2024-11-10 10:54:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2024-11-10 10:54:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:54:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:54:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:54:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:54:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-10 10:54:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-10 10:54:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:54:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:54:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:54:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:54:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:54:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:54:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 10:54:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-10 10:54:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:54:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:54:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:54:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:54:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-10 10:54:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-10 10:54:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:54:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:54:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:54:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:54:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:54:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:54:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-10 10:54:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-10 10:54:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:54:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:54:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 10:54:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-10 10:54:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:54:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:54:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:54:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:54:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:54:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:54:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 10:54:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-10 10:54:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:54:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:54:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:54:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:54:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:54:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:54:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 10:54:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-10 10:54:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-10 10:54:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2024-11-10 10:54:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2024-11-10 10:54:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2024-11-10 10:54:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:54:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:54:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:54:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:54:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:54:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:54:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 10:54:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-10 10:54:14,810 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:54:14,812 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:54:14,855 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-10 10:54:14,900 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-10 10:54:14,927 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6669: havoc #t~mem509; [2024-11-10 10:54:14,937 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:54:14,958 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7395: havoc #t~mem694;havoc #t~mem695;havoc #t~mem696.base, #t~mem696.offset;havoc #t~short697;havoc #t~mem698;havoc #t~mem699.base, #t~mem699.offset;havoc #t~short700;havoc #t~short701;havoc #t~short702;havoc #t~short703; [2024-11-10 10:54:22,167 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-11-10 10:54:22,168 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:54:22,181 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:54:22,181 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:54:22,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:54:22 BoogieIcfgContainer [2024-11-10 10:54:22,182 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:54:22,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:54:22,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:54:22,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:54:22,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:54:12" (1/3) ... [2024-11-10 10:54:22,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17104de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:54:22, skipping insertion in model container [2024-11-10 10:54:22,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:54:14" (2/3) ... [2024-11-10 10:54:22,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17104de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:54:22, skipping insertion in model container [2024-11-10 10:54:22,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:54:22" (3/3) ... [2024-11-10 10:54:22,191 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness.i [2024-11-10 10:54:22,204 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:54:22,204 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:54:22,260 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:54:22,267 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;@29573004, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:54:22,267 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:54:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 83 states have internal predecessors, (103), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-10 10:54:22,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-10 10:54:22,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:54:22,287 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:54:22,287 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:54:22,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:54:22,292 INFO L85 PathProgramCache]: Analyzing trace with hash 926221867, now seen corresponding path program 1 times [2024-11-10 10:54:22,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:54:22,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878845401] [2024-11-10 10:54:22,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:54:22,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:55:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:40,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:55:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:40,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:55:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:40,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:55:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:40,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:55:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:40,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 10:55:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:40,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 10:55:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:40,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 10:55:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:41,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 10:55:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:41,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:55:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:41,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 10:55:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:41,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 10:55:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:41,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 10:55:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:41,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 10:55:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:41,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 10:55:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:41,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-10 10:55:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:55:41,134 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-10 10:55:41,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:55:41,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878845401] [2024-11-10 10:55:41,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878845401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:55:41,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:55:41,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:55:41,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475080607] [2024-11-10 10:55:41,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:55:41,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:55:41,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:55:41,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:55:41,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:55:41,166 INFO L87 Difference]: Start difference. First operand has 135 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 83 states have internal predecessors, (103), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-10 10:55:45,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:55:48,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:55:48,492 INFO L93 Difference]: Finished difference Result 268 states and 394 transitions. [2024-11-10 10:55:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:55:48,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 95 [2024-11-10 10:55:48,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:55:48,503 INFO L225 Difference]: With dead ends: 268 [2024-11-10 10:55:48,503 INFO L226 Difference]: Without dead ends: 131 [2024-11-10 10:55:48,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:55:48,512 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 134 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 114 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-10 10:55:48,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 126 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-10 10:55:48,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-10 10:55:48,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2024-11-10 10:55:48,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.2236842105263157) internal successors, (93), 77 states have internal predecessors, (93), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-10 10:55:48,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2024-11-10 10:55:48,570 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 95 [2024-11-10 10:55:48,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:55:48,571 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2024-11-10 10:55:48,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-10 10:55:48,571 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2024-11-10 10:55:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-10 10:55:48,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:55:48,574 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:55:48,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:55:48,575 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:55:48,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:55:48,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1398190519, now seen corresponding path program 1 times [2024-11-10 10:55:48,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:55:48,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087972780] [2024-11-10 10:55:48,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:55:48,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms