./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_iter_begin_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 421f397ecb374fcc22201279d98969d7d1e8c35a1593d9d42549f7d3b356eac0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:52:27,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:52:27,931 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:52:27,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:52:27,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:52:27,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:52:27,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:52:27,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:52:27,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:52:27,964 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:52:27,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:52:27,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:52:27,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:52:27,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:52:27,964 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:52:27,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:52:27,965 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:52:27,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:52:27,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:52:27,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:52:27,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:52:27,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:52:27,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:52:27,966 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:52:27,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:52:27,966 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:52:27,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:52:27,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:52:27,967 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:52:27,967 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:52:27,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:52:27,967 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 -> 421f397ecb374fcc22201279d98969d7d1e8c35a1593d9d42549f7d3b356eac0 [2025-03-04 02:52:28,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:52:28,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:52:28,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:52:28,199 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:52:28,199 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:52:28,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2025-03-04 02:52:29,306 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03695911e/c63f4e655f1d42e393fb73555ca9dae0/FLAG5ecd797ba [2025-03-04 02:52:29,775 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:52:29,776 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness.i [2025-03-04 02:52:29,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03695911e/c63f4e655f1d42e393fb73555ca9dae0/FLAG5ecd797ba [2025-03-04 02:52:29,883 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03695911e/c63f4e655f1d42e393fb73555ca9dae0 [2025-03-04 02:52:29,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:52:29,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:52:29,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:52:29,888 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:52:29,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:52:29,892 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b259a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:29, skipping insertion in model container [2025-03-04 02:52:29,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:52:29" (1/1) ... [2025-03-04 02:52:29,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:52:30,156 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_iter_begin_harness.i[4493,4506] [2025-03-04 02:52:30,163 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_iter_begin_harness.i[4553,4566] [2025-03-04 02:52:30,720 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,720 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,722 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,734 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:30,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,412 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,412 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,428 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,428 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,432 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,432 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,441 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,442 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,443 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,443 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,443 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,444 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,444 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,468 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_iter_begin_harness.i[227550,227563] [2025-03-04 02:52:31,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:52:31,489 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:52:31,500 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_iter_begin_harness.i[4493,4506] [2025-03-04 02:52:31,500 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_iter_begin_harness.i[4553,4566] [2025-03-04 02:52:31,533 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,534 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,534 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,534 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,534 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,541 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,542 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,542 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,543 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,543 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,544 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,544 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-04 02:52:31,663 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,664 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,705 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,707 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,716 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,716 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,716 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,716 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,716 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,717 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,717 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:52:31,730 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_iter_begin_harness.i[227550,227563] [2025-03-04 02:52:31,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:52:31,880 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:52:31,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31 WrapperNode [2025-03-04 02:52:31,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:52:31,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:52:31,882 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:52:31,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:52:31,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:31,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,011 INFO L138 Inliner]: procedures = 763, calls = 2441, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 623 [2025-03-04 02:52:32,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:52:32,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:52:32,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:52:32,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:52:32,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,087 INFO L175 MemorySlicer]: Split 339 memory accesses to 8 slices as follows [2, 51, 247, 3, 2, 6, 23, 5]. 73 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 9, 6, 0, 0, 0, 0, 5]. The 249 writes are split as follows [0, 11, 233, 1, 1, 2, 1, 0]. [2025-03-04 02:52:32,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,120 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:52:32,159 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:52:32,160 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:52:32,160 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:52:32,161 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (1/1) ... [2025-03-04 02:52:32,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:52:32,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:52:32,188 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) [2025-03-04 02:52:32,190 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 [2025-03-04 02:52:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-04 02:52:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-04 02:52:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-04 02:52:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-04 02:52:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-04 02:52:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-04 02:52:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-04 02:52:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-04 02:52:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:52:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:52:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:52:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:52:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:52:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:52:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:52:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:52:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-04 02:52:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:52:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:52:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:52:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:52:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:52:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:52:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:52:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-04 02:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:52:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:52:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_begin [2025-03-04 02:52:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_begin [2025-03-04 02:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-04 02:52:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-04 02:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-04 02:52:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:52:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:52:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:52:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:52:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:52:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:52:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:52:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:52:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-04 02:52:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:52:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:52:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-04 02:52:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:52:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-04 02:52:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-04 02:52:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-04 02:52:32,541 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:52:32,544 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:52:32,574 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-04 02:52:32,603 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-04 02:52:32,605 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:52:32,739 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9825-1: assume false; [2025-03-04 02:52:32,739 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9825-1: assume !false; [2025-03-04 02:52:32,739 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9825-2: havoc #t~mem1400.base, #t~mem1400.offset;havoc #t~mem1401.base, #t~mem1401.offset;havoc #t~mem1402.base, #t~mem1402.offset;havoc #t~mem1403;havoc #t~mem1404;havoc #t~mem1405;havoc #t~mem1406;havoc #t~mem1407.base, #t~mem1407.offset;havoc #t~mem1408.base, #t~mem1408.offset; [2025-03-04 02:52:32,848 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-04 02:52:32,887 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-03-04 02:52:32,905 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-04 02:52:32,915 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-04 02:52:38,433 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:52:38,492 INFO L? ?]: Removed 191 outVars from TransFormulas that were not future-live. [2025-03-04 02:52:38,493 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:52:38,506 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:52:38,506 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:52:38,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:52:38 BoogieIcfgContainer [2025-03-04 02:52:38,506 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:52:38,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:52:38,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:52:38,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:52:38,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:52:29" (1/3) ... [2025-03-04 02:52:38,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cdd2170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:52:38, skipping insertion in model container [2025-03-04 02:52:38,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:52:31" (2/3) ... [2025-03-04 02:52:38,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cdd2170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:52:38, skipping insertion in model container [2025-03-04 02:52:38,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:52:38" (3/3) ... [2025-03-04 02:52:38,514 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness.i [2025-03-04 02:52:38,524 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:52:38,527 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_begin_harness.i that has 25 procedures, 203 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2025-03-04 02:52:38,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:52:38,583 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;@6bfe5cd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:52:38,584 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:52:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 117 states have internal predecessors, (148), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-03-04 02:52:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-04 02:52:38,600 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:52:38,600 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:52:38,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:52:38,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:52:38,606 INFO L85 PathProgramCache]: Analyzing trace with hash 42316401, now seen corresponding path program 1 times [2025-03-04 02:52:38,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:52:38,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190014592] [2025-03-04 02:52:38,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:52:38,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:52:42,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-04 02:52:43,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-04 02:52:43,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:52:43,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:52:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-03-04 02:52:43,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:52:43,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190014592] [2025-03-04 02:52:43,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190014592] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:52:43,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606957604] [2025-03-04 02:52:43,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:52:43,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:52:43,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:52:43,584 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) [2025-03-04 02:52:43,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:52:47,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-04 02:52:48,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-04 02:52:48,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:52:48,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:52:48,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 4547 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:52:48,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:52:48,437 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-03-04 02:52:48,437 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:52:48,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606957604] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:52:48,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:52:48,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:52:48,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522901958] [2025-03-04 02:52:48,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:52:48,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:52:48,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:52:48,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:52:48,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:52:48,457 INFO L87 Difference]: Start difference. First operand has 175 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 117 states have internal predecessors, (148), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-04 02:52:48,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:52:48,493 INFO L93 Difference]: Finished difference Result 341 states and 476 transitions. [2025-03-04 02:52:48,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:52:48,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 149 [2025-03-04 02:52:48,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:52:48,503 INFO L225 Difference]: With dead ends: 341 [2025-03-04 02:52:48,505 INFO L226 Difference]: Without dead ends: 168 [2025-03-04 02:52:48,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:52:48,514 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 02:52:48,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:52:48,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-03-04 02:52:48,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-03-04 02:52:48,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 111 states have internal predecessors, (136), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-04 02:52:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2025-03-04 02:52:48,557 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 149 [2025-03-04 02:52:48,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:52:48,557 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2025-03-04 02:52:48,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-04 02:52:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2025-03-04 02:52:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-04 02:52:48,564 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:52:48,565 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:52:48,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 02:52:48,765 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 [2025-03-04 02:52:48,766 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:52:48,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:52:48,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1177060570, now seen corresponding path program 1 times [2025-03-04 02:52:48,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:52:48,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162430188] [2025-03-04 02:52:48,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:52:48,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:52:52,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-04 02:52:52,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-04 02:52:52,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:52:52,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:52:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-04 02:52:53,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:52:53,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162430188] [2025-03-04 02:52:53,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162430188] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:52:53,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060819751] [2025-03-04 02:52:53,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:52:53,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:52:53,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:52:53,807 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) [2025-03-04 02:52:53,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:52:58,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-04 02:52:58,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-04 02:52:58,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:52:58,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:52:58,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 4572 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:52:58,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:53:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-04 02:53:02,139 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 02:53:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-04 02:53:05,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060819751] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 02:53:05,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-04 02:53:05,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2025-03-04 02:53:05,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475508122] [2025-03-04 02:53:05,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:53:05,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:53:05,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:53:05,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:53:05,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2025-03-04 02:53:05,921 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-04 02:53:08,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:53:08,884 INFO L93 Difference]: Finished difference Result 246 states and 320 transitions. [2025-03-04 02:53:08,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:53:08,885 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 155 [2025-03-04 02:53:08,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:53:08,890 INFO L225 Difference]: With dead ends: 246 [2025-03-04 02:53:08,890 INFO L226 Difference]: Without dead ends: 176 [2025-03-04 02:53:08,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2025-03-04 02:53:08,891 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 214 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-04 02:53:08,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 881 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-04 02:53:08,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-03-04 02:53:08,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 170. [2025-03-04 02:53:08,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 111 states have (on average 1.2342342342342343) internal successors, (137), 113 states have internal predecessors, (137), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2025-03-04 02:53:08,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 217 transitions. [2025-03-04 02:53:08,910 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 217 transitions. Word has length 155 [2025-03-04 02:53:08,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:53:08,910 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 217 transitions. [2025-03-04 02:53:08,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-04 02:53:08,911 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 217 transitions. [2025-03-04 02:53:08,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-04 02:53:08,913 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:53:08,913 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:53:08,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 02:53:09,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 02:53:09,114 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:53:09,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:53:09,114 INFO L85 PathProgramCache]: Analyzing trace with hash -72519854, now seen corresponding path program 1 times [2025-03-04 02:53:09,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:53:09,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779237694] [2025-03-04 02:53:09,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:53:09,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:53:12,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 02:53:12,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 02:53:12,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:53:12,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:53:13,863 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-04 02:53:13,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:53:13,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779237694] [2025-03-04 02:53:13,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779237694] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:53:13,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4846124] [2025-03-04 02:53:13,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:53:13,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:53:13,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:53:13,866 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:53:13,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 02:53:18,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 02:53:18,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 02:53:18,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:53:18,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:53:18,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 4577 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:53:18,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:53:18,892 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-03-04 02:53:18,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:53:18,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4846124] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:53:18,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:53:18,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-04 02:53:18,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281801760] [2025-03-04 02:53:18,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:53:18,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:53:18,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:53:18,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:53:18,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:53:18,894 INFO L87 Difference]: Start difference. First operand 170 states and 217 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 02:53:19,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:53:19,115 INFO L93 Difference]: Finished difference Result 333 states and 426 transitions. [2025-03-04 02:53:19,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 02:53:19,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 156 [2025-03-04 02:53:19,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:53:19,120 INFO L225 Difference]: With dead ends: 333 [2025-03-04 02:53:19,120 INFO L226 Difference]: Without dead ends: 175 [2025-03-04 02:53:19,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:53:19,121 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 02:53:19,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 840 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 02:53:19,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-04 02:53:19,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-04 02:53:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 117 states have internal predecessors, (141), 40 states have call successors, (40), 17 states have call predecessors, (40), 19 states have return successors, (41), 40 states have call predecessors, (41), 39 states have call successors, (41) [2025-03-04 02:53:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 222 transitions. [2025-03-04 02:53:19,138 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 222 transitions. Word has length 156 [2025-03-04 02:53:19,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:53:19,139 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 222 transitions. [2025-03-04 02:53:19,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 02:53:19,139 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 222 transitions. [2025-03-04 02:53:19,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-03-04 02:53:19,141 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:53:19,141 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:53:19,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 02:53:19,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:53:19,343 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:53:19,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:53:19,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1995988466, now seen corresponding path program 1 times [2025-03-04 02:53:19,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:53:19,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868725099] [2025-03-04 02:53:19,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:53:19,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:53:23,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-04 02:53:23,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-04 02:53:23,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:53:23,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:53:26,707 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-03-04 02:53:26,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:53:26,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868725099] [2025-03-04 02:53:26,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868725099] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:53:26,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151540242] [2025-03-04 02:53:26,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:53:26,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:53:26,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:53:26,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:53:26,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 02:53:31,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-04 02:53:31,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-04 02:53:31,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:53:31,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:53:31,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 4585 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-03-04 02:53:31,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:53:32,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-04 02:53:39,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2025-03-04 02:53:39,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2025-03-04 02:53:41,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 20 treesize of output 12 [2025-03-04 02:53:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-04 02:53:44,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:53:44,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151540242] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:53:44,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:53:44,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [10] total 26 [2025-03-04 02:53:44,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972359310] [2025-03-04 02:53:44,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:53:44,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-04 02:53:44,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:53:44,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-04 02:53:44,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2025-03-04 02:53:44,659 INFO L87 Difference]: Start difference. First operand 175 states and 222 transitions. Second operand has 19 states, 17 states have (on average 5.529411764705882) internal successors, (94), 16 states have internal predecessors, (94), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) [2025-03-04 02:53:48,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 02:53:53,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 02:53:57,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 02:54:01,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []