./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_string_eq_c_str_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 14:25:47,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 14:25:47,136 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 14:25:47,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 14:25:47,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 14:25:47,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 14:25:47,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 14:25:47,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 14:25:47,164 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 14:25:47,165 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 14:25:47,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 14:25:47,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 14:25:47,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 14:25:47,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 14:25:47,167 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 14:25:47,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 14:25:47,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 14:25:47,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 14:25:47,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 14:25:47,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 14:25:47,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 14:25:47,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 14:25:47,172 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 14:25:47,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 14:25:47,172 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 14:25:47,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 14:25:47,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 14:25:47,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 14:25:47,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 14:25:47,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:25:47,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 14:25:47,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 14:25:47,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 14:25:47,174 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 14:25:47,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 14:25:47,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 14:25:47,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 14:25:47,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 14:25:47,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 14:25:47,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64b813c3d856efe8cd859d380d09d4b682c371a0a165a5a5fe0d11dc206dad7 [2024-11-22 14:25:47,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 14:25:47,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 14:25:47,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 14:25:47,439 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 14:25:47,439 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 14:25:47,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2024-11-22 14:25:48,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 14:25:48,996 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 14:25:48,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_eq_c_str_harness.i [2024-11-22 14:25:49,032 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38b0a364/ab39a7e0686a4dd4b964121b1dfe87a9/FLAG84d9940d5 [2024-11-22 14:25:49,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38b0a364/ab39a7e0686a4dd4b964121b1dfe87a9 [2024-11-22 14:25:49,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 14:25:49,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 14:25:49,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 14:25:49,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 14:25:49,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 14:25:49,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:25:49" (1/1) ... [2024-11-22 14:25:49,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4201188d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:49, skipping insertion in model container [2024-11-22 14:25:49,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:25:49" (1/1) ... [2024-11-22 14:25:49,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 14:25:49,561 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_string_eq_c_str_harness.i[4493,4506] [2024-11-22 14:25:49,568 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_string_eq_c_str_harness.i[4553,4566] [2024-11-22 14:25:50,034 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,035 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,036 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,036 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,037 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,055 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,055 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,056 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,056 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,447 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,448 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:25:50,517 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 14:25:50,531 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_string_eq_c_str_harness.i[4493,4506] [2024-11-22 14:25:50,532 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_string_eq_c_str_harness.i[4553,4566] [2024-11-22 14:25:50,564 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,564 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,564 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,565 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,565 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,570 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,571 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,572 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,572 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8588] [2024-11-22 14:25:50,736 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,736 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:25:50,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:25:50,920 INFO L204 MainTranslator]: Completed translation [2024-11-22 14:25:50,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50 WrapperNode [2024-11-22 14:25:50,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 14:25:50,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 14:25:50,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 14:25:50,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 14:25:50,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,051 INFO L138 Inliner]: procedures = 670, calls = 2270, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 396 [2024-11-22 14:25:51,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 14:25:51,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 14:25:51,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 14:25:51,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 14:25:51,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,098 INFO L175 MemorySlicer]: Split 279 memory accesses to 4 slices as follows [2, 257, 15, 5]. 92 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]. [2024-11-22 14:25:51,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 14:25:51,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 14:25:51,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 14:25:51,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 14:25:51,161 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (1/1) ... [2024-11-22 14:25:51,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:25:51,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:25:51,193 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) [2024-11-22 14:25:51,198 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 [2024-11-22 14:25:51,240 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-22 14:25:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-22 14:25:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-22 14:25:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-22 14:25:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-22 14:25:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-22 14:25:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-22 14:25:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-22 14:25:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 14:25:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 14:25:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 14:25:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 14:25:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 14:25:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 14:25:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 14:25:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 14:25:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 14:25:51,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 14:25:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 14:25:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 14:25:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 14:25:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 14:25:51,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 14:25:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 14:25:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 14:25:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 14:25:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-22 14:25:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-22 14:25:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 14:25:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 14:25:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 14:25:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 14:25:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 14:25:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 14:25:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-22 14:25:51,247 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-22 14:25:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-22 14:25:51,248 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-22 14:25:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 14:25:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 14:25:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 14:25:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 14:25:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 14:25:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 14:25:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 14:25:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 14:25:51,485 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 14:25:51,488 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 14:25:57,930 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-11-22 14:25:57,930 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 14:25:57,942 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 14:25:57,942 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 14:25:57,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:25:57 BoogieIcfgContainer [2024-11-22 14:25:57,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 14:25:57,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 14:25:57,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 14:25:57,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 14:25:57,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:25:49" (1/3) ... [2024-11-22 14:25:57,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4d756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:25:57, skipping insertion in model container [2024-11-22 14:25:57,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:25:50" (2/3) ... [2024-11-22 14:25:57,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4d756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:25:57, skipping insertion in model container [2024-11-22 14:25:57,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:25:57" (3/3) ... [2024-11-22 14:25:57,952 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_c_str_harness.i [2024-11-22 14:25:57,964 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 14:25:57,964 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 14:25:58,014 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 14:25:58,019 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;@3318375b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 14:25:58,020 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 14:25:58,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 14:25:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 14:25:58,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:25:58,034 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 14:25:58,035 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:25:58,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:25:58,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1307493695, now seen corresponding path program 1 times [2024-11-22 14:25:58,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:25:58,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919439377] [2024-11-22 14:25:58,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:25:58,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:26:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:26:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 14:26:45,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:26:45,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919439377] [2024-11-22 14:26:45,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919439377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:26:45,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 14:26:45,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 14:26:45,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878989881] [2024-11-22 14:26:45,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:26:45,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 14:26:45,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:26:45,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 14:26:45,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:26:45,732 INFO L87 Difference]: Start difference. First operand has 107 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 71 states have internal predecessors, (87), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 14:26:45,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:26:45,763 INFO L93 Difference]: Finished difference Result 205 states and 281 transitions. [2024-11-22 14:26:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 14:26:45,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-11-22 14:26:45,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:26:45,773 INFO L225 Difference]: With dead ends: 205 [2024-11-22 14:26:45,773 INFO L226 Difference]: Without dead ends: 101 [2024-11-22 14:26:45,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:26:45,781 INFO L432 NwaCegarLoop]: 136 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, 136 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 [2024-11-22 14:26:45,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:26:45,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-22 14:26:45,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-22 14:26:45,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-22 14:26:45,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 128 transitions. [2024-11-22 14:26:45,823 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 128 transitions. Word has length 36 [2024-11-22 14:26:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:26:45,825 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 128 transitions. [2024-11-22 14:26:45,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 14:26:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 128 transitions. [2024-11-22 14:26:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 14:26:45,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:26:45,828 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 14:26:45,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 14:26:45,829 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:26:45,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:26:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1298529859, now seen corresponding path program 1 times [2024-11-22 14:26:45,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:26:45,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915389546] [2024-11-22 14:26:45,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:26:45,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:27:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat