./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_front_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_front_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 db08682c30aec752483be6a01f1f927a34d978b2784f151bbe405368492dd0de --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:50:22,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:50:22,895 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 04:50:22,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:50:22,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:50:22,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:50:22,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:50:22,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:50:22,941 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:50:22,941 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:50:22,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:50:22,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:50:22,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:50:22,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:50:22,942 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:50:22,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:50:22,943 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:50:22,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:50:22,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:50:22,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:50:22,944 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:50:22,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:50:22,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:50:22,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:50:22,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:50:22,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:50:22,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:50:22,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:50:22,944 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 -> db08682c30aec752483be6a01f1f927a34d978b2784f151bbe405368492dd0de [2025-02-06 04:50:23,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:50:23,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:50:23,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:50:23,218 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:50:23,219 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:50:23,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i [2025-02-06 04:50:24,538 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/09a2aa005/0013021ca93b498995fc7c1aecb0208b/FLAGf8c633a3f [2025-02-06 04:50:25,192 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:50:25,195 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i [2025-02-06 04:50:25,248 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/09a2aa005/0013021ca93b498995fc7c1aecb0208b/FLAGf8c633a3f [2025-02-06 04:50:25,269 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/09a2aa005/0013021ca93b498995fc7c1aecb0208b [2025-02-06 04:50:25,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:50:25,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:50:25,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:50:25,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:50:25,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:50:25,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:50:25" (1/1) ... [2025-02-06 04:50:25,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5deddda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:25, skipping insertion in model container [2025-02-06 04:50:25,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:50:25" (1/1) ... [2025-02-06 04:50:25,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:50:25,649 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_front_harness.i[4494,4507] [2025-02-06 04:50:25,657 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_front_harness.i[4554,4567] [2025-02-06 04:50:26,568 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,568 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,569 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,569 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,570 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,594 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,595 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,597 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,597 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,600 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,602 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,602 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:26,603 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,091 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,098 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:50:27,214 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:50:27,234 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_front_harness.i[4494,4507] [2025-02-06 04:50:27,235 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_front_harness.i[4554,4567] [2025-02-06 04:50:27,316 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,318 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,318 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,319 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,319 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,330 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,331 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,331 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,332 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,332 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,332 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,456 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,461 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:50:27,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7767-7778] [2025-02-06 04:50:27,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:50:27,691 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:50:27,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27 WrapperNode [2025-02-06 04:50:27,693 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:50:27,694 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:50:27,694 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:50:27,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:50:27,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:27,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:27,849 INFO L138 Inliner]: procedures = 680, calls = 1682, calls flagged for inlining = 53, calls inlined = 8, statements flattened = 662 [2025-02-06 04:50:27,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:50:27,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:50:27,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:50:27,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:50:27,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:27,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:27,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:27,948 INFO L175 MemorySlicer]: Split 314 memory accesses to 6 slices as follows [9, 6, 238, 2, 56, 3]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [5, 0, 6, 2, 10, 1]. The 239 writes are split as follows [1, 2, 232, 0, 3, 1]. [2025-02-06 04:50:27,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:27,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:28,002 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:28,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:28,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:28,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:28,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:50:28,045 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:50:28,045 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:50:28,045 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:50:28,046 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (1/1) ... [2025-02-06 04:50:28,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:50:28,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:50:28,090 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 04:50:28,099 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 04:50:28,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 04:50:28,118 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 04:50:28,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 04:50:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 04:50:28,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 04:50:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 04:50:28,119 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 04:50:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 04:50:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 04:50:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 04:50:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 04:50:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 04:50:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 04:50:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:50:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:50:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:50:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:50:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 04:50:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 04:50:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-06 04:50:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:50:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 04:50:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-06 04:50:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-06 04:50:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 04:50:28,121 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 04:50:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-06 04:50:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 04:50:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 04:50:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-06 04:50:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 04:50:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 04:50:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:50:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:50:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:50:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:50:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:50:28,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:50:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:50:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:50:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:50:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:50:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:50:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:50:28,481 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:50:28,483 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:50:28,524 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 04:50:28,562 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-06 04:50:28,589 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 04:50:28,652 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 04:50:28,749 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 04:50:28,752 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 04:50:28,772 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7388: havoc #t~ret687.base, #t~ret687.offset; [2025-02-06 04:50:34,260 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3342: havoc aws_array_list_front_#t~ret180#1; [2025-02-06 04:50:34,351 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2025-02-06 04:50:34,351 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:50:34,365 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:50:34,366 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:50:34,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:50:34 BoogieIcfgContainer [2025-02-06 04:50:34,366 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:50:34,374 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:50:34,374 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:50:34,378 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:50:34,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:50:25" (1/3) ... [2025-02-06 04:50:34,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ccc64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:50:34, skipping insertion in model container [2025-02-06 04:50:34,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:50:27" (2/3) ... [2025-02-06 04:50:34,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ccc64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:50:34, skipping insertion in model container [2025-02-06 04:50:34,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:50:34" (3/3) ... [2025-02-06 04:50:34,382 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_front_harness.i [2025-02-06 04:50:34,399 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:50:34,401 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_front_harness.i that has 18 procedures, 186 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 04:50:34,465 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:50:34,479 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;@5905c8fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:50:34,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 04:50:34,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 111 states have (on average 1.1981981981981982) internal successors, (133), 112 states have internal predecessors, (133), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-02-06 04:50:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-06 04:50:34,495 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:50:34,496 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 04:50:34,496 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:50:34,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:50:34,502 INFO L85 PathProgramCache]: Analyzing trace with hash -411417386, now seen corresponding path program 1 times [2025-02-06 04:50:34,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:50:34,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830894] [2025-02-06 04:50:34,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:50:34,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:50:39,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:50:39,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:50:39,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:50:39,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:50:40,338 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-02-06 04:50:40,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:50:40,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830894] [2025-02-06 04:50:40,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830894] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:50:40,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201248279] [2025-02-06 04:50:40,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:50:40,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:50:40,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:50:40,345 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 04:50:40,347 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 04:50:45,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:50:45,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:50:45,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:50:45,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:50:45,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 4252 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 04:50:45,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:50:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-02-06 04:50:45,728 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:50:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201248279] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:50:45,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:50:45,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 04:50:45,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589744469] [2025-02-06 04:50:45,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:50:45,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 04:50:45,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:50:45,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 04:50:45,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 04:50:45,754 INFO L87 Difference]: Start difference. First operand has 186 states, 111 states have (on average 1.1981981981981982) internal successors, (133), 112 states have internal predecessors, (133), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 04:50:45,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:50:45,792 INFO L93 Difference]: Finished difference Result 365 states and 519 transitions. [2025-02-06 04:50:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 04:50:45,793 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2025-02-06 04:50:45,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:50:45,801 INFO L225 Difference]: With dead ends: 365 [2025-02-06 04:50:45,801 INFO L226 Difference]: Without dead ends: 177 [2025-02-06 04:50:45,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 04:50:45,807 INFO L435 NwaCegarLoop]: 243 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, 243 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 04:50:45,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 04:50:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-02-06 04:50:45,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2025-02-06 04:50:45,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 105 states have internal predecessors, (121), 56 states have call successors, (56), 17 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-02-06 04:50:45,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 231 transitions. [2025-02-06 04:50:45,857 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 231 transitions. Word has length 129 [2025-02-06 04:50:45,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:50:45,857 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 231 transitions. [2025-02-06 04:50:45,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 04:50:45,858 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 231 transitions. [2025-02-06 04:50:45,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-06 04:50:45,861 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:50:45,861 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 04:50:45,875 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 04:50:46,062 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 04:50:46,062 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:50:46,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:50:46,063 INFO L85 PathProgramCache]: Analyzing trace with hash -381902376, now seen corresponding path program 1 times [2025-02-06 04:50:46,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:50:46,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518899133] [2025-02-06 04:50:46,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:50:46,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:50:50,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:50:50,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:50:50,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:50:50,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:50:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-02-06 04:50:53,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:50:53,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518899133] [2025-02-06 04:50:53,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518899133] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:50:53,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:50:53,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 04:50:53,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468840913] [2025-02-06 04:50:53,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:50:53,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:50:53,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:50:53,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:50:53,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:50:53,389 INFO L87 Difference]: Start difference. First operand 177 states and 231 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-06 04:50:53,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:50:53,908 INFO L93 Difference]: Finished difference Result 306 states and 403 transitions. [2025-02-06 04:50:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:50:53,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2025-02-06 04:50:53,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:50:53,911 INFO L225 Difference]: With dead ends: 306 [2025-02-06 04:50:53,912 INFO L226 Difference]: Without dead ends: 195 [2025-02-06 04:50:53,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 04:50:53,914 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 6 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1351 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 04:50:53,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1351 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 04:50:53,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2025-02-06 04:50:53,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2025-02-06 04:50:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 113 states have (on average 1.1592920353982301) internal successors, (131), 114 states have internal predecessors, (131), 60 states have call successors, (60), 17 states have call predecessors, (60), 17 states have return successors, (59), 59 states have call predecessors, (59), 58 states have call successors, (59) [2025-02-06 04:50:53,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 250 transitions. [2025-02-06 04:50:53,939 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 250 transitions. Word has length 129 [2025-02-06 04:50:53,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:50:53,939 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 250 transitions. [2025-02-06 04:50:53,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-02-06 04:50:53,940 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 250 transitions. [2025-02-06 04:50:53,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-06 04:50:53,942 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:50:53,942 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 04:50:53,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:50:53,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:50:53,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:50:53,943 INFO L85 PathProgramCache]: Analyzing trace with hash 56107127, now seen corresponding path program 1 times [2025-02-06 04:50:53,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:50:53,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233769191] [2025-02-06 04:50:53,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:50:53,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:50:58,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:50:58,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:50:58,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:50:58,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:51:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-02-06 04:51:00,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:51:00,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233769191] [2025-02-06 04:51:00,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233769191] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:51:00,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:51:00,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 04:51:00,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009171] [2025-02-06 04:51:00,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:51:00,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 04:51:00,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:51:00,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 04:51:00,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 04:51:00,949 INFO L87 Difference]: Start difference. First operand 191 states and 250 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-02-06 04:51:01,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:51:01,601 INFO L93 Difference]: Finished difference Result 321 states and 426 transitions. [2025-02-06 04:51:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 04:51:01,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 129 [2025-02-06 04:51:01,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:51:01,604 INFO L225 Difference]: With dead ends: 321 [2025-02-06 04:51:01,604 INFO L226 Difference]: Without dead ends: 216 [2025-02-06 04:51:01,605 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 04:51:01,605 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 14 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 04:51:01,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1624 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 04:51:01,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2025-02-06 04:51:01,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 197. [2025-02-06 04:51:01,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 116 states have (on average 1.1551724137931034) internal successors, (134), 117 states have internal predecessors, (134), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (62), 62 states have call predecessors, (62), 61 states have call successors, (62) [2025-02-06 04:51:01,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 259 transitions. [2025-02-06 04:51:01,621 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 259 transitions. Word has length 129 [2025-02-06 04:51:01,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:51:01,622 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 259 transitions. [2025-02-06 04:51:01,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-02-06 04:51:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 259 transitions. [2025-02-06 04:51:01,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-06 04:51:01,625 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:51:01,627 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 04:51:01,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 04:51:01,628 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:51:01,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:51:01,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2006407382, now seen corresponding path program 1 times [2025-02-06 04:51:01,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:51:01,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957945676] [2025-02-06 04:51:01,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:51:01,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:51:05,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:51:05,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:51:05,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:51:05,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:51:08,144 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2025-02-06 04:51:08,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:51:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957945676] [2025-02-06 04:51:08,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957945676] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:51:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663083609] [2025-02-06 04:51:08,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:51:08,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:51:08,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:51:08,148 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 04:51:08,150 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 04:51:12,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 04:51:12,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 04:51:12,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:51:12,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:51:12,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 4246 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-02-06 04:51:12,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:51:15,508 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= |c_#memory_$Pointer$#4.base| (store |c_old(#memory_$Pointer$#4.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#4.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#4.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= (store |c_old(#memory_$Pointer$#4.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#4.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#4.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#4.offset|))) is different from true [2025-02-06 04:51:15,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 04:51:15,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 04:51:15,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 04:51:15,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 04:51:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 87 proven. 32 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-02-06 04:51:23,754 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 04:51:30,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663083609] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:51:30,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 04:51:30,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13] total 16 [2025-02-06 04:51:30,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623898391] [2025-02-06 04:51:30,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 04:51:30,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 04:51:30,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:51:30,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 04:51:30,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=536, Unknown=1, NotChecked=46, Total=650 [2025-02-06 04:51:30,736 INFO L87 Difference]: Start difference. First operand 197 states and 259 transitions. Second operand has 16 states, 14 states have (on average 6.928571428571429) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (45), 5 states have call predecessors, (45), 7 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42)