./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 023d838f 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-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 11:00:29,110 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 11:00:29,183 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 11:00:29,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 11:00:29,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 11:00:29,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 11:00:29,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 11:00:29,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 11:00:29,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 11:00:29,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 11:00:29,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 11:00:29,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 11:00:29,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 11:00:29,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 11:00:29,218 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 11:00:29,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 11:00:29,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 11:00:29,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 11:00:29,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 11:00:29,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 11:00:29,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 11:00:29,221 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 11:00:29,222 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 11:00:29,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 11:00:29,222 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 11:00:29,223 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 11:00:29,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 11:00:29,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 11:00:29,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 11:00:29,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 11:00:29,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 11:00:29,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 11:00:29,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 11:00:29,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 11:00:29,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 11:00:29,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 11:00:29,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 11:00:29,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 11:00:29,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 11:00:29,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 [2024-11-10 11:00:29,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 11:00:29,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 11:00:29,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 11:00:29,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 11:00:29,540 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 11:00:29,541 INFO L431 ainManager$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 [2024-11-10 11:00:31,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 11:00:31,541 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 11:00:31,541 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2024-11-10 11:00:31,586 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eaf3cd32/e73c2e13eaad413d81612dc55873f827/FLAGe574e30cd [2024-11-10 11:00:31,603 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eaf3cd32/e73c2e13eaad413d81612dc55873f827 [2024-11-10 11:00:31,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 11:00:31,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 11:00:31,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 11:00:31,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 11:00:31,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 11:00:31,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:00:31" (1/1) ... [2024-11-10 11:00:31,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7b2196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:31, skipping insertion in model container [2024-11-10 11:00:31,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:00:31" (1/1) ... [2024-11-10 11:00:31,804 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 11:00:32,188 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] [2024-11-10 11:00:32,198 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] [2024-11-10 11:00:33,490 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:33,491 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:33,491 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:33,491 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:33,494 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:33,507 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:33,507 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:33,509 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:33,509 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,272 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,273 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,733 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,734 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,755 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,757 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,765 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,765 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,785 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,786 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,787 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,787 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,787 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,788 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,788 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 11:00:34,878 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 11:00:34,894 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] [2024-11-10 11:00:34,895 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] [2024-11-10 11:00:34,953 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,956 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,957 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,957 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,957 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,964 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,965 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,966 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:34,966 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8223] [2024-11-10 11:00:35,081 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,082 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,158 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,158 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,165 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,166 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,225 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,229 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,239 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,240 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,241 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,241 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,241 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,242 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,242 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 11:00:35,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 11:00:35,511 INFO L204 MainTranslator]: Completed translation [2024-11-10 11:00:35,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35 WrapperNode [2024-11-10 11:00:35,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 11:00:35,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 11:00:35,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 11:00:35,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 11:00:35,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,726 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 402 [2024-11-10 11:00:35,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 11:00:35,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 11:00:35,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 11:00:35,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 11:00:35,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,752 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,786 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 257, 13, 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, 257, 3, 0]. [2024-11-10 11:00:35,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,817 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 11:00:35,846 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 11:00:35,846 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 11:00:35,846 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 11:00:35,848 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (1/1) ... [2024-11-10 11:00:35,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 11:00:35,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 11:00:35,884 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) [2024-11-10 11:00:35,890 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 [2024-11-10 11:00:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-10 11:00:35,933 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-10 11:00:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-10 11:00:35,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-10 11:00:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 11:00:35,934 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 11:00:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 11:00:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 11:00:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 11:00:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 11:00:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 11:00:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 11:00:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 11:00:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 11:00:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 11:00:35,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 11:00:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 11:00:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 11:00:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 11:00:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 11:00:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 11:00:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 11:00:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 11:00:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 11:00:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 11:00:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 11:00:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 11:00:35,939 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 11:00:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-10 11:00:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-10 11:00:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 11:00:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 11:00:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 11:00:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 11:00:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 11:00:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 11:00:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-10 11:00:35,941 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-10 11:00:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 11:00:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 11:00:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 11:00:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 11:00:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2024-11-10 11:00:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2024-11-10 11:00:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 11:00:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 11:00:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 11:00:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 11:00:36,299 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 11:00:36,301 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 11:00:36,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6887: havoc #t~malloc562.base, #t~malloc562.offset; [2024-11-10 11:00:36,358 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 11:00:36,394 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6245: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2024-11-10 11:00:36,398 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-10 11:00:36,436 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6804: havoc #t~ret548#1.base, #t~ret548#1.offset; [2024-11-10 11:00:36,457 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7673: havoc #t~nondet820; [2024-11-10 11:00:42,878 INFO L1247 $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; [2024-11-10 11:00:42,881 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10776-1: assume true; [2024-11-10 11:00:42,881 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10776-1: assume !true; [2024-11-10 11:00:42,998 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-10 11:00:42,998 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 11:00:43,014 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 11:00:43,015 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 11:00:43,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:00:43 BoogieIcfgContainer [2024-11-10 11:00:43,015 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 11:00:43,019 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 11:00:43,019 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 11:00:43,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 11:00:43,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:00:31" (1/3) ... [2024-11-10 11:00:43,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d7fd196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:00:43, skipping insertion in model container [2024-11-10 11:00:43,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:00:35" (2/3) ... [2024-11-10 11:00:43,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d7fd196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:00:43, skipping insertion in model container [2024-11-10 11:00:43,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:00:43" (3/3) ... [2024-11-10 11:00:43,028 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness_negated.i [2024-11-10 11:00:43,044 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 11:00:43,045 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 11:00:43,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 11:00:43,130 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;@5aa195ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 11:00:43,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 11:00:43,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 73 states have internal predecessors, (89), 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) [2024-11-10 11:00:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 11:00:43,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 11:00:43,154 INFO L215 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] [2024-11-10 11:00:43,155 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 11:00:43,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 11:00:43,161 INFO L85 PathProgramCache]: Analyzing trace with hash 496683778, now seen corresponding path program 1 times [2024-11-10 11:00:43,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 11:00:43,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631318618] [2024-11-10 11:00:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 11:00:43,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 11:01:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 11:01:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 11:01:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 11:01:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 11:01:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 11:01:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-10 11:01:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 11:01:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 11:01:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 11:01:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 11:01:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-10 11:01:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 11:01:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 11:01:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 11:01:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-10 11:01:34,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 11:01:34,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631318618] [2024-11-10 11:01:34,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631318618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 11:01:34,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 11:01:34,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 11:01:34,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713612358] [2024-11-10 11:01:34,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 11:01:34,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 11:01:34,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 11:01:34,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 11:01:34,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 11:01:34,465 INFO L87 Difference]: Start difference. First operand has 112 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 73 states have internal predecessors, (89), 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) [2024-11-10 11:01:38,573 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 [] [2024-11-10 11:01:42,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 11:01:44,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 11:01:44,912 INFO L93 Difference]: Finished difference Result 220 states and 302 transitions. [2024-11-10 11:01:44,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 11:01:44,915 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 [2024-11-10 11:01:44,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 11:01:44,926 INFO L225 Difference]: With dead ends: 220 [2024-11-10 11:01:44,926 INFO L226 Difference]: Without dead ends: 105 [2024-11-10 11:01:44,931 INFO L431 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 [2024-11-10 11:01:44,937 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 36 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 25 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 197 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 [2024-11-10 11:01:44,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 197 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-10 11:01:44,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-10 11:01:44,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-10 11:01:44,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 67 states have internal predecessors, (78), 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) [2024-11-10 11:01:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 133 transitions. [2024-11-10 11:01:45,000 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 133 transitions. Word has length 93 [2024-11-10 11:01:45,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 11:01:45,004 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 133 transitions. [2024-11-10 11:01:45,004 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) [2024-11-10 11:01:45,005 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2024-11-10 11:01:45,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-10 11:01:45,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 11:01:45,010 INFO L215 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, 1] [2024-11-10 11:01:45,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 11:01:45,011 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 11:01:45,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 11:01:45,012 INFO L85 PathProgramCache]: Analyzing trace with hash 721091456, now seen corresponding path program 1 times [2024-11-10 11:01:45,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 11:01:45,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651362297] [2024-11-10 11:01:45,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 11:01:45,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms