./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_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_table_clear_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 414eeb8ea1256fa06cba80a48a09ba5f5bd5aff7438b9ba4ea2d399e84c5db41 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:54:08,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:54:09,004 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:54:09,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:54:09,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:54:09,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:54:09,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:54:09,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:54:09,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:54:09,037 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:54:09,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:54:09,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:54:09,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:54:09,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:54:09,037 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:54:09,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:54:09,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:54:09,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:54:09,038 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:54:09,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:54:09,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:54:09,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:54:09,039 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 -> 414eeb8ea1256fa06cba80a48a09ba5f5bd5aff7438b9ba4ea2d399e84c5db41 [2025-03-04 02:54:09,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:54:09,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:54:09,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:54:09,348 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:54:09,348 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:54:09,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2025-03-04 02:54:10,547 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1424f0b5c/a78e7b4ea49e4ac292008d6b95f103b9/FLAGc77eafca7 [2025-03-04 02:54:10,988 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:54:10,988 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness.i [2025-03-04 02:54:11,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1424f0b5c/a78e7b4ea49e4ac292008d6b95f103b9/FLAGc77eafca7 [2025-03-04 02:54:11,103 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1424f0b5c/a78e7b4ea49e4ac292008d6b95f103b9 [2025-03-04 02:54:11,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:54:11,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:54:11,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:54:11,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:54:11,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:54:11,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:54:11" (1/1) ... [2025-03-04 02:54:11,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eaa85da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:11, skipping insertion in model container [2025-03-04 02:54:11,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:54:11" (1/1) ... [2025-03-04 02:54:11,182 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:54:11,454 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_table_clear_harness.i[4494,4507] [2025-03-04 02:54:11,464 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_table_clear_harness.i[4554,4567] [2025-03-04 02:54:13,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,059 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,063 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,064 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:13,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,556 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,557 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,582 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,583 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,592 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,616 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,616 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,651 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_table_clear_harness.i[228101,228114] [2025-03-04 02:54:14,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:54:14,679 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:54:14,690 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_table_clear_harness.i[4494,4507] [2025-03-04 02:54:14,693 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_table_clear_harness.i[4554,4567] [2025-03-04 02:54:14,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,740 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,742 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,743 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,744 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7585-7596] [2025-03-04 02:54:14,917 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,917 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,923 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,924 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,936 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,937 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,937 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,937 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,937 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,938 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,938 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:54:14,957 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_table_clear_harness.i[228101,228114] [2025-03-04 02:54:14,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:54:15,116 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:54:15,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15 WrapperNode [2025-03-04 02:54:15,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:54:15,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:54:15,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:54:15,118 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:54:15,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,239 INFO L138 Inliner]: procedures = 764, calls = 2435, calls flagged for inlining = 69, calls inlined = 13, statements flattened = 613 [2025-03-04 02:54:15,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:54:15,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:54:15,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:54:15,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:54:15,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,262 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,311 INFO L175 MemorySlicer]: Split 292 memory accesses to 8 slices as follows [238, 2, 34, 1, 8, 2, 2, 5]. 82 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 0, 0, 5]. The 241 writes are split as follows [232, 0, 5, 1, 1, 1, 1, 0]. [2025-03-04 02:54:15,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,366 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,385 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:54:15,403 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:54:15,403 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:54:15,403 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:54:15,404 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (1/1) ... [2025-03-04 02:54:15,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:54:15,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:54:15,434 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 02:54:15,438 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 02:54:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-03-04 02:54:15,459 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-03-04 02:54:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-04 02:54:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-04 02:54:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-04 02:54:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-04 02:54:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-04 02:54:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-04 02:54:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-04 02:54:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-04 02:54:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:54:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:54:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:54:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:54:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-04 02:54:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_clear [2025-03-04 02:54:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_clear [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-04 02:54:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:54:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-03-04 02:54:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:54:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:54:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:54:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:54:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-04 02:54:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-04 02:54:15,462 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:54:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:54:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:54:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-04 02:54:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:54:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-04 02:54:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-04 02:54:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-04 02:54:15,465 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-04 02:54:15,756 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:54:15,758 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:54:15,798 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-04 02:54:15,827 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10130: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-04 02:54:15,907 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-04 02:54:15,910 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:54:15,924 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7415: havoc #t~ret691.base, #t~ret691.offset; [2025-03-04 02:54:15,947 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10017: havoc #t~mem1492.base, #t~mem1492.offset;havoc #t~short1493;havoc #t~mem1494.base, #t~mem1494.offset;havoc #t~ret1495;havoc #t~short1496; [2025-03-04 02:54:15,955 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:54:16,078 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-04 02:54:16,093 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-04 02:54:21,253 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6833: havoc aws_hash_table_has_an_empty_slot_#t~mem566#1.base, aws_hash_table_has_an_empty_slot_#t~mem566#1.offset;havoc aws_hash_table_has_an_empty_slot_#t~ret567#1; [2025-03-04 02:54:21,254 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6843: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-03-04 02:54:21,321 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2025-03-04 02:54:21,321 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:54:21,336 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:54:21,338 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:54:21,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:54:21 BoogieIcfgContainer [2025-03-04 02:54:21,338 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:54:21,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:54:21,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:54:21,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:54:21,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:54:11" (1/3) ... [2025-03-04 02:54:21,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7881abba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:54:21, skipping insertion in model container [2025-03-04 02:54:21,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:54:15" (2/3) ... [2025-03-04 02:54:21,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7881abba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:54:21, skipping insertion in model container [2025-03-04 02:54:21,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:54:21" (3/3) ... [2025-03-04 02:54:21,347 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness.i [2025-03-04 02:54:21,358 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:54:21,364 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clear_harness.i that has 19 procedures, 175 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-04 02:54:21,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:54:21,423 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;@34e7dab7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:54:21,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:54:21,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 115 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-03-04 02:54:21,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-04 02:54:21,436 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:54:21,437 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:54:21,438 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:54:21,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:54:21,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1591266050, now seen corresponding path program 1 times [2025-03-04 02:54:21,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:54:21,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656333216] [2025-03-04 02:54:21,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:21,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:54:26,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-04 02:54:26,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 02:54:26,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:26,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2025-03-04 02:54:26,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:54:26,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656333216] [2025-03-04 02:54:26,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656333216] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:54:26,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357992299] [2025-03-04 02:54:26,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:26,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:54:26,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:54:26,765 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 02:54:26,767 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 02:54:31,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-04 02:54:31,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 02:54:31,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:31,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:31,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 4363 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:54:31,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:54:31,691 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-03-04 02:54:31,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:54:31,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357992299] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:54:31,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:54:31,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:54:31,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811544029] [2025-03-04 02:54:31,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:54:31,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:54:31,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:54:31,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:54:31,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:54:31,712 INFO L87 Difference]: Start difference. First operand has 175 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 115 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-04 02:54:31,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:54:31,751 INFO L93 Difference]: Finished difference Result 345 states and 456 transitions. [2025-03-04 02:54:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:54:31,753 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-03-04 02:54:31,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:54:31,758 INFO L225 Difference]: With dead ends: 345 [2025-03-04 02:54:31,758 INFO L226 Difference]: Without dead ends: 168 [2025-03-04 02:54:31,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 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 02:54:31,763 INFO L435 NwaCegarLoop]: 213 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, 213 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 02:54:31,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:54:31,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-03-04 02:54:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-03-04 02:54:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 108 states have (on average 1.1574074074074074) internal successors, (125), 109 states have internal predecessors, (125), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-03-04 02:54:31,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2025-03-04 02:54:31,794 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 141 [2025-03-04 02:54:31,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:54:31,795 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2025-03-04 02:54:31,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-04 02:54:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2025-03-04 02:54:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-04 02:54:31,799 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:54:31,799 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:54:31,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:54:32,000 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 02:54:32,001 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:54:32,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:54:32,001 INFO L85 PathProgramCache]: Analyzing trace with hash -193809122, now seen corresponding path program 1 times [2025-03-04 02:54:32,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:54:32,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286067305] [2025-03-04 02:54:32,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:32,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:54:35,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-04 02:54:35,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 02:54:35,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:35,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-03-04 02:54:37,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:54:37,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286067305] [2025-03-04 02:54:37,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286067305] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:54:37,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:54:37,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 02:54:37,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818836587] [2025-03-04 02:54:37,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:54:37,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:54:37,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:54:37,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:54:37,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:54:37,027 INFO L87 Difference]: Start difference. First operand 168 states and 206 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-04 02:54:37,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:54:37,271 INFO L93 Difference]: Finished difference Result 299 states and 367 transitions. [2025-03-04 02:54:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 02:54:37,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-03-04 02:54:37,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:54:37,278 INFO L225 Difference]: With dead ends: 299 [2025-03-04 02:54:37,278 INFO L226 Difference]: Without dead ends: 173 [2025-03-04 02:54:37,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 02:54:37,279 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 804 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 02:54:37,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 804 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 02:54:37,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-03-04 02:54:37,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-03-04 02:54:37,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 112 states have (on average 1.1517857142857142) internal successors, (129), 113 states have internal predecessors, (129), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2025-03-04 02:54:37,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2025-03-04 02:54:37,304 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 141 [2025-03-04 02:54:37,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:54:37,305 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2025-03-04 02:54:37,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-04 02:54:37,305 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2025-03-04 02:54:37,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-04 02:54:37,308 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:54:37,308 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:54:37,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 02:54:37,309 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:54:37,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:54:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash -614702148, now seen corresponding path program 1 times [2025-03-04 02:54:37,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:54:37,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56502230] [2025-03-04 02:54:37,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:37,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:54:41,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 02:54:41,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 02:54:41,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:41,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-03-04 02:54:44,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:54:44,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56502230] [2025-03-04 02:54:44,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56502230] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:54:44,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379732596] [2025-03-04 02:54:44,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:44,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:54:44,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:54:44,776 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 02:54:44,777 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 02:54:49,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 02:54:49,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 02:54:49,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:49,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:54:49,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 4367 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-04 02:54:49,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:54:50,084 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 02:54:51,592 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-03-04 02:54:51,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:54:51,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379732596] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:54:51,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:54:51,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2025-03-04 02:54:51,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911357933] [2025-03-04 02:54:51,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:54:51,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 02:54:51,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:54:51,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 02:54:51,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2025-03-04 02:54:51,594 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-03-04 02:54:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:54:55,862 INFO L93 Difference]: Finished difference Result 309 states and 379 transitions. [2025-03-04 02:54:55,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 02:54:55,864 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 147 [2025-03-04 02:54:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:54:55,867 INFO L225 Difference]: With dead ends: 309 [2025-03-04 02:54:55,867 INFO L226 Difference]: Without dead ends: 197 [2025-03-04 02:54:55,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-03-04 02:54:55,868 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 124 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2025-03-04 02:54:55,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1256 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2025-03-04 02:54:55,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2025-03-04 02:54:55,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2025-03-04 02:54:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 129 states have (on average 1.1550387596899225) internal successors, (149), 131 states have internal predecessors, (149), 41 states have call successors, (41), 21 states have call predecessors, (41), 23 states have return successors, (43), 41 states have call predecessors, (43), 40 states have call successors, (43) [2025-03-04 02:54:55,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 233 transitions. [2025-03-04 02:54:55,892 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 233 transitions. Word has length 147 [2025-03-04 02:54:55,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:54:55,892 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 233 transitions. [2025-03-04 02:54:55,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-03-04 02:54:55,893 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 233 transitions. [2025-03-04 02:54:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-04 02:54:55,896 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:54:55,896 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:54:55,915 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 02:54:56,097 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,SelfDestructingSolverStorable2 [2025-03-04 02:54:56,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:54:56,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:54:56,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1185953381, now seen corresponding path program 1 times [2025-03-04 02:54:56,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:54:56,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26036045] [2025-03-04 02:54:56,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:54:56,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:54:59,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 02:54:59,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 02:54:59,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:54:59,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:55:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-03-04 02:55:00,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:55:00,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26036045] [2025-03-04 02:55:00,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26036045] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:55:00,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297635032] [2025-03-04 02:55:00,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:55:00,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:55:00,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:55:00,764 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 02:55:00,765 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 02:55:05,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-04 02:55:05,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-04 02:55:05,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:55:05,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:55:05,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 4362 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 02:55:05,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:55:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-03-04 02:55:06,454 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:55:06,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297635032] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:55:06,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:55:06,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 02:55:06,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966659294] [2025-03-04 02:55:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:55:06,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:55:06,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:55:06,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:55:06,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:55:06,456 INFO L87 Difference]: Start difference. First operand 194 states and 233 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 02:55:08,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:55:08,159 INFO L93 Difference]: Finished difference Result 316 states and 387 transitions. [2025-03-04 02:55:08,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:55:08,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2025-03-04 02:55:08,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:55:08,161 INFO L225 Difference]: With dead ends: 316 [2025-03-04 02:55:08,161 INFO L226 Difference]: Without dead ends: 199 [2025-03-04 02:55:08,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:55:08,163 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 200 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-04 02:55:08,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 692 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-04 02:55:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-03-04 02:55:08,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2025-03-04 02:55:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 130 states have (on average 1.1538461538461537) internal successors, (150), 132 states have internal predecessors, (150), 42 states have call successors, (42), 21 states have call predecessors, (42), 23 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2025-03-04 02:55:08,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 236 transitions. [2025-03-04 02:55:08,185 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 236 transitions. Word has length 147 [2025-03-04 02:55:08,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:55:08,186 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 236 transitions. [2025-03-04 02:55:08,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 02:55:08,186 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 236 transitions. [2025-03-04 02:55:08,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-04 02:55:08,187 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:55:08,187 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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 02:55:08,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 02:55:08,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:55:08,393 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:55:08,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:55:08,393 INFO L85 PathProgramCache]: Analyzing trace with hash -466292498, now seen corresponding path program 1 times [2025-03-04 02:55:08,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:55:08,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605932442] [2025-03-04 02:55:08,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:55:08,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:55:12,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-04 02:55:12,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-04 02:55:12,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:55:12,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:55:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2025-03-04 02:55:14,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:55:14,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605932442] [2025-03-04 02:55:14,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605932442] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:55:14,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362138383] [2025-03-04 02:55:14,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:55:14,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:55:14,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:55:14,559 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 02:55:14,560 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 02:55:18,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-04 02:55:19,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-04 02:55:19,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:55:19,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:55:19,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 4391 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 02:55:19,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:55:24,594 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((v_aws_hash_table_is_valid_~map.base_4 Int) (v_aws_hash_table_is_valid_~map.offset_4 Int)) (not (= (select (select |c_#memory_$Pointer$#4.offset| v_aws_hash_table_is_valid_~map.base_4) v_aws_hash_table_is_valid_~map.offset_4) 0))) (exists ((v_aws_hash_table_is_valid_~map.base_4 Int) (v_aws_hash_table_is_valid_~map.offset_4 Int)) (not (= (select (select |c_#memory_$Pointer$#4.base| v_aws_hash_table_is_valid_~map.base_4) v_aws_hash_table_is_valid_~map.offset_4) 0)))) is different from true [2025-03-04 02:55:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-04 02:55:33,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:55:33,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362138383] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:55:33,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:55:33,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-04 02:55:33,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108706433] [2025-03-04 02:55:33,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:55:33,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:55:33,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:55:33,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:55:33,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2025-03-04 02:55:33,285 INFO L87 Difference]: Start difference. First operand 196 states and 236 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-04 02:55:37,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-04 02:55:38,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:55:38,533 INFO L93 Difference]: Finished difference Result 322 states and 398 transitions. [2025-03-04 02:55:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:55:38,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 153 [2025-03-04 02:55:38,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:55:38,535 INFO L225 Difference]: With dead ends: 322 [2025-03-04 02:55:38,535 INFO L226 Difference]: Without dead ends: 201 [2025-03-04 02:55:38,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=28, Invalid=105, Unknown=3, NotChecked=20, Total=156 [2025-03-04 02:55:38,537 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 224 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2025-03-04 02:55:38,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1152 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 1 Unknown, 224 Unchecked, 5.2s Time] [2025-03-04 02:55:38,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2025-03-04 02:55:38,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2025-03-04 02:55:38,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 132 states have (on average 1.1515151515151516) internal successors, (152), 133 states have internal predecessors, (152), 42 states have call successors, (42), 22 states have call predecessors, (42), 23 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2025-03-04 02:55:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 238 transitions. [2025-03-04 02:55:38,547 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 238 transitions. Word has length 153 [2025-03-04 02:55:38,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:55:38,548 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 238 transitions. [2025-03-04 02:55:38,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-04 02:55:38,548 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 238 transitions. [2025-03-04 02:55:38,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-04 02:55:38,549 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:55:38,549 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:55:38,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 02:55:38,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:55:38,750 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:55:38,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:55:38,750 INFO L85 PathProgramCache]: Analyzing trace with hash 494535637, now seen corresponding path program 1 times [2025-03-04 02:55:38,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:55:38,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811830419] [2025-03-04 02:55:38,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:55:38,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:55:42,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-04 02:55:42,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-04 02:55:42,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:55:42,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat