./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_callback_string_eq_harness_negated.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 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:10:56,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:10:56,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:10:56,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:10:56,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:10:56,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:10:56,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:10:56,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:10:56,554 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:10:56,554 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:10:56,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:10:56,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:10:56,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:10:56,555 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:10:56,555 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:10:56,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:10:56,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:10:56,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:10:56,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:10:56,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:10:56,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:10:56,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:10:56,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:10:56,557 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:10:56,557 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:10:56,557 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:10:56,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:10:56,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:10:56,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:10:56,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:10:56,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:10:56,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:10:56,558 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:10:56,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:10:56,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:10:56,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:10:56,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:10:56,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:10:56,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:10:56,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:10:56,559 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 -> 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 [2025-03-17 07:10:56,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:10:56,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:10:56,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:10:56,790 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:10:56,790 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:10:56,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2025-03-17 07:10:57,982 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94404dd2/4fb6c739220c4ffb91bebde900c02757/FLAGfe372c452 [2025-03-17 07:10:58,589 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:10:58,590 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2025-03-17 07:10:58,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94404dd2/4fb6c739220c4ffb91bebde900c02757/FLAGfe372c452 [2025-03-17 07:10:59,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94404dd2/4fb6c739220c4ffb91bebde900c02757 [2025-03-17 07:10:59,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:10:59,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:10:59,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:10:59,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:10:59,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:10:59,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:10:59" (1/1) ... [2025-03-17 07:10:59,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33db17b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:10:59, skipping insertion in model container [2025-03-17 07:10:59,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:10:59" (1/1) ... [2025-03-17 07:10:59,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:10:59,392 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_callback_string_eq_harness_negated.i[4501,4514] [2025-03-17 07:10:59,400 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_callback_string_eq_harness_negated.i[4561,4574] [2025-03-17 07:11:00,956 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:00,957 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:00,957 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:00,958 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:00,958 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:00,968 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:00,969 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:00,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:00,970 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:01,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:01,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,225 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,226 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,271 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,272 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,291 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,292 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:11:02,425 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:11:02,438 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_callback_string_eq_harness_negated.i[4501,4514] [2025-03-17 07:11:02,439 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_callback_string_eq_harness_negated.i[4561,4574] [2025-03-17 07:11:02,472 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,472 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,472 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,473 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,473 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,480 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,481 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,481 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,482 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8223] [2025-03-17 07:11:02,564 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,564 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,644 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,644 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,646 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,654 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:02,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:11:02,877 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:11:02,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02 WrapperNode [2025-03-17 07:11:02,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:11:02,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:11:02,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:11:02,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:11:02,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:02,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,003 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 402 [2025-03-17 07:11:03,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:11:03,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:11:03,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:11:03,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:11:03,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,051 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 257, 5, 13]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0]. The 260 writes are split as follows [0, 257, 0, 3]. [2025-03-17 07:11:03,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,075 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:11:03,092 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:11:03,093 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:11:03,093 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:11:03,093 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (1/1) ... [2025-03-17 07:11:03,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:11:03,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:03,129 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) [2025-03-17 07:11:03,131 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 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-17 07:11:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:11:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:11:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:11:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:11:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:11:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:11:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:11:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2025-03-17 07:11:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:11:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:11:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2025-03-17 07:11:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:11:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:11:03,419 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:11:03,420 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:11:03,466 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6887: havoc #t~malloc562.base, #t~malloc562.offset; [2025-03-17 07:11:03,473 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:11:03,498 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6245: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2025-03-17 07:11:03,501 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:11:03,528 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6804: havoc #t~ret548#1.base, #t~ret548#1.offset; [2025-03-17 07:11:03,544 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L7673: havoc #t~nondet820; [2025-03-17 07:11:09,269 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L11040: havoc aws_string_eq_#t~mem2108#1;havoc aws_string_eq_#t~mem2109#1;havoc aws_string_eq_#t~ret2110#1; [2025-03-17 07:11:09,269 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L10776-1: assume false; [2025-03-17 07:11:09,269 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L10776-1: assume !false; [2025-03-17 07:11:09,336 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2025-03-17 07:11:09,337 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:11:09,344 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:11:09,347 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:11:09,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:11:09 BoogieIcfgContainer [2025-03-17 07:11:09,348 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:11:09,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:11:09,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:11:09,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:11:09,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:10:59" (1/3) ... [2025-03-17 07:11:09,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530b978b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:11:09, skipping insertion in model container [2025-03-17 07:11:09,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:02" (2/3) ... [2025-03-17 07:11:09,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530b978b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:11:09, skipping insertion in model container [2025-03-17 07:11:09,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:11:09" (3/3) ... [2025-03-17 07:11:09,356 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness_negated.i [2025-03-17 07:11:09,367 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:11:09,369 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_callback_string_eq_harness_negated.i that has 11 procedures, 107 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 07:11:09,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:11:09,421 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;@21a374a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:11:09,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:11:09,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 68 states have internal predecessors, (84), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-17 07:11:09,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-17 07:11:09,433 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:09,434 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:11:09,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:09,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:09,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1307610301, now seen corresponding path program 1 times [2025-03-17 07:11:09,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:09,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221779792] [2025-03-17 07:11:09,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:09,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:11:54,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-17 07:11:55,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-17 07:11:55,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:55,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 07:11:55,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:11:55,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221779792] [2025-03-17 07:11:55,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221779792] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:11:55,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864253478] [2025-03-17 07:11:55,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:55,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:11:55,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:55,611 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) [2025-03-17 07:11:55,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 07:12:40,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-17 07:12:40,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-17 07:12:40,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:40,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:40,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 3966 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 07:12:40,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:12:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 07:12:40,750 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:12:40,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864253478] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:40,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:12:40,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 07:12:40,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689663621] [2025-03-17 07:12:40,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:40,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 07:12:40,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:40,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 07:12:40,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:12:40,771 INFO L87 Difference]: Start difference. First operand has 107 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 68 states have internal predecessors, (84), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) [2025-03-17 07:12:40,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:40,788 INFO L93 Difference]: Finished difference Result 212 states and 294 transitions. [2025-03-17 07:12:40,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 07:12:40,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 91 [2025-03-17 07:12:40,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:40,795 INFO L225 Difference]: With dead ends: 212 [2025-03-17 07:12:40,795 INFO L226 Difference]: Without dead ends: 102 [2025-03-17 07:12:40,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:12:40,799 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 07:12:40,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 07:12:40,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2025-03-17 07:12:40,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2025-03-17 07:12:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-17 07:12:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 130 transitions. [2025-03-17 07:12:40,826 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 130 transitions. Word has length 91 [2025-03-17 07:12:40,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:40,827 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 130 transitions. [2025-03-17 07:12:40,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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) [2025-03-17 07:12:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 130 transitions. [2025-03-17 07:12:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-17 07:12:40,830 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:40,830 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:12:40,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 07:12:41,031 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 [2025-03-17 07:12:41,031 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:41,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:41,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1012123535, now seen corresponding path program 1 times [2025-03-17 07:12:41,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:41,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002736425] [2025-03-17 07:12:41,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:41,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms