./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:59:45,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:59:45,956 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:59:45,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:59:45,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:59:45,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:59:45,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:59:45,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:59:45,996 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:59:45,996 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:59:45,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:59:45,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:59:45,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:59:45,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:59:45,997 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:59:45,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:59:45,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:59:45,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:59:45,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:59:45,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:59:45,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:59:45,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:59:45,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:59:45,999 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:59:45,999 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:59:45,999 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:59:45,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:59:45,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:59:45,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:59:45,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:59:46,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:59:46,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:59:46,000 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:59:46,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:59:46,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:59:46,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:59:46,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:59:46,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:59:46,000 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:59:46,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:59:46,001 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 -> /storage/repos/ultimate-jdk21/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 -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2025-02-08 01:59:46,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:59:46,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:59:46,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:59:46,213 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:59:46,213 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:59:46,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2025-02-08 01:59:47,312 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cfa307bcb/d59db756b8ca4722abbb98865df9b2a2/FLAG1aa15609a [2025-02-08 01:59:47,749 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:59:47,751 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2025-02-08 01:59:47,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cfa307bcb/d59db756b8ca4722abbb98865df9b2a2/FLAG1aa15609a [2025-02-08 01:59:47,800 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cfa307bcb/d59db756b8ca4722abbb98865df9b2a2 [2025-02-08 01:59:47,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:59:47,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:59:47,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:59:47,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:59:47,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:59:47,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:59:47" (1/1) ... [2025-02-08 01:59:47,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153b80b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:47, skipping insertion in model container [2025-02-08 01:59:47,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:59:47" (1/1) ... [2025-02-08 01:59:47,878 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:59:48,065 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2025-02-08 01:59:48,074 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2025-02-08 01:59:48,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,549 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,549 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,549 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,569 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,570 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,572 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,572 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,993 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:48,993 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:59:49,136 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:59:49,149 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2025-02-08 01:59:49,150 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2025-02-08 01:59:49,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,190 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,191 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,192 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8253] [2025-02-08 01:59:49,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:59:49,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8739-8750] [2025-02-08 01:59:49,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:59:49,548 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:59:49,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49 WrapperNode [2025-02-08 01:59:49,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:59:49,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:59:49,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:59:49,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:59:49,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,668 INFO L138 Inliner]: procedures = 682, calls = 2786, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 823 [2025-02-08 01:59:49,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:59:49,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:59:49,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:59:49,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:59:49,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,684 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,734 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 257, 11, 238, 5, 16]. 49 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 0, 6, 5, 16]. The 492 writes are split as follows [0, 257, 3, 232, 0, 0]. [2025-02-08 01:59:49,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,769 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:59:49,797 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:59:49,797 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:59:49,797 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:59:49,798 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (1/1) ... [2025-02-08 01:59:49,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:59:49,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:59:49,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:59:49,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:59:49,842 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-02-08 01:59:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-02-08 01:59:49,843 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2025-02-08 01:59:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2025-02-08 01:59:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-02-08 01:59:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-02-08 01:59:49,844 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:59:49,845 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:59:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:59:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:59:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:59:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-02-08 01:59:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:59:49,846 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:59:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:59:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:59:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:59:50,025 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:59:50,027 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:59:50,063 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-08 01:59:50,093 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6256: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-02-08 01:59:50,096 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:59:50,104 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:59:50,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6803: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-02-08 01:59:57,340 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2025-02-08 01:59:57,341 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:59:57,350 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:59:57,351 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:59:57,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:59:57 BoogieIcfgContainer [2025-02-08 01:59:57,352 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:59:57,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:59:57,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:59:57,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:59:57,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:59:47" (1/3) ... [2025-02-08 01:59:57,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff0a178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:59:57, skipping insertion in model container [2025-02-08 01:59:57,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:49" (2/3) ... [2025-02-08 01:59:57,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff0a178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:59:57, skipping insertion in model container [2025-02-08 01:59:57,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:59:57" (3/3) ... [2025-02-08 01:59:57,359 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2025-02-08 01:59:57,370 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:59:57,371 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_compare_harness.i that has 11 procedures, 118 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:59:57,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:59:57,422 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;@c73e273, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:59:57,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:59:57,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 74 states have internal predecessors, (94), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-02-08 01:59:57,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-08 01:59:57,431 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:59:57,431 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2025-02-08 01:59:57,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:59:57,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:59:57,436 INFO L85 PathProgramCache]: Analyzing trace with hash -89968007, now seen corresponding path program 1 times [2025-02-08 01:59:57,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:59:57,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38931138] [2025-02-08 01:59:57,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:59:57,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 02:01:03,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 02:01:04,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 02:01:04,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 02:01:04,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 02:01:04,852 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-08 02:01:04,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 02:01:04,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38931138] [2025-02-08 02:01:04,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38931138] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 02:01:04,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794815918] [2025-02-08 02:01:04,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 02:01:04,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 02:01:04,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 02:01:04,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 02:01:04,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process