./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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_init_dynamic_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 32caf91a957359107cc7ee97dff15a48767c1a44f043f2c3cd059b67296b8bad --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:27:36,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:27:36,854 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:27:36,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:27:36,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:27:36,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:27:36,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:27:36,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:27:36,876 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:27:36,876 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:27:36,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:27:36,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:27:36,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:27:36,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:27:36,877 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:27:36,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:27:36,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:27:36,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:27:36,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:27:36,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:27:36,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:27:36,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:27:36,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:27:36,878 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:27:36,878 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:27:36,879 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:27:36,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:27:36,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:27:36,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:27:36,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:27:36,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:27:36,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:27:36,880 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:27:36,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:27:36,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:27:36,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:27:36,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:27:36,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:27:36,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:27:36,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:27:36,880 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 -> 32caf91a957359107cc7ee97dff15a48767c1a44f043f2c3cd059b67296b8bad [2025-02-08 01:27:37,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:27:37,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:27:37,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:27:37,129 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:27:37,129 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:27:37,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2025-02-08 01:27:38,293 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/34d62f8c3/a8efaa1a2a0b4192af21434195d58fc9/FLAGdf6e30edf [2025-02-08 01:27:38,771 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:27:38,772 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2025-02-08 01:27:38,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/34d62f8c3/a8efaa1a2a0b4192af21434195d58fc9/FLAGdf6e30edf [2025-02-08 01:27:38,815 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/34d62f8c3/a8efaa1a2a0b4192af21434195d58fc9 [2025-02-08 01:27:38,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:27:38,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:27:38,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:27:38,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:27:38,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:27:38,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:27:38" (1/1) ... [2025-02-08 01:27:38,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9758e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:38, skipping insertion in model container [2025-02-08 01:27:38,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:27:38" (1/1) ... [2025-02-08 01:27:38,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:27:39,072 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_init_dynamic_harness.i[4501,4514] [2025-02-08 01:27:39,077 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_init_dynamic_harness.i[4561,4574] [2025-02-08 01:27:39,585 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,586 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,586 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,587 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,588 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,602 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,602 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,604 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,604 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,605 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,605 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,606 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,845 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,850 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:39,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:27:39,923 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:27:39,934 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_init_dynamic_harness.i[4501,4514] [2025-02-08 01:27:39,939 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_init_dynamic_harness.i[4561,4574] [2025-02-08 01:27:40,008 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,013 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,023 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,023 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,024 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,024 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,025 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,025 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,026 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,026 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,121 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,132 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:27:40,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2025-02-08 01:27:40,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:27:40,291 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:27:40,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40 WrapperNode [2025-02-08 01:27:40,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:27:40,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:27:40,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:27:40,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:27:40,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,365 INFO L138 Inliner]: procedures = 679, calls = 1558, calls flagged for inlining = 47, calls inlined = 6, statements flattened = 596 [2025-02-08 01:27:40,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:27:40,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:27:40,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:27:40,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:27:40,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,379 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,428 INFO L175 MemorySlicer]: Split 277 memory accesses to 5 slices as follows [2, 238, 26, 6, 5]. 86 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 6, 5, 1, 5]. The 238 writes are split as follows [0, 232, 5, 1, 0]. [2025-02-08 01:27:40,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,462 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,474 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:27:40,480 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:27:40,480 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:27:40,480 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:27:40,480 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (1/1) ... [2025-02-08 01:27:40,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:27:40,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:40,508 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) [2025-02-08 01:27:40,513 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 [2025-02-08 01:27:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-02-08 01:27:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-02-08 01:27:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:27:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:27:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:27:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:27:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:27:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-02-08 01:27:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-02-08 01:27:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:27:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:27:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:27:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:27:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:27:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:27:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:27:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:27:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:27:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:27:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:27:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-02-08 01:27:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:27:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:27:40,533 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:27:40,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:27:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:27:40,755 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:27:40,757 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:27:40,796 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:27:40,822 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:27:40,848 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:27:40,880 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-02-08 01:27:40,929 INFO L1324 $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; [2025-02-08 01:27:40,936 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:27:40,942 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-02-08 01:27:46,202 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3226: aws_array_list_init_dynamic_#res#1 := -1;call ULTIMATE.dealloc(aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset);havoc aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset; [2025-02-08 01:27:46,202 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3226-2: SUMMARY for call aws_array_list_init_dynamic_#t~ret125#1 := aws_is_mem_zeroed(aws_array_list_init_dynamic_~list#1.base, aws_array_list_init_dynamic_~list#1.offset, 40); srcloc: null [2025-02-08 01:27:46,203 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3226-1: SUMMARY for call __VERIFIER_assert((if 0 == aws_array_list_init_dynamic_#t~ret125#1 % 256 then 0 else 1)); srcloc: null [2025-02-08 01:27:46,203 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3202: call ULTIMATE.dealloc(aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset);havoc aws_array_list_init_dynamic_~#allocation_size~0#1.base, aws_array_list_init_dynamic_~#allocation_size~0#1.offset; [2025-02-08 01:27:46,254 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2025-02-08 01:27:46,254 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:27:46,264 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:27:46,265 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:27:46,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:27:46 BoogieIcfgContainer [2025-02-08 01:27:46,266 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:27:46,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:27:46,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:27:46,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:27:46,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:27:38" (1/3) ... [2025-02-08 01:27:46,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2172bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:27:46, skipping insertion in model container [2025-02-08 01:27:46,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:27:40" (2/3) ... [2025-02-08 01:27:46,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2172bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:27:46, skipping insertion in model container [2025-02-08 01:27:46,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:27:46" (3/3) ... [2025-02-08 01:27:46,274 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_dynamic_harness.i [2025-02-08 01:27:46,283 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:27:46,284 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_init_dynamic_harness.i that has 20 procedures, 153 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2025-02-08 01:27:46,331 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:27:46,340 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;@228ceb17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:27:46,342 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:27:46,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 84 states have (on average 1.2380952380952381) internal successors, (104), 88 states have internal predecessors, (104), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-02-08 01:27:46,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-02-08 01:27:46,353 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:46,353 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-02-08 01:27:46,353 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:46,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:46,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1518852137, now seen corresponding path program 1 times [2025-02-08 01:27:46,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:46,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145175629] [2025-02-08 01:27:46,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:46,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:27:50,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-02-08 01:27:51,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-02-08 01:27:51,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:51,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-02-08 01:27:51,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:27:51,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145175629] [2025-02-08 01:27:51,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145175629] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:27:51,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951482394] [2025-02-08 01:27:51,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:51,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:27:51,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:27:51,662 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) [2025-02-08 01:27:51,666 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 [2025-02-08 01:27:55,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-02-08 01:27:56,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-02-08 01:27:56,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:27:56,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:27:56,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 3988 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:27:56,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:27:56,432 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-02-08 01:27:56,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:27:56,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951482394] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:27:56,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:27:56,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:27:56,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290401926] [2025-02-08 01:27:56,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:27:56,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:27:56,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:27:56,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:27:56,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:27:56,460 INFO L87 Difference]: Start difference. First operand has 137 states, 84 states have (on average 1.2380952380952381) internal successors, (104), 88 states have internal predecessors, (104), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-08 01:27:56,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:27:56,488 INFO L93 Difference]: Finished difference Result 263 states and 349 transitions. [2025-02-08 01:27:56,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:27:56,489 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 62 [2025-02-08 01:27:56,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:27:56,494 INFO L225 Difference]: With dead ends: 263 [2025-02-08 01:27:56,494 INFO L226 Difference]: Without dead ends: 128 [2025-02-08 01:27:56,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:27:56,498 INFO L435 NwaCegarLoop]: 168 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, 168 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 [2025-02-08 01:27:56,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:27:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2025-02-08 01:27:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2025-02-08 01:27:56,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 79 states have (on average 1.1645569620253164) internal successors, (92), 81 states have internal predecessors, (92), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-08 01:27:56,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 156 transitions. [2025-02-08 01:27:56,526 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 156 transitions. Word has length 62 [2025-02-08 01:27:56,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:27:56,527 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 156 transitions. [2025-02-08 01:27:56,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-08 01:27:56,527 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 156 transitions. [2025-02-08 01:27:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-02-08 01:27:56,531 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:27:56,531 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-02-08 01:27:56,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:27:56,736 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 [2025-02-08 01:27:56,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:27:56,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:27:56,737 INFO L85 PathProgramCache]: Analyzing trace with hash 236885480, now seen corresponding path program 1 times [2025-02-08 01:27:56,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:27:56,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788073803] [2025-02-08 01:27:56,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:27:56,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:00,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-08 01:28:01,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-08 01:28:01,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:01,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-02-08 01:28:02,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:02,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788073803] [2025-02-08 01:28:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788073803] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:28:02,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:28:02,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:28:02,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174428683] [2025-02-08 01:28:02,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:28:02,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:28:02,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:02,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:28:02,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:28:02,209 INFO L87 Difference]: Start difference. First operand 128 states and 156 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 01:28:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:02,299 INFO L93 Difference]: Finished difference Result 237 states and 286 transitions. [2025-02-08 01:28:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:28:02,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2025-02-08 01:28:02,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:02,302 INFO L225 Difference]: With dead ends: 237 [2025-02-08 01:28:02,302 INFO L226 Difference]: Without dead ends: 129 [2025-02-08 01:28:02,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:28:02,303 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:02,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 460 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:28:02,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2025-02-08 01:28:02,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2025-02-08 01:28:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 80 states have (on average 1.1625) internal successors, (93), 82 states have internal predecessors, (93), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-08 01:28:02,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 157 transitions. [2025-02-08 01:28:02,320 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 157 transitions. Word has length 69 [2025-02-08 01:28:02,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:02,320 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 157 transitions. [2025-02-08 01:28:02,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 01:28:02,320 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 157 transitions. [2025-02-08 01:28:02,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-08 01:28:02,321 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:02,321 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2025-02-08 01:28:02,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:28:02,321 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:02,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:02,322 INFO L85 PathProgramCache]: Analyzing trace with hash -244110695, now seen corresponding path program 1 times [2025-02-08 01:28:02,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:02,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715150787] [2025-02-08 01:28:02,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:02,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:06,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-08 01:28:06,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 01:28:06,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:06,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-02-08 01:28:07,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:07,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715150787] [2025-02-08 01:28:07,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715150787] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:28:07,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312733872] [2025-02-08 01:28:07,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:28:07,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:07,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:07,715 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) [2025-02-08 01:28:07,720 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 [2025-02-08 01:28:12,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-08 01:28:12,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 01:28:12,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:28:12,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:12,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 4033 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:28:12,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:28:13,025 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-02-08 01:28:13,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:28:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-02-08 01:28:13,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312733872] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 01:28:13,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 01:28:13,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-02-08 01:28:13,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485322266] [2025-02-08 01:28:13,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 01:28:13,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 01:28:13,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:28:13,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 01:28:13,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-02-08 01:28:13,959 INFO L87 Difference]: Start difference. First operand 129 states and 157 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-08 01:28:14,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:28:14,356 INFO L93 Difference]: Finished difference Result 242 states and 293 transitions. [2025-02-08 01:28:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:28:14,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 70 [2025-02-08 01:28:14,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:28:14,357 INFO L225 Difference]: With dead ends: 242 [2025-02-08 01:28:14,358 INFO L226 Difference]: Without dead ends: 132 [2025-02-08 01:28:14,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2025-02-08 01:28:14,359 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 01:28:14,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 614 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 01:28:14,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2025-02-08 01:28:14,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2025-02-08 01:28:14,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 83 states have (on average 1.1566265060240963) internal successors, (96), 85 states have internal predecessors, (96), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-08 01:28:14,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 160 transitions. [2025-02-08 01:28:14,376 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 160 transitions. Word has length 70 [2025-02-08 01:28:14,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:28:14,376 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 160 transitions. [2025-02-08 01:28:14,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-08 01:28:14,376 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 160 transitions. [2025-02-08 01:28:14,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-08 01:28:14,377 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:28:14,378 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 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] [2025-02-08 01:28:14,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 01:28:14,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:14,582 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:28:14,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:28:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1997096408, now seen corresponding path program 2 times [2025-02-08 01:28:14,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:28:14,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653160197] [2025-02-08 01:28:14,583 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:28:14,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:28:18,372 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-02-08 01:28:18,715 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-02-08 01:28:18,715 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 01:28:18,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:28:20,537 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-02-08 01:28:20,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:28:20,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653160197] [2025-02-08 01:28:20,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653160197] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:28:20,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119109187] [2025-02-08 01:28:20,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:28:20,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:28:20,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:28:20,539 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) [2025-02-08 01:28:20,541 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 [2025-02-08 01:28:24,719 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes.