./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 8fc3dc66 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-?-8fc3dc6-m [2025-03-17 07:12:32,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:12:32,279 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:12:32,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:12:32,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:12:32,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:12:32,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:12:32,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:12:32,302 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:12:32,302 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:12:32,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:12:32,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:12:32,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:12:32,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:12:32,303 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:12:32,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:12:32,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:12:32,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:12:32,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:12:32,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:12:32,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:12:32,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:12:32,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:12:32,304 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:12:32,304 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:12:32,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:12:32,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:12:32,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:12:32,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:12:32,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:12:32,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:12:32,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:12:32,305 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:12:32,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:12:32,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:12:32,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:12:32,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:12:32,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:12:32,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:12:32,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:12:32,305 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 [2025-03-17 07:12:32,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:12:32,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:12:32,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:12:32,552 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:12:32,552 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:12:32,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-03-17 07:12:33,786 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836b999af/f552dcafd72940d6ae4ffff19c976662/FLAG1d58f444c [2025-03-17 07:12:34,330 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:12:34,331 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2025-03-17 07:12:34,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836b999af/f552dcafd72940d6ae4ffff19c976662/FLAG1d58f444c [2025-03-17 07:12:34,389 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836b999af/f552dcafd72940d6ae4ffff19c976662 [2025-03-17 07:12:34,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:12:34,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:12:34,393 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:12:34,393 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:12:34,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:12:34,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:12:34" (1/1) ... [2025-03-17 07:12:34,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c88cf73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:34, skipping insertion in model container [2025-03-17 07:12:34,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:12:34" (1/1) ... [2025-03-17 07:12:34,466 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:12:34,746 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] [2025-03-17 07:12:34,756 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] [2025-03-17 07:12:35,368 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,370 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,389 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:35,390 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,095 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,097 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,153 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,154 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,154 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,154 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,155 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,155 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,155 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,235 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] [2025-03-17 07:12:36,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:12:36,261 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:12:36,271 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] [2025-03-17 07:12:36,271 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] [2025-03-17 07:12:36,319 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,319 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,320 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,320 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,321 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,327 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,330 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,330 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,330 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,393 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-17 07:12:36,448 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,449 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,458 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,460 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,461 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,467 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,468 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,468 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,468 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,468 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,470 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:12:36,486 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] [2025-03-17 07:12:36,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:12:36,673 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:12:36,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36 WrapperNode [2025-03-17 07:12:36,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:12:36,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:12:36,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:12:36,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:12:36,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,825 INFO L138 Inliner]: procedures = 763, calls = 2477, calls flagged for inlining = 68, calls inlined = 5, statements flattened = 533 [2025-03-17 07:12:36,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:12:36,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:12:36,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:12:36,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:12:36,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,842 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,891 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]. [2025-03-17 07:12:36,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,925 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:12:36,968 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:12:36,968 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:12:36,968 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:12:36,969 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (1/1) ... [2025-03-17 07:12:36,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:12:36,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:12:36,997 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) [2025-03-17 07:12:36,999 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 [2025-03-17 07:12:37,016 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2025-03-17 07:12:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:12:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-17 07:12:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:12:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:12:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:12:37,017 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:12:37,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2025-03-17 07:12:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:12:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-17 07:12:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2025-03-17 07:12:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:12:37,018 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:12:37,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:12:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:12:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 07:12:37,300 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:12:37,302 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:12:37,350 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-17 07:12:37,376 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6305: havoc #t~mem498;havoc #t~short499;havoc #t~mem500;havoc #t~mem501;havoc #t~short502; [2025-03-17 07:12:37,382 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:12:37,392 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-17 07:12:37,423 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6864: havoc #t~ret574#1.base, #t~ret574#1.offset; [2025-03-17 07:12:43,139 INFO L1322 $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; [2025-03-17 07:12:43,140 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-1: assume false; [2025-03-17 07:12:43,140 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9951-1: assume !false; [2025-03-17 07:12:43,187 INFO L? ?]: Removed 377 outVars from TransFormulas that were not future-live. [2025-03-17 07:12:43,188 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:12:43,232 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:12:43,233 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:12:43,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:12:43 BoogieIcfgContainer [2025-03-17 07:12:43,233 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:12:43,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:12:43,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:12:43,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:12:43,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:12:34" (1/3) ... [2025-03-17 07:12:43,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed52154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:12:43, skipping insertion in model container [2025-03-17 07:12:43,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:12:36" (2/3) ... [2025-03-17 07:12:43,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed52154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:12:43, skipping insertion in model container [2025-03-17 07:12:43,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:12:43" (3/3) ... [2025-03-17 07:12:43,240 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2025-03-17 07:12:43,250 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:12:43,252 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_string_harness.i that has 11 procedures, 347 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-17 07:12:43,302 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:12:43,309 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;@24c88a7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:12:43,310 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:12:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 321 states have (on average 1.557632398753894) internal successors, (500), 321 states have internal predecessors, (500), 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) [2025-03-17 07:12:43,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-17 07:12:43,327 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:43,327 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] [2025-03-17 07:12:43,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:43,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash -655172068, now seen corresponding path program 1 times [2025-03-17 07:12:43,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:43,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398317518] [2025-03-17 07:12:43,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:43,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:47,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-17 07:12:47,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-17 07:12:47,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:47,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:48,240 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-17 07:12:48,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:12:48,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398317518] [2025-03-17 07:12:48,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398317518] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:12:48,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509483403] [2025-03-17 07:12:48,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:48,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:12:48,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:12:48,245 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) [2025-03-17 07:12:48,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 07:12:52,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-17 07:12:52,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-17 07:12:52,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:52,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:52,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 4199 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 07:12:52,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:12:52,783 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-17 07:12:52,783 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:12:52,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509483403] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:52,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:12:52,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 07:12:52,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845229474] [2025-03-17 07:12:52,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:52,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 07:12:52,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:52,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 07:12:52,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:12:52,812 INFO L87 Difference]: Start difference. First operand has 347 states, 321 states have (on average 1.557632398753894) internal successors, (500), 321 states have internal predecessors, (500), 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 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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) [2025-03-17 07:12:53,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:53,366 INFO L93 Difference]: Finished difference Result 684 states and 1056 transitions. [2025-03-17 07:12:53,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 07:12:53,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 100 [2025-03-17 07:12:53,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:53,375 INFO L225 Difference]: With dead ends: 684 [2025-03-17 07:12:53,375 INFO L226 Difference]: Without dead ends: 336 [2025-03-17 07:12:53,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:12:53,381 INFO L435 NwaCegarLoop]: 475 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, 475 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 [2025-03-17 07:12:53,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 07:12:53,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2025-03-17 07:12:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2025-03-17 07:12:53,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 311 states have (on average 1.5594855305466238) internal successors, (485), 311 states have internal predecessors, (485), 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) [2025-03-17 07:12:53,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 514 transitions. [2025-03-17 07:12:53,419 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 514 transitions. Word has length 100 [2025-03-17 07:12:53,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:53,419 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 514 transitions. [2025-03-17 07:12:53,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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) [2025-03-17 07:12:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 514 transitions. [2025-03-17 07:12:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-17 07:12:53,423 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:53,424 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] [2025-03-17 07:12:53,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 07:12:53,630 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 [2025-03-17 07:12:53,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:53,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:53,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1746311400, now seen corresponding path program 1 times [2025-03-17 07:12:53,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:53,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299223228] [2025-03-17 07:12:53,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:53,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:57,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-17 07:12:59,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-17 07:12:59,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:59,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:13:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-17 07:13:18,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:13:18,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299223228] [2025-03-17 07:13:18,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299223228] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:13:18,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052858663] [2025-03-17 07:13:18,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:13:18,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:13:18,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:13:18,068 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) [2025-03-17 07:13:18,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 07:13:22,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-17 07:13:39,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-17 07:13:39,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:13:39,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:13:39,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 4199 conjuncts, 152 conjuncts are in the unsatisfiable core [2025-03-17 07:13:39,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:13:39,997 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 [2025-03-17 07:13:40,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 07:13:40,109 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2025-03-17 07:13:40,110 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 [2025-03-17 07:13:40,205 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 [2025-03-17 07:13:40,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 07:13:40,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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