./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8b8f2658d38f1d4b62f5a688e80bc5ee30c846710ec78d96c7425bfc1b2b470 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:12:19,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:12:19,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:12:19,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:12:19,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:12:19,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:12:19,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:12:19,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:12:19,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:12:19,747 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:12:19,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:12:19,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:12:19,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:12:19,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:12:19,747 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:12:19,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:12:19,748 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:12:19,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:12:19,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:12:19,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:12:19,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:12:19,750 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8b8f2658d38f1d4b62f5a688e80bc5ee30c846710ec78d96c7425bfc1b2b470 [2025-02-06 05:12:19,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:12:20,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:12:20,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:12:20,010 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:12:20,010 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:12:20,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2025-02-06 05:12:21,123 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/387b45e09/2887fdff88b041b480ecf76de89ae46e/FLAGe23baf836 [2025-02-06 05:12:21,666 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:12:21,666 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2025-02-06 05:12:21,710 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/387b45e09/2887fdff88b041b480ecf76de89ae46e/FLAGe23baf836 [2025-02-06 05:12:21,728 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/387b45e09/2887fdff88b041b480ecf76de89ae46e [2025-02-06 05:12:21,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:12:21,732 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:12:21,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:12:21,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:12:21,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:12:21,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:12:21" (1/1) ... [2025-02-06 05:12:21,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1314a880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:21, skipping insertion in model container [2025-02-06 05:12:21,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:12:21" (1/1) ... [2025-02-06 05:12:21,826 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:12:22,083 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2025-02-06 05:12:22,092 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2025-02-06 05:12:23,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,015 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,023 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,028 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,029 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,030 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,031 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,032 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,807 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,808 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,832 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,833 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,852 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[228012,228025] [2025-02-06 05:12:23,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:12:23,874 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:12:23,884 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2025-02-06 05:12:23,888 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2025-02-06 05:12:23,924 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,929 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,930 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,930 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,931 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,931 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,931 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,932 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,932 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:23,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-02-06 05:12:24,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,139 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,139 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,146 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,148 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,148 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,148 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,149 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,150 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,150 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:24,166 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[228012,228025] [2025-02-06 05:12:24,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:12:24,317 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:12:24,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24 WrapperNode [2025-02-06 05:12:24,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:12:24,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:12:24,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:12:24,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:12:24,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,478 INFO L138 Inliner]: procedures = 763, calls = 2450, calls flagged for inlining = 70, calls inlined = 20, statements flattened = 867 [2025-02-06 05:12:24,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:12:24,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:12:24,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:12:24,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:12:24,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,496 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,560 INFO L175 MemorySlicer]: Split 315 memory accesses to 12 slices as follows [238, 2, 36, 1, 2, 6, 6, 9, 4, 5, 3, 3]. 76 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0]. The 249 writes are split as follows [232, 0, 3, 1, 1, 2, 2, 1, 3, 0, 1, 3]. [2025-02-06 05:12:24,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,608 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:12:24,644 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:12:24,644 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:12:24,644 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:12:24,645 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (1/1) ... [2025-02-06 05:12:24,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:12:24,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:24,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 05:12:24,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2025-02-06 05:12:24,701 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2025-02-06 05:12:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2025-02-06 05:12:24,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:12:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:12:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-06 05:12:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-06 05:12:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:12:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2025-02-06 05:12:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2025-02-06 05:12:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:12:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:12:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:12:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2025-02-06 05:12:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:12:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:12:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 05:12:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-06 05:12:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:12:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 05:12:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 05:12:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:12:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_find [2025-02-06 05:12:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_find [2025-02-06 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:12:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2025-02-06 05:12:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2025-02-06 05:12:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-02-06 05:12:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-06 05:12:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-06 05:12:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-06 05:12:25,069 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:12:25,072 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:12:25,109 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-06 05:12:25,150 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9136-1: assume false; [2025-02-06 05:12:25,150 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9136-1: assume !false; [2025-02-06 05:12:25,178 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:12:25,182 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:12:25,292 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9327: havoc #t~ret1201#1; [2025-02-06 05:12:25,315 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9410-1: assume false; [2025-02-06 05:12:25,315 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9410-1: assume !false; [2025-02-06 05:12:25,341 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7373: havoc uninterpreted_hasher_#t~ret689#1; [2025-02-06 05:12:25,342 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9097-1: assume false; [2025-02-06 05:12:25,342 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9097-1: assume !false; [2025-02-06 05:12:25,384 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-06 05:12:25,408 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-02-06 05:12:25,424 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7356: havoc uninterpreted_equals_assert_inputs_nonnull_#t~ret687#1; [2025-02-06 05:12:25,424 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7287: havoc nondet_compare_#t~ret677#1; [2025-02-06 05:12:25,424 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L262: havoc nondet_int_#t~nondet5#1; [2025-02-06 05:12:25,432 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9123: havoc #t~ret1140; [2025-02-06 05:12:25,446 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-06 05:12:25,455 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-06 05:12:30,508 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-02-06 05:12:30,509 INFO L1309 $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; [2025-02-06 05:12:30,509 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6843: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-02-06 05:12:30,577 INFO L? ?]: Removed 281 outVars from TransFormulas that were not future-live. [2025-02-06 05:12:30,578 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:12:30,593 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:12:30,593 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:12:30,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:12:30 BoogieIcfgContainer [2025-02-06 05:12:30,594 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:12:30,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:12:30,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:12:30,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:12:30,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:12:21" (1/3) ... [2025-02-06 05:12:30,599 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175bcb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:12:30, skipping insertion in model container [2025-02-06 05:12:30,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:24" (2/3) ... [2025-02-06 05:12:30,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175bcb61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:12:30, skipping insertion in model container [2025-02-06 05:12:30,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:12:30" (3/3) ... [2025-02-06 05:12:30,600 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_find_harness.i [2025-02-06 05:12:30,610 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:12:30,611 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_find_harness.i that has 23 procedures, 267 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-02-06 05:12:30,650 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:12:30,658 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;@16c7cfbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:12:30,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:12:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 267 states, 175 states have (on average 1.2514285714285713) internal successors, (219), 176 states have internal predecessors, (219), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2025-02-06 05:12:30,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-02-06 05:12:30,674 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:30,675 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:12:30,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:30,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:30,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1008788979, now seen corresponding path program 1 times [2025-02-06 05:12:30,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:30,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586175150] [2025-02-06 05:12:30,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:30,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:35,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:12:35,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:12:35,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:35,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2025-02-06 05:12:36,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:36,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586175150] [2025-02-06 05:12:36,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586175150] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:36,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071861578] [2025-02-06 05:12:36,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:36,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:36,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:36,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:12:36,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 05:12:40,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:12:40,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:12:40,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:40,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:41,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 4655 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:12:41,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:41,043 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2025-02-06 05:12:41,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:12:41,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071861578] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:12:41,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:12:41,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:12:41,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413078271] [2025-02-06 05:12:41,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:41,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:12:41,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:41,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:12:41,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:12:41,074 INFO L87 Difference]: Start difference. First operand has 267 states, 175 states have (on average 1.2514285714285713) internal successors, (219), 176 states have internal predecessors, (219), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-06 05:12:41,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:41,176 INFO L93 Difference]: Finished difference Result 528 states and 755 transitions. [2025-02-06 05:12:41,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:12:41,178 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 184 [2025-02-06 05:12:41,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:41,195 INFO L225 Difference]: With dead ends: 528 [2025-02-06 05:12:41,195 INFO L226 Difference]: Without dead ends: 260 [2025-02-06 05:12:41,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:12:41,206 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:12:41,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 343 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 05:12:41,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2025-02-06 05:12:41,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2025-02-06 05:12:41,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 169 states have (on average 1.2189349112426036) internal successors, (206), 170 states have internal predecessors, (206), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-02-06 05:12:41,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 341 transitions. [2025-02-06 05:12:41,267 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 341 transitions. Word has length 184 [2025-02-06 05:12:41,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:41,268 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 341 transitions. [2025-02-06 05:12:41,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-06 05:12:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 341 transitions. [2025-02-06 05:12:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-02-06 05:12:41,271 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:41,271 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:12:41,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 05:12:41,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 05:12:41,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:41,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:41,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1588939723, now seen corresponding path program 1 times [2025-02-06 05:12:41,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:41,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695451975] [2025-02-06 05:12:41,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:41,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:45,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:12:45,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:12:45,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:45,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2025-02-06 05:12:46,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:46,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695451975] [2025-02-06 05:12:46,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695451975] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:46,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147385359] [2025-02-06 05:12:46,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:46,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:46,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:46,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:12:46,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 05:12:50,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 05:12:51,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 05:12:51,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:51,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:51,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 4655 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-06 05:12:51,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:52,797 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-02-06 05:12:52,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 05:12:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2025-02-06 05:12:55,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147385359] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:55,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-06 05:12:55,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 8] total 13 [2025-02-06 05:12:55,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236876220] [2025-02-06 05:12:55,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:55,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:12:55,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:55,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:12:55,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-02-06 05:12:55,173 INFO L87 Difference]: Start difference. First operand 260 states and 341 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-02-06 05:12:55,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:55,839 INFO L93 Difference]: Finished difference Result 266 states and 346 transitions. [2025-02-06 05:12:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:12:55,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 184 [2025-02-06 05:12:55,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:55,843 INFO L225 Difference]: With dead ends: 266 [2025-02-06 05:12:55,843 INFO L226 Difference]: Without dead ends: 264 [2025-02-06 05:12:55,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2025-02-06 05:12:55,844 INFO L435 NwaCegarLoop]: 334 mSDtfsCounter, 4 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 05:12:55,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1319 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 05:12:55,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2025-02-06 05:12:55,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2025-02-06 05:12:55,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 172 states have (on average 1.2151162790697674) internal successors, (209), 173 states have internal predecessors, (209), 68 states have call successors, (68), 23 states have call predecessors, (68), 23 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-02-06 05:12:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 344 transitions. [2025-02-06 05:12:55,866 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 344 transitions. Word has length 184 [2025-02-06 05:12:55,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:55,867 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 344 transitions. [2025-02-06 05:12:55,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2025-02-06 05:12:55,867 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 344 transitions. [2025-02-06 05:12:55,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-06 05:12:55,870 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:55,870 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:12:55,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 05:12:56,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:56,071 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:56,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:56,072 INFO L85 PathProgramCache]: Analyzing trace with hash 677670977, now seen corresponding path program 1 times [2025-02-06 05:12:56,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:56,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416763995] [2025-02-06 05:12:56,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:56,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:59,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-06 05:13:00,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-06 05:13:00,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:00,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2025-02-06 05:13:01,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:13:01,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416763995] [2025-02-06 05:13:01,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416763995] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:13:01,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147013883] [2025-02-06 05:13:01,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:01,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:01,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:01,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:13:01,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 05:13:05,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-06 05:13:05,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-06 05:13:05,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:05,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:05,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 4690 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-02-06 05:13:05,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:13:06,876 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 [2025-02-06 05:13:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2025-02-06 05:13:08,750 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:13:08,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147013883] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:13:08,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:13:08,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2025-02-06 05:13:08,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926807287] [2025-02-06 05:13:08,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:13:08,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 05:13:08,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:13:08,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 05:13:08,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2025-02-06 05:13:08,752 INFO L87 Difference]: Start difference. First operand 264 states and 344 transitions. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2025-02-06 05:13:17,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:13:17,508 INFO L93 Difference]: Finished difference Result 566 states and 730 transitions. [2025-02-06 05:13:17,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 05:13:17,509 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 198 [2025-02-06 05:13:17,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:13:17,516 INFO L225 Difference]: With dead ends: 566 [2025-02-06 05:13:17,516 INFO L226 Difference]: Without dead ends: 323 [2025-02-06 05:13:17,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2025-02-06 05:13:17,519 INFO L435 NwaCegarLoop]: 360 mSDtfsCounter, 287 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:13:17,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 2267 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2025-02-06 05:13:17,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2025-02-06 05:13:17,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 320. [2025-02-06 05:13:17,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 212 states have (on average 1.2075471698113207) internal successors, (256), 214 states have internal predecessors, (256), 74 states have call successors, (74), 32 states have call predecessors, (74), 33 states have return successors, (75), 73 states have call predecessors, (75), 73 states have call successors, (75) [2025-02-06 05:13:17,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 405 transitions. [2025-02-06 05:13:17,550 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 405 transitions. Word has length 198 [2025-02-06 05:13:17,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:13:17,554 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 405 transitions. [2025-02-06 05:13:17,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2025-02-06 05:13:17,554 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 405 transitions. [2025-02-06 05:13:17,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-06 05:13:17,556 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:13:17,556 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:13:17,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 05:13:17,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:17,757 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:13:17,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:13:17,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1396538335, now seen corresponding path program 1 times [2025-02-06 05:13:17,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:13:17,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741165222] [2025-02-06 05:13:17,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:17,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:13:21,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-06 05:13:21,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-06 05:13:21,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:21,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2025-02-06 05:13:22,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:13:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741165222] [2025-02-06 