./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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_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 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:53:04,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:53:04,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 08:53:04,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:53:04,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:53:04,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:53:04,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:53:04,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:53:04,749 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:53:04,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:53:04,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:53:04,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:53:04,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:53:04,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:53:04,755 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:53:04,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:53:04,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:53:04,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:53:04,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:53:04,757 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:53:04,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:53:04,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:53:04,759 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:53:04,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:53:04,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:53:04,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:53:04,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:53:04,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:53:04,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:53:04,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:53:04,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:53:04,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:53:04,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:53:04,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:53:04,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:53:04,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:53:04,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:53:04,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:53:04,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:53:04,764 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 [2024-11-12 08:53:05,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:53:05,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:53:05,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:53:05,075 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:53:05,076 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:53:05,077 INFO L431 ainManager$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 [2024-11-12 08:53:06,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:53:07,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:53:07,117 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2024-11-12 08:53:07,172 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f301450e/9090c5d151d04a8989536b2f2242ee28/FLAGa7339928a [2024-11-12 08:53:07,184 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f301450e/9090c5d151d04a8989536b2f2242ee28 [2024-11-12 08:53:07,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:53:07,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:53:07,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:53:07,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:53:07,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:53:07,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:53:07" (1/1) ... [2024-11-12 08:53:07,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c936e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:07, skipping insertion in model container [2024-11-12 08:53:07,199 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:53:07" (1/1) ... [2024-11-12 08:53:07,314 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:53:07,716 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] [2024-11-12 08:53:07,727 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] [2024-11-12 08:53:08,641 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:08,643 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:08,644 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:08,644 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:08,645 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:08,665 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:08,666 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:08,668 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:08,668 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,358 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,359 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,623 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,624 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,643 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,644 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,652 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,652 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,665 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,667 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,668 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,668 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,668 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,669 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,669 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:53:09,765 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:53:09,780 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] [2024-11-12 08:53:09,785 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] [2024-11-12 08:53:09,826 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,826 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,827 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,827 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,827 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,838 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,839 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,841 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,841 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8223] [2024-11-12 08:53:09,991 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:09,992 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,082 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,083 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,093 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,097 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,100 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,100 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,110 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,111 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,111 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,112 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,112 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,112 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,113 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:53:10,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:53:10,417 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:53:10,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10 WrapperNode [2024-11-12 08:53:10,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:53:10,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:53:10,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:53:10,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:53:10,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,639 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 403 [2024-11-12 08:53:10,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:53:10,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:53:10,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:53:10,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:53:10,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,659 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,708 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 13, 257, 5]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 0, 5]. The 260 writes are split as follows [0, 3, 257, 0]. [2024-11-12 08:53:10,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:53:10,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:53:10,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:53:10,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:53:10,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (1/1) ... [2024-11-12 08:53:10,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:53:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:53:10,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 08:53:10,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 08:53:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-12 08:53:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-12 08:53:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-12 08:53:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-12 08:53:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 08:53:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 08:53:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 08:53:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 08:53:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 08:53:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 08:53:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:53:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:53:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:53:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:53:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 08:53:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 08:53:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 08:53:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:53:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:53:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:53:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:53:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:53:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:53:10,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:53:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 08:53:10,866 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 08:53:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 08:53:10,866 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 08:53:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-12 08:53:10,866 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-12 08:53:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:53:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:53:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:53:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:53:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-12 08:53:10,867 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-12 08:53:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-12 08:53:10,868 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-12 08:53:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:53:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:53:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:53:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:53:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2024-11-12 08:53:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2024-11-12 08:53:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:53:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:53:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:53:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:53:11,205 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:53:11,208 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:53:18,228 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2024-11-12 08:53:18,334 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-12 08:53:18,334 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:53:18,350 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:53:18,351 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 08:53:18,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:53:18 BoogieIcfgContainer [2024-11-12 08:53:18,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:53:18,354 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:53:18,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:53:18,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:53:18,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:53:07" (1/3) ... [2024-11-12 08:53:18,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58cf1c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:53:18, skipping insertion in model container [2024-11-12 08:53:18,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:53:10" (2/3) ... [2024-11-12 08:53:18,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58cf1c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:53:18, skipping insertion in model container [2024-11-12 08:53:18,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:53:18" (3/3) ... [2024-11-12 08:53:18,363 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness_negated.i [2024-11-12 08:53:18,378 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:53:18,379 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:53:18,447 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:53:18,452 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;@672b592a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:53:18,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 08:53:18,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 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) [2024-11-12 08:53:18,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-12 08:53:18,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:53:18,467 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] [2024-11-12 08:53:18,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:53:18,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:53:18,475 INFO L85 PathProgramCache]: Analyzing trace with hash 436511225, now seen corresponding path program 1 times [2024-11-12 08:53:18,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:53:18,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412288736] [2024-11-12 08:53:18,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:53:18,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:54:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:06,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:54:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:06,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:54:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:06,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:54:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:54:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:54:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 08:54:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-12 08:54:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-12 08:54:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 08:54:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 08:54:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-12 08:54:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-12 08:54:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-12 08:54:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:54:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-12 08:54:07,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:54:07,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412288736] [2024-11-12 08:54:07,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412288736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:54:07,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:54:07,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 08:54:07,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355670816] [2024-11-12 08:54:07,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:54:07,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 08:54:07,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:54:07,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 08:54:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 08:54:07,165 INFO L87 Difference]: Start difference. First operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 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 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-12 08:54:11,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:54:15,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:54:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:54:17,622 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2024-11-12 08:54:17,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:54:17,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 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 93 [2024-11-12 08:54:17,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:54:17,634 INFO L225 Difference]: With dead ends: 217 [2024-11-12 08:54:17,634 INFO L226 Difference]: Without dead ends: 104 [2024-11-12 08:54:17,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 08:54:17,641 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 36 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 25 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-12 08:54:17,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 194 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-12 08:54:17,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-12 08:54:17,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-12 08:54:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 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) [2024-11-12 08:54:17,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-12 08:54:17,701 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2024-11-12 08:54:17,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:54:17,703 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-12 08:54:17,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-12 08:54:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-12 08:54:17,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-12 08:54:17,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:54:17,707 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, 1, 1] [2024-11-12 08:54:17,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:54:17,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:54:17,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:54:17,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1648273971, now seen corresponding path program 1 times [2024-11-12 08:54:17,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:54:17,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443532525] [2024-11-12 08:54:17,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:54:17,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms