./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:33:04,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:33:04,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:33:04,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:33:04,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:33:04,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:33:04,875 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:33:04,875 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:33:04,876 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:33:04,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:33:04,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:33:04,876 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:33:04,876 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:33:04,877 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:33:04,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:33:04,877 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2025-03-04 02:33:05,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:33:05,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:33:05,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:33:05,136 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:33:05,137 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:33:05,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2025-03-04 02:33:06,476 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b3a5c93/94ad17dfc08f4da18c385b82a099f9f5/FLAG5efc12df6 [2025-03-04 02:33:06,965 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:33:06,967 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2025-03-04 02:33:06,999 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b3a5c93/94ad17dfc08f4da18c385b82a099f9f5/FLAG5efc12df6 [2025-03-04 02:33:07,019 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b3a5c93/94ad17dfc08f4da18c385b82a099f9f5 [2025-03-04 02:33:07,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:33:07,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:33:07,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:33:07,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:33:07,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:33:07,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:33:07" (1/1) ... [2025-03-04 02:33:07,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248a7b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:07, skipping insertion in model container [2025-03-04 02:33:07,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:33:07" (1/1) ... [2025-03-04 02:33:07,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:33:07,343 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2025-03-04 02:33:07,350 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2025-03-04 02:33:08,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,344 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,345 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,346 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,355 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,356 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,357 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,358 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,359 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,360 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,360 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,360 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,803 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,803 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:33:08,904 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:33:08,916 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2025-03-04 02:33:08,916 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2025-03-04 02:33:08,984 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,990 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:08,999 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,000 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,000 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,003 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,003 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,003 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,114 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,115 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,122 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,131 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2025-03-04 02:33:09,157 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:09,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:33:09,326 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:33:09,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09 WrapperNode [2025-03-04 02:33:09,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:33:09,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:33:09,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:33:09,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:33:09,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,453 INFO L138 Inliner]: procedures = 680, calls = 1679, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 812 [2025-03-04 02:33:09,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:33:09,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:33:09,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:33:09,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:33:09,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,556 INFO L175 MemorySlicer]: Split 328 memory accesses to 7 slices as follows [238, 2, 6, 9, 6, 65, 2]. 73 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 5, 1, 10, 0]. The 242 writes are split as follows [232, 0, 2, 1, 1, 5, 1]. [2025-03-04 02:33:09,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,583 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:33:09,604 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:33:09,604 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:33:09,604 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:33:09,608 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (1/1) ... [2025-03-04 02:33:09,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:33:09,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:09,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 02:33:09,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 02:33:09,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:33:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 02:33:09,681 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 02:33:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 02:33:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 02:33:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:33:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:33:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-03-04 02:33:09,682 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-03-04 02:33:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:33:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:33:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:33:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:33:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:33:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:33:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:33:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-04 02:33:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:33:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:33:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:33:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:33:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:33:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-04 02:33:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-04 02:33:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:33:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-04 02:33:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-03-04 02:33:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-04 02:33:09,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:33:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:33:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:33:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:33:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:33:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:33:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:33:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:33:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:33:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:33:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-04 02:33:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-04 02:33:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2025-03-04 02:33:09,687 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:33:09,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:33:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:33:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:33:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:33:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:33:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:33:10,009 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:33:10,012 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:33:10,061 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 02:33:10,134 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 02:33:10,160 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-03-04 02:33:10,273 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7518: call ULTIMATE.dealloc(~#necessary_size~0#1.base, ~#necessary_size~0#1.offset);havoc ~#necessary_size~0#1.base, ~#necessary_size~0#1.offset; [2025-03-04 02:33:10,273 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7527: havoc #t~ret758#1; [2025-03-04 02:33:10,273 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7540: havoc #t~ret765#1; [2025-03-04 02:33:10,273 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7417: call ULTIMATE.dealloc(aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset);havoc aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset; [2025-03-04 02:33:10,280 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-03-04 02:33:10,348 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-04 02:33:10,351 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:33:10,363 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-03-04 02:33:10,370 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7396: havoc #t~ret682.base, #t~ret682.offset; [2025-03-04 02:33:10,392 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2615: havoc #t~ret59#1; [2025-03-04 02:33:15,911 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:33:15,988 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2025-03-04 02:33:15,988 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:33:16,001 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:33:16,001 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:33:16,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:33:16 BoogieIcfgContainer [2025-03-04 02:33:16,004 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:33:16,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:33:16,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:33:16,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:33:16,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:33:07" (1/3) ... [2025-03-04 02:33:16,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717a418a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:33:16, skipping insertion in model container [2025-03-04 02:33:16,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:09" (2/3) ... [2025-03-04 02:33:16,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717a418a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:33:16, skipping insertion in model container [2025-03-04 02:33:16,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:33:16" (3/3) ... [2025-03-04 02:33:16,014 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2025-03-04 02:33:16,029 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:33:16,031 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_ensure_capacity_harness.i that has 22 procedures, 243 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-04 02:33:16,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:33:16,099 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;@1f97591b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:33:16,100 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:33:16,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 243 states, 147 states have (on average 1.2040816326530612) internal successors, (177), 148 states have internal predecessors, (177), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2025-03-04 02:33:16,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 02:33:16,113 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:33:16,114 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:33:16,115 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:33:16,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:33:16,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1658323448, now seen corresponding path program 1 times [2025-03-04 02:33:16,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:33:16,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62229828] [2025-03-04 02:33:16,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:16,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:33:20,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:21,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:21,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:21,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:21,962 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-04 02:33:21,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:33:21,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62229828] [2025-03-04 02:33:21,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62229828] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:33:21,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364839978] [2025-03-04 02:33:21,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:21,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:33:21,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:21,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:33:21,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:33:26,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:27,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:27,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:27,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:27,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 4265 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:33:27,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:33:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-04 02:33:27,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:33:27,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364839978] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:33:27,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:33:27,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:33:27,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087327953] [2025-03-04 02:33:27,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:33:27,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:33:27,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:33:27,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:33:27,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:33:27,391 INFO L87 Difference]: Start difference. First operand has 243 states, 147 states have (on average 1.2040816326530612) internal successors, (177), 148 states have internal predecessors, (177), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-04 02:33:27,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:33:27,445 INFO L93 Difference]: Finished difference Result 479 states and 682 transitions. [2025-03-04 02:33:27,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:33:27,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2025-03-04 02:33:27,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:33:27,454 INFO L225 Difference]: With dead ends: 479 [2025-03-04 02:33:27,457 INFO L226 Difference]: Without dead ends: 232 [2025-03-04 02:33:27,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:33:27,466 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 02:33:27,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:33:27,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-03-04 02:33:27,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2025-03-04 02:33:27,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 138 states have (on average 1.181159420289855) internal successors, (163), 140 states have internal predecessors, (163), 73 states have call successors, (73), 21 states have call predecessors, (73), 20 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-04 02:33:27,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 306 transitions. [2025-03-04 02:33:27,528 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 306 transitions. Word has length 87 [2025-03-04 02:33:27,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:33:27,530 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 306 transitions. [2025-03-04 02:33:27,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-04 02:33:27,531 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 306 transitions. [2025-03-04 02:33:27,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 02:33:27,534 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:33:27,535 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:33:27,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:33:27,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 02:33:27,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:33:27,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:33:27,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1756555557, now seen corresponding path program 1 times [2025-03-04 02:33:27,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:33:27,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109854717] [2025-03-04 02:33:27,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:27,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:33:31,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:31,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:31,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:31,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:33,081 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-04 02:33:33,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:33:33,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109854717] [2025-03-04 02:33:33,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109854717] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:33:33,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137862676] [2025-03-04 02:33:33,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:33,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:33:33,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:33,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:33:33,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:33:37,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:38,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:38,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:38,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:38,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 4265 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 02:33:38,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:33:39,058 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 02:33:39,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:33:39,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137862676] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:33:39,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:33:39,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 02:33:39,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396280616] [2025-03-04 02:33:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:33:39,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:33:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:33:39,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:33:39,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:33:39,061 INFO L87 Difference]: Start difference. First operand 232 states and 306 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-03-04 02:33:41,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:33:41,832 INFO L93 Difference]: Finished difference Result 440 states and 589 transitions. [2025-03-04 02:33:41,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:33:41,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 87 [2025-03-04 02:33:41,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:33:41,839 INFO L225 Difference]: With dead ends: 440 [2025-03-04 02:33:41,839 INFO L226 Difference]: Without dead ends: 234 [2025-03-04 02:33:41,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:33:41,842 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 316 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-03-04 02:33:41,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 998 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-03-04 02:33:41,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2025-03-04 02:33:41,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2025-03-04 02:33:41,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2025-03-04 02:33:41,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 317 transitions. [2025-03-04 02:33:41,868 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 317 transitions. Word has length 87 [2025-03-04 02:33:41,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:33:41,868 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 317 transitions. [2025-03-04 02:33:41,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-03-04 02:33:41,869 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 317 transitions. [2025-03-04 02:33:41,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-04 02:33:41,870 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:33:41,871 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:33:41,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 02:33:42,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 02:33:42,072 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:33:42,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:33:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1018411651, now seen corresponding path program 1 times [2025-03-04 02:33:42,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:33:42,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558244831] [2025-03-04 02:33:42,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:42,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:33:45,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 02:33:46,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 02:33:46,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:46,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-04 02:33:47,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:33:47,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558244831] [2025-03-04 02:33:47,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558244831] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:33:47,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091728792] [2025-03-04 02:33:47,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:47,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:33:47,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:47,594 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:33:47,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 02:33:51,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 02:33:52,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 02:33:52,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:52,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:52,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 4392 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:33:52,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:33:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-04 02:33:54,130 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:33:54,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091728792] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:33:54,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:33:54,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-04 02:33:54,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010451615] [2025-03-04 02:33:54,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:33:54,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:33:54,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:33:54,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:33:54,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-04 02:33:54,132 INFO L87 Difference]: Start difference. First operand 234 states and 317 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-04 02:33:59,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:33:59,673 INFO L93 Difference]: Finished difference Result 432 states and 583 transitions. [2025-03-04 02:33:59,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:33:59,674 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 102 [2025-03-04 02:33:59,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:33:59,677 INFO L225 Difference]: With dead ends: 432 [2025-03-04 02:33:59,677 INFO L226 Difference]: Without dead ends: 234 [2025-03-04 02:33:59,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-03-04 02:33:59,680 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 368 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2025-03-04 02:33:59,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1297 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2025-03-04 02:33:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2025-03-04 02:33:59,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2025-03-04 02:33:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 142 states have internal predecessors, (164), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2025-03-04 02:33:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 311 transitions. [2025-03-04 02:33:59,697 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 311 transitions. Word has length 102 [2025-03-04 02:33:59,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:33:59,697 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 311 transitions. [2025-03-04 02:33:59,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-04 02:33:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 311 transitions. [2025-03-04 02:33:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-04 02:33:59,698 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:33:59,699 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2025-03-04 02:33:59,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 02:33:59,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:33:59,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:33:59,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:33:59,900 INFO L85 PathProgramCache]: Analyzing trace with hash 135369745, now seen corresponding path program 2 times [2025-03-04 02:33:59,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:33:59,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349737732] [2025-03-04 02:33:59,901 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 02:33:59,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:03,621 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-03-04 02:34:03,733 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 117 statements. [2025-03-04 02:34:03,733 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 02:34:03,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-03-04 02:34:04,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:04,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349737732] [2025-03-04 02:34:04,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349737732] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:04,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:34:04,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 02:34:04,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668892698] [2025-03-04 02:34:04,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:04,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:34:04,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:04,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:34:04,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:34:04,619 INFO L87 Difference]: Start difference. First operand 234 states and 311 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-04 02:34:04,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:04,822 INFO L93 Difference]: Finished difference Result 409 states and 535 transitions. [2025-03-04 02:34:04,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 02:34:04,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2025-03-04 02:34:04,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:04,826 INFO L225 Difference]: With dead ends: 409 [2025-03-04 02:34:04,826 INFO L226 Difference]: Without dead ends: 239 [2025-03-04 02:34:04,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:34:04,828 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 0 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 02:34:04,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1206 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 02:34:04,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2025-03-04 02:34:04,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2025-03-04 02:34:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 143 states have (on average 1.1748251748251748) internal successors, (168), 146 states have internal predecessors, (168), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2025-03-04 02:34:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 316 transitions. [2025-03-04 02:34:04,846 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 316 transitions. Word has length 117 [2025-03-04 02:34:04,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:04,847 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 316 transitions. [2025-03-04 02:34:04,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-04 02:34:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 316 transitions. [2025-03-04 02:34:04,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-04 02:34:04,850 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:04,850 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2025-03-04 02:34:04,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 02:34:04,853 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:04,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:04,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1509133710, now seen corresponding path program 1 times [2025-03-04 02:34:04,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:04,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246397699] [2025-03-04 02:34:04,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:04,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:08,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-04 02:34:08,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-04 02:34:08,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:08,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-04 02:34:10,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:10,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246397699] [2025-03-04 02:34:10,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246397699] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:34:10,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823929026] [2025-03-04 02:34:10,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:10,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:34:10,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:34:10,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:34:10,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 02:34:14,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-04 02:34:15,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-04 02:34:15,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:15,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:15,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 4523 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 02:34:15,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:34:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-04 02:34:17,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:34:17,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823929026] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:17,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:34:17,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2025-03-04 02:34:17,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135673554] [2025-03-04 02:34:17,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:17,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 02:34:17,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:17,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 02:34:17,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-04 02:34:17,423 INFO L87 Difference]: Start difference. First operand 239 states and 316 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2025-03-04 02:34:23,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:23,434 INFO L93 Difference]: Finished difference Result 439 states and 576 transitions. [2025-03-04 02:34:23,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 02:34:23,435 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 123 [2025-03-04 02:34:23,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:23,437 INFO L225 Difference]: With dead ends: 439 [2025-03-04 02:34:23,437 INFO L226 Difference]: Without dead ends: 237 [2025-03-04 02:34:23,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2025-03-04 02:34:23,440 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 378 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2025-03-04 02:34:23,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1517 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2025-03-04 02:34:23,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2025-03-04 02:34:23,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2025-03-04 02:34:23,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 142 states have (on average 1.1690140845070423) internal successors, (166), 144 states have internal predecessors, (166), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (71), 71 states have call predecessors, (71), 70 states have call successors, (71) [2025-03-04 02:34:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 310 transitions. [2025-03-04 02:34:23,453 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 310 transitions. Word has length 123 [2025-03-04 02:34:23,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:23,453 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 310 transitions. [2025-03-04 02:34:23,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2025-03-04 02:34:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 310 transitions. [2025-03-04 02:34:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-04 02:34:23,457 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:23,457 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:34:23,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 02:34:23,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:34:23,658 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:23,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:23,658 INFO L85 PathProgramCache]: Analyzing trace with hash -581940254, now seen corresponding path program 1 times [2025-03-04 02:34:23,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:23,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146497906] [2025-03-04 02:34:23,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:23,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:27,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-04 02:34:32,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-04 02:34:32,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:32,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 02:34:32,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922340929] [2025-03-04 02:34:32,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:32,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:34:32,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:34:32,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:34:32,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process