05:13:22,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741165222] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:13:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071759086] [2025-02-06 05:13:22,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:22,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:22,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:22,477 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:13:22,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 05:13:26,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-06 05:13:27,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-06 05:13:27,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:27,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:27,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 4680 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 05:13:27,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:13:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2025-02-06 05:13:28,182 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:13:28,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071759086] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:13:28,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:13:28,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 05:13:28,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773713066] [2025-02-06 05:13:28,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:13:28,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:13:28,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:13:28,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:13:28,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:13:28,184 INFO L87 Difference]: Start difference. First operand 320 states and 405 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-02-06 05:13:30,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:13:30,325 INFO L93 Difference]: Finished difference Result 573 states and 737 transitions. [2025-02-06 05:13:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:13:30,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 198 [2025-02-06 05:13:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:13:30,328 INFO L225 Difference]: With dead ends: 573 [2025-02-06 05:13:30,328 INFO L226 Difference]: Without dead ends: 325 [2025-02-06 05:13:30,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:13:30,334 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 343 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-06 05:13:30,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1173 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-06 05:13:30,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2025-02-06 05:13:30,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 322. [2025-02-06 05:13:30,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 213 states have (on average 1.2065727699530517) internal successors, (257), 215 states have internal predecessors, (257), 75 states have call successors, (75), 32 states have call predecessors, (75), 33 states have return successors, (76), 74 states have call predecessors, (76), 74 states have call successors, (76) [2025-02-06 05:13:30,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 408 transitions. [2025-02-06 05:13:30,371 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 408 transitions. Word has length 198 [2025-02-06 05:13:30,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:13:30,371 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 408 transitions. [2025-02-06 05:13:30,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-02-06 05:13:30,372 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 408 transitions. [2025-02-06 05:13:30,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-02-06 05:13:30,374 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:13:30,374 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-06 05:13:30,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 05:13:30,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:30,575 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:13:30,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:13:30,575 INFO L85 PathProgramCache]: Analyzing trace with hash -262711487, now seen corresponding path program 1 times [2025-02-06 05:13:30,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:13:30,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096394738] [2025-02-06 05:13:30,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:30,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:13:34,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-02-06 05:13:34,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-02-06 05:13:34,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:34,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2025-02-06 05:13:35,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:13:35,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096394738] [2025-02-06 05:13:35,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096394738] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:13:35,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725142119] [2025-02-06 05:13:35,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:35,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:35,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:35,234 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:13:35,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 05:13:39,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-02-06 05:13:40,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-02-06 05:13:40,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:40,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:40,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 4738 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-02-06 05:13:40,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:13:41,242 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 [2025-02-06 05:13:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2025-02-06 05:13:43,582 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:13:43,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725142119] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:13:43,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:13:43,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2025-02-06 05:13:43,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341002735] [2025-02-06 05:13:43,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:13:43,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 05:13:43,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:13:43,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 05:13:43,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-02-06 05:13:43,583 INFO L87 Difference]: Start difference. First operand 322 states and 408 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 states have internal predecessors, (98), 5 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2025-02-06 05:13:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:13:55,040 INFO L93 Difference]: Finished difference Result 585 states and 756 transitions. [2025-02-06 05:13:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 05:13:55,041 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 states have internal predecessors, (98), 5 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) Word has length 210 [2025-02-06 05:13:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:13:55,048 INFO L225 Difference]: With dead ends: 585 [2025-02-06 05:13:55,048 INFO L226 Difference]: Without dead ends: 335 [2025-02-06 05:13:55,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2025-02-06 05:13:55,050 INFO L435 NwaCegarLoop]: 356 mSDtfsCounter, 269 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 2587 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:13:55,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 2587 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2025-02-06 05:13:55,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2025-02-06 05:13:55,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 324. [2025-02-06 05:13:55,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 214 states have (on average 1.205607476635514) internal successors, (258), 217 states have internal predecessors, (258), 75 states have call successors, (75), 32 states have call predecessors, (75), 34 states have return successors, (81), 74 states have call predecessors, (81), 74 states have call successors, (81) [2025-02-06 05:13:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 414 transitions. [2025-02-06 05:13:55,079 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 414 transitions. Word has length 210 [2025-02-06 05:13:55,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:13:55,080 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 414 transitions. [2025-02-06 05:13:55,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 states have internal predecessors, (98), 5 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2025-02-06 05:13:55,080 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 414 transitions. [2025-02-06 05:13:55,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2025-02-06 05:13:55,083 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:13:55,084 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-06 05:13:55,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 05:13:55,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:55,284 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:13:55,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:13:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1923688275, now seen corresponding path program 1 times [2025-02-06 05:13:55,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:13:55,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917398943] [2025-02-06 05:13:55,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:55,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms