./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:28:14,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:28:14,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:28:14,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:28:14,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:28:14,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:28:14,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:28:14,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:28:14,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:28:14,173 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:28:14,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:28:14,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:28:14,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:28:14,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:28:14,174 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:28:14,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:28:14,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:28:14,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:28:14,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:28:14,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:28:14,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:28:14,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:28:14,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:28:14,175 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:28:14,175 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:28:14,176 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:28:14,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:28:14,176 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53c422310795c2e7f5b0f72e5a73eee871aa1645d7b73c98001e28d2bf239333 [2025-02-08 01:28:14,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:28:14,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:28:14,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:28:14,432 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:28:14,432 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:28:14,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2025-02-08 01:28:15,653 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4700c8697/c1f9b7cbb17c4dcb8a1276c9d48c237a/FLAGbda2fe1bc [2025-02-08 01:28:16,195 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:28:16,198 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i [2025-02-08 01:28:16,227 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4700c8697/c1f9b7cbb17c4dcb8a1276c9d48c237a/FLAGbda2fe1bc [2025-02-08 01:28:16,237 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4700c8697/c1f9b7cbb17c4dcb8a1276c9d48c237a [2025-02-08 01:28:16,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:28:16,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:28:16,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:28:16,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:28:16,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:28:16,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:28:16" (1/1) ... [2025-02-08 01:28:16,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399d6d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:16, skipping insertion in model container [2025-02-08 01:28:16,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:28:16" (1/1) ... [2025-02-08 01:28:16,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:28:16,467 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2025-02-08 01:28:16,472 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2025-02-08 01:28:16,866 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,888 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,888 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,889 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,890 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,892 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:16,892 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,337 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,342 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:28:17,409 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:28:17,419 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4495,4508] [2025-02-08 01:28:17,419 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness.i[4555,4568] [2025-02-08 01:28:17,468 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,469 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,475 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,475 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,581 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,585 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:28:17,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2025-02-08 01:28:17,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:28:17,826 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:28:17,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17 WrapperNode [2025-02-08 01:28:17,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:28:17,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:28:17,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:28:17,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:28:17,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:17,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:17,907 INFO L138 Inliner]: procedures = 679, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 592 [2025-02-08 01:28:17,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:28:17,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:28:17,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:28:17,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:28:17,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:17,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:17,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:17,974 INFO L175 MemorySlicer]: Split 303 memory accesses to 6 slices as follows [2, 7, 238, 47, 3, 6]. 79 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 5, 6, 10, 1, 0]. The 238 writes are split as follows [0, 0, 232, 3, 1, 2]. [2025-02-08 01:28:17,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:17,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:17,997 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:17,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:18,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:18,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:18,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:28:18,008 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:28:18,008 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:28:18,008 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:28:18,009 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (1/1) ... [2025-02-08 01:28:18,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:28:18,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:18,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:28:18,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:28:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:28:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:28:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:28:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:28:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:28:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:28:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:28:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:28:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:28:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:28:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:28:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:28:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:28:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-08 01:28:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:28:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:28:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:28:18,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:28:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:28:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:28:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:28:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:28:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:28:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:28:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:28:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:28:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:28:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:28:18,311 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:28:18,314 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:28:18,368 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:28:18,410 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:28:18,499 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-08 01:28:18,502 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:28:24,027 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7185-1: SUMMARY for call assume_abort_if_not((if 0 == (if save_byte_from_array_#t~mem629#1 % 18446744073709551616 < save_byte_from_array_~size#1 % 18446744073709551616 then 1 else 0) then 0 else 1)); srcloc: null [2025-02-08 01:28:24,027 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7185: havoc save_byte_from_array_#t~mem629#1;call