./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_negated.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 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:24:30,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:24:30,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:24:30,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:24:30,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:24:30,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:24:30,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:24:30,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:24:30,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:24:30,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:24:30,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:24:30,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:24:30,983 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:24:30,984 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:24:30,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:24:30,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:24:30,984 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 -> 965d656958c5277ff7b46967a72c2c81e4c2c563a1b6d02990446bd426a67de4 [2025-02-06 05:24:31,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:24:31,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:24:31,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:24:31,193 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:24:31,193 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:24:31,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-02-06 05:24:32,325 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/53662ad44/1977792816694addb35d5ec296594579/FLAG2f508252c [2025-02-06 05:24:32,806 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:24:32,807 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_compare_harness_negated.i [2025-02-06 05:24:32,849 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/53662ad44/1977792816694addb35d5ec296594579/FLAG2f508252c [2025-02-06 05:24:32,920 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/53662ad44/1977792816694addb35d5ec296594579 [2025-02-06 05:24:32,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:24:32,923 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:24:32,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:24:32,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:24:32,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:24:32,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:24:32" (1/1) ... [2025-02-06 05:24:32,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3443f6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:32, skipping insertion in model container [2025-02-06 05:24:32,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:24:32" (1/1) ... [2025-02-06 05:24:33,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:24:33,195 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_negated.i[4492,4505] [2025-02-06 05:24:33,206 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_negated.i[4552,4565] [2025-02-06 05:24:33,714 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:33,720 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:33,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:33,722 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:33,722 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:33,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:33,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:33,736 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:33,736 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:24:34,316 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:24:34,326 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_negated.i[4492,4505] [2025-02-06 05:24:34,326 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_negated.i[4552,4565] [2025-02-06 05:24:34,358 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,359 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,359 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,360 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,361 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,364 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,368 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2025-02-06 05:24:34,445 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,446 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:24:34,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2025-02-06 05:24:34,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:24:34,638 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:24:34,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34 WrapperNode [2025-02-06 05:24:34,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:24:34,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:24:34,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:24:34,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:24:34,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,779 INFO L138 Inliner]: procedures = 682, calls = 2786, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 823 [2025-02-06 05:24:34,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:24:34,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:24:34,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:24:34,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:24:34,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,846 INFO L175 MemorySlicer]: Split 529 memory accesses to 6 slices as follows [2, 257, 238, 5, 16, 11]. 49 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 5, 16, 0]. The 492 writes are split as follows [0, 257, 232, 0, 0, 3]. [2025-02-06 05:24:34,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,878 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:24:34,907 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:24:34,907 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:24:34,907 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:24:34,908 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (1/1) ... [2025-02-06 05:24:34,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:24:34,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:24:34,940 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) [2025-02-06 05:24:34,946 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 [2025-02-06 05:24:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-02-06 05:24:34,963 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-02-06 05:24:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2025-02-06 05:24:34,964 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2025-02-06 05:24:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:24:34,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-02-06 05:24:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:24:34,965 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:24:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:24:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:24:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:24:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:24:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:24:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:24:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:24:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:24:34,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:24:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:24:34,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:24:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-02-06 05:24:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:24:34,968 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:24:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:24:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:24:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:24:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:24:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:24:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:24:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 05:24:34,969 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 05:24:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:24:34,969 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:24:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:24:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:24:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:24:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:24:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:24:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:24:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:24:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:24:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:24:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:24:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:24:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:24:35,167 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:24:35,169 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:24:35,194 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2025-02-06 05:24:35,220 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-02-06 05:24:35,225 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:24:35,242 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:24:35,323 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2025-02-06 05:24:42,535 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2025-02-06 05:24:42,536 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:24:42,544 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:24:42,544 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:24:42,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:24:42 BoogieIcfgContainer [2025-02-06 05:24:42,545 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:24:42,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:24:42,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:24:42,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:24:42,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:24:32" (1/3) ... [2025-02-06 05:24:42,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5783a760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:24:42, skipping insertion in model container [2025-02-06 05:24:42,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:24:34" (2/3) ... [2025-02-06 05:24:42,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5783a760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:24:42, skipping insertion in model container [2025-02-06 05:24:42,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:24:42" (3/3) ... [2025-02-06 05:24:42,553 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness_negated.i [2025-02-06 05:24:42,564 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:24:42,567 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_string_compare_harness_negated.i that has 11 procedures, 121 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 05:24:42,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:24:42,622 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;@4765fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:24:42,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:24:42,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 77 states have internal predecessors, (97), 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) [2025-02-06 05:24:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 05:24:42,632 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:24:42,633 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, 1] [2025-02-06 05:24:42,633 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:24:42,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:24:42,637 INFO L85 PathProgramCache]: Analyzing trace with hash -928018743, now seen corresponding path program 1 times [2025-02-06 05:24:42,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:24:42,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444212739] [2025-02-06 05:24:42,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:24:42,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:25:49,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 05:25:49,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 05:25:49,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:25:49,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:25:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-06 05:25:50,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:25:50,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444212739] [2025-02-06 05:25:50,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444212739] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:25:50,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421678441] [2025-02-06 05:25:50,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:25:50,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:25:50,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:25:50,371 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) [2025-02-06 05:25:50,373 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