./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_string_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 a3ce1d43d9985905fc5bc027d31321425feb97f8a5ea33de69c9c87c25abb975 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:05:07,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:05:07,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:05:07,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:05:07,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:05:07,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:05:07,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:05:07,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:05:07,818 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:05:07,819 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:05:07,819 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:05:07,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:05:07,820 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:05:07,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:05:07,820 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:05:07,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:05:07,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:05:07,820 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:05:07,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:05:07,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:05:07,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:05:07,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:05:07,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:05:07,821 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:05:07,821 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:05:07,821 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:05:07,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:05:07,821 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:05:07,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:05:07,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:05:07,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:05:07,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:05:07,822 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:05:07,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:05:07,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:05:07,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:05:07,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:05:07,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:05:07,823 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:05:07,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:05:07,823 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3ce1d43d9985905fc5bc027d31321425feb97f8a5ea33de69c9c87c25abb975 [2025-03-08 18:05:08,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:05:08,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:05:08,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:05:08,096 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:05:08,096 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:05:08,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-03-08 18:05:09,292 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a4b582c7/928c0fe46f674d458afa1c759b1b5cda/FLAGbc4f3e204 [2025-03-08 18:05:09,856 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:05:09,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-03-08 18:05:09,904 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a4b582c7/928c0fe46f674d458afa1c759b1b5cda/FLAGbc4f3e204 [2025-03-08 18:05:09,920 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a4b582c7/928c0fe46f674d458afa1c759b1b5cda [2025-03-08 18:05:09,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:05:09,923 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:05:09,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:05:09,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:05:09,931 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:05:09,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:05:09" (1/1) ... [2025-03-08 18:05:09,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4ab8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:09, skipping insertion in model container [2025-03-08 18:05:09,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:05:09" (1/1) ... [2025-03-08 18:05:10,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:05:10,259 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_string_harness.i[4489,4502] [2025-03-08 18:05:10,267 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_string_harness.i[4549,4562] [2025-03-08 18:05:11,165 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,166 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,166 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,167 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,167 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,179 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,180 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:11,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,209 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,210 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,238 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,262 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,300 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_string_harness.i[230833,230846] [2025-03-08 18:05:12,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:05:12,330 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:05:12,341 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_string_harness.i[4489,4502] [2025-03-08 18:05:12,346 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_string_harness.i[4549,4562] [2025-03-08 18:05:12,377 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,378 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,378 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,378 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,379 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-08 18:05:12,574 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,575 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,583 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,583 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,585 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,586 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,591 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,593 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,594 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,595 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:05:12,610 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_string_harness.i[230833,230846] [2025-03-08 18:05:12,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:05:12,801 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:05:12,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12 WrapperNode [2025-03-08 18:05:12,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:05:12,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:05:12,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:05:12,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:05:12,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:12,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:12,968 INFO L138 Inliner]: procedures = 763, calls = 2477, calls flagged for inlining = 68, calls inlined = 5, statements flattened = 533 [2025-03-08 18:05:12,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:05:12,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:05:12,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:05:12,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:05:12,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:12,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:12,986 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:13,061 INFO L175 MemorySlicer]: Split 353 memory accesses to 7 slices as follows [2, 238, 91, 3, 5, 7, 7]. 67 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 6, 0, 0, 5, 1, 1]. The 244 writes are split as follows [0, 232, 3, 1, 0, 4, 4]. [2025-03-08 18:05:13,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:13,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:13,104 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:13,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:13,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:13,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:13,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:05:13,145 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:05:13,145 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:05:13,146 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:05:13,146 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (1/1) ... [2025-03-08 18:05:13,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:05:13,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:05:13,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 18:05:13,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-08 18:05:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-08 18:05:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:05:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:05:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:05:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:05:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:05:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-08 18:05:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:05:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:05:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:05:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:05:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:05:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 18:05:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:05:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2025-03-08 18:05:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:05:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:05:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:05:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:05:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:05:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 18:05:13,497 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:05:13,499 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:05:13,534 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-08 18:05:13,573 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: havoc #t~mem498;havoc #t~short499;havoc #t~mem500;havoc #t~mem501;havoc #t~short502; [2025-03-08 18:05:13,575 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:05:13,597 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:05:13,682 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6864: havoc #t~ret574#1.base, #t~ret574#1.offset; [2025-03-08 18:05:19,511 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-2: havoc aws_hash_string_#t~mem1477#1;havoc aws_hash_string_#t~mem1478#1;havoc aws_hash_string_#t~bitwise1479#1; [2025-03-08 18:05:19,512 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-1: assume false; [2025-03-08 18:05:19,512 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-1: assume !false; [2025-03-08 18:05:19,567 INFO L? ?]: Removed 381 outVars from TransFormulas that were not future-live. [2025-03-08 18:05:19,567 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:05:19,658 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:05:19,659 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:05:19,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:05:19 BoogieIcfgContainer [2025-03-08 18:05:19,660 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:05:19,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:05:19,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:05:19,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:05:19,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:05:09" (1/3) ... [2025-03-08 18:05:19,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69818621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:05:19, skipping insertion in model container [2025-03-08 18:05:19,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:05:12" (2/3) ... [2025-03-08 18:05:19,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69818621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:05:19, skipping insertion in model container [2025-03-08 18:05:19,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:05:19" (3/3) ... [2025-03-08 18:05:19,670 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2025-03-08 18:05:19,682 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:05:19,683 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_string_harness.i that has 11 procedures, 351 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-08 18:05:19,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:05:19,752 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;@65c7b658, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:05:19,752 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:05:19,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 351 states, 325 states have (on average 1.5507692307692307) internal successors, (504), 325 states have internal predecessors, (504), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-08 18:05:19,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 18:05:19,771 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:05:19,772 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:05:19,772 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:05:19,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:05:19,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2101972367, now seen corresponding path program 1 times [2025-03-08 18:05:19,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:05:19,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974387717] [2025-03-08 18:05:19,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:05:19,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:05:24,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 18:05:24,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 18:05:24,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:05:24,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:05:25,019 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-08 18:05:25,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:05:25,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974387717] [2025-03-08 18:05:25,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974387717] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:05:25,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470653930] [2025-03-08 18:05:25,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:05:25,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:05:25,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:05:25,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:05:25,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 18:05:29,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 18:05:29,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 18:05:29,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:05:29,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:05:29,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 4200 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 18:05:29,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:05:29,691 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-08 18:05:29,691 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:05:29,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470653930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:05:29,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:05:29,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 18:05:29,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791578631] [2025-03-08 18:05:29,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:05:29,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 18:05:29,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:05:29,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 18:05:29,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:05:29,716 INFO L87 Difference]: Start difference. First operand has 351 states, 325 states have (on average 1.5507692307692307) internal successors, (504), 325 states have internal predecessors, (504), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-08 18:05:30,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:05:30,272 INFO L93 Difference]: Finished difference Result 691 states and 1063 transitions. [2025-03-08 18:05:30,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 18:05:30,274 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2025-03-08 18:05:30,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:05:30,282 INFO L225 Difference]: With dead ends: 691 [2025-03-08 18:05:30,282 INFO L226 Difference]: Without dead ends: 338 [2025-03-08 18:05:30,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:05:30,288 INFO L435 NwaCegarLoop]: 479 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 18:05:30,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 18:05:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2025-03-08 18:05:30,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2025-03-08 18:05:30,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 313 states have (on average 1.5559105431309903) internal successors, (487), 313 states have internal predecessors, (487), 15 states have call successors, (15), 10 states have call predecessors, (15), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-08 18:05:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 516 transitions. [2025-03-08 18:05:30,329 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 516 transitions. Word has length 102 [2025-03-08 18:05:30,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:05:30,330 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 516 transitions. [2025-03-08 18:05:30,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-08 18:05:30,330 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 516 transitions. [2025-03-08 18:05:30,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 18:05:30,333 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:05:30,333 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:05:30,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 18:05:30,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 18:05:30,534 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:05:30,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:05:30,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1128543183, now seen corresponding path program 1 times [2025-03-08 18:05:30,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:05:30,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105149668] [2025-03-08 18:05:30,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:05:30,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:05:34,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 18:05:36,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 18:05:36,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:05:36,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:05:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 18:05:58,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:05:58,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105149668] [2025-03-08 18:05:58,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105149668] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:05:58,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917608614] [2025-03-08 18:05:58,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:05:58,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:05:58,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:05:58,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:05:58,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 18:06:02,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 18:06:02,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 18:06:02,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:06:02,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:06:02,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 4200 conjuncts, 155 conjuncts are in the unsatisfiable core [2025-03-08 18:06:02,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:06:04,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 43 [2025-03-08 18:06:04,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:06:04,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2025-03-08 18:06:04,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 18:06:04,795 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2025-03-08 18:06:04,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 16 [2025-03-08 18:06:04,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7