save_byte_from_array_#t~mem630#1 := read~int#5(save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8);call save_byte_from_array_#t~mem631#1 := read~int#1(save_byte_from_array_~array#1.base, save_byte_from_array_~array#1.offset + (if save_byte_from_array_#t~mem630#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then save_byte_from_array_#t~mem630#1 % 18446744073709551616 % 18446744073709551616 else save_byte_from_array_#t~mem630#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 1);call write~int#5(save_byte_from_array_#t~mem631#1, save_byte_from_array_~storage#1.base, 8 + save_byte_from_array_~storage#1.offset, 1);havoc save_byte_from_array_#t~mem630#1;havoc save_byte_from_array_#t~mem631#1; [2025-02-08 01:28:24,027 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1;save_byte_from_array_#t~ret628#1 := nondet_size_t_#res#1;havoc nondet_size_t_#t~nondet6#1;assume { :end_inline_nondet_size_t } true;call write~int#5(save_byte_from_array_#t~ret628#1, save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8);havoc save_byte_from_array_#t~ret628#1;call save_byte_from_array_#t~mem629#1 := read~int#5(save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8); [2025-02-08 01:28:24,055 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2025-02-08 01:28:24,055 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:28:24,063 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:28:24,063 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:28:24,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:28:24 BoogieIcfgContainer [2025-02-08 01:28:24,064 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:28:24,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:28:24,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:28:24,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:28:24,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:28:16" (1/3) ... [2025-02-08 01:28:24,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e031e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:28:24, skipping insertion in model container [2025-02-08 01:28:24,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:28:17" (2/3) ... [2025-02-08 01:28:24,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e031e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:28:24, skipping insertion in model container [2025-02-08 01:28:24,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:28:24" (3/3) ... [2025-02-08 01:28:24,072 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness.i [2025-02-08 01:28:24,083 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:28:24,085 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_length_harness.i that has 14 procedures, 118 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:28:24,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:28:24,142 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;@2b58cd6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:28:24,142 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:28:24,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 75 states have internal predecessors, (87), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-02-08 01:28:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-08 01:28:24,155 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:24,156 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-02-08 01:28:24,157 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:24,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:24,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1448106452, now seen corresponding path program 1 times [2025-02-08 01:28:24,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:24,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658550281] [2025-02-08 01:28:24,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:24,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:28,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-08 01:28:29,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 01:28:29,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:29,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-02-08 01:28:29,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:29,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658550281] [2025-02-08 01:28:29,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658550281] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:28:29,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577897356] [2025-02-08 01:28:29,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:29,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:29,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:29,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:28:29,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:28:33,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-08 01:28:34,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 01:28:34,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:34,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:34,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 4076 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:28:34,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:28:34,196 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-02-08 01:28:34,197 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:28:34,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577897356] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:34,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:28:34,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:28:34,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855071723] [2025-02-08 01:28:34,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:34,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:28:34,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:34,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:28:34,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:28:34,216 INFO L87 Difference]: Start difference. First operand has 118 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 75 states have internal predecessors, (87), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 01:28:34,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:34,241 INFO L93 Difference]: Finished difference Result 230 states and 301 transitions. [2025-02-08 01:28:34,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:28:34,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 70 [2025-02-08 01:28:34,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:34,248 INFO L225 Difference]: With dead ends: 230 [2025-02-08 01:28:34,248 INFO L226 Difference]: Without dead ends: 103 [2025-02-08 01:28:34,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:28:34,253 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:34,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:28:34,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-02-08 01:28:34,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2025-02-08 01:28:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 63 states have (on average 1.1428571428571428) internal successors, (72), 64 states have internal predecessors, (72), 28 states have call successors, (28), 12 states have call predecessors, (28), 11 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-02-08 01:28:34,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 126 transitions. [2025-02-08 01:28:34,282 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 126 transitions. Word has length 70 [2025-02-08 01:28:34,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:34,282 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 126 transitions. [2025-02-08 01:28:34,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 01:28:34,282 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 126 transitions. [2025-02-08 01:28:34,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-08 01:28:34,284 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:34,284 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-02-08 01:28:34,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:28:34,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:28:34,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:34,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:34,490 INFO L85 PathProgramCache]: Analyzing trace with hash 678945975, now seen corresponding path program 1 times [2025-02-08 01:28:34,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:34,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126429611] [2025-02-08 01:28:34,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:34,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:38,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-08 01:28:38,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 01:28:38,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:38,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-08 01:28:39,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:39,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126429611] [2025-02-08 01:28:39,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126429611] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:28:39,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770567501] [2025-02-08 01:28:39,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:39,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:39,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:39,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:28:39,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:28:43,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-08 01:28:44,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 01:28:44,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:44,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:44,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 4076 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 01:28:44,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:28:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-08 01:28:44,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:28:44,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770567501] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:44,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:28:44,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-08 01:28:44,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691821243] [2025-02-08 01:28:44,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:44,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:28:44,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:44,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:28:44,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:28:44,755 INFO L87 Difference]: Start difference. First operand 103 states and 126 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-08 01:28:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:45,199 INFO L93 Difference]: Finished difference Result 172 states and 213 transitions. [2025-02-08 01:28:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:28:45,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 70 [2025-02-08 01:28:45,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:45,202 INFO L225 Difference]: With dead ends: 172 [2025-02-08 01:28:45,202 INFO L226 Difference]: Without dead ends: 105 [2025-02-08 01:28:45,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:28:45,205 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 22 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:45,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 418 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 01:28:45,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-02-08 01:28:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-02-08 01:28:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 64 states have (on average 1.140625) internal successors, (73), 66 states have internal predecessors, (73), 28 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) [2025-02-08 01:28:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 129 transitions. [2025-02-08 01:28:45,223 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 129 transitions. Word has length 70 [2025-02-08 01:28:45,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:45,223 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 129 transitions. [2025-02-08 01:28:45,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-08 01:28:45,223 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 129 transitions. [2025-02-08 01:28:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-08 01:28:45,225 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:45,225 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:28:45,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:28:45,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:45,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:45,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:45,430 INFO L85 PathProgramCache]: Analyzing trace with hash -991641103, now seen corresponding path program 1 times [2025-02-08 01:28:45,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:45,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494655821] [2025-02-08 01:28:45,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:45,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:48,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-08 01:28:49,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 01:28:49,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:49,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:50,208 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-08 01:28:50,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:50,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494655821] [2025-02-08 01:28:50,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494655821] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:28:50,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586949268] [2025-02-08 01:28:50,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:50,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:50,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:50,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:28:50,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:28:54,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-08 01:28:54,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 01:28:54,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:54,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:54,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 4203 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:28:54,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:28:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-08 01:28:55,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:28:55,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586949268] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:55,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:28:55,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-02-08 01:28:55,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195783614] [2025-02-08 01:28:55,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:55,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:28:55,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:55,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:28:55,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-08 01:28:55,789 INFO L87 Difference]: Start difference. First operand 105 states and 129 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-02-08 01:28:56,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:56,536 INFO L93 Difference]: Finished difference Result 164 states and 199 transitions. [2025-02-08 01:28:56,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:28:56,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2025-02-08 01:28:56,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:56,537 INFO L225 Difference]: With dead ends: 164 [2025-02-08 01:28:56,538 INFO L226 Difference]: Without dead ends: 103 [2025-02-08 01:28:56,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:28:56,539 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 30 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:56,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 618 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-08 01:28:56,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-02-08 01:28:56,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2025-02-08 01:28:56,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 63 states have (on average 1.126984126984127) internal successors, (71), 64 states have internal predecessors, (71), 28 states have call successors, (28), 12 states have call predecessors, (28), 11 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-02-08 01:28:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 125 transitions. [2025-02-08 01:28:56,545 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 125 transitions. Word has length 84 [2025-02-08 01:28:56,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:56,546 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 125 transitions. [2025-02-08 01:28:56,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-02-08 01:28:56,546 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 125 transitions. [2025-02-08 01:28:56,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-02-08 01:28:56,547 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:56,548 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-02-08 01:28:56,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 01:28:56,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:56,749 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:56,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash 7562737, now seen corresponding path program 1 times [2025-02-08 01:28:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:56,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067593683] [2025-02-08 01:28:56,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:56,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:29:00,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-08 01:29:04,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-08 01:29:04,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:29:04,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 01:29:04,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816288486] [2025-02-08 01:29:04,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:29:04,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:29:04,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:29:04,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:29:04,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 01:29:08,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes.