./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_nospec_mask_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_nospec_mask_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 6f493f36268ddddf1b95c73a1ef895545bd56827101b5cfb094b1b471fbade36 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:54:37,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:54:37,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:54:37,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:54:37,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:54:37,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:54:37,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:54:37,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:54:37,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:54:37,229 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:54:37,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:54:37,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:54:37,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:54:37,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:54:37,229 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:54:37,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:54:37,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:54:37,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:54:37,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:54:37,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:54:37,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:54:37,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:54:37,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:54:37,230 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:54:37,230 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:54:37,230 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:54:37,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:54:37,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:54:37,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:54:37,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:54:37,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:54:37,232 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> 6f493f36268ddddf1b95c73a1ef895545bd56827101b5cfb094b1b471fbade36 [2025-02-08 01:54:37,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:54:37,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:54:37,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:54:37,450 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:54:37,450 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:54:37,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_nospec_mask_harness.i [2025-02-08 01:54:38,632 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bc5953b9f/4cf4020174f2440c8ced8155e77e1f15/FLAG99250da7f [2025-02-08 01:54:39,112 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:54:39,112 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_nospec_mask_harness.i [2025-02-08 01:54:39,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bc5953b9f/4cf4020174f2440c8ced8155e77e1f15/FLAG99250da7f [2025-02-08 01:54:39,153 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bc5953b9f/4cf4020174f2440c8ced8155e77e1f15 [2025-02-08 01:54:39,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:54:39,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:54:39,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:54:39,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:54:39,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:54:39,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:54:39" (1/1) ... [2025-02-08 01:54:39,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701115b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:39, skipping insertion in model container [2025-02-08 01:54:39,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:54:39" (1/1) ... [2025-02-08 01:54:39,213 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:54:39,361 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_nospec_mask_harness.i[4489,4502] [2025-02-08 01:54:39,366 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_nospec_mask_harness.i[4549,4562] [2025-02-08 01:54:39,756 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:39,757 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:39,757 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:39,758 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:39,758 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:39,766 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:39,767 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:39,768 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:39,768 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,158 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,158 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,192 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,192 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:54:40,256 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:54:40,263 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_nospec_mask_harness.i[4489,4502] [2025-02-08 01:54:40,264 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_nospec_mask_harness.i[4549,4562] [2025-02-08 01:54:40,286 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,286 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,286 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,286 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,287 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,295 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,295 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,296 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,296 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8051] [2025-02-08 01:54:40,363 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,363 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8537-8548] [2025-02-08 01:54:40,378 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,378 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,378 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,378 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,379 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:54:40,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:54:40,508 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:54:40,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40 WrapperNode [2025-02-08 01:54:40,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:54:40,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:54:40,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:54:40,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:54:40,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,590 INFO L138 Inliner]: procedures = 679, calls = 2482, calls flagged for inlining = 52, calls inlined = 3, statements flattened = 727 [2025-02-08 01:54:40,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:54:40,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:54:40,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:54:40,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:54:40,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,600 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,644 INFO L175 MemorySlicer]: Split 502 memory accesses to 4 slices as follows [2, 257, 238, 5]. 51 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 0, 6, 5]. The 489 writes are split as follows [0, 257, 232, 0]. [2025-02-08 01:54:40,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,680 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:54:40,701 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:54:40,701 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:54:40,701 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:54:40,701 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (1/1) ... [2025-02-08 01:54:40,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:54:40,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:54:40,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:54:40,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure aws_nospec_mask [2025-02-08 01:54:40,756 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_nospec_mask [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:54:40,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:54:40,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:54:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:54:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:54:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:54:40,935 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:54:40,936 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:54:47,699 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-02-08 01:54:47,699 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:54:47,713 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:54:47,714 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:54:47,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:54:47 BoogieIcfgContainer [2025-02-08 01:54:47,715 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:54:47,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:54:47,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:54:47,721 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:54:47,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:54:39" (1/3) ... [2025-02-08 01:54:47,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2412f92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:54:47, skipping insertion in model container [2025-02-08 01:54:47,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:54:40" (2/3) ... [2025-02-08 01:54:47,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2412f92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:54:47, skipping insertion in model container [2025-02-08 01:54:47,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:54:47" (3/3) ... [2025-02-08 01:54:47,723 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_nospec_mask_harness.i [2025-02-08 01:54:47,734 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:54:47,736 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_nospec_mask_harness.i that has 3 procedures, 27 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:54:47,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:54:47,787 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;@56874c9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:54:47,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:54:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 21 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 01:54:47,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 01:54:47,795 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:54:47,795 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:54:47,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:54:47,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:54:47,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1883879344, now seen corresponding path program 1 times [2025-02-08 01:54:47,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:54:47,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348406186] [2025-02-08 01:54:47,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:54:47,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:55:55,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 01:55:57,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 01:55:57,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:55:57,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:56:05,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:56:05,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:56:05,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348406186] [2025-02-08 01:56:05,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348406186] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:56:05,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:56:05,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-08 01:56:05,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127449695] [2025-02-08 01:56:05,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:56:05,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 01:56:05,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:56:05,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 01:56:05,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-08 01:56:05,433 INFO L87 Difference]: Start difference. First operand has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 21 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 01:56:09,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:56:12,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:56:12,003 INFO L93 Difference]: Finished difference Result 54 states and 73 transitions. [2025-02-08 01:56:12,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:56:12,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-02-08 01:56:12,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:56:12,009 INFO L225 Difference]: With dead ends: 54 [2025-02-08 01:56:12,009 INFO L226 Difference]: Without dead ends: 35 [2025-02-08 01:56:12,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-08 01:56:12,013 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2025-02-08 01:56:12,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 134 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2025-02-08 01:56:12,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-02-08 01:56:12,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2025-02-08 01:56:12,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 25 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 01:56:12,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2025-02-08 01:56:12,037 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 15 [2025-02-08 01:56:12,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:56:12,037 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2025-02-08 01:56:12,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 01:56:12,037 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2025-02-08 01:56:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 01:56:12,038 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:56:12,038 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:56:12,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:56:12,038 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:56:12,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:56:12,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1884922029, now seen corresponding path program 1 times [2025-02-08 01:56:12,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:56:12,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225513031] [2025-02-08 01:56:12,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:56:12,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms