./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_string_eq_c_str_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 b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 09:01:01,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 09:01:01,566 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 09:01:01,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 09:01:01,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 09:01:01,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 09:01:01,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 09:01:01,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 09:01:01,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 09:01:01,617 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 09:01:01,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 09:01:01,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 09:01:01,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 09:01:01,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 09:01:01,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 09:01:01,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 09:01:01,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 09:01:01,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 09:01:01,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 09:01:01,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 09:01:01,623 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 09:01:01,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 09:01:01,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 09:01:01,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 09:01:01,624 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 09:01:01,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 09:01:01,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 09:01:01,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 09:01:01,625 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 09:01:01,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:01:01,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 09:01:01,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 09:01:01,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 09:01:01,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 09:01:01,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 09:01:01,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 09:01:01,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 09:01:01,626 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 09:01:01,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 09:01:01,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2024-11-12 09:01:01,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 09:01:01,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 09:01:01,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 09:01:01,894 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 09:01:01,895 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 09:01:01,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2024-11-12 09:01:03,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 09:01:03,845 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 09:01:03,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2024-11-12 09:01:03,892 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2685376a/24020cf248434bfeb9631c826272f500/FLAG7e013d996 [2024-11-12 09:01:03,906 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2685376a/24020cf248434bfeb9631c826272f500 [2024-11-12 09:01:03,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 09:01:03,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 09:01:03,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 09:01:03,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 09:01:03,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 09:01:03,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:01:03" (1/1) ... [2024-11-12 09:01:03,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1065aa71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:03, skipping insertion in model container [2024-11-12 09:01:03,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:01:03" (1/1) ... [2024-11-12 09:01:04,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 09:01:04,361 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_string_eq_c_str_harness.i[4493,4506] [2024-11-12 09:01:04,372 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_string_eq_c_str_harness.i[4553,4566] [2024-11-12 09:01:05,063 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,064 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,064 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,065 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,066 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,077 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,077 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,079 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,080 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,625 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,625 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:01:05,701 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 09:01:05,717 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_string_eq_c_str_harness.i[4493,4506] [2024-11-12 09:01:05,721 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_string_eq_c_str_harness.i[4553,4566] [2024-11-12 09:01:05,775 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,776 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,776 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,777 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,777 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,793 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,796 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,797 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:05,797 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:06,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8588] [2024-11-12 09:01:06,008 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:06,008 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 09:01:06,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:01:06,216 INFO L204 MainTranslator]: Completed translation [2024-11-12 09:01:06,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06 WrapperNode [2024-11-12 09:01:06,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 09:01:06,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 09:01:06,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 09:01:06,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 09:01:06,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,395 INFO L138 Inliner]: procedures = 670, calls = 2270, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 396 [2024-11-12 09:01:06,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 09:01:06,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 09:01:06,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 09:01:06,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 09:01:06,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,417 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,449 INFO L175 MemorySlicer]: Split 279 memory accesses to 4 slices as follows [2, 5, 257, 15]. 92 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 260 writes are split as follows [0, 0, 257, 3]. [2024-11-12 09:01:06,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 09:01:06,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 09:01:06,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 09:01:06,515 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 09:01:06,519 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (1/1) ... [2024-11-12 09:01:06,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:01:06,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 09:01:06,556 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) [2024-11-12 09:01:06,560 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 [2024-11-12 09:01:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-12 09:01:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-12 09:01:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-12 09:01:06,658 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-12 09:01:06,658 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-12 09:01:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 09:01:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 09:01:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 09:01:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 09:01:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 09:01:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 09:01:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 09:01:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 09:01:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 09:01:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 09:01:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-12 09:01:06,661 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-12 09:01:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-12 09:01:06,661 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-12 09:01:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 09:01:06,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 09:01:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 09:01:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 09:01:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 09:01:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 09:01:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 09:01:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 09:01:06,936 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 09:01:06,939 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 09:01:14,128 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-11-12 09:01:14,128 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 09:01:14,145 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 09:01:14,146 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 09:01:14,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:01:14 BoogieIcfgContainer [2024-11-12 09:01:14,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 09:01:14,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 09:01:14,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 09:01:14,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 09:01:14,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 09:01:03" (1/3) ... [2024-11-12 09:01:14,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e151b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:01:14, skipping insertion in model container [2024-11-12 09:01:14,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:01:06" (2/3) ... [2024-11-12 09:01:14,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e151b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:01:14, skipping insertion in model container [2024-11-12 09:01:14,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:01:14" (3/3) ... [2024-11-12 09:01:14,157 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness.i [2024-11-12 09:01:14,173 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 09:01:14,174 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 09:01:14,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 09:01:14,251 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;@55412159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 09:01:14,252 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 09:01:14,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-12 09:01:14,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-12 09:01:14,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:01:14,264 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 09:01:14,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:01:14,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:01:14,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1307493695, now seen corresponding path program 1 times [2024-11-12 09:01:14,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:01:14,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868305156] [2024-11-12 09:01:14,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:01:14,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:02:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:02:03,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:02:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:02:03,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 09:02:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:02:03,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-12 09:02:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:02:03,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-12 09:02:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:02:03,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 09:02:03,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:02:03,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868305156] [2024-11-12 09:02:03,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868305156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:02:03,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:02:03,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 09:02:03,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604306980] [2024-11-12 09:02:03,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:02:03,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 09:02:03,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:02:03,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 09:02:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 09:02:03,875 INFO L87 Difference]: Start difference. First operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 09:02:03,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:02:03,916 INFO L93 Difference]: Finished difference Result 205 states and 281 transitions. [2024-11-12 09:02:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 09:02:03,921 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-11-12 09:02:03,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:02:03,931 INFO L225 Difference]: With dead ends: 205 [2024-11-12 09:02:03,931 INFO L226 Difference]: Without dead ends: 101 [2024-11-12 09:02:03,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 09:02:03,939 INFO L435 NwaCegarLoop]: 136 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, 136 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 [2024-11-12 09:02:03,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 09:02:03,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-12 09:02:03,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-12 09:02:03,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-12 09:02:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 128 transitions. [2024-11-12 09:02:03,995 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 128 transitions. Word has length 36 [2024-11-12 09:02:03,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:02:03,996 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 128 transitions. [2024-11-12 09:02:03,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 09:02:03,997 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 128 transitions. [2024-11-12 09:02:04,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-12 09:02:04,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:02:04,000 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 09:02:04,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 09:02:04,001 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:02:04,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:02:04,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1298529859, now seen corresponding path program 1 times [2024-11-12 09:02:04,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:02:04,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189264916] [2024-11-12 09:02:04,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:02:04,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms