./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_hash_string_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 a3ce1d43d9985905fc5bc027d31321425feb97f8a5ea33de69c9c87c25abb975 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:53:54,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:53:54,140 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:53:54,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:53:54,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:53:54,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:53:54,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:53:54,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:53:54,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:53:54,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:53:54,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:53:54,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:53:54,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:53:54,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:53:54,172 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:53:54,172 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:53:54,172 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:53:54,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:53:54,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:53:54,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:53:54,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:53:54,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:53:54,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:53:54,173 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:53:54,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:53:54,174 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:53:54,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:53:54,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:53:54,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:53:54,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:53:54,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:53:54,174 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/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 -> a3ce1d43d9985905fc5bc027d31321425feb97f8a5ea33de69c9c87c25abb975 [2025-03-04 02:53:54,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:53:54,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:53:54,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:53:54,398 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:53:54,398 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:53:54,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-03-04 02:53:55,534 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d09ea2d/2b7ba528f67d4beda8942387f923f9dc/FLAGb2e32de51 [2025-03-04 02:53:55,986 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:53:55,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-03-04 02:53:56,014 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d09ea2d/2b7ba528f67d4beda8942387f923f9dc/FLAGb2e32de51 [2025-03-04 02:53:56,107 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d09ea2d/2b7ba528f67d4beda8942387f923f9dc [2025-03-04 02:53:56,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:53:56,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:53:56,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:53:56,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:53:56,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:53:56,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:53:56" (1/1) ... [2025-03-04 02:53:56,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1837d07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:56, skipping insertion in model container [2025-03-04 02:53:56,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:53:56" (1/1) ... [2025-03-04 02:53:56,189 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:53:56,494 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_hash_string_harness.i[4489,4502] [2025-03-04 02:53:56,505 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_hash_string_harness.i[4549,4562] [2025-03-04 02:53:57,483 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,484 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,484 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,484 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,495 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,496 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,497 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,498 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,500 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,500 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:57,501 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,327 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,348 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,349 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,354 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,355 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,368 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,370 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,370 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,396 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_hash_string_harness.i[230833,230846] [2025-03-04 02:53:58,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:53:58,422 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:53:58,431 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_hash_string_harness.i[4489,4502] [2025-03-04 02:53:58,437 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_hash_string_harness.i[4549,4562] [2025-03-04 02:53:58,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,473 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,473 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,474 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,474 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,474 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,474 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,475 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,475 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-04 02:53:58,651 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,651 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,658 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,658 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,663 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,663 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,665 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:53:58,681 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_hash_string_harness.i[230833,230846] [2025-03-04 02:53:58,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:53:58,816 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:53:58,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58 WrapperNode [2025-03-04 02:53:58,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:53:58,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:53:58,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:53:58,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:53:58,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:58,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:58,955 INFO L138 Inliner]: procedures = 763, calls = 2477, calls flagged for inlining = 68, calls inlined = 5, statements flattened = 533 [2025-03-04 02:53:58,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:53:58,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:53:58,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:53:58,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:53:58,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:58,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:58,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:59,031 INFO L175 MemorySlicer]: Split 353 memory accesses to 7 slices as follows [2, 238, 7, 5, 7, 91, 3]. 67 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 6, 1, 5, 1, 0, 0]. The 244 writes are split as follows [0, 232, 4, 0, 4, 3, 1]. [2025-03-04 02:53:59,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:59,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:59,057 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:59,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:59,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:59,077 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:59,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:53:59,095 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:53:59,095 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:53:59,095 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:53:59,096 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (1/1) ... [2025-03-04 02:53:59,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:53:59,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:53:59,127 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) [2025-03-04 02:53:59,130 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 [2025-03-04 02:53:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-04 02:53:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-04 02:53:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-04 02:53:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-04 02:53:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:53:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:53:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:53:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:53:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:53:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:53:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:53:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:53:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:53:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:53:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:53:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:53:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:53:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:53:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:53:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:53:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:53:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:53:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:53:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:53:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:53:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:53:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:53:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:53:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:53:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:53:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:53:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:53:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-04 02:53:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-04 02:53:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:53:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:53:59,152 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2025-03-04 02:53:59,152 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2025-03-04 02:53:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:53:59,153 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:53:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:53:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:53:59,437 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:53:59,439 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:53:59,468 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-04 02:53:59,501 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: havoc #t~mem498;havoc #t~short499;havoc #t~mem500;havoc #t~mem501;havoc #t~short502; [2025-03-04 02:53:59,502 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:53:59,518 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:53:59,586 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6864: havoc #t~ret574#1.base, #t~ret574#1.offset; [2025-03-04 02:54:05,409 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-2: havoc aws_hash_string_#t~mem1477#1;havoc aws_hash_string_#t~mem1478#1;havoc aws_hash_string_#t~bitwise1479#1; [2025-03-04 02:54:05,410 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-1: assume false; [2025-03-04 02:54:05,410 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-1: assume !false; [2025-03-04 02:54:05,465 INFO L? ?]: Removed 381 outVars from TransFormulas that were not future-live. [2025-03-04 02:54:05,465 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:54:05,514 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:54:05,515 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:54:05,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:54:05 BoogieIcfgContainer [2025-03-04 02:54:05,515 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:54:05,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:54:05,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:54:05,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:54:05,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:53:56" (1/3) ... [2025-03-04 02:54:05,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdb75ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:54:05, skipping insertion in model container [2025-03-04 02:54:05,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:53:58" (2/3) ... [2025-03-04 02:54:05,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdb75ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:54:05, skipping insertion in model container [2025-03-04 02:54:05,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:54:05" (3/3) ... [2025-03-04 02:54:05,525 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2025-03-04 02:54:05,537 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:54:05,539 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_string_harness.i that has 11 procedures, 351 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-04 02:54:05,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:54:05,603 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;@44499d8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:54:05,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:54:05,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 351 states, 325 states have (on average 1.5507692307692307) internal successors, (504), 325 states have internal predecessors, (504), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-04 02:54:05,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-04 02:54:05,619 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:54:05,620 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:54:05,620 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:54:05,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:54:05,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2101972367, now seen corresponding path program 1 times [2025-03-04 02:54:05,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:54:05,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539327426] [2025-03-04 02:54:05,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:05,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:54:10,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 02:54:11,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 02:54:11,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:11,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-04 02:54:11,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:54:11,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539327426] [2025-03-04 02:54:11,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539327426] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:54:11,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623046439] [2025-03-04 02:54:11,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:11,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:54:11,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:54:11,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:54:11,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:54:16,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 02:54:17,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 02:54:17,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:17,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:17,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 4200 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:54:17,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:54:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-04 02:54:17,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:54:17,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623046439] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:54:17,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:54:17,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:54:17,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450262430] [2025-03-04 02:54:17,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:54:17,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:54:17,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:54:17,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:54:17,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:54:17,553 INFO L87 Difference]: Start difference. First operand has 351 states, 325 states have (on average 1.5507692307692307) internal successors, (504), 325 states have internal predecessors, (504), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-04 02:54:18,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:54:18,104 INFO L93 Difference]: Finished difference Result 691 states and 1063 transitions. [2025-03-04 02:54:18,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:54:18,106 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2025-03-04 02:54:18,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:54:18,115 INFO L225 Difference]: With dead ends: 691 [2025-03-04 02:54:18,115 INFO L226 Difference]: Without dead ends: 338 [2025-03-04 02:54:18,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:54:18,125 INFO L435 NwaCegarLoop]: 479 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 02:54:18,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 02:54:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2025-03-04 02:54:18,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2025-03-04 02:54:18,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 313 states have (on average 1.5559105431309903) internal successors, (487), 313 states have internal predecessors, (487), 15 states have call successors, (15), 10 states have call predecessors, (15), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 02:54:18,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 516 transitions. [2025-03-04 02:54:18,174 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 516 transitions. Word has length 102 [2025-03-04 02:54:18,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:54:18,175 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 516 transitions. [2025-03-04 02:54:18,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-04 02:54:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 516 transitions. [2025-03-04 02:54:18,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-04 02:54:18,180 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:54:18,180 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:54:18,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 02:54:18,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 02:54:18,381 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:54:18,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:54:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1128543183, now seen corresponding path program 1 times [2025-03-04 02:54:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:54:18,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775752015] [2025-03-04 02:54:18,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:18,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:54:22,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 02:54:25,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 02:54:25,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:25,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-04 02:54:47,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:54:47,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775752015] [2025-03-04 02:54:47,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775752015] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:54:47,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698387678] [2025-03-04 02:54:47,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:47,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:54:47,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:54:47,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:54:47,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:54:51,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 02:54:52,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 02:54:52,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:52,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:52,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 4200 conjuncts, 121 conjuncts are in the unsatisfiable core [2025-03-04 02:54:52,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:54:52,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 43 [2025-03-04 02:54:52,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2025-03-04 02:54:52,657 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2025-03-04 02:54:52,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 16 [2025-03-04 02:54:52,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 02:54:52,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16