./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_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_array_list_push_back_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 ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:52:38,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:52:38,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 04:52:38,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:52:38,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:52:38,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:52:38,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:52:38,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:52:38,796 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:52:38,796 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:52:38,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:52:38,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:52:38,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:52:38,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:52:38,798 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:52:38,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:52:38,799 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:52:38,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:52:38,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:52:38,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:52:38,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:52:38,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:52:38,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:52:38,800 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:52:38,800 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:52:38,800 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:52:38,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:52:38,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:52:38,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:52:38,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:52:38,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:52:38,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:52:38,802 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:52:38,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:52:38,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:52:38,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:52:38,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:52:38,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:52:38,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:52:38,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:52:38,802 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 -> ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 [2025-02-06 04:52:39,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:52:39,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:52:39,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:52:39,075 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:52:39,075 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:52:39,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2025-02-06 04:52:40,305 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ab1a448c0/aa22770cfe404194a1004f73fa1822c3/FLAG8907cb3f5 [2025-02-06 04:52:40,893 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:52:40,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2025-02-06 04:52:40,932 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ab1a448c0/aa22770cfe404194a1004f73fa1822c3/FLAG8907cb3f5 [2025-02-06 04:52:40,950 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ab1a448c0/aa22770cfe404194a1004f73fa1822c3 [2025-02-06 04:52:40,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:52:40,954 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:52:40,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:52:40,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:52:40,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:52:40,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:52:40" (1/1) ... [2025-02-06 04:52:40,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58686f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:40, skipping insertion in model container [2025-02-06 04:52:40,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:52:40" (1/1) ... [2025-02-06 04:52:41,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:52:41,276 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2025-02-06 04:52:41,285 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2025-02-06 04:52:41,901 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,903 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,904 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,905 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,906 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,921 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,921 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,923 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,923 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,924 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:41,926 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,276 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:52:42,358 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:52:42,377 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2025-02-06 04:52:42,378 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2025-02-06 04:52:42,447 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,448 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,448 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,448 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,449 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,458 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,460 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,460 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,461 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,461 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,578 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,585 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:52:42,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2025-02-06 04:52:42,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:52:42,787 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:52:42,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42 WrapperNode [2025-02-06 04:52:42,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:52:42,790 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:52:42,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:52:42,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:52:42,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:42,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:42,922 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 13, statements flattened = 898 [2025-02-06 04:52:42,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:52:42,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:52:42,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:52:42,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:52:42,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:42,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:42,947 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:43,026 INFO L175 MemorySlicer]: Split 334 memory accesses to 6 slices as follows [238, 2, 8, 74, 6, 6]. 71 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 5, 10, 1, 0]. The 241 writes are split as follows [232, 0, 0, 6, 1, 2]. [2025-02-06 04:52:43,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:43,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:43,073 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:43,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:43,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:43,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:43,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:52:43,107 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:52:43,107 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:52:43,107 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:52:43,112 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (1/1) ... [2025-02-06 04:52:43,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:52:43,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:52:43,146 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 04:52:43,148 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 04:52:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 04:52:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 04:52:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 04:52:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 04:52:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 04:52:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 04:52:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 04:52:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-02-06 04:52:43,170 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-02-06 04:52:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:52:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:52:43,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:52:43,172 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 04:52:43,172 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 04:52:43,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-06 04:52:43,173 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:52:43,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 04:52:43,173 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-06 04:52:43,173 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 04:52:43,173 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 04:52:43,173 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 04:52:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-06 04:52:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-02-06 04:52:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 04:52:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 04:52:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-06 04:52:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-02-06 04:52:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 04:52:43,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 04:52:43,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 04:52:43,177 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 04:52:43,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 04:52:43,177 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:52:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:52:43,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:52:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:52:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:52:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:52:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:52:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:52:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:52:43,533 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:52:43,535 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:52:43,578 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 04:52:43,630 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 04:52:43,659 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 04:52:43,690 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-02-06 04:52:43,791 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-06 04:52:43,797 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 04:52:43,815 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-02-06 04:52:43,841 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7391: havoc #t~ret681.base, #t~ret681.offset; [2025-02-06 04:52:43,870 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2615: havoc #t~ret59#1; [2025-02-06 04:52:49,386 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7535: havoc aws_array_list_ensure_capacity_#t~ret764#1; [2025-02-06 04:52:49,387 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7412: 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; [2025-02-06 04:52:49,387 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7513: call ULTIMATE.dealloc(aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset);havoc aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset; [2025-02-06 04:52:49,387 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7522: havoc aws_array_list_ensure_capacity_#t~ret757#1; [2025-02-06 04:52:49,387 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3321: havoc aws_array_list_push_back_#t~ret166#1; [2025-02-06 04:52:49,524 INFO L? ?]: Removed 190 outVars from TransFormulas that were not future-live. [2025-02-06 04:52:49,524 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:52:49,538 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:52:49,538 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:52:49,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:52:49 BoogieIcfgContainer [2025-02-06 04:52:49,539 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:52:49,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:52:49,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:52:49,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:52:49,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:52:40" (1/3) ... [2025-02-06 04:52:49,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b62f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:52:49, skipping insertion in model container [2025-02-06 04:52:49,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:52:42" (2/3) ... [2025-02-06 04:52:49,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b62f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:52:49, skipping insertion in model container [2025-02-06 04:52:49,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:52:49" (3/3) ... [2025-02-06 04:52:49,548 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_push_back_harness.i [2025-02-06 04:52:49,561 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:52:49,563 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_push_back_harness.i that has 23 procedures, 306 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 04:52:49,634 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:52:49,647 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;@52f13388, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:52:49,648 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 04:52:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 306 states, 179 states have (on average 1.217877094972067) internal successors, (218), 180 states have internal predecessors, (218), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2025-02-06 04:52:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 04:52:49,667 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:52:49,667 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:49,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:52:49,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:52:49,674 INFO L85 PathProgramCache]: Analyzing trace with hash 554003197, now seen corresponding path program 1 times [2025-02-06 04:52:49,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:52:49,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360934417] [2025-02-06 04:52:49,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:52:49,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:52:54,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 04:52:54,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 04:52:54,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:52:54,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:52:55,531 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2025-02-06 04:52:55,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:52:55,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360934417] [2025-02-06 04:52:55,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360934417] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:52:55,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087338376] [2025-02-06 04:52:55,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:52:55,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:52:55,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:52:55,541 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 04:52:55,542 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 04:53:00,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 04:53:01,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 04:53:01,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:01,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:01,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 04:53:01,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:53:01,099 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2025-02-06 04:53:01,099 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:53:01,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087338376] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:01,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:53:01,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 04:53:01,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951420244] [2025-02-06 04:53:01,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:01,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 04:53:01,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:01,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 04:53:01,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:53:01,125 INFO L87 Difference]: Start difference. First operand has 306 states, 179 states have (on average 1.217877094972067) internal successors, (218), 180 states have internal predecessors, (218), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 04:53:01,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:01,187 INFO L93 Difference]: Finished difference Result 605 states and 900 transitions. [2025-02-06 04:53:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 04:53:01,189 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 135 [2025-02-06 04:53:01,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:01,198 INFO L225 Difference]: With dead ends: 605 [2025-02-06 04:53:01,198 INFO L226 Difference]: Without dead ends: 301 [2025-02-06 04:53:01,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 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 04:53:01,205 INFO L435 NwaCegarLoop]: 422 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, 422 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:01,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 04:53:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2025-02-06 04:53:01,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2025-02-06 04:53:01,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 175 states have (on average 1.2114285714285715) internal successors, (212), 176 states have internal predecessors, (212), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2025-02-06 04:53:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 417 transitions. [2025-02-06 04:53:01,276 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 417 transitions. Word has length 135 [2025-02-06 04:53:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:01,276 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 417 transitions. [2025-02-06 04:53:01,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 04:53:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 417 transitions. [2025-02-06 04:53:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 04:53:01,281 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:01,281 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:53:01,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 04:53:01,482 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 04:53:01,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:01,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:01,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1547041216, now seen corresponding path program 1 times [2025-02-06 04:53:01,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:01,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849633885] [2025-02-06 04:53:01,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:01,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:05,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 04:53:05,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 04:53:05,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:05,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:06,938 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2025-02-06 04:53:06,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:06,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849633885] [2025-02-06 04:53:06,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849633885] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:53:06,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738360892] [2025-02-06 04:53:06,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:06,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:06,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:53:06,942 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 04:53:06,944 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 04:53:11,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 04:53:12,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 04:53:12,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:12,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:12,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 04:53:12,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:53:12,869 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-02-06 04:53:12,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:53:12,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738360892] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:12,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:53:12,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 04:53:12,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108567069] [2025-02-06 04:53:12,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:12,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:53:12,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:12,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:53:12,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 04:53:12,872 INFO L87 Difference]: Start difference. First operand 301 states and 417 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 04:53:17,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:17,184 INFO L93 Difference]: Finished difference Result 578 states and 821 transitions. [2025-02-06 04:53:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:53:17,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 135 [2025-02-06 04:53:17,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:17,190 INFO L225 Difference]: With dead ends: 578 [2025-02-06 04:53:17,190 INFO L226 Difference]: Without dead ends: 303 [2025-02-06 04:53:17,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-02-06 04:53:17,193 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 457 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:17,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1154 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-02-06 04:53:17,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-02-06 04:53:17,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2025-02-06 04:53:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 176 states have (on average 1.2102272727272727) internal successors, (213), 178 states have internal predecessors, (213), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (121), 102 states have call predecessors, (121), 102 states have call successors, (121) [2025-02-06 04:53:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 437 transitions. [2025-02-06 04:53:17,233 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 437 transitions. Word has length 135 [2025-02-06 04:53:17,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:17,234 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 437 transitions. [2025-02-06 04:53:17,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 04:53:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 437 transitions. [2025-02-06 04:53:17,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-02-06 04:53:17,238 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:17,239 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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] [2025-02-06 04:53:17,257 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 04:53:17,443 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 04:53:17,443 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:17,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:17,444 INFO L85 PathProgramCache]: Analyzing trace with hash 878067400, now seen corresponding path program 1 times [2025-02-06 04:53:17,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:17,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580192522] [2025-02-06 04:53:17,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:17,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:21,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-06 04:53:21,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-06 04:53:21,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:21,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2025-02-06 04:53:23,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:23,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580192522] [2025-02-06 04:53:23,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580192522] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:53:23,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196855510] [2025-02-06 04:53:23,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:23,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:23,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:53:23,363 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 04:53:23,365 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 04:53:27,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-06 04:53:28,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-06 04:53:28,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:28,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:28,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 4534 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 04:53:28,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:53:29,482 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-02-06 04:53:29,483 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:53:29,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196855510] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:29,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:53:29,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-02-06 04:53:29,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651468531] [2025-02-06 04:53:29,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:29,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:53:29,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:29,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:53:29,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 04:53:29,485 INFO L87 Difference]: Start difference. First operand 303 states and 437 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 04:53:34,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:34,471 INFO L93 Difference]: Finished difference Result 554 states and 799 transitions. [2025-02-06 04:53:34,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:53:34,472 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 165 [2025-02-06 04:53:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:34,476 INFO L225 Difference]: With dead ends: 554 [2025-02-06 04:53:34,476 INFO L226 Difference]: Without dead ends: 303 [2025-02-06 04:53:34,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-02-06 04:53:34,479 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 522 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:34,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1397 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-02-06 04:53:34,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-02-06 04:53:34,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2025-02-06 04:53:34,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 176 states have (on average 1.2102272727272727) internal successors, (213), 178 states have internal predecessors, (213), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (118), 102 states have call predecessors, (118), 102 states have call successors, (118) [2025-02-06 04:53:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 434 transitions. [2025-02-06 04:53:34,510 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 434 transitions. Word has length 165 [2025-02-06 04:53:34,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:34,512 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 434 transitions. [2025-02-06 04:53:34,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 04:53:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 434 transitions. [2025-02-06 04:53:34,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-02-06 04:53:34,517 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:34,517 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:53:34,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 04:53:34,717 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 04:53:34,718 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:34,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:34,718 INFO L85 PathProgramCache]: Analyzing trace with hash 914880142, now seen corresponding path program 2 times [2025-02-06 04:53:34,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:34,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541969912] [2025-02-06 04:53:34,719 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:53:34,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:38,454 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 180 statements into 2 equivalence classes. [2025-02-06 04:53:39,117 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 180 of 180 statements. [2025-02-06 04:53:39,117 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 04:53:39,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:41,337 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2025-02-06 04:53:41,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:41,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541969912] [2025-02-06 04:53:41,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541969912] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:41,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:53:41,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 04:53:41,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485417525] [2025-02-06 04:53:41,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:41,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 04:53:41,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:41,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 04:53:41,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 04:53:41,340 INFO L87 Difference]: Start difference. First operand 303 states and 434 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 04:53:44,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:44,511 INFO L93 Difference]: Finished difference Result 560 states and 804 transitions. [2025-02-06 04:53:44,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:53:44,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 180 [2025-02-06 04:53:44,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:44,516 INFO L225 Difference]: With dead ends: 560 [2025-02-06 04:53:44,516 INFO L226 Difference]: Without dead ends: 315 [2025-02-06 04:53:44,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 04:53:44,518 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 185 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:44,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 2360 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-02-06 04:53:44,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2025-02-06 04:53:44,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2025-02-06 04:53:44,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 182 states have (on average 1.2087912087912087) internal successors, (220), 184 states have internal predecessors, (220), 108 states have call successors, (108), 23 states have call predecessors, (108), 24 states have return successors, (123), 107 states have call predecessors, (123), 107 states have call successors, (123) [2025-02-06 04:53:44,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 451 transitions. [2025-02-06 04:53:44,543 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 451 transitions. Word has length 180 [2025-02-06 04:53:44,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:44,544 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 451 transitions. [2025-02-06 04:53:44,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 04:53:44,544 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 451 transitions. [2025-02-06 04:53:44,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-02-06 04:53:44,546 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:44,547 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:53:44,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:53:44,547 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:44,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:44,548 INFO L85 PathProgramCache]: Analyzing trace with hash -813591064, now seen corresponding path program 1 times [2025-02-06 04:53:44,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:44,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661063468] [2025-02-06 04:53:44,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:44,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:48,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-02-06 04:53:48,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-02-06 04:53:48,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:48,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2025-02-06 04:53:50,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:50,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661063468] [2025-02-06 04:53:50,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661063468] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:50,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:53:50,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 04:53:50,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131109284] [2025-02-06 04:53:50,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:50,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:53:50,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:50,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:53:50,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:53:50,600 INFO L87 Difference]: Start difference. First operand 315 states and 451 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-06 04:53:51,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:51,111 INFO L93 Difference]: Finished difference Result 599 states and 860 transitions. [2025-02-06 04:53:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:53:51,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 210 [2025-02-06 04:53:51,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:51,117 INFO L225 Difference]: With dead ends: 599 [2025-02-06 04:53:51,118 INFO L226 Difference]: Without dead ends: 333 [2025-02-06 04:53:51,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 04:53:51,123 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 6 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:51,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2466 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 04:53:51,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-02-06 04:53:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 329. [2025-02-06 04:53:51,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 193 states have internal predecessors, (230), 112 states have call successors, (112), 23 states have call predecessors, (112), 25 states have return successors, (129), 112 states have call predecessors, (129), 111 states have call successors, (129) [2025-02-06 04:53:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 471 transitions. [2025-02-06 04:53:51,162 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 471 transitions. Word has length 210 [2025-02-06 04:53:51,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:51,162 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 471 transitions. [2025-02-06 04:53:51,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-06 04:53:51,164 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 471 transitions. [2025-02-06 04:53:51,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-02-06 04:53:51,166 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:51,167 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:53:51,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 04:53:51,167 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:51,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:51,168 INFO L85 PathProgramCache]: Analyzing trace with hash -298070615, now seen corresponding path program 1 times [2025-02-06 04:53:51,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:51,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650106164] [2025-02-06 04:53:51,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:51,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:54,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-02-06 04:53:54,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-02-06 04:53:54,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:54,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:57,507 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2025-02-06 04:53:57,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:57,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650106164] [2025-02-06 04:53:57,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650106164] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:57,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:53:57,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 04:53:57,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858955376] [2025-02-06 04:53:57,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:57,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 04:53:57,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:57,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 04:53:57,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 04:53:57,509 INFO L87 Difference]: Start difference. First operand 329 states and 471 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 04:53:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:58,256 INFO L93 Difference]: Finished difference Result 604 states and 865 transitions. [2025-02-06 04:53:58,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 04:53:58,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 210 [2025-02-06 04:53:58,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:58,262 INFO L225 Difference]: With dead ends: 604 [2025-02-06 04:53:58,262 INFO L226 Difference]: Without dead ends: 341 [2025-02-06 04:53:58,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 04:53:58,266 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 7 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:58,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2873 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 04:53:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2025-02-06 04:53:58,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 335. [2025-02-06 04:53:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 194 states have (on average 1.2010309278350515) internal successors, (233), 196 states have internal predecessors, (233), 115 states have call successors, (115), 23 states have call predecessors, (115), 25 states have return successors, (132), 115 states have call predecessors, (132), 114 states have call successors, (132) [2025-02-06 04:53:58,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 480 transitions. [2025-02-06 04:53:58,295 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 480 transitions. Word has length 210 [2025-02-06 04:53:58,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:58,295 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 480 transitions. [2025-02-06 04:53:58,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-06 04:53:58,295 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 480 transitions. [2025-02-06 04:53:58,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-02-06 04:53:58,300 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:58,300 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:53:58,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:53:58,300 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:58,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:58,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1483429320, now seen corresponding path program 1 times [2025-02-06 04:53:58,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:58,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897243498] [2025-02-06 04:53:58,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:58,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:54:01,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